Alpine lIFederal Final Report - Part 1 Drilling Report James C. Witcher!, Larry Pisto2 , W. Richard Hahman3 , and Chandler A. Swanberg" June 1994 ARIZONA GEOLOGICAL SURVEY CONTRIBUTED REPORT CR-94-E Prepared for the Arizona Department of Commerce Energy Office Phoenix, Arizona lGeologist, Southwest Technology Development Institute, New Mexico State University, Las Cruces, NM 2Core Division Manager, Tonto Drilling Services, Inc., Salt Lake City, UT 3Consultant-Registered Geologist, Las Cruces, NM 4Geothermal Consultant-Geophysicist, Phoenix, AZ Jhis report is preliminary and has not been edited or reviewed for conformity with Arizona Geological Survev standards . TABLE OF CONTENTS page LIST OF FIGURES : LIST OF TABLES LIST OF APPENDICES ACKNOWLEDGEMENTS 1.0 Introduction 1. ~ Background 1.2 Purpose and Objectives 1.3 Site Selection 1.4 Participants 1.5 Permits 1.6 Scope 2.0 Drilling and Site Operations 2.1 Drill Site Layout 2.2 Water 2.3 Drill Rig and Specifications 2.4 Well Control 2.5 Hydrogen Sulfide Monitoring 2.6 Well Site Geology and Operations Monitoring 2.7 Drilling Summary and Penetration Rates 2.8 Bit Performance 2.9 Drilling Mud Program 2.10 Lost Circulation 2.11 Formation Problems and Differential Sticking 2.12 Drilling Mud Temperatures 2.13 Observation Well Completion 2.14 Geophysical and Temperature Logging 2.15 Site Restoration and Well Abandonment.. 3.0 References ii iii iv v vi 1 1 1 4 5 6 7 8 8 10 10 12 13 15 16 21 25 27 29 33 36 38 40 41 LIST OF FIGURES figure page 1. Location map of the Alpine 1/Federal drill site 2 2. Layout of the Alpine 1/Federal drill site 9 3. Diagram of blowout prevention equipment for the Alpine 1/Federal borehole 14 4. Drilling history of the Alpine 1/Federal borehole 18 5. Core penetration rate versus depth for the Alpine 1/Federal borehole 24 Depth versus' lost circulation material (LCM) for the Alpine 1/Federal borehole 28 Depth versus time in days for the Alpine 1/Federal borehole 30 Depth versus TORKEASE for the Alpine 1/Federal borehole 31 9. Surface mud temperature versus drilling depth 34 10. Subsurface bottom-hole mud temperature (BHT) versus drilling depth 35 Temporary observation well completion diagram 37 6. 7. 8. 11. iii LIST OF TABLES table page 1. Types of data used for an initial Hot Dry Rock evaluation ..... 4 2. Specifications for the UDR 1500 drill rig 11 3. Specifications for HQ and NQ core 12 4. Footage of important activities, events, and milestones of the Alpine 1/Federal borehole 19 Daily footage log for coring operations of the Alpine 1/Federal borehole 20 5. 6. Core bit performance for the Alpine 1/Federal borehole........ 22 7. Drilling mud properties at various depths for the Alpine 1/Federal borehole 25 8. List of drill products with registered names and trademarks.. 26 9. Alpine 1/Federal temporary observation completion specifications 35 List of geophysical and temperature logs for the Alpine 1/Federal borehole 36 10. iv LIST OF APPENDICES appendix page 1. Summary of candidate drill sites 42 2. Participants and suppliers in the Alpine 1/Federal drilling project. 45 Core marking procedures for the Alpine 1/Federal borehole 48 3. 4. Coring operations log for the Alpine 1/Federal borehole....... 54 5. Summary well history of the Alpine 1/Federal borehole 68 6. Cement and drilling mud additives used in the Alpine 1/Federal borehole 79 Letter outlining a contigency plan to complete the Alpine 1/Federal borehole 92 7. v ACKNOWLEDGMENTS The community of Alpine, Arizona is thanked for their friendliness, hospitality, arid assistance to the drillers and geologists. The fax machines, good mail service, good meals, hardware and other vendors, and friendly smiles in Alpine all contributed to a successful drilling project. Personnel at the U. S. Forest Service (USFS), Apache-Sitgreaves Forest, Alpine District Office, provided valuable assistance by providing gate keys, locating an acceptable and nearby site to place drilling fluids, and suggesting a very good access from the highway to the drill site. Bob Dyson of the Alpine District Office is especially thanked. John Sass of the U. S. Geological Survey (USGS) is thanked for providing preliminary heat-flow data and discussions on the thermal regime of the area. Chuck Chapin, Director, and Richard Chavez of the New Mexico Bureau of Mines and Mineral Resources (NMBMMR) are thanked for sending a loading crew and a truck to Alpine to pickup the Tertiary core on loan from Larry Fellows, Director, Arizona Geological Survey (AGS). Informal discussions on the geology of the region with Wes Peirce (AGS-Emeritus), Steve Rauzi (AGS), Andre Potochnik (ASU), Steve Cather (NMBMMR), Richard Chamberlin (NMBMMR), and Clay Conway (USGS) are greatly appreciated. Tonto's outstanding drillers and helpers formed a highly proficient and enthusiastic drilling crew. Mike LaOrange, Tonto Drill Forman, and Larry Pisto, Tonto Core Division Manager, are especially thanked for their close coordination and good communications which assisted the geologists tremendously. The staff, secretaries, and students at SWTDIINMSU are also thanked for their assistance in various phases of this project. Funding for drilling the Alpine 1/Federal corehole was the Arizona Department of Commerce, Energy Office and the U. S. Department of Energy, Geothermal Division. vi 1.0 1.1 INTRODUCTION BACKGROUND Regional geologic and geophysical surveys, shallow temperaturegradient drilling, and published reconnaissance geothermal studies infer possible hot dry rock (HDR) geothermal resources in the Alpine-Springerville area. This report discusses the results of a State of Arizona and U. S. Department of Energy funded drilling project designed to gather the deep temperature and stratigraphic data necessary to determine if near-term HDR geothermal potential actually exists in this portion of the White Mountains region of Arizona. A 4,505 feet deep slim-hole exploratory well, Aipine1/Federal, was drilled within the Apache-Sitgreaves National Forest at Alpine Divide near the Alpine Divide Camp Ground about 5 miles north of Alpine, Arizona in Apache County (Figure 1). 1.2 PURPOSE AND OBJECTIVES Hot dry rock (HDR) geothermal energy is a method of mining or extracting the natural heat energy within the earth (Tester and others, 1989). As originally conceived by scientists and engineers at Los Alamos National Laboratory, heat is extracted from relatively impermeable rock by artificially fracturing a hot volume of rock and introducing water into the man-made fracture system with an injection well (Potter and others, 1974). A second well removes or produces the heated water from the fracture reservoir for use 1 Figure 1. Location map of the Alpine 1/Federal drill site. 2 at the surface. The concept, as currently field tested, requires a relatively impermeable rock volume with predictable fracturing characteristics. A volumetrically-large, structurally-simple rock body with high temperatures is desired. The crystalline basement rocks (i. e., Precambrian granite) make potentially good hosts. The types of Precambrian basement rocks beneath the AlpineSpringverville area are not known. Precambrian rocks in most deep wells and in surface outcrops nearest to the area are metamorphic rocks or metasedimentary rocks, not granite. Furthermore, the actual depth to Precambrian crystalline basement can only be inferred from sparse well and outcrop information in the Alpine-Springerville area. Unusually high temperature gradients have been measured in shallow «1,200 feet depth) boreholes in the eastern White Mountains region (Minier and Reiter, 1991 and Stone, 1980). Prior to drilling, uncertainty existed as to actual temperatures at greater depth. Flowing ground water in a deep aquifer or significant changes in subsurface thermal conductivity beneath the existing shallow heat-flow measurements could be reflected by drammatically changed temperature gradients at depth. Prior to drilling, regional geological analysis suggested that the Kaibab-Coconino (San Andres-Glorieta) aquifer was missing beneath the area of highest measured temperature gradients at Alpine Divide. However, geologic and geothermal uncertainties in the region required clarification by a deep borehole before a reliable assessment of the HDR potential could be presented. 3 Table 1 lists the types of information that are useful in HDR assessments. Table 1. Types data used for an initial Hot Dry Rock evaluation. TYPE DATA lithology (type of rock) rock mechanical properties rock permeability and porosity structure (fractures, faults, and joints) rock thermal properties heat production in situ stress temperature nature of basement fluids METHOD core core logs and core logs and core core core logs or borehole logs water samples The main objectives of the Alpine1/Federal drilling project were to drill at least 100 feet into crystalline Precambrian basement, determine subsurface temperatures, temperature gradients, and heat flow. Based upon sparse regional geologic information, the target depth was selected at 4,500 feet below the surface at the Alpine Divide site (see Appendix 1). Overall, the primary mission of the drilling project was to obtain the data necessary to determine subsurface temperatures deep into the Precambrian basement and assess the HDR geothermal energy potential of the eastern White Mountains region. 1.3 SITE SELECTION The Alpine Divide site was selected as the best site to evaluate the geothermal potential of the region. This site easily ranked as the highest in 4 terms of geothermal potential. The subsurface temperatures at this location were highest for two important reasons. First, the depth to Precambrian basement is greater and the sediments that act as thermal blankets have greater thickness. With the same heat flow, this translates into higher temperatures because intervals with low thermal conductivity sediments have higher temperature gradients than intervals with high thermal conductivity rocks. Second, the site is known to have the highest measured temperature gradients (and heat flow) in the area (71 °C/km) (Stone, 1980). Prior to drilling, regional geologic relationships suggested that the cavernous Kaibab (San Andres) limestones may be missing or thinned considerably below an unconformity at this site (see section 7.3 Part 2 of this report). Therefore, from a drilling standpoint this site ranked the highest because the Kaibab (San Andres) Formation has serious potential for drilling problems. Access to the site was very good as the site was immediately adjacent a paved highway. In addition, the subsurface geology was known to depth over 1,000 feet. This insured that cementing of the surface casing and testing of the blowout prevention equipment (BOP) proceeded smoothly prior to deep exploration drilling and that safety equipment was well anchored for safe deep drilling. Appendix 1 summarizes the attributes and drawbacks of candidate sites for the Alpine1/Federal borehole. 1.4 PARTICIPANTS The Alpine Geothermal Project was administered by the State of Arizona Department of Commerce, Energy Office, Phoenix with procurement 5 through the Arizona Procurement Office, Phoenix. Funding was a grant from the U. S. Department of Energy, Geothermal Division, Washington, D. C. to the State of Arizona with a matching contribution from Arizona's share of the Petroleum Violation Escrow Funds. U. S. Department of Energy oversight of the project was through the DOE Albuquerque Field Office. In addition, the State of Arizona Department of Commerce, Energy Office, formed a Geothermal Evaluation Committee to provide assistance in project direction and procurement (see Appendix 2). Prime contractor to the State of Arizona for the Alpine Geothermal Project was Tonto Drilling Services, Inc., Salt Lake City, Utah. Well site geotechnical services, permit coordination, and reporting were subcontracted by Tonto to the Southwest Technology' Development (SWTDIINMSU) at New Mexico State University. Institute The U. S. Geological Survey (USGS), Geothermal Division, an invited participant, contributed equipment and personnel toward heat-flow studies of the Alpine1/Federal borehole. Appendix 2 also lists some of the major suppliers for the drilling project. 1.5 PERMITS All operations conformed to the regulations, permitting and operational procedures administered by the USFS, the U. S. Bureau of Land Management (BLM) and the Arizona Geological Survey (AGS), Oil and Gas Administrator. All access and surface issues were closely coordinated with the USFS. All drilling was in compliance with federal Geothermal Resources 6 Operational Orders (GROO's), directives of the USFS, BlM, AGS, and stipulations of the permits. Prior to commencing any operations, specific details were submitted to the USFS, BlM, AGS through the Applications for Permits to Drill (APD's) or Sundry Notices. Access to the drill site road from the highway was permitted with the Arizona Department of Transportation (ADOT). As operator, Tonto Drilling Services posted a Plugging Bond with the AGS and a Compliance Bond with the USFSlBlM. Daily communications (as needed) and weekly communications with Federal and State regulators was maintained throughout the project. The U. S. Forest Service assisted in locating an acceptable drilling mud disposal site very close to the drilling location. 1.6 SCOPE This report, Part 1, Drilling Operations, on the Alpine1/Federal geothermal test hole details the drilling operations at the Alpine Divide site. This report provides a brief case study of a successful slim-hole drilling operation. Second, because drilling rates, procedures, and problems are usually a consequence of subsurface geological conditions, the initial discussion of drilling operations provides a suitable springboard to detail subsurface stratigraphy encountered in the Alpine1/Federal hole. The subsurface geology in the Alpine1/Federal borehole is discussed and interpreted in Part 2, the companion to this report. In addition, Part 2 interpretes the subsurface temperature regime of the Alpine-Springerville area and discusses the near-term potential for HDR in the area. 7 2.0 2.1 DRILLING AND SITE OPERATIONS DRILL SITE LAYOUT The Alpine1/Federal borehole is adjacent to temperature-gradient hole SJ116 in the southwest quarter of section 32, Township 6 North, Range 30 East, 1,153 feet from the west section line and 2,122 feet from the south section line at an elevation of 8,556 feet at Alpine Divide on the north side of U. S. Highway 180/191/666 (Figure 1). The drill site is located on U. S. Forest Service land within the Apache-Sitgreaves National Forest. Access to the drill site is via a former logging road which intersects U. S. Highway 180/191/666 about 1,500 feet north of the site. A locked gate at the highway provides controlled entry on to the all-weather gravel logging road. Approximately 250 feet of gravel was laid down from the logging road for temporary all-weather final egress to the drill site. Minimal dirt work included preparing a level substructure pad and the digging of a small 'U' shaped mud-pit on the southside of the drill rig (Figure 2). The blowout prevention (BOP) controls (accumulator), water tanks, and mud-mixing tank were installed on the north side of the drill rig. Overall layout provided for efficient water, mud, and equipment resupply, drilling operations, and well site geotechnical operations. 8 driU . . . :: is = > e.,. =IE I -.. I 0( I I , N I Figure 2. I 20 feet J Layout of the Alpine 1/Federal drill site. 9 2.2 WATER Water for drilling operations was obtained from Luna Lake, located east of Alpine and approximately 7 miles from the drill site, with Tonto's 3,500 gallon capacity water truck. With approval of the Arizona Department of Game and Fish and the New Mexico State Engineers Office, two acre-feet (-700,000 gallons) of water was purchased from the Luna Irrigation District, Luna, New Mexico to cover all possible drilling contingencies. Actual water consumption by the Alpine1/Federal drilling operations was less than 150,000 gallons. About half of the water consumption occurred during the drilling of lost circulation zones in the lower 1,200 feet of the hole. 2.3 DRILL RIG AND SPECIFICATIONS A truck-mounted and removeable Universal Drill Rig 1500 (UDR1500) cored the Alpine1/Federal hole. Table 2 lists important specifications for the UDR1500 drill rig. The UDR1500 is a top drive rig that is specifically designed for deep continuous wireline diamond core drilling and shallow rotary drilling. The UDR1500 utilizes hydraulic drives for the drill motors, pumps, and hoist, allowing excellent variable controls for difficult and critical drilling situations. The rig hydraulics are powered by a 230 hp at 2,100 RPM 6-71 N Detriot diesel engine. A 52 foot long mast permits 40 feet rod stands for efficient tripping. 10 ....T~a_b_le_2.......__ Specifications for the UDR-1500 drill rig. category subcategOry specification HQ NQ 5,400 ft 6,560 ft length width height weight 8 ft, 2 in 11 ft, 6 in 42,900 Ib length rod pUll capacity angle safe working capacity 52 ft, 6 in 40 ft rod stands vertical to 45 degrees 50,800 Ibs force drive hydraulic-driven, mounted at the top of the mast 50,800 Ibs force fail-safe hydraulic brake DIMENSIONS 52 ft, 6 in MASTIDERRICK MAIN WINCHIHOIST maximum pull brake variable pull or lowering speeds 0- 281 ftImin at 10,290 Ibs force 0-66 ftImin at 44,900 Ibs force WIRELINE WINCH drive wireline maximum pull infinitely variable line speeds hydraulic-driven, mounted on the rear side of mast 6,560 ft of wire rope (0.3125 in diameter) 10,110 Ibs force 0-1,410 ftImin . HYDRAULICS three circuit hydraulic system hydraUlic oil filter system main mudpump cylinder 10 micron POWER Detroit diesel GM 6-71N 238 hp at 2,100 rpm noise shielded 264 gal fuel tank (1,000 liter) 110 volt, 8kw electricity generator ROTATION 0-1,500 rpm variable speed hydraulic top drive travel distance/feed length pUll back force pUll down force swivel lubrication 24 ft 32,0001bs 15,700lbs floating spindle with mud swivel filtered-jet lubricated gears drive breakout and makeup tool hydraulic-driven torque up to 13,500 Ibs hydraulic-driven FMC Bean L1122B 40 gpm at 1,000 psi SLIPSIFOOTCLAMP PUMP 11 At the drill site, the UDR1500 was mounted on a 12 feet tall heavy steel substructure to allow clearance for BOP equipment and to provide a stable drilling platform. Depth capacity with HQ coring is 5,400 feet and about 6,560 feet, the total length of the wireline, with NQ coring. Table 3 lists the size parameters for HQ and NQ core. Table 3 CORE SiZE HQ CORE HQ and NQ core specifications. PARAMETER SPECIFICATION CORE DIAMETER HOLE DIAMETER HOLE VOLUME RODOD RODID ROD WEIGHT ROD VOLUME 2.50 inches 3.85 inches 58.3 gall100 ft 3.5 inches 3.0625 inches 77lbl10 ft 38.2 gall100 ft CORE DIAMETER HOLE DIAMETER HOLE VOLUME RODOD RODID WEIGHT ROD VOLUME 1.875 inches 3.040 36.3 gall100 fl 2.75 inches 2.375 inches 521b110 ft 23 gall1 00 ft NQ CORE 2.4 WELL CONTROL In the event that pressured fluids, gas, or rapidly boiling or flashing super-heated water entered the Alpine1/Federal borehole, several steps were taken to insure that well discharges would be controlled. Well control consisted of blowout prevention (BOP) equipment, a choke manifold, a drill string safety valve, an auxiliary water tank with a minimum of 275 bbls (11,550 gallons) of water on site, and the monitoring of bottom-hole 12 temperatures (BHT) and mud return temperatures. The BOP stack consisted of a double-gate ram and a 1,000 psi annular preventer installed on a 7 1/16 inch well head with flow (choke) and kill line ports (Figure 3). Hand H Oil Tool provided the BOP stack for the A1pine1/Federal project. An optional rotating head is shown in Figure 3. However, the rotating head was not actually installed. The kill line port was connected to the auxiliary water tank via a pump. The flow port was connected to an API 2M manifold choke valve that was securely anchored in place at the mud pit. The drill string safety valve was kept in an easily accessible location on the drill floor with the valve in an open position. The BOP stack, manifold choke valve, and drill string safety valve were all tested to 1,000 psi for 30 minutes. The pressure tests . were witnessed by Steve Rauzi, AGS Oil and Gas Administrator and John Haas, BlM. The drive for the actuating system that is used to instantly close the pipe ram, the blind ram, the annular BOPs consisted of a hydropneumatic accumulator. 2.5 HYDROGEN SULFIDE MONITORING Tecton Geologic of Healdsburg, California provided industry standard automatic hydrogen sulfide continuous-monitoring detectors with visual and audio alarms. Hydrogen sulfide detectors were installed at suitable locations to include on the drill floor, below drill floor on the substructure near the BOP equipment, and at the flow-line discharge or choke manifold, near the mud pit. Alarms were set to trigger at 20 ppm hydrogen sulfide. A wind sock was also installed at a location visible to all site personnel. 13 -- ROTATING HEAD MUD ANNULAR PREVENTER PIPE RAM SET - ~~~~~ > III~ BLIND RAM SET - ~~~~~ Figure 3. GATE CHOKE AND KILL 7 1/16# \JELLHEAD ------ CASING DOUBLE OUTLETS ~ Diagram of blowout prevention (BOP) equipment for the Alpine 1/Federal borehole. 14 Self-contained breathing equipment (Scott Paks) were placed for emergency use at three different locations to include the briefing areas. Two briefing areas were designated at the drill site. These areas were situated to provide one briefing area that would be upwind of the hole at any given time. 2.6 WELL SITE GEOLOGY AND OPERATIONS MONITORING Well site geotechnical operations included making field geologic logs of core and cuttings and curating core for storage and future study. Appendix 3 details the core marking procedures for the Aipine1/Federai test hole. After the core was boxed, marked and described, the core was taken to Alpine to be photographed and placed in temporary storage. After the core was photographed, 3-to-6 inch pieces of core at approximately 50 intervals were selected and removed from the core boxes for thermal conductivity measurement. Appendix 8, Part 1 contains the field geologic log. Core boxes 1 through 301 with HQ core from 500 feet to 3,265.5 feet, the Tertiary stratigraphic section, are stored at the New Mexico Bureau of Mines and Mineral Resources, at Socorro, New Mexico. In addition, 4 to 6 inch pieces of core at ten feet intervals, generally selected at the end or beginning of a core run, from the 500 to 3,265.5 feet interval are also stored at the Arizona Geological Survey at Tucson, Arizona. Core boxes 302 through 432 with HQ and NQ core from 3,265.5 to 4505 feet, the Mesozoic and Paleozoic stratigraphic section, are stored at the Arizona Geological Survey. photography, as color slides, is on file at the Arizona Geological Survey. 15 Core Starting at 2,244 feet depth, bottom-hole temperatures (BHT) were taken at approximately 50 feet intervals with a maximum thermometer that was sealed in a water-tight container. The thermometer container was attached to the wireline overshot that was used to retrieve the core tube and core at the end of a coring run. In addition to the BHT measurements, periodic readings were taken of the mud return temperatures at the manifold valve discharge into the mud pit. Mud return temperatures were begun at 854 feet depth. Operations monitoring include9 keeping a core log, daily report log, and a well history log. A summary of the core log is listed in Appendix 4. The core log was used to track penetration rates, daily footage rates, time between core runs, core recovery rates, and footage depth. The daily report log was used to document footage per shift, BHT and mud return temperature measurements, all drilling activities, materials used in drilling, and hours worked by SWTDI/NMSU personnel. A well history log complemented the daily report log. The well history log was used to record chronologically important events at the well site such as visitors, drilling milestones, or any other events not recorded by the core log and daily report log. Appendix 5 is a summary of important information contained in the daily report log and the well history log. 2.7 DRILLING SUMMARY AND PENETRATION RATES Award of the Alpine 1/Federal drilling contract was given on 1 April to Tonto Drilling Services of Salt Lake City, Utah. 16 In coordination with Tonto and the Arizona Department of Commerce all permits from Federal and State agencies were acquired and a Plan of Exploration Operations and a Geologic Logging and Core Marking Plan were prepared by Tonto's geotechnical subcontractor, Southwest Technology Development Institute, New Mexico State University, Las Cruces, New Mexico, between April and July. The Tonto drill rig began moving on to the site on 1 July (day 0, Figure 4) (also see Table 4 and Appendix 5). However, drilling start-up was delayed by the refusal of a subcontracted truck driver to unload the substructure and mud tank on location. The truck driver claimed that the first turn on the access road from the highway was too narrow. However, other trucks of the same size and the drill rig managed to negotiate the turn on this former logging road with no problem. Start-up was also delayed by the failure of Tonto's crane on 3 July (day 2, Figure 4) just before the 4th of July. On 7 July (day 6 Figure 4) the borehole was spudded. By 13 July, 500 feet of surface casing was cemented and the blowout prevention equipment (BOP) nippled-up and tested (Figure 4 and Appendix 5). Some initial problems with rig hydraulics were experienced; however, the hydraulics problems were solved by Tonto field crews in the first few days. An occasional problem with the core catcher in the core tube resulted in minor core slippage. However, core recovery for the Alpine 1/Federal hole exceeded 99.5 percent (see Appendix 4). 17 40 (]'I IIII"'O __ ~"'''''''' o o '1OCoWi4* IIP~, 1III'i............. 50 21 lIP-IlliTe o o o - ......- - 1174 awo lUI RIIld (]'I o o .......... -N CD (]'I ~O '--" 0 0J o o o bII Cl1.......... 2DIDat_ bii,iiIIIUUi...... tIII8--......,.- _ 0J (]'I o o ~ o o o ~ (]'I o o Figure 4. Drilling history of the Alpine 1IFederai borehole. 18 60 TABLE 4 Footage of important adivity, events, and milestones of the Alpine1/Federal hole. depth ft activity o mobilization/rig-up run condudor casing change bit (tricone) bit balling-upJtrip-outJtrip-in/condition hole run surface casingIWOC/nippie-up BOP/make-up core string bit change (diamond core) change-out mud bit change shut down/change-out mud/haul water/condition hole bit change dropped core/recovered bit change/add 20 foot core barrel/condition hole change-out mud/condition hole bit change/chase cave/condition hole condition hole condition hole/replace overshot/bit change/replace bent rod rods torque-up while coring change-out mUd/condition hole/bit change/replace bent rod differential stucklcementIWOC/reduce to NO drill string LCM slugs/condition hole LCM slugs/condition hole LCM slugs/condition hole LCM slugs/condition hole/haul water LCM slugs/condition hole LCM slugs/condition hole rods stick when pulling tube/condition hole differential stUck/circulate and work free core barrel mislatchlbit change LCM slugs/condition hole LCM slugs/condition hole LCM slugs/condition hole LCM slugs/condition hole total depth/cut HO rods/pull cut HQ string/run NO as casing/rig-down/demob 20 231 474 500 934 1174 1669 1694 2544 2795 2922 3046 3054 3077 3207 3236 3337 3369 3415 3439 3449 3475 3515 3535 3725 3765 3775 3815 3835 4135 4145 4505 The daily footage rate averaged about 137 feet per day for the period between 13 July and 31 July (Table 5). Footage rates for the period 14 JUly to 19 July averaged 178 feet per day and dropped to 131 feet per day between 21 July and 28 July. Between 29 July and 31 July the daily footage rate decreased to 74 feet per day as the Baca Formation was penetrated. 19 TABLE 5 date 7/13 7/14 7/15 7/16 7/17 7/18 7/19 7f20 7f21 7/22 7f23 7f24 7f25 7f26 7f27 7f28 7f29 7130 7/31 8/1 8f2 8/3 8/4 8/5 8/6 footage feet/day 67 190 170 190 170 180 180 60 155 153.5 131.5 110 130 135.5 104.5 130 76.5 91.5 54 50 38 42 59 52 29 8n 72 8/8 8/9 8110 8/11 8/12 8/13 8/14 8/15 8/16 8/17 8/18 8/19 29 1 14 17 0 0 0 30 76 40 70 70 70 50 80 120 110 110 89 91 100 30 8f20 8f21 8f22 8f23 8f24 8f25 8f26 8f27 8f28 8f29 Daily footage log of the Alpine1/Federal hole. remarks coring HQ/10 foot core barrel bit change bit change bit change bit change bit change chase cave rods torque-uplbit change/dented rod replaced chase cave/rod torque-up pull back and condition hole/chase cave bit change/dentedrods replaced/chase cave HO string differential stuck/unable to free rods cementIWOC/reduce to NO string WOC/drill-out cement re-cementIWOC drill-out cement/core NO lost circulationILCM slugs/condition hole lost circulationILCM slugs/condition hole lost circulationlLCM slugs/condition hole differential stucklworked free/core barrel mislatchlbit change lost circulationlLCM slugs/condition hole lost circulationlLCM slugs/condition hole total depth (4505 feet) 20 Core penetration decreased substantialy during the first half of August as compared to the rates in July. Rates were generally less than 50 feet per day, compared to more than 100 feet per day in July. Depth of drilling played some role in the rate decrease; however, the nature of the lower Baca Formation was the primary cause of penetration rate reduction. Drilling rates increased dramatically after the NQ reduction and the bad formation in the lower Baca was cemented behind the HQ rods. NQ core rates for the lower 750 feet of the Alpine 1/Federal averaged about 100 feet per day. A 100 feet per day rate of coring at depths below 3,500 feet is generally regarded as excellent, especially considering the time to pull the core tube, retrieve the core, and then send the tube back to bottom in order to resume coring. 2.8 BIT PERFORMANCE Core bit performance for drilling the Alpine 1/Federal hole was generally very good (Table 6). In 2,869 feet of formation coring, seven HQ bits and 3 HQ reamer shells were used. Also, two NQ bits and 2 NQ reamer shells were used for 1,136 feet of formation coring. An additional "used" NQ bit was used to core out cement. A ten foot core barrel was employed except for the 2,922 feet to 3,369 feet interval (447 feet), where a 20 foot core barrel was used. All core bits were diamond bits except for the HQ-3 bit which was a carbide bit. 21 Core bit performance. Table 6 bit HQ1 HQ2 HQ3 HQ1 HQ4 HQ5 HQ6 HQ7 NQ1 NQ2 NQ3 top ft 497 934 1,669 2,544 2,922 3,054 3,207 3,337 bottom ft 934 1,669 2,544 2,922 3,054 3,207 3,337 3,369 footage ft 437 735 875 378 132 153 130 32 3,369 3,775 3775 4,505 406 730 SIN shell remarks 3Q30126 L12627 20241 3Q30126 L20078 32214/11 32214/12 1Q16424/4 7557 L20966 28145-1 3R940 3R951 3R940 3R951 3R940 3R951 3R948 3R948 3R1819 3R1819 3R823 10' core barrel 10' core barrel 10' core barrel/carbide bit 10' core barrel/bit reused 20' core barrel 20' core barrel 20' core barrel 20' core barrel/left in hole used bit/core-out cement 10' core barrel 10' core barrel Where the formation held up well the HQ diamond bits averaged 775 feet. The NQ bits averaged 568 feet of footage. From 2,922 feet to 3,369 feet depth, HQ bits 4 through 7 averaged only 112 feet of footage. While a 20 foot core barrel was used during drilling with these bits; the lower footages are attributed to bad formation. The Saca Formation drilled in this interval contained very hard resistant gravels in a matrix of clay and sandy clay. The clays tended to swell and washout easily, releasing gravel, "cave" into the borehole. Washed out clay and sand contributed to downhole drill string torque and bent rods. The resistant gravel as "cave" contributed to much uneven bit wear. The carbide bit had a footage of 875 feet. A carbide bit was selected because the formation drilled by the carbide bit had much fine-grained silt and clay-rich strata, which can polish or plug a diamond bit face. 22 Figure 5 is a penetration diagram for coring of the Alpine 1/Federal bore hole. The penetration rate is a function of many variables. Among the more important are formation properties and bit type. Between 500 and 1,669 feet (bits HQ-1 and HQ-2), penetration time ranged from 4 to 8 min/ft. The carbide bit penetration from 1,669 to 2,544 feet depth, ranged from 4 to 12 min/ft. The greater variability is probably a function of changing rock types of an interbedded claystone, siltstone, sandstone sequence. The interval from 2,544 to 2,922 with the HQ-1 bit shows a general decrease in penetration from 6 to 12 min/ft. A generally increasing penetration time with depth in this interval is attributed to formation changes, rather than bit wear. Penetration of the 2,922 to 3,369 feet interval, bits HQ-4 through HQ-7 is highly variable with penetration times generally greater than 15 minlft. Rates exceeding 30 min/ft were common. Rates for NQ-2 (3,369 to 3,375 ft) are also highly variable and generally range from 8 to 16 min/ft. Penetration for NQ-3 is relatively steady and averages about 7 min/ft from 3,775 feet to about 4,250 feet. From 4,250 feet to 4,505 feet depth, the penetration is about 10 min/ft and is somewhat variable between 8 and 15 min/ft. A total depth of 4,505 feet was reached on 29 August and the hole was completed as a temporary observation hole by 31 August. The NQ rods where left in the hole to function as temperature observation tubing and to provide a contingency for re-entry to deepen the Alpine 1/Federal to Precambrian basement 23 PENETRATION RATE (min/ft) 20 30 40 50 60 o~+-=::::ii=-----------------.-.. 0 0 0 .-.. (J1 0 0 ON 1"'1 0 -0 0 -10 I ,.-..., --N ctl(J1 ~o """"'0 BQ-l VJ 0 0 0 BQ-4 BQ-5 BQ-6 BQ-' VJ (J1 0 0 ~ 0 0 0 ~ (J1 0 0 Figure 5. Core penetration rate versus depth for the Alpine 1/Federal borehole. Core bit footage is also shown. Bit labels correspond to labels in Table 6. 24 2.9 DRILLING MUD PROGRAM Summit Drilling Fluids, Denver, Colorado provided drill mud supplies and services for the Alpine 1/Federal borehole. Summit's mud engineer, Mr. Kevin Buchanan of Tucson, Arizona, periodically tested the drilling mud and made recommendations for the drilling mud program. Maintenance of proper drilling fluids is important in lubricating the hole, cleaning the hole of cuttings, stabalizing cored formations, and preventing lost circulation. Table 7 shows the measured properties of the drilling mud at various depths during drilling. An ideal mud for the Alpine 1/Federal borehole has a weight of about 8.4 Ib/gal, a viscosity of 30 to 40 s/qt, a trace percentage or less of sand, and less than 1.5 percent solids. The interval from 3,076 to 3,338 feet shows deviation from ideal mud conditions. Formation washout and clay addition to mud was difficult to control in this interval even with frequent mud and hole conditioning. Drilling mud properties for the Aipine1/Federai borehole. Table 7 date depth eire viscosity weight volume 7114193 7/15193 7120193 7129/93 8f3J93 814193 8110193 8116/93 8118/93 8123193 8125193 ft gal slqI Iblgal 634 805 1689 1245 1311 1652 2007 2187 2196 2289 '2297 2320 2424 2479 54 35 8.4 8.5 8.5 8.5 8.6 8.6 8.6 8.5 8.4 8.4 8.4 2779 3076 3098 3338 3447 3535 3935 4145 37 39 41 47 61 42 58 51 48 mud filtrate WIlli gradient cake peiIft cm 3130 API min 0.4368 12 0.4420 14.2 11 0.4420 0.4420 7.4 0.4470 7.6 0.4470 7.2 0.4470 7.4 11 0.4420 0.4368 11.8 18.6 0.4368 0.4368 11.6 25 pH 10 9 8.5 8 8.5 8.5 8.5 9.5 9.5 9 8.5 sand BOIIda hardness CI rngIIC8 mgIl % vol % vol 40 300 240 300 0 tr tr 1 1.5 1.5 1.5 2 2 2 1.5 1 1 1 80 40 20 40 40 40 400 tr 500 500 500 0.75 1 0.5 tr 400 400 400 tr tr tr 20 500 tr tr tr Appendix 6 provides brief descriptions and shows consumptive use of the drilling mud additives and related materials for the Alpine 1/Federal borehole. Table 8 is list of registered produd names. Cement use was confined to cementing surface casing and HQ rods at 500 and 3,360 feet, respedively. Table 8 List of drilling produds with registered names and trademarks. product company DRISPAC Drilling Specialities Company, Inc. SDF K-LA LUBE PLUS Summit Drilling Fluids, Inc. SDF RING FREE L PLUS Summit Drilling Fluids, Inc. SDF 2000 Summit Drilling Fluids, Inc. SDF SUPER GEL Summit Drilling Fluids, Inc. TORKEASE Drilling Specialities Company, Inc. Use of drilling detergent to stabilize clay began below 3,000 feet depth. Use of Drispac Plus, a drilling polymer, was fairly constant except for the lower 1,000 feet when usage doubled. K +La Lube Plus, a biodegradable liquid lubricant, had a useage decline between 2,000 and 3,000 feet depth. Rod grease, used to reduce formation sticking, was used only below 3,370 feet depth. Ring Free, used to reduce mud viscosity and clean mud rings, was used regularly from 2,000 feet to total depth. SDF 2000, a drilling polymer, had decreased use between 1,500 and 3,370 feet depth. Use of soda ash increased below 3,000 feet to control pH and calcium content of the mud. 26 Anhydrite and limestone are abundant below 3,000 feet in the Alpine 1/Federal borehole. SDF Super Gel, a bentonite drilling mud, was used mainly to rotary drill the upper 500 feet of the hole and to build wall cake and control circulation losses between 3,370 and 3,850 feet depth (interval is mostly the porous Dakota and Glorieta/Coconino Sandstones). 2.10 LOST CIRCULATJON Three major lost circulation zones were encountered in the San Andres/Glorieta (Kaibab/Coconino), and Yeso (Supai) Formations. However, full and partial returns were maintained during most of the drilling through these intervals. Where circulation was lost, the hole was conditioned with lost circulation material (LCM) slugs. The LCM slugs were circulated after the drill string was pulled back at the end of a core runs. Figure 6 shows borehole depth versus LCM with a pre-equilibrium temperature log superimposed. Negative spikes in the temperature log indicate formation cooling effects that result from loss of drilling fluids. Major cooling spikes match the depths where LCM was used. Lost circulation was almost entirely due to open fractures; although significant intergranular porosity was evident in the Glorieta (Coconino) Formation. Intergranular porosity was indicated by selective drill mud sieving (Le. mud buildups on outer core surfaces where grain cementation is low). 27 ..... 0 0 0 ..... (J1 0 0 0"" f"T10 lJO --f0 TEMPERATURE (F) I ..---. --"" ~O CD 1 (J1 90, ,'to, I , ,'1°, I , ,'9°, ! , 1 ~O USGS TEMPERATURE LOG '--" 0 8/31/93 GJ 0 0 0 GJ (J1 0 0 ~ 0 0 0 ~ (J1 0 0 Figure 6. Depth versus lost circulation material (LeM) for the Alpine 1/Federal borehole. The inset graph shows temperature versus depth aaoss the interval of lost circulation one day after drilling stopped. 28 2.11 FORMATION PROBLEMS AND DIFFERENTIAL STICKING Starting at 2,700 feet depth, maintenance of proper drilling mud became increasingly difficult and penetration rates slowed (Figure 7) The sandy clay and clayey sand in matrix-supported conglomerate and gravels in the basal Baca Formation were easily eroded from the borehole walls. As a result, the drilling fluids became more viscous and sandy. Formation washouts also left loose gravel behind that fell into the hole and contributed to drill string sticking. Figure 8 shows depth intervals for the application of the drilling mud additive, TorkEase, which was used to reduce drill string friction. The sticking and wedging resulted in bent drill rods on two occasions (see Figure 4). Rather than reduce from HQ to NQ coring at the base of the Baca and place the bad formation behind cement and the HQ drill string, Tonto decided to continue carefuly and slowly coring HQ to insure against premature drill string reduction to NQ size drill string. Prior to actual drilling, the Permian San Andres/Kaibab and Glorieta/Coconino Formations were identified as potential problem zones for drilling that could require reduction from HQ to NQ core (see Appendix 1). A reduction from HQ to NQ core was forced because the drill string became differential stuck. Differential or hydraulic stuck is a term used to describe a condition where the drill string is unable to be turned and/or be withdrawn or advanced without snapping the rods. This results when differential hydraulic pressures push the drill string into the hole wall and friction prevents rod movement. 29 40 (]I 50 60 IIIIhoIDgy . . . 0 0 ...... ----.-.- ~--- ...... lIl111llGllIlDi.. ':.;:':: 0 0 0 .,..., ~ ';-H IiiMli8ane =m. dll6cImiOIt ~ CCIIllllo"'."" :::. IIII1deIiIlt balIIIIt ...... BY v vv ./vv --- (]I rtIyoIitlt - 0 0 UJ o o o Figure 7. Depth versus time in days for the Alpine 1IFederai borehole. A summary stratigraphic column is shown for comparing geology with daily drilling progress. 30 TORKEASE o 1 234 5 6 o-+-.w.-'-.I-I.....l-J.....J......I-l-J....J-"J.......~.-l-..l-J,......I-.........I-.l-J..~l.....J-...L...J CJ1 IIIIIcI60cw ~ o -.....-...--~" ............ ..... ............. .--.... ..... ........................ .... o ---- ..a........... -.--.- 0 0 0 ..... CJ1 0 0 0'" 1"'T10 -0 0 """"'iO I DAYS .--... 20 -I\.) C'O(J1 30 40 50 60 ~O '-" 0 GJ 0 0 0 GJ (J1 0 0 ~ 0 0 0 ~ (J1 0 0 Figure 8. Depth versus TORKEASE for the Alpine 1IFederai borehole. The inset graph shows the stratigraphy and daily drilling progress for the lower portion of the hole. 31 Drilling detergent is circulated to loosen the mud and sand cake along the hole wall while carefully working the rods back and forth. If this fails to unstick the drill string when the wireline continuous core drilling method is used, drilling resumes through the larger and stuck drill string with a reduced size drill string. When rotary methods are used, it is necessary to back off and retrieve the string above the stuck interval and use jars and fishing tools to fish the remaining string from the hole. A fishing job can be very expensive and is sometimes unsuccessful, resulting in loss of the hole. In the Alpine1/Federal hole, the drill string became differential stuck, with circulation returns at 3,360 feet, atter pulling back from 3,369 feet to pull the core tube. Because the bit was not on bottom, the Tonto elected to cement the the lower part of the HO string in place when detergent and working the rods for 36 hours failed to free the string. The cement job insured that the HQ reamer shell and HQ bit would stay in place during later drilling with the NQ string. Two cement jobs with a total of 22 sacks of cement were used to cement the HQ string in place. Coring with a reduced NO string resumed on 16 August. Good penetration rates returned. The NO drill rods became differential stuck at 3,765 feet depth on 21 August. Circulation of detergent and working the rods for 1 hour successfully freed the drill string. The core barrel mislatched on the the next core run from 3,765 to 3,775 feet depth, resulting in the only significant loss of core in the Alpine1/Federal borehole. No more significant drilling problems were encountered. 32 2.12 DRILLING MUD TEMPERATURES Two types drilling mud temperatures were measured during drilling operations. Both measurements are primarily intended to insure safe drilling and comply with federal Geothermal Resources Operations Orders (GROOs), especially where very high temperatures may be encountered. Figure 9 shows mud temperatures measured periodically at the surface after reaching the maximum depth of the adjacent SJ-116 temperature gradient hole. Very little systematic variation occurs. The decrease in mud temperature below 3,500 feet depth is attributed to different heat transfer between the formation and the smaller NQ drill string which has drill fluid circulation rates similar to the larger HQ string. Figure 10 shows mud temperatures measured down the hole at the end of core runs. These bottom hole temperatures (BHT) measurements are taken with a maximum thermometer placed inside a sealed bomb that is placed on the overshot. Readings are taken for 10 minutes after the wireline lowers the overshot to pickup the core tube. The BHT measurements were run at approximately 50 feet intervals after temperatures reached 100 F. In general, the BHT measures can roughly mimic the natural temperature gradient. The BHT measurements are lower than actual temperature values of the formation. Spuriously high measurements from 2,400 to 2,600 feet are the result of bomb leakage and downhole pressure squeezing of the glass mercury thermometer. 33 (J'l 0 0 ;•' ~ •I ". •• ~ (J'l .... • • 0 0 • ON • • f"T1 0 ""DO -iO • I ",-.... -N CD •• (J'l ~O '-'" 0 •• • • VJ (Jl 0 0 • • • • • ,+:.. 0 a • 0 • ,+:.. (Jl 0 0 • • Figure 9. Surface mud temperature versus drilling depth. 34 8HT TEMPERATURE (F) 100 120 140 160 (Jl o o O' o o (Jl o o ON 1"Tl0 "1)0 -10 .. .. . . ... I . .. .. .... : . .. .. .. .. VJ o o o .. . .. VJ (Jl o o . .+;>. o o o .+;>. CJ1 o o Figure 10. .. .. .. .. . .. .. .. .. .. .. .... .. .. Subsurface bottom-hole mud temperature (BHT) versus drilling depth. 35 180 2.13 OBSERVATION WELL COMPLETION A total depth of 4,505 feet was reached on 29 August within a basalt intrusion in the Veso Formation. The drilling target, Precambrian basement was' not reached because a thicker than anticipated section of Tertiary sediments was encountered. The rigid tum key contract of the State of Arizona precluded drilling deeper. Within this framework, the well completion was changed to provide a contigency for re-entering the hole at a later time inorder to drill to Precambrian basement and perform detailed scientific studies (Appendix 7). Instead of a steel pipe liner, the hole was completed with the NQ drill rods after cutting the HQ rods and retrieving the HQ rods from 2,510 feet depth to the surface. The remaining 850 feet of HQ rods from 2,510 feet to 3,360 feet depth were left cemented in place to hold back the bad formation in that interval (Figure 11 and Table 9). The NQ rods were capped at the bottom and filled with water to allow formation temperature measurements. The completion will allow for later drilling to continue with a NQ drill string if the NO rods in the hole can be retrieved or with a BO drill string if the NO rods cannot be retrieved. A BO drill string may be inserted in the NQ rods and the bottom cap drilled-out for continued coring to Precambrian basement. 36 NQROD 2S10FEET HQJlOD 3369 fEET 4500 NQ ROD CAPPED AT 450S fEET (NOT SHOWN) Figure 11. Temporary observation well completion diagram. 37 Table 9 Alpine1/Federal temporary observation completion specifications. item well head flange conductor casing surface casing HQ hole HQ casing NQ hole NO casing 2.14 hole size top bottom inches ft ft 0 7.875 5.875 3.850 3.782 3.040 2.98 0 0 20 500 2,510 3,369 3,369 20 502 3,369 3,360 4,505 4,505 00 inches 10 inches weight cement Ibslft sacks 7.0625 6.625 4.5 5.796 3.875 24 11.6 5 44 3.5 3.0625 7.7 22 2.75 2.375 5.2 0 GEOPHYSICAL AND TEMPERATURE LOGGING The Alpine1/Federal borehole was geophysically logged several times after the well was completed as a temporary observation well. A suite of temperature logs was performed by the USGS, Geothermal Studies Project, Flagstaff, Arizona (Table 10). SWTDIINMSU contracted Southwest Geophysical Services, Farmington, New Mexico to perform an additional temperature log and neutron and gamma logs of the hole after the hole had mostly recovered from thermal disturbances of drilling. The USGS and Southwest Geophysical Services temperature logs were performed with wireline tools that were outfitted with thermister probes. A continuous logging rate of about 20 feet per minute was used with a sampling interval of 0.3 seconds or about 3 measurements per foot. Digital acquistion equipment was used to sample the wireline signal. Data output in the form of digital ASCII files allows subsequent analysis and interpretation. Prior to logging the thermister probes were placed in a ice-water bath to 38 check the ice-point calibration. Ice-point accracies were within 0.2 degrees Fahrenheit. Precision of the USGS system is in hundreths of a degree; while the Southwest Geophysical Services system is precise to a tenth of a degree. Table 10 Geophysical and temperature logs of the Alpine1 /Federal hole. type log date interval logged by ft temperature temperature temperature temperature temperature temperature gamma/neutron 8/31/93 9/7/93 9/17/93 9/30/93 10/21/93 10/22/93 10/21/93 0-4505 0-4505 0-4505 0-4505 0-4505 0-4505 0-4505 USGS/Sass USGS/Sass USGS/Sass USGS/Sass USGS/Sass Southwest Geophysical Southwest Geophysical The gamma and neutron logs were obtained on the same logging run by attaching both the gamma and neutron tools to the wireline. Normally, a caliper tool is also attached if logs are run in an open hole. Because the logs were run through the water-filled NQ rods, no caliper tool was used. Maximum sampling radius for the gamma and neutron logs is about 1 to 2 feet into the formation. A logging rate of 20 feet per minute is used. As with temperature logs, the wireline signal is digitally converted into ASCII files for analysis and interpretation. The gamma log measures gamma radiation from naturally occurring uranium, thorium, and potassium. Because different rock types have different radioactivity levels, the gamma log is a very useful lithology correlation tool. For instance, shales and clay have higher natural radioactivity than sandstone and sand. The neutron tool contains an active 39 radioactive source that emits neutrons and a detector that spaced on the tool about two feet from the neutron source. Neutrons emitted by the tool are principally slowed to low energies by hydrogen (i. e. water and hydrocarbons) in the formation, resulting in less signal for the detector if porosity is high. Where hydrogen content is low (low porosity) the neutrons diffuse much greater distances (closer to the detector) before slowing to low energies. Because of hydrogen sensitivity, the neutron log has use as an indicator of relative formation porosity. 2.15 SITE RESTORATION AND WELL ABANDONMENT Site cleanup of the Alpine 1/Federal borehole at the end of the temporary well completion consisted of removing all trash and equipment from the site, except for the well head and locked well head housing. Mud in the mud pit was removed and properly disposed at a designated USFS site. The pits were then covered and the substructure pad recontoured to conform with natural terrain. A nearby USFS cement pad was als9 covered and the overlying surface was smoothed. Fences and gates were replaced in order to return the site or original condition. When observation well studies are complete the well head will be removed and cement plugs will be placed at the surface and across the surface casing shoe. The well casing will be cut so that it may be covered below grade. Gravel that is providing a substrate for all-weather egress to the site from the logging road will be removed and all disturbed ground will be seeded. 40 3.0 REFERENCES Minier, J. and Reiter, M., 1991, Heat flow on the southem Colorado Plateau: Tectonophysics, v. 200, p. 51-66. Potter, R. M., Robinson, E. 5., and Smith, M. C., 1974, Method of extracting heat from dry geothermal reservoirs: U. S. Patent #3,786,858. Stone, 1980, Springerville-Alpine geothermal project, results of heat flow drilling: Arizona Bureau of Geology and Mineral Technology Open-File Report 79-17, 21 p. Tester, J. W., Brown, D. W., and Potter, 1989, Hot Dry Rock geothermal energy - a new energy agenda for the 21 st century: Los Alamos National Laboratory Report LA-11514-MS, 30 p. 41 APPENDIX 1 SUMMARY OF CANDIDATE DRill SITES 42 ALPINE DIVIDE Land Status Apache-Sitgreaves National Forest Attributes This site had the highest measured temperature gradient in the area. The subsurface geology was known to depth over 1,000 feet. Regional geologic relationships suggested that the cavernous Kaibab limestones may be missing below an unconformity at this site. Access to the site was very good as the site was immediately adjacent a paved highway. Drawbacks The site had high visibility. The U. S. Forest service did not allow disposal of drilling fluids on site. The site was located about 7 miles from water sources. Institutional Setting Permitting and approvals was required from the U. S. Forest Service, U. S. Bureau of Land Management, and the Arizona Geological Survey, Oil and Gas Administrator. Geothermal Potential Ranking This site ranked the highest in terms of geothermal potential. The. temperature of the Precambrian basement was highest at this location for two important reasons. First, the depth to Precambrian basement was greater and the sediments that act as thermal blankets had greater thickness. This translated into higher temperatures in the Precambrian. Second, the site was known to have the highest measured temperature gradients (71 C/km). 43 NUTRIOSO land Status Private/Escudilla Management Corporation Attributes Access to the site was good and mud pits were be allowed along with drill mud disposal. The site was adjacent to sources of water for drilling. Permitting was only required by the Arizona Geological Survey, Oil and Gas Administrator. Drilling depth to Precambrian basement was probably about 500 feet less than at Alpine Divide. Drawbacks The subsurface geology in the upper 500 feet, the surface casing shoe depth, was not known. It was not known if the land owner would indemnify project participants. The San Andres/Kaibab Formation, a cavernous limestone with potential for serious drilling problems, was more likely to be present at the Nutrioso site than at the Alpine Divide site. Institutional Setting Permits were required from the Arizona Geological Survey, Oil and· Gas Administrator. Geothermal Potential Ranking This site had less geothermal potential than the Alpine Divide site because of a thinner section of low thermal conductivity sediments than the site at Alpine Divide. Also, available information shows the site would have lower temperature gradients as well (see well DR-1 at Nutrioso in Stone (1980), temperature gradient is 51 °C/km). 44 APPENDIX 2 PARnCIPANTS AND SUPPLIERS IN THE ALPINE1/FEDERAL DRILLING PROJECT 45 U. S. DEPARTMENT OF ENERGY DOE REGIONAL OPERATIONS OFFICE/ALBUQUERQUE Niles Lackey-project manager Daniel Sanchez-progect manager STATE OF ARIZONA ARIZONA DEPARTMENT OF PROCUREMENT Robert E. Stephenson-administrator ARIZONA DEPARTMENT OF COMMERCE Jim Marsh-director ENERGY OFFICE Jack Haenichen-director Dr. Frank Mancini-program manager GEOTHERMAL EVALUATION COMMITTE Dr. Frank Mancini-chainnan/AZ Commerce Dept Energy Office Dr. Larry Fellows-state geologist/AZ Geological Survey Steven L. Rauzi-oil and gas administrator/AZ Geological Survey John Crawford-consultant John Hauskins-AZ Dept ot Transportation PRIME CONTRACTOR/DRILLING CONTRACTOR TONTO DRILLING SERVICES George Mclaren-president Larry Pisto-manager Core Division Ron Fierbach-supervisor Core Division Mike LaOrange-drill tonnan George Behunin-driller Dan Antonioli-driller Carl McCracken-driller Jim Thagard-helper James Powell-helper C. W. Roseberry-helper Tim Lambert-helper GEOTECHNICAL SUBCONTRACTOR SOUTHWEST TECHNOLOGY DEVELOPMENT INSTITUTE (SWTDI) NEW MEXICO STATE UNIVERSITY (NMSU) Dr. James Halligan-president NMSU Engineering College Dr. Darryl Morgan-dean NMSU/SWTDI Dr. Rudi Schoenmackers-director James C. Witcher-geologist/project manager H. Richard Hahman-co~$ultant/registered geologist Dr. Chandler A. Swanberg-geothennal consultant INVITED PARTICIPANT U. S. GEOLOGICAL SURVEY/GEOTHERMAL STUDIES PROJECT Dr. John Sass-geophysicist/director Fred Grubb-geophysicist Dr. Thomas Moses-geophysicist 46 PERMITS AND REGULATORS FEDERAL U. S. FOREST SERVICE/APACHE-SITGREAVES NATIONAL FOREST ALPINE DISTRICT Dean Berkey-district ranger Bob Dyson-district minerals manager Sandra Boone-archeologist Don Hoffman-assistant U. S. BUREAU OF LAND MANAGER/STATE OFFICE John Haas-engineer STATE ARIZONA GEOLOGICAL SURVEY Steven L. Rauzi-oil and gas administrator ARIZONA DEPARTMENT OF TRANSPORTATION ARIZONA DEPARTMENT OF WATER RESOURCES SUPPLIERS AND SERVICES WATER LUNA IRRIGATION DISTRICTILUNA, NM Phil Swapp-rancher Max Reynolds-rancher SITE SURVEY Lany K. Whitmer-registered surveyer/Alpine, AZ LODGING/CABINS M. J. scon COMPANY/ALPINE, AZ Millard Scott-owner WIRELINE GEOPHYSICAL SURVEYS SOUTHWEST GEOPHYSICAL SURVEYSIFARMINGTON, NM Don Pierson-president/geophysicist Mick Peterson-geophysicist DRILLING MUD SUMMIT DRILLING FLUIDSIDENVER, CO Keven Buchanan-engineerfTucson, AZ DRILL SITE PREPARATIONIDIRT WORK H2S MONITORING AND SAFETY EQUIPMENT TECTON GEOLOGIC/HEALDSBURG, CA BLOWOUT PREVENTION EQUIPMENT H & H OIL TOOL COMPANY PORTABLE TOILETS BURKS SANITATION/ALPINE-SPRINGERVILLE, AZ DRILL SITE TRASH PICKUP HUGHES REFUSE/ALPINE-SPRINGERVILLE, AZ CASING, SHOES, CENTRALIZERS, AND OTHER DRILLING SUPPLIES REPUBLIC STEEL HALIBURTON LONGYEAR 47 APPENDIX 3 CORE MARKING PROCEDURES FOR THE ALPINE1/FEDERAL DRILLING PROJECT 48 REMOVAL Of CORE fROM CORE BARREL Measurement of core When the core barrel was removed from the well, the amount of core in the core barrel was measured with a tape measure after the core was removed . from the core barrel. Placement of core in core tray Core was removed from the barrel and placed in the core tray. Care was taken to insure that: • All core pieces were in the proper sequence. • All core pieces were oriented in the same direction. • The top of the core sequence (core run) was indicated using a wooden block with the label "TOP". Washing core If the core needed to be washed, the core was washed in the core tray. A bucket of water and a stiff paint brush was used for core washing. 49 Marking core Any peices of core longer than one core width (about 3 inches) were marked with a grease pencil while the core was in the core tray. Individual pieces were marked as follows: • A downhole arrow pointing away from the ''TOP'' block. .. The core run number. .. The piece number (beginning with 1 for the top piece nearest the 'TOP" block and numbered sequentally to the last or bottom piece). • Core was labeled so that if the core needed to be broken for boxing or sampling, the break would not occur where the piece of core is labeled. In other words, labeling the run number and piece number at the ends of the core piece or over geologically important features such as mineralized veins or fossils was avoided. BOXING AND LABELING THE CORE Labeling core boxes Cardboard boxes were used to store core. One end of the core boxes was labeled. Minimum labeling included: • Well name (TONTO/ALPINE #1) • Core run number. • Beginning footage and ending footage. 50 Placing core in the core boxes The core was boxed so that the top of the run was in the upper left comer. . Figure A4 shows an example core placement in a core box. A run block (a wooden block wrapped with yellow or orange flagging) was placed in the core box in the upper left comer. The first piece of core from an individual run was placed behind the run block. The run block was labelled with a permanent marker (indelible ink) as follows: front o Well name (TONTO/ALPINE #1). back o Core run number, followed by ''TOP''. o Interval cored. o Amount cored. o Amount recovered. When it was necessary to break core for boxing or sampling, the break was marked and the pieces renumbered with alphabetically (Figure A4). o Core pieces were relabeled with alphabetical designations ("A" for the top piece). o o The two pieces of broken core were fitted back together. Two or three (3) diagonal parallel lines were placed across the break with a grease pencil or felt tip permanent marker. 51 fRUN BLOCK [ -------::=- :,..'.. J -.::..8_-..~ \I~ _ _..;:. .....:.5_ _..,..\\ _ _.;;:.. .. I f BLOCK INDICATING RUN ... AMOUNT LOST ENDING FOOTAGE ~,. ----- 1......_4 ._2_~_·i--- 1. BREAK CORE 2. 3. I 4.2A f 1 4·28 RENUMBER TH"'"E........ 1W-O-P-IE-CE-S--- f 4·2A 4·28 REJOIN THE lWO PIECES A.ftu 000' (1916) 52 An end block followed the last piece of core in the box. The end block was labeled with a permanent marker as follows. front • Core run number, followed by "END". • Missing core (Label with "M"). • Excess core (Label with "E"). • Ending footage. • side Ending footage. REFERENCE Goff,S., 1986, Curational policy guidelines and procedures for the Scientific Drilling Program: Los Alamos National Laboratory Report LA-10542-0BES, 23 p. 53 APPENDIX 4 CORING OPERAnONS LOG FOR THE ALPINE 1/FEDERAL BOREHOLE S4 c.n c.n RUN# BEGIN date/time END date/time DRILL TIME hrs:min TOP ft 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 7/13/8911:20 7/13/8912:10 7/13/8913:40 7/13/8915:10 7/13/8917:00 7/13/8919:50 7/13/8922:00 7/13/8923:33 7/14/890:40 7/14/89 1:45 7/14/892:45 7/14/893:45 7/14/895:25 7/14/898:35 7/14/899:35 7/14/8910:51 7/14/8912:04 7/14/8913:26 7/14/8914:30 7/14/8915:45 7/14/89 16:58 7/14/8918:10 7/14/89 19:25 7/14/8920:48 7/14/8922:15 7/14/8923:30 7/15/89 1:10 7/15/892:30 7/15/893:48 7/15/894:56 7/15/891:28 7/15/898:36 7/15/899:35 7/13/8911:50 7/13/8913:30 7/13/8915:00 7/13/8916:50 7/13/8918:30 7/13/8921:50 7/13/8923:08 7/14/890:23 7/14/89 1:42 7/14/892:42 7/14/893:41 7/14/894:45 7/14/896:30 7/14/899:28 7/14/8910:40 7/14/8911:46 7/14/8913:05 7/14/8914:15 7/14/8915:30 7/14/8916:45 7/14/89 17:51 7/14/8919:10 7/14/8920:35 7/14/8922:00 7/14/8923:15 7/15/890:53 7/15/892:20 7/15/893:31 7/15/894:44 7/15/895:46 7/15/898:22 1/15/899:15 1/15/8910:23 0:30 1:20 1:20 1:40 1:30 2:00 1:08 0:50 1:02 0:57 0:56 1:00 1:05 0:53 1:05 0:55 1:01 0:49 1:00 1:00 0:53 1:00 1:10 1:12 1:00 1:23 1:10 1:01 0:56 0:50 0:54 0:39 0:48 497.0 504.0 514.0 524.0 534.0 544.0 554.0 564.0 574.0 584.0 594.0 604.0 614.0 624.0 633.0 642.0 652.0 664.0 674.0 684.0 694.0 704.0 714.0 724.0 134.0 744.0 754.0 764.0 774.0 784.0 794.0 804.0 814.0 BOnOM CORED ft ft 504.0 514.0 524.0 534.0 544.0 554.0 564.0 574.0 584.0 594.0 604.0 614.0 624.0 633.0 642.0 652.0 664.0 674.0 684.0 694.0 704.0 714.0 724.0 734.0 144.0 754.0 764.0 774.0 784.0 794.0 804.0 814.0 824.0 7.0 10.3 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.2 10.0 10.0 10.0 10.0 12.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 RATE minlft RECOV'D ft BOX # 0:04 0:08 0:08 0:10 0:09 0:12 0:06 0:05 0:06 0:05 0:05 0:06 0:06 0:05 0:07 0:05 0:05 0:04 0:06 0:06 0:05 0:06 0:07 0:07 0:06 0:08 0:07 0:06 0:05 0:05 0:05 0:03 0:04 1.9 10.5 9.9 9.8 10.0 9.0 9.5 10.0 10.0 10.0 10.4 10.2 10.0 10.0 10.0 10.0 12.0 10.0 9.9 9.6 10.4 10.0 9.1 9.1 10.1 10.0 10.0 10.0 9.8 11.0 10.0 9.5 9.0 1 1/2 2/3 3/4 4/5 5/6 6n 7/8 9 10 11 12 13 14 15 16 17/18 18/19 19/20 20/21 21/22 22/23 23/24 24/25 25/26 27 28 29 30 31 32 33 34 RUN # ttl en 34 35 38 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 BEGIN date/time END date/time 7/15/89 10:30 7/15/89 11 :35 7/15/8911:45 7/15/8912:35 7/15/8912:37 7115/8913:35 7/15/8913:53 7/15/8915:10 7/15/8916:15 7/15/8917:55 7/15/8919:40 7115/8921:50 7/16/89 0:08 7116/891:56 7116/894:44 7116/895:35 7/16/896:24 7116/897:36 7/16/898:45 7/16/899:55 7116/8910:50 7116/8912:05 7116/8913:15 7116/8914:05 7/15/8914:49 7115/8916:00 7115/8917:45 7115/8919:31 7115/8921:22 7116/89 0:00 7116189 1:42 7/16/893:07 7116/89 5:20 7/16/896:08 7116/897:10 7116/89 8:08 7116/899:25 7116/89 10:32 7116/8911:50 7116/8912:45 7116/8913:50 7116/8915:12 7/16/8915:30 7116/8916:25 7116/89 16:35 1116/89 17:41 7/16/8918:03 7116/8918:40 7116/8919:05 7116/8919:45 7116/8920:00 1116/8920:30 7/16/8921:35 1116/8921:55 7/16/8922:00 7116/8922:25 1116/8922:30 7116/8923:02 7116/8923:25 1111/890:10 1111/890:25 1117/891:22 7111/891:35 7111/892:30 7/17/892:40 1117/89 3:45 DRILL TIME hrs:min TOP ft 1:05 0:50 0:58 0:56 0:50 1:30 1:36 1:42 2:10 1:34 1:11 0:36 0:33 0:46 0:32 0:40 0:37 1:00 0:40 0:35 1:07 0:55 1:12 0:37 0:40 0:30 0:20 0:25 0:32 0:45 0:51 0:55 1:05 824.0 834.0 844.0 854.0 864.0 874.0 884.0 894.0 904.0 914.0 924.0 934.0 939.0 944.0 954.0 964.0 972.0 982.0 992.0 1002.0 1012.5 1023.0 1033.0 1043.0 1053.0 1064.0 1069.6 1075.6 1084.0 1094.0 1104.0 1114.0 1124.0 BOTTOM CORED ft ft 834.0 844.0 854.0 864.0 874.0 884.0 894.0 904.0 914.0 924.0 934.0 939.0 944.0 954.0 964.0 972.0 982.0 992.0 1002.0 1012.5 1023.0 1033.0 1043.0 1053.0 1064.0 1069.6 1075.6 1084.0 1094.0 1104.0 1114.0 1124.0 1134.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 5.0 5.0 10.0 10.0 8.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 5.5 8.4 10.0 10.0 10.0 10.0 RATE mln/ft 0:06 0:05 0:05 0:05 0:05 0:09 0:09 0:10 0:13 0:09 0:07 0:07 0:06 0:04 0:03 0:05 0:03 0:06 0:04 0:03 0:06 0:05 0:07 0:03 0:03 0:05 0:03 0:02 0:03 0:04 0:05 0:05 0:06 RECOV'D It 10.4 10.0 9.1 10.0 10.0 10.2 10.0 9.9 10.2 10.1 10.0 2.3 8.1 9.5 8.0 9.8 10.5 9.9 10.6 10.4 10.5 10.3 10.4 10.4 10.4 5.6 6.0 8.4 10.1 10.2 10.1 10.0 10.3 BOX. 35/36 36/31 31/38 38/39 39/40 40/41 41/42 43/44 44/45 45/46 46/41 47/48 48 49/50 50/51 51/52 52153 53/54 54/55 55/56 58/51 57/58 58/59 59/60 60/61 62 63 64 65/66 66/67 67/68 68/69 69nO VI ......., RUN# BEGIN date/time END date/time DRILL TIME hrs:mln TOP ft 67 68 69 70 71 72 73 74 75 76 11 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 7/17/893:59 1/17/89 5:23 7/17/891:15 7/17/898:25 7/17/8912:07 7/17/89 13:26 7/17/8914:30 7/17/8915:38 7/17/89 16:58 7/17/8918:09 7/17/8919:16 7/17/8920:20 7/17/8921:38 7/17/8922:38 7/18/890:10 7/18/89 1:13 7/18/892:15 7/18/893:40 7/18/894:35 7/18/897:27 7/18/89 8:27 7/18/899:37 7/18/8910:50 7/18/8912:31 7/18/8914:08 7/18/8915:08 7/18/8916:30 7/18/8917:35 7/18/8919:10 7/18/8920:00 7/18/8921:28 7/18/8922:55 7/19/89 0:03 7/17/895:05 1/17/896:42 7/17/89 8:08 7/17/89 9:23 7/17/8913:07 7/17/8914:10 7/17/8915:17 7/17/8916:32 7/17/89 17:43 7/17/8918:59 7/17/8920:06 7/17/8921 :23 7/17/8922:20 7/17/8923:44 7/18/891:00 7/18/892:02 7/18/893:10 7/18/894:20 7/18/895:14 7/18/898:06 7/18/899:14 7/18/8910:24 7/18/8912:08 1/18/8913:45 7/18/8914:50 7/18/8916:16 7/18/8917:07 7/18/8918:19 7/18/8919:45 7/18/8921:13 7/18/8922:30 7/18/8923:41 7/19/890:35 1:06 1:19 0:53 0:58 1:00 0:44 0:47 0:54 0:45 0:50 0:50 1:03 0:42 1:06 0:50 0:49 0:55 0:40 0:39 0:39 0:47 0:47 1:18 1:14 0:42 1:08 0:37 0:44 0:35 1:13 1:02 0:46 0:32 1134.0 1144.0 1154.0 1164.0 1174.0 1184.0 1194.0 1204.0 1214.0 1224.0 1234.0 1244.0 1254.0 1264.0 1274.0 1284.0 1294.0 1304.0 1314.0 1324.0 1334.0 1344.0 1354.0 1364.0 1374.0 1384.0 1393.5 1404.0 1414.0 1424.0 1434.0 1444.0 1454.0 BOnOM CORED ft ft 1144.0 1154.0 1164.0 1174.0 1184.0 1194.0 1204.0 1214.0 1224.0 1234.0 1244.0 1254.0 1264.0 1274.0 1284.0 1294.0 1304.0 1314.0 1324.0 1334.0 1344.0 1354.0 1364.0 1314.0 1384.0 1393.5 1404.0 1414.0 1424.0 1434.0 1444.0 1454.0 1464.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 9.5 10.0 10.0 10.0 10.0 10.0 10.0 10.0 RATE minlft RECOV'D ft BOX' 0:06 0:01 0:05 0:05 0:06 0:04 0:04 0:05 0:04 0:05 0:05 0:06 0:04 0:06 0:05 0:04 0:05 0:04 0:03 0:03 0:04 0:04 0:07 0:07 0:04 0:07 0:03 0:04 0:03 0:07 0:06 0:04 0:03 9.8 10.2 9.9 10.1 9.4 10.2 10.0 9.9 10.0 10.1 10.3 10.0 10.1 9.6 10.3 10.3 9.1 8.9 10.8 10.0 10.2 10.2 10.0 10.4 9.3 10.1 10.5 10.0 10.5 9.4 10.4 10.3 10.1 10111 11112 72113 73114 74115 15116 16111 11118 79/80 80/81 81/82 82183 83/84 84/85 85/86 86/87 81/88 88/89 89/90 91/92 92193 93/94 94/95 95/96 96/97 97/98 99/100 100/101 101/102 1021103 103/104 104/105 105/106 U1 00 RUN# BEGIN date/time END date/time DRILL TIME hrs:mln TOP ft 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 7/19/890:55 7/19/891:56 7/19/894:50 7/19/896:30 7/19/891:37 7/19/892:45 7/19/894:12 7/19/89 6:08 7119/897:17 7/19/89 7:38 7/19/89 8:38 0:42 0:49 1:05 1:18 0:47 1:00 0:40 0:46 1:13 1:15 0:46 1:15 1:22 0:48 1:02 0:45 0:47 1:28 0:30 0:49 0:46 0:50 0:27 1:00 1:27 0:37 0:37 1:06 0:29 0:46 1:28 0:36 1:45 1464.0 1474.0 1481.6 1491.6 1502.0 1512.0 1522.5 1532.5 1543.0 1553.0 1563.0 1573.5 1583.5 1594.0 1604.0 1614.0 1624.0 1634.0 1641.0 1651.5 1661.5 1669.0 1679.0 1684.0 1694.0 1704.0 1713.0 1723.4 1731.2 1738.0 1748.0 1758.0 1768.0 7/19/893:07 7/19/899:00 7/19/89 9:40 7/19/8910:02 7/19/8910:48 7/19/8911:09 7119/8912:22 7/19/8912:45 7/19/8914:00 7/19/8914:26 7/19/8915:12 7/19/8915:40 7/19/8916:55 7/19/8917:13 7/19/8918:35 7119/8919:36 7/19/8920:24 7/19/8920:39 7/19/8921:41 7/19/89 22:03 7/19/8922:48 7/19/8923:10 7/19/8923:57 7/20/890:09 7/20/891:37 7/20/892:00 7/20/892:30 7/201893:28 7/20/894:17 7/20/894:41 7/20/895:27 7/20/89 9:00 7/20/89 9:50 7/20/8910:28 7/20/8910:55 7/20/89 11 :21 7/20/89 12:21 7/20/8923:18 7/21/89 0:45 7/21/89 1:09 7/21/891:46 7/21/892:10 7/21/89 2:47 7/21/893:10 7/21/89 4:16 7/21/895:18 7/21/89 5:47 7/21/896:15 7/21/89 7:01 7/21/89 8:25 7/21/89 9:53 7/21/8910:22 7/21/89 10:58 7/21/8911:25 7/21/8913:10 BOnOM CORED ft ft 1474.0 1481.6 1491.6 1502.0 1512.0 1522.5 1532.5 1543.0 1553.0 1563.0 1573.5 1583.5 1594.0 1604.0 1614.0 1624.0 1634.0 1641.0 1651.5 1661.5 1669.0 1679.0 1684.0 1694.0 1704.0 1713.0 1723.4 1731.2 1738.0 1748.0 1758.0 1768.0 1778.0 10.0 10.0 7.5 10.0 10.0 10.5 10.0 10.5 10.0 10.0 10.5 10.0 10.0 10.0 10.0 10.0 10.0 10.0 7.0 10.0 7.5 10.0 5.0 10.0 10.0 10.0 9.0 10.0 5.0 10.0 10.0 10.0 10.0 RATE mlnlft RECOV'D ft BOX' 0:04 0:06 0:06 0:07 0:04 0:05 0:04 0:04 0:07 0:07 0:04 0:07 0:07 0:04 0:06 0:04 0:04 0:12 0:02 0:04 0:06 0:05 0:05 0:06 0:08 0:04 0:03 0:08 0:04 0:04 0:08 0:03 0:10 10.0 7.4 10.0 10.4 10.4 10.5 10.5 10.2 10.2 10.3 10.3 10.3 10.0 9.4 10.0 9.6 10.3 7.0 10.5 9.7 8.7 7.5 7.5 9.8 10.1 9.0 10.1 7.5 7.3 10.0 10.0 10.0 9.5 106/107 107/108 108/109 1091110 110/111 111/112 1121113 114/115 115/116 1161117 117/118 118/119 1191119 119/120 1211122 1221123 123/124 124/125 125/126 1261127 1271128 128/129 129 129/130 1311132 1321133 1331134 134/135 135/136 1361137 137/138 138/139 1391140 RUN' CJ1 to 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 BEGIN date/time END date/time DRILL TIME hrs:min TOP ft 7/21/8913:26 7/21/8914:25 7/21/89 16:07 7/21/8918:19 7/21/8919:32 7/21/8921 :16 7/21/8923:15 7/221890:35 7/22189 1:25 7/21/8914:06 7/21/8915:45 7/21/89 17:52 7/21/8919:10 7/21/8920:52 7/21/8922:49 0:40 1:20 1:45 0:51 1:20 1:33 0:57 0:20 0:19 0:30 1:21 0:28 0:44 1:05 1:27 1:39 1:12 1:05 1:01 1:28 1:15 0:30 0:49 1:10 1:59 1:33 1:42 1:11 1:30 1:42 1:25 0:40 0:55 1778.0 1784.0 1794.0 1804.0 1814.0 1824.0 1834.0 1844.0 1849.0 1859.0 1869.0 1879.0 1884.0 1892.0 1902.0 1912.0 1922.5 1933.0 1943.0 1953.0 1963.0 1973.0 1982.0 1992.5 2002.5 2012.5 2022.5 2033.0 2043.5 2053.5 2064.0 2074.0 2084.0 7/22189 2:35 7/221893:29 7/221895:17 7/221896:14 7/22189 7:30 7/221899:03 7/2218910:55 7/2218913:00 7/2218914:50 7/22189 16:29 7/2218917:50 7/2218919:40 7/2218921:41 7/2218922:36 7/2218923:50 7/23/89 1:25 7/23/89 3:57 7/23/895:58 7/23/89 8:00 7/23/89 9:20 7/23/8911:18 7/23/89 13:35 7/23/8915:35 7/23/8916:39 7/221890:12 7/22189 0:55 7/22189 1:44 7/22189 3:05 7/221894:50 7/22189 5:45 7/221896:58 7/22189 8:35 7/22189 10:30 7/2218912:34 7/2218914:12 7/2218915:55 7/22189 17:30 7/2218919:18 7/2218920:55 7/2218922:11 7/2216923:25 7/23/89 1:00 7/23/89 3:24 7/23/895:30 7/23/697:40 7/23/899:11 7/23/8910:50 7/23/8913:00 7/23/89 15:00 7/23/8916:15 7/23/8917:34 BOTTOM CORED ft ft 1784.0 1794.0 1804.0 1814.0 1824.0 1834.0 1844.0 1849.0 1859.0 1869.0 1879.0 1884.0 1892.0 1902.0 1912.0 1922.5 1933.0 1943.0 1953.0 1963.0 1973.0 1982.0 1992.5 2002.5 2012.5 2022.5 2033.0 2043.5 2053.5 2004.0 2074.0 2084.0 2094.0 6.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 5.0 10.0 10.0 5.0 8.0 10.0 10.0 10.5 10.5 10.0 10.0 10.0 10.0 9.0 10.0 10.0 10.0 10.0 10.5 10.5 10.0 10.5 10.0 10.0 10.0 RATE minlft 0:06 0:08 0:10 0:05 0:08 0:09 0:05 0:04 0:01 0:03 0:08 0:05 0:05 0:06 0:08 0:09 0:06 0:06 0:06 0:08 0:07 0:03 0:04 0:07 0:11 0:09 0:09 0:06 0:09 0:09 0:08 0:04 0:05 RECOV'D ft 6,5 10.5 9.5 10.4 10.0 10.3 10.0 4.9 10.2 10.3 8.1 3.6 9.8 10.4 10.4 10.3 10.5 10.1 10.1 10.0 8.5 10.2 10.0 10.1 10.3 9.8 10.5 10.5 10.3 10.5 10.3 9.9 10.0 BOX # 140/141 141/142 1421143 143/144 144/145 145/146 146/147 1471148 1481149 1491150 150/151 151 151/152 1521153 1541155 155/158 158/157 1571158 158/159 1591160 160/161 1611162 1621163 163/164 1641165 166/167 1671168 1681169 1691170 1701171 171/172 1721173 173/174 RUN# en 0 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 188 187 188 189 190 191 192 193 194 195 196 197 198 BEGIN date/t/me END date/time DRill TIME hrs:min TOP ft 7/23/89 11:52 7/23/8919:45 7/23/8921:15 7/23/8923:11 7/24/890:40 7/24/892:18 7/24/894:33 7/24/898:10 7/24/898:10 7/24/8910:41 7/24/8912:33 7/24/89 18:20 7/24/8918:20 7/24/8920:18 7/24/8922:20 7/24/8923:40 7/25/892:41 7/25/893:51 7/25/89 5:28 7/25/89 8:32 7/25/899:15 7/25/8910:52 7/25/89 12:03 7/25/89 14:40 7/25/8918:38 7/25/8918:45 7/25/8921 :00 7/25/8922:39 7/28/89 1:00 7/28/89 2:11 7/26/89 3:51 7/26/895:15 7/26/896:30 7/23/89 19:19 7/23/8920:47 7/23/8922:46 7/24/890:12 7/24/89 1:48 7/24/894:05 7/24/89 5:43 7/24/89 7:37 7/24/8910:10 7/24/8912:00 7/24/8914:33 7/24/89 17:54 7/24/8919:50 7/24/8921:52 7/24/8923:12 7/25/89 1:23 7/25/89 3:23 7/25/89 5:00 7/25/89 5:58 7/25/897:18 7/25/89 10:20 7/25/8911:30 7/25/89 14:06 7/25/89 18:05 7/25/8917:15 7/25/8920:28 7/25/8922:10 7/28/89 0:29 7/28/891:37 7/28/89 3:12 7/26/894:47 7/26/896:02 7/26/897:30 1:27 1:02 1:31 1:01 1:08 1:49 1:10 1:27 2:00 1:19 2:00 1:34 1:30 1:34 0:52 1:43 0:42 1:09 0:32 0:48 1:05 0:38 2:03 1:25 0:37 1:41 1:10 1:50 0:37 1:01 0:58 0:47 1:00 2094.0 2104.0 2114.0 2124.0 2134.0 2144.0 2154.0 2184.0 2174.0 2184.0 2194.0 2204.0 2214.0 2224.0 2234.0 2244.0 2254.0 2284.0 2274.0 2284.0 2294.0 2304.0 2314.0 2324.0 2334.0 2344.0 2354.0 2384.0 2374.0 2384.0 2394.0 2404.0 2414.0 BOnOM CORED ft ft 2104.0 2114.0 2124.0 2134.0 2144.0 2154.0 2184.0 2114.0 2184.0 2194.0 2204.0 2214.0 2224.0 2234.0 2244.0 2254.0 2284.0 2274.0 2284.0 2294.0 2304.0 2314.0 2324.0 2334.0 2344.0 2354.0 2384.0 2374.0 . 2384.0 2394.0 2404.0 2414.0 2424.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 RATE RECOV'D BOX # m/nlft 0:08 0:08 0:09 0:06 0:06 0:10 0:07 0:08 0:12 0:07 0:12 0:09 0:09 0:09 0:05 0:10 0:04 0:06 0:03 0:04 0:06 0:03 0:12 0:08 0:03 0:10 0:07 0:11 0:03 0:06 0:05 0:04 0:06 ft 10.1 10.0 10.0 9.9 9.8 9.0 9.9 10.3 10.0 10.0 10.3 10.0 10.0 10.1 10.2 10.4 10.1 10.4 10.0 10.1 10.2 10.1 10.1 10.1 10.2 10.0 9.9 10.2 10.1 10.0 10.1 9.9 10.2 114/175 175/178 178/177 177/178 1791180 1801181 181/182 1821183 183/184 184/185 1851188 188/187 187/188 188/189 1891190 1911192 1921193 193/194 194/195 1951196 196/197 197/198 198/199 199/200 200/201 201/202 2021203 204 205/206 206/207 207/208 208/209 209/210 ' . RUN# en -.I 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 221 228 229 230 231 BEGIN date/time END date/tlme DRILL TIME hrs:min 7/26/898:23 7/26/899:45 7/26/8911:34 7/26/8913:07 7/26/89 14:22 7/26/89 17:08 7/26/8918:25 7/26/8920:07 7/26/89 22:50 7/27/890:46 7/27/893:00 7/27/894:08 7/27/895:28 7/27/8910:22 7/27/8911:42 7/27/8913:40 7/27/8915:10 7/27/89 16:52 7/27/8918:39 7/27/8921:15 7/27/8922:07 7/28/890:04 7/28/89 1:28 7/28/893:23 7/28/89 5:17 7/28/89 7:32 7/28/899:36 7/28/8911 :20 7/28/8912:50 7/28/89 14:43 1/28/8916:35 7/28/89 18:12 7/26/89 9:16 7/26/89 10:55 7/26/8912:37 7/26/8913:52 7/26/8915:55 7/26/8917:46 7/26/8919:25 7/26/8921:54 7/27/890:15 7/27/892:31 7/27/893:33 7/27/89 5:00 7/27/89 5:55 7/27/8911:08 7/27/8913:06 7/27/8914:37 7/27/8916:20 7/27/8917:58 7/27/8920:34 7/27/8921:38 7/27/8923:28 7/28/890:51 1/28/892:52 7/28/894:33 7/28/896:35 7/28/898:56 1/28/8910:43 7/28/8912:14 1/28/8914:08 1/28/89 15:45 7/28/8917:32 7/28/8919:48 0:53 1:10 1:03 0:45 1:33 0:38 1:00 1:47 1:25 1:45 0:33 0:52 0:27 0:46 1:24 0:57 1:10 1:06 1:55 0:23 1:21 0:53 1:24 1:10 1:18 1:24 1:01 0:54 1:18 1:02 0:51 1:36 1:56 7/28/8920:18 1128/8922:14 TOP ft 2424.0 2434.0 2444.0 2454.0 2464.0 2474.0 2484.0 2494.0 2501.0 2509.5 2520.0 2530.0 2540.0 2544.0 2549.5 2560.0 2570.0 2580.0 2590.5 2601.0 2604.0 2614.0 2622.0 2632.0 2642.0 2652.5 2663.0 2673.0 2683.5 2694.0 2704.0 2714.0 2724.0 BOTTOM CORED ft 2434.0 2444.0 2454.0 2464.0 2474.0 2484.0 2494.0 2501.0 2509.5 2520.0 2530.0 2540.0 2544.0 2549.5 2560.0 2570.0 2580.0 2590.5 2601.0 2604.0 2614.0 2622.0 2632.0 2642.0 2652.5 2663.0 2613.0 2683.5 2694.0 2104.0 2114.0 2124.0 2134.0 ft 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.5 10.0 10.0 4.0 5.5 10.5 10.0 10.0 10.5 10.5 3.0 10.0 8.0 10.0 10.0 10.0 10.5 10.0 10.5 10.5 10.0 10.0 10.0 10.0 RATE mlnlft RECOV'D ft BOX # 0:05 0:07 0:06 0:04 0:09 0:03 0:06 0:15 0:10 0:10 0:03 0:05 0:06 0:08 0:08 0:05 0:07 0:06 0:10 0:01 0:08 0:06 0:08 0:01 0:01 0:08 0:06 0:05 0:07 0:06 0:05 0:09 0:11 10.1 10.0 9.6 10.0 10.3 10.3 7.1 8.3 10.3 10.3 10.0 10.4 4.0 5.5 10.5 10.2 10.3 10.4 4.5 8.3 8.5 9.6 10.4 10.4 10.2 10.5 10.3 10.5 10.5 10.2 9.4 10.4 10.3 210/211 211/212 212/213 214/215 215/216 216/217 217/218 218 218/219 219/220 221/222 222/223 223 223/224 224/225 225/226 226/227 227/228 228 228/229 230/232 232 233/234 234/235 235/236 236/231 237/238 238/239 240/241 241/242 242/243 243/244 2441245 ', RUN# m N 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 258 257 258 259 260 261 262 263 264 BEGIN dateltime END dateltlme DRILL TIME hrs:min TOP ft 7/28/8922:54 7/29/890:38 7/29/892:28 7/29/89 3:54 7/29/89 7:08 7/29/89 10:37 7/29/8912:23 7/29/8919:45 7/29/8921 :05 7/29/8923:01 7/30/89 1:45 7/30/89 4:03 7/30/896:25 7/30/89 9:39 7/30/89 12:30 7/30/8915:08 7/30/89 17:35 7/30/8920:15 7/30/89 22:40 7/31/890:48 7/31/8911:15 7/31/8914:15 7/31/8919:20 7/31/8921:05 7/31/8923:48 8/1/894:13 811/898:30 811/89 14:52 8/1/8919:10 7/29/89 0:07 7/29/891:56 7/29/89 3:34 7/29/896:13 7/29/89 8:21 7/29/89 11 :47 7/29/8914:33 7/29/8920:26 7/29/8922:27 7/30/890:40 7/30/89 3:28 7/30/89 5:40 7/30/898:50 7/30/89 11 :52 7/30/89 14:25 7/30/8917:01 7/30/8919:37 7/30/8922:02 8/2/890:06 8/2/895:25 8/2/8915:10 8/3/893:58 8/2/894:30 1:13 1:18 1:06 2:19 1:13 1:10 2:10 0:41 1:22 1:39 1:43 1:37 2:25 2:13 1:55 1:53 2:02 1:47 1:32 1:40 2:00 4:05 0:50 1:26 3:38 3:22 5:00 1:36 4:08 4:24 6:35 5:48 2:32 2734.0 2744.0 2754.0 2764.0 2774.0 2779.0 2784.0 2795.5 2802.0 2810.5 2820.5 2831.0 2841.0 2851.0 2862.0 2872.0 2882.5 2892.5 2902.0 2912.0 2922.0 2934.0 2946.0 2949.0 2956.0 2966.0 2976.0 2996.0 3006.0 3016.0 3026.0 3046.0 3054.0 7/31/890:12 7/31/89 2:28 7/31/8913:15 7/31/8918:20 7/31/8920:10 7/31/8922:31 8/1/893:26 811/897:35 811/8913:30 8/1/8916:28 8/1/8923:18 8/2/890:00 8/2/89 20:58 8/31896:30 BOnOM CORED ft ft 2744.0 2754.0 2764.0 2774.0 2779.0 2784.0 2795.5 2802.0 2810.5 2820.5 2831.0 2841.0 2851.0 2862.0 2872.0 2882.5 2892.5 2902.0 2912.0 2922.0 2934.0 2946.0 2949.0 2956.0 2966.0 2976.0 2996.0 3006.0 3016.0 3026.0 3046.0 3054.0 3062.0 10.0 10.0 10.0 10.0 5.0 5.0 11.5 6.5 8.5 10.0 10.0 10.0 10.5 10.5 10.0 10.5 10.0 9.5 10.0 10.0 12.0 12.0 3.0 7.0 10.0 10.0 20.0 10.0 10.0 10.0 20.0 8.0 8.0 RATE mlnlft 0:07 0:07 0:06 0:13 0:14 0:14 0:11 0:06 0:09 0:09 0:09 0:09 0:14 0:23 0:11 0:10 0:12 0:11 0:09 0:10 0:10 0:20 0:16 0:12 0:21 0:20 0:15 0:09 0:24 0:26 0:55 0:43 0:19 RECOV'D ft 10.2 9.8 10.6 4.9 4.0 9.5 7.5 6.4 9.0 10.4 10.2 10.3 10.5 10.5 10.5 10.4 9.3 10.0 10.2 10.6 10.0 0.0 13.0 2.3 11.5 14.0 17.0 13.0 8.5 11.7 17.0 8.2 8.2 BOX # 245/246 246/247 247/248 248/249 249/250 250 250/251 251/252 252/253 253/254 254/255 255/256 256/257 257/258 259/260 260/261 261/262 262/263 263/264 264/265 265/266 266 266/267 267/268 268/269 269/270/271 271/272 272/273/274 274/275 275/276 276/277/278 278/279 279/280 en (JJ RUN# BEGIN date/time END date/time DRILL TIME hrs:min TOP ft 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 8/3/897:20 8/3/89 15:33 8/4/892:47 8/4/896:25 8/4/89 12:05 814189 13:52 8/4/89 19:21 8151893:05 8151896:09 81518912:00 81618913:20 816/89 18:38 8/3/89 14:00 8/4/891:44 8/4/895:37 8/4/89 10:50 8/4/8913:10 8/4/8918:23 8/51892:03 815/895:24 815189 11 :10 815189 17:35 8/618917:46 8n189 0:41 8n1691:27 8n/899:15 8n/8915:35 8n/8919:22 8n/898:00 8n/8914:23 8n18918:30 8n18923:30 8/8/897:15 6:40 10:11 2:50 4:25 1:05 4:31 6:42 2:19 5:01 5:35 4:26 6:03 6:33 5:08 2:55 4:08 6:42 4:57 2:30 6:12 4:54 7:19 1:00 2:44 1:55 1:30 1:59 2:11 1:29 2:22 3:29 1:30 1:00 3062.0 3077.0 3096.0 3102.0 3114.0 3116.0 3134.0 3155.0 3166.0 3187.0 3207.0 3216.5 3236.0 3256.0 3276.0 3296.0 3308.0 3326.0 3337.0 3338.0 3345.0 3352.0 3369.0 3372.0 3382.0 3392.0 3399.0 3409.0 3419.0 3429.0 3439.0 3449.0 3459.0 8/81890:33 8181898:53 81918919:15 8110/898:03 811018914:30 811 0189 23:08 8115/8912:30 8/15/8916:35 8/15/8920:15 8/15/89 22:45 8116/890:51 8116189 3:27 81161896:13 8/16/898:00 8116/8911:51 818189 13:50 8/9/89 21 :45 8/1018914:15 811018919:24 81111896:27 8/15/8913:30 8/1518919:19 8/15/8922:10 8/16/890:15 8/16/89 2:50 81161895:38 81161897:42 8/16/89 10:22 811618915:20 8116/8917:10 8/1618918:40 8/16/8920:40 8/16/8921:40 BOTTOM CORED ft ft 3077.0 3096.0 3102.0 3114.0 3116.0 3134.0 3155.0 3166.0 3187.0 3207.0 3216.5 3236.0 3256.0 3276.0 3296.0 3308.0 3326.0 3337.0 3338.0 3345.0 3352.0 3369.0 3372.0 3382.0 3392.0 3399.0 3409.0 3419.0 3429.0 3439.0 3449.0 3459.0 3465.0 15.0 19.0 6.0 12.0 2.0 18.0 21.0 11.0 21.0 20.0 10.0 20.0 20.0 20.0 20.0 12.0 18.0 11.0 1.0 7.0 7.0 17.0 3.0 10.0 10.0 7.0 10.0 10.0 10.0 10.0 10.0 10.0 6.0 RATE minlft RECOV'D ft BOX # 0:26 0:32 0:28 0:22 0:32 0:15 0:19 0:12 0:14 0:16 0:28 0:18 0:19 0:15 0:08 0:20 0:22 0:27 2:30 0:53 0:42 0:25 0:20 0:16 0:11 0:12 0:11 0:13 0:08 0:14 0:20 0:09 0:10 15.0 13.8 0.0 11.0 11.0 20.2 15.8 16.1 20.0 19.6 10.2 20.0 20.0 20.0 20.0 11.9 18.0 11.0 1.0 7.0 7.0 14.3 2.0 10.0 10.0 7.0 10.0 10.0 •10.0 10.0 10.0 10.2 6.8 280/281/282 2821283 283 283/284 2841285 285/2861287 2871288/289 28912901291 291/2921293 293/294/295 295/296 296/29712981 29913001301 301/3021303 30313041305 3051306 3061307/308 3081309 309 3091310 3101311 311/312 312 312/3131314 314/315 3151316 316 316/317 3171318 318/319 319/320 3201321 321/322 ' , RUN# a> ~ 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 BEGIN date/time END date/time DRILL TIME hrs:min TOP 8/16/8923:10 8/17/8910:26 8/17/8913:15 8/17/8916:12 8/17/8918:40 8/17/89 23:45 8/18/89 2:53 8/18/89 10:08 8/18/8912:40 8/18/8915:17 8/18/89 18:00 8/18/89 21 :11 8/18/89 23:40 8/19/89 2:29 8/19/89 5:25 8/19/89 8:05 8/19/89 11:15 8/19/8914:12 8/19/89 17:45 8/19/89 22:24 8/20/89 2:06 8/20/89 4:51 8/20/89 7:45 8/20/8911:15 8/20/8915:07 8/20/8918:26 8/21/891:24 8/21/89 4:09 8/21/89 7:04 8/21/8910:55 8/21/8915:10 8/22189 0:33 8/22189 3:29 8/17/89 0:22 8/17/8912:27 8/17/8914:47 8/17/8917:54 8/17/8920:15 8/18/890:40 8/18/89 4:00 8/18/89 11 :40 8/18/8914:20 8/18/8917:14 8/18/89 20:24 8/18/89 22:58 8/19/89 1:38 8/19/89 4:42 8/19/897:15 8/19/89 10:20 8/19/89 13:23 8/19/8916:52 8/19/89 21 :21 8/20/89 1:12 8/20/89 4:04 8/20/89 6:43 8/20/89 10:10 8/20/8914:10 8/20/8917:39 8/20/8921:02 8/21/89 3:25 8/21/896:20 8/21/89 10:00 8/21/8913:24 8/21/8917:40 8/22189 1:05 8/22189 5:35 1:12 2:01 1:32 1:42 1:35 0:55 1:07 1:32 1:40 1:57 2:24 1:47 1:58 2:13 1:50 2:15 2:08 2:40 3:36 2:48 1:58 1:52 2:25 2:55 2:32 2:36 2:01 2:11 2:56 2:29 2:30 0:32 2:06 3465.0 3475.0 3485.0 3495.0 3505.0 3515.0 3525.0 3535.0 3545.0 3555.0 3565.0 3575.0 3585.0 3595.0 3605.0 3615.0 3625.0 3635.0 3645.0 3655.0 3665.0 3675.0 3685.0 3695.0 3705.0 3715.0 3725.0 3735.0 3745.0 3755.0 3765.0 3775.0 3777.0 ft BOTTOM CORED ft ft 3475.0 3485.0 3495.0 3505.0 3515.0 3525.0 3535.0 3545.0 3555.0 3565.0 3575.0 3585.0 3595.0 3605.0 3615.0 3625.0 3635.0 3645.0 3655.0 3665.0 3675.0 3685.0 3695.0 3705.0 3715.0 3725.0 3735.0 3745.0 3755.0 3765.0 3775.0 3777.0 3785.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.2 10.0 2.0 8.0 RATE minlft 0:07 0:12 0:09 0:10 0:09 0:05 0:06 0:09 0:10 0:11 0:14 0:10 0:11 0:13 0:11 0:13 0:12 0:16 0:21 0:16 0:11 0:11 0:14 0:17 0:15 0:15 0:12 0:13 0:17 0:14 0:15 0:16 0:15 RECOV'D ft 10.0. 10.0 10.0 10.2 10.0 9.9 9.8 10.1 9.8 10.0 10.0 10.0 10.1 10.2 10.2 9.9 10.2 9.5 10.0 10.2 10.1 10.2 10.0 10.0 10.1 10.0 10.0 10.1 10.2 10.2 0.0 3.7 7.2 BOX' 322/323 323/324 324/325 325/326 326/327 327/328 329 330/331 331/332 332/333 333/334 334/335 335/336 336/337 337/338 338/339 339/340 340/341 341/342 342/343 344/345 345/346 3461347 347/348 348/349 349/350 350/351 351/352 3521353 353/354 355 355 355/356 RUN# en til 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 BEGIN date/time END date/tlme 8/22/89 6:25 8/22/898:15 8/22/89 9:15 8/22/8910:57 8/22/89 11 :54 8/22/89 14:23 8/22/89 15:50 8/22/89 17:26 8/2218918:10 8/22/8919:35 8/22/8921 :12 8/22/8922:22 8/22/8923:02 8/23/89 0:00 8/23/89 0:49 8/23/89 1:46 8/23/89 2:28 8/23/89 3:34 8/23/894:14 8/23/896:15 8/23/89 7:45 8/23/89 9:54 8/23/8912:17 8/23/8914:37 8/23/8916:35 8/23/89 18:34 8/23/89 20:32 8/23/89 22:35 8/24/89 0:45 8/24/89 2:43 8/24/89 4:47 8/24/89 6:46 8/24/89 8:53 8/24/8910:53 8/24/8913:05 8/24/8915:08 8/24/89 17:45 8/24/89 20:25 81?4/89 22:35 8/25/89 0:45 8/25/89 2:46 8/25/894:49 8/23/89 5:28 8/23/897:10 8/23/89 8:58 8/23/89 11 :20 8/23/8913:48 8/23/8915:42 8/23/8917:46 8/23/89 19:37 8/23/89 21 :50 8/23/89 23:57 8/24/89 2:00 8/24/89 4:09 8/24/89 5:47 8/24/89 7:59 8/24/89 10:00 8/24/8912:13 8/24/8914:17 8/24/8916:35 8/24/89 19:45 8/24/89 21 :43 8/25/89 0:02 8/25/89 2:07 8/25/89 3:54 8/25/89 5:59 DRill TIME hrs:min TOP ft 1:50 1:42 2:29 1:36 1:25 1:10 0:58 0:57 1:06 1:14 0:55 1:13 1:26 1:31 1:05 1:11 1:03 1:18 1:22 1:15 1:26 1:00 1:13 1:07 1:20 1:12 1:27 2:00 1:18 1:27 1:22 1:08 1:10 3785.0 3795.0 3805.0 3815.0 3825.0 3835.0 3845.0 3855.0 3865.0 3875.0 3885.0 3895.0 3905.0 3915.0 3925.0 3935.0 3945.0 3955.0 3965.0 3975.0 3985.0 3995.0 4005.0 4015.0 4025.0 4035.0 4045.0 4055.0 4065.0 4075.0 4085.0 4095.0 4105.0 BOnOM CORED ft ft 3795.0 3805.0 3815.0 3825.0 3835.0 3845.0 3855.0 3865.0 3875.0 3885.0 3895.0 3905.0 3915.0 3925.0 3935.0 3945.0 3955.0 3965.0 3975.0 3985.0 3995.0 4005.0 4015.0 4025.0 4035.0 4045.0 4055.0 4065.0 4075.0 4085.0 4095.0 4105.0 4115.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 RATE mln/ft RECOV'D ft BOX' 0:11 0:10 0:14 0:09 0:08 0:07 0:05 0:05 0:06 0:07 0:05 0:07 0:08 0:09 0:06 0:07 0:06 0:07 0:08 0:07 0:08 0:06 0:07 0:06 0:08 0:07 0:08 0:12 0:07 0:08 0:08 0:06 0:07 9.0 10.0 10.0 10.1 10.0 10.0 10.3 10.0 10.0 10.2 10.0 10.0 10.0 10.1 10.1 10.0 10.0 10.0 10.1 10.2 9.9 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 9.9 10.1 9.9 10.1 356/357 357/358 358/359 359/360 360/361 361/362 362/363 363/364 364/365 365/366 367/368 368/369 369/370 370/371 371/372 372/373 373/374 374/375 375/376 376/377 377/378 378/379 379/380 380/381 381/382 383/384 384/385 385/386 386/387 387/388 388/389 389/390 390/391 , . 4' 0) 0) RUN# BEGIN date/time END date/tlme DRILL TIME hrs:min TOP ft 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 8/25/89 6:50 8/25/89 9:00 8/25/89 8:05 1:15 1:18 1:29 1:31 1:08 1:12 1:06 1:22 1:23 1:13 1:10 1:28 1:15 1:25 1:45 2:35 2:22 1:48 1:23 1:24 2:00 1:59 1:55 1:24 1:33 1:43 1:47 1:35 1:27 1:32 1:28 1:30 1:31 4115.0 4125.0 4135.0 4145.0 4155.0 4165.0 4175.0 4185.0 4195.0 4205.0 4215.0 4225.0 4235.0 4245.0 4125.0 4135.0 4145.0 4155.0 4165.0 4175.0 4185.0 4195.0 4205.0 4215.0 4225.0 4235.0 4245.0 4255.0 4255.0 4264.0 4264.0 4274.0 4284.0 4294.0 4304.0 4314.0 4324.5 4335.0 4345.0 4355.0 4365.0 4375.0 4385.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 9.0 10.0 10.0 10.0 10.0 10.0 10.5 10.5 10.0 10.0 10.0 10.0 10.0 4395.0 10.0 0:15 0:14 0:10 0:08 0:08 0:11 0:11 0:11 0:08 0:09 0:10 0:10 0:09 4405.0 10.0 0:08 4405.0 4415.0 10.0 4415.0 4425.0 4435.0 4425.0 10.0 10.0 10.0 0:09 0:08 0:09 0:09 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 8/25/8910:18 8/25/8912:08 8/25/8913:37 8/25/8915:29 8/25/8917:00 tJ/25/8918:02 8/25/8919:10 8/25/89 19:50 8/25/89 21 :02 8/25/89 21 :45 8/25/89 22:51 8/25/89 23:35 8/26/89 0:57 8/26/891:40 8/26/89 3:59 8126/895:59 8/26/89 3:03 8/26/895:12 8/26/89 7:09 B126/89 B:05 8126/89 9:33 8126/8910:30 8/26/8911:45 8/26/8912:35 8/26/8914:00 8/26/8915:03 8/26/8916:48 8/26/89 17:58 8/26/89 20:33 8/26/89 21 :23 8/27/890:27 8/27/89 3:06 8/27/89 5:20 8/27/897:30 8/27/8910:23 8/27/8913:17 8/27/8915:58 8/27/89 18:37 8/27/8920:57 8/26/89 23:45 8/27/892:15 8/27/894:29 8/27/896:44 8/27/89 9:30 8/27/8912:22 8/27/8915:12 8/27/8917:22 8/27/8920:10 8/27/8922:40 81~7189 23:20 8/28/89 1:07 8/28/89 1:44 8/28/893:19 8/28/89 4:05 8/28/89 5:32 8/28/89 6:28 8/28/89 8:00 8/28/89 8:50 8/28/8910:18 8/28/8911:14 8/28/8912:44 8/28/8913:36 8/28/8915:07 4274.0 4284.0 4294.0 4304.0 4314.0 4324.5 4335.0 4345.0 4355.0 4365.0 4375.0 4385.0 4395.0 BOnOM CORED ft ft 4435.0 4445.0 RATE mlnlft RECOV'D ft BOX' 0:07 0:07 0:08 0:09 0:06 0:07 0:06 0:08 0:08 0:07 0:07 0:08 0:07 0:08 10.1 10.1 9.8 10.2 10.0 10.0 10.0 9.9 10.2 10.1 10.0 10.2 10.0 10.1 9.0 10.3 9.9 10.0 10.0 10.1 10.5 10.5 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 391/392 392/393 0:11 :~. 3931394 394/395 395/396 396/397 397 399/400 400/401 401/402 4021403 4031404 404/405 405/406 406/407 407/408 408/409 409/410 410/411 411/412 412/413 413/414 414/415 415/416 416/411 4181419 419/420 4201421 421/422 422/423 423/424 424/425 425/426 ' , RUN# 0'> "'-J 397 398 399 400 401 402 BEGIN dateltlme END date/time 8/28/8915:53 8/28/8917:45 8/28/89 18:51 8/28/8920:55 8/28/89 21 :40 8/28/89 23:30 8/29/89 0: 15 8/29/89 2:02 8/29/89 2:40 8/29/894:13 8/29/89 4:58 8/29/89 6:34 DRILL TIME hrs:mln TOP ft 1:52 2:04 1:50 1:47 1:33 1:36 4445.0 4455.0 4465.0 4475.0 4485.0 4495.0 BOTTOM CORED ft ft 4455.0 4485.0 4475.0 4485.0 4495.0 4505.0 10.0 10.0 10.0 10.0 10.0 10.0 RATE mlnlft RECOV'D ft BOX # 0:11 0:12 0:11 0:10 0:09 0:09 10.0 10.0 10.0 10.1 10.0 10.3 427/428 428/429 429/430 430/431 431/432 4321433 APPENDIX 5 SUMMARY WELL HISTORY OF THE ALPINE 1/FEDERAL BOREHOLE 68 7/1/93 Drilling equipment, rig, and supplies mobilizing from Tonto Drilling yard in Salt Lake City. Drill rig moved on to the Alpine Divide site (1500 hrs), begin rigging-up (1500-1900 hrs). USFS, USBLM, and AZGS officials alerted. 7/2193 Supply trucks arrive at site entrance (0900 hrs). Truck with mud tanks and substructure refuse to make sharp tum off highway on to the logging road access to drill site. Mud tanks and substructure unloaded at sawmill in Nutrioso. Backhoe, parts trailor, and crane arrive on site (1130 hrs). Drill pad constructed and mud tanks dug. Water tank from Farmington arrives (1645 hrs). 7/3/93 Rigging-up continues (0700-1900 hrs). Tonto crane breaks down, unable to move substructure onto site. Unable to find mechanic for crane or a replacement crane due to 4th of July holiday weekend. John Hass (USBLM) and Bob Dyson (USFS) visit site (1649 hrs). 7/4/93 No activity. 7/5/93 Rigging-up continues (0700-1330 hrs). Rental crane acquired. 7/6/93 Rigging-up continues (0700-1900 hrs). Substructure and last of equipment arrive on site (1100 hrs). 69 7n/93 Continue ngglng-up (0700-1200 hrs). Nipple-up mud tanks, mix mud, transfer mud from mixing tank to mud tank, rack casing and drill pipe, makeup drill string. Spud hole with 7 7/8 inch tricone (1200 hrs). Complete drilling 20 feet (1240 hrs). Rig hydraulics malfunction (1245 hrs). WOP (1245-2400 , hrs). 7/8/93 WOP (0000-0600 hrs). Repair hydraulics and perform rig maintenance' (0600-0708 hrs). Run surface casing and begin mixing cement (0738 hrs). Cementing conductor casing with good returns (0752-0802 hrs), WOC (0802-1600 hrs). Tag cement (1613 hrs), drill-out cement (1650 hrs). Rotary with 5 7/8 inch tricone bit from 20 to 193 feet (1650-2400 hrs). Samples collected at 10 feet intervals. 7/9/93 Rotary 5 7/8 inch tricone from 193 to 465 feet (0000-2400 hours. Samples collected at 10 feet intervals. Trip-out, change bit, trip-in (0154-0345 hrs). John Sass (USGS), Tom Moses (USGS), and Frank Grubb (USGS) on location (0800-0925 hrs). Frank Mancini (AZDC) and Jack Haenichen (AZDC) on location (0823-0920 hrs). Maintenance on rig hydraulics(15001600 hrs). 7/10/93 Rotary 5 7/8 inch tricone from 465 to 502 (0000-0730 hrs). Condition hole and trip-out (0730-0830 hrs). Run 500 feet of surface casing with centralizers (0830-1230 hrs). Circulate and flush mud from hole (1230-1330 hrs). Begin mixing cement, nipple-up cement head (1330-1500 hrs). Pump cement (1525 hrs) and drop plug and displace cement (1530 hrs). Plug fails to drop and cement job fails (1540 hrs). Adjust cement head and plug, begin to mix second batch of cement (1625 hrs), pump cement (1651 hrs). Drop plug and displace cement (1700 hrs), good cement returns (1710 hrs). Cement job witnessed by John Hass (USBLM) and Steve Rauzi (AZGS). WOC (1710-0000 hrs). 70 7/11/93 WOC (0000-2300 hrs). Nipple-up and test BOP (0700-2300 hrs). Rig maintenance and repair hydraulics (2330-2400 hrs) Complete nipple-up of double gate (1330 hrs). Successful test of manifold valves on blooie line to . 1000 psi (1626 hrs). Successful test of choke valve to 1000 psi (1639 hrs). Pipe ram and blind ram successfully tested to 1000 psi (1645 hrs). H & H hotshot arrives from Farmington with BOP bolts for the annular BOP flange. Nipple-up annular (1845 hrs). Test annular to 1000 psi, leaking at flange (1858 hrs). Tighten BOP bolts, retest 1000 psi, still leaking (1918 hrs). Replace flange, retest to 1000 psi, still leaking (1216 hrs). Tighten BOP bolts and retest. Sucessful annular BOP test to 1000 psi (2216 hrs). All BOP tests witnessed by John Haas (USBLM) and Steve Rauzi (AZGS). Make-up and run drill string with 3 7/8 inch tricone bit. Charge pump for hydraulics fails (2330 hrs). 7/12/93 Install and test hydrogen sulfide sniffer, alarms, and wind sock (0700 2300 Cleaned location and performed rig hrs). WOP (0000-2300 hrs). maintenance. Drill helper sprains foot (2300 hrs), taken to hospital. 7/13/93 Tagged cement 478 feet. Drill-out float shoe and plug (0800-0830 hrs). Sucessfully test surface- casing cement to 1000 psi at 495 feet (0830-0850 hrs). Make-up core barrell and circulate plug rubber from the hole (08500940 hrs). Trip-in core barrell and diamond core bit (0940-1045 hrs). Coring from 497 to 564 feet (0940-2400 hrs). 7/14/93 Coring from 564 to 734 feet (0000-2400 hrs). 7/15/93 Coring from 754 to 914 feet (0000-2400 hrs). Harris Crosby of Nutrioso visits site (1625-1705 hrs) 71 1/16/93 . Coring from 914 to .1104 feet (0000-2400 hrs). Trip-out, change bit, trip-in (030D-0435 hrs). 1/11/93 Coring from 1104 to 1274 feet (0000-2400 hrs). Mix new mud at 1174 feet, anchor blooie line manifold and choke valves and perform rig maintenance (0923-1207 hrs). 7/18/93 Coring from 1274-1454 feet (0000-2400 hrs). Diaphram pump down, replace with centrifigal mud pump at 1380 feet (1528-1545 hrs). 7/19/93 Coring 1454 to 1634 feet (0000-2400 hrs). accumulator at 1553 feet (1245-1345 hrs). Nipple-up and test new 7/20/93 Coring 1634 to 1694 feet (0000-2400 hrs). Trip-out, change bit, trip-in (05350850 hrs). Shut down at 1694 feet, haul old mud, haul water, mix new mud (1244-2318 hrs). 7/21/93 Coring 1694 to 1849 feet (0000-2400 hrs). Bob Dyson (USFS) visits site (0900-0920 hrs). Jim Witcher (SWTDIINMSU) gives geothermal talk to Alpine Chamber of Commerce (1900-2130 hrs). 7/22/93 Coring Lackey (AZDC, the site 1849 to 2002.5 feet (0000-2400 hrs). Daniel Sanchez and Niles (USDOE-Albuquerque), John Sass (USGS-Flagstaff), John Crawford consultant), Frank Mancini (AZDC). and John Hoskins (AZDOT) visit (1300-1530 hrs). 72 7/23/93 Coring 2002.5 to 2134 feet (0000-2400 hrs). Daniel Sanchez and Niles Lackey (USDOE-Albuquerque), John Sass (USGS-Flagstaff), John Crawford (AZDC, consultant), Frank Mancini (AZDC), and John Hoskins (AZDOT) visit the site (0830-0930 hrs). 7/24/93 Coring 2134 to 2244 feet (0000-2400 hrs). Repair diaphram mud pump at 2204 feet (1513-1613 hrs). 7/25/93 Coring 2244 to 2374 feet (0000-2400 hrs). 7/26/93 Coring 2374 to 2509.5 feet (0000-2400 hrs). Rig maintenance (0730-0830 hrs). 7/27/93 Coring 2509.5 to 2614 feet (0000-2400 hrs). Trip-out, change bit, trip-in at 2544 feet (0550-0940 hrs). 7/28/93 Coring 2614-2744 feet (0000-2400 hrs). 7/29/93 Coring 2744-2820.5 feet (0000-2400 hrs). (0900-1022 hrs). 7/30/93 Coring 2820.5 to 2912 feet (0000-2400 hrs). 73 Stuck core barrel! 2784 feet 7/31/93 Coring 2912 to 2966 feet (OOOO-2400 hrs). Trip-out, add 20 foot core barrel, change bit, trip-in (033D-0950 hrs). Conditional hole 2922 feet (1021-1115 hrs). 8/1/93 Coring from 2966 to 3016 feet (OOO0-2400 hrs). 8/2193 Coring from 3016 to 3054 feet (OOOO-2130 hrs). Change-out old mud, mix new mud (1100-1255 hrs). Trip-out, change bit (2130-2400 hrs). . 8/3/93 Bit change continues, trip-in, chase cave at 3046 to 3054 feet, 1.5 feet cave recovered (0000-0030 hrs). Coring from 3054 to 3096 feet (0358-2400 hrs). 8/4/93 Coring from 3096 to 3155 feet (0000-2400 hrs). Clean drill cuttings from mud pits with backhoe (1030-1130 hrs). 8/5/93 Coring from 3155 to 3207 feet (0000-1839 hrs). No core retrieval on run 275, replace overshot (1740-1810 hrs), condition hole (1815-1828 hrs), retry to retrieve core tube (1828-1839 hrs), stuck tube (bent drill rod obstruction). Trip-out to retrieve tube and core, change bit and reamer shell (1921-2400 hrs), dented and bent rod replaced at 2980 to 2990 feet, probable cave (rods sticking while pulling out of hole (2800 to 3010 feet). 8/6/93 Trip-in, chase cave to bottom (0000-1235 hrs). Replace core catcher (12351320 hrs). Coring from 3207 to 3236 feet (1320-2400 hrs). Rods torque-up three times while coring run 276 from 3216 to 3236 feet (1838-2400 hrs). 74 8n/93 Coring from 3236 to 3308 feet (0000-2400 hrs). . 8/8/93 Coring from 3308 to 3337 feet (0000-1350 hrs). Pull-back rods 480 feet, condition hole, ream hole and chase cave back to bottom (1350-2400 hrs). Enco'untered cave bridges at 3020 feet and from 3036 to 3039 feet. 8/9/93 Continue conditioning hole, reaming and chasing cave, 3 feet of cave recovered (0000-0320 hrs). Mix new mud, change-out old mud (1100-1430 hrs). Reaming back to bottom (1430-1820 hrs). Coring from 3337 to 3338 feet (1915-2145 hrs). 8/10/93 Coring from 3338 to 3352 feet (0000-2400 hrs). 8/11/93 . Coring from 3352 to 3369 feet (0000-7333 hrs).Differential stuck at 3369 feet (0733 hrs). Circulate detergent, try to work rods free (0800-2400 hrs). 8/12/93 Continue differential stuck at 3369 feet, circulate detergent, try to work rods free (0000-1900 hrs). Nipple-down BOP, prepare to cement for reduction from HQ to NQ (0700-1900 hrs). Run cement, HQ bit 10 feet from bottom at 3360 feet (1930-2210 hrs).WQC (2210-2400 hrs). 8/13/93 WOC, prepare NQ string, nipple-up and test BOP (0000-1200 hrs). Trip-in NQ rods (0700-1200 hrs), tag cement at 3294 feet, drill-out cement (13352400 hrs). 75 8114/93 Continue to drill-out cement to 3345 feet, no cement below HQ core-barrel landing ring, stuck NQ tube (0000-0122 hrs). Perform rig maintenance, change out mud, and haul water (0122-0350 hrs). Trip-out, and haul water (0350-0720 hrs). Free-up stuck tube and makeup wash rod (0720-0930 hrs). Trip-in wash rod 0930-1200 hrs). Wash and clean hole and prepare to cement (1200-1900 hrs). Run cement (1900-2130 hrs). WOC, trip-out (2130-2400 hrs). 8/15/93 WOC, trip-in and wash-down hole (0000-0400 hrs). Tag cement at 3200 feet, core cement (0400-1230 hrs). Mix new mud, change-out old mud (1415-1600 hrs). Coring from 3369 to 3399 feet (1230-2400 hrs). 8/16/93 Coring from 3399 to 3475 feet (0000-2400 hrs). Lost circulation from 3415 to 3475 feet, major open fractures in core at 3459 and 3462 feet. Lost circulation material (LCM) slugs at 3415 feet (0400-0430 hrs), at 3439 feet (1030-1135 hrs), and at 3349 feet (1540-1710 hrs). 8/17/93 Coring from 3475 to 3515 feet (0800-2400 hrs).Condition hole and send LCM slug at 3475 feet (0000-0800 hrs). Condition hole and send LCM slug at 3515 feet (2100-2345 hrs). 8/18/93 Coring from 3515 to 3585 feet (0000-2400 hrs).Condition hole and send LCM slug at 3535 feet (0400-0930 hrs). 8/19/93 Coring from 3585 to 3655 feet (0000-2400 hrs). Partial returns from 3635 to 3655 feet. 76 8/20/93 Coring from 3655 to 3725 feet (0000-2400 hrs). Partial returns from 3655 to 3685 feet. Pull-back rods 440 feet at 3725 feet to condition hole and flush LCM and mud rings from drill string (2200-2400 hrs). 8/21/93 Coritinue to condition hole and ream to bottom (0000-0121 hrs). Coring from 3725 to 3775 feet (0121-1425 hrs). Differential stuck, circulate detergent and work rods free at 3765 feet (1425-1510 hrs). Core barrel mislatch on run 328 from 3765 to 3775 feet, lost core (1510-1740 hrs). Trip-out from 3775 feet (1820-2400 hrs). 8/22/93 Coring from 3775 to 3855 feet (0000-2400 hrs). Lost circulation from 3815 to . 3835 feet (1600-2112 hrs). Condition hole, send LCM slugs at 3185 feet (1445-1537 hrs), and at 3835 feet (1940-2112 hrs). Perform maintenance on rig hydraulics at 3805 feet (1225-1307 hrs). 8/23/93 Coring from 3855 to 3975 feet (0000-2400 hrs). 8/24/93 Coring from 3975 to 4085 feet (0000-2400 hrs). 8/25/93 Coring from 4085 to 4195 feet (0000-2400 hrs). Condition hole, circulate LCM slug at 4135 feet (1045-1145 hrs) and at 4145 feet (1400-1525 hrs). 8/26/93 . Coring from 4195 to 4284 feet (0000-2400 hrs). 8/27/93 Coring from 4284 to 4375 feet (0000-2400 hrs). Rig maintenance at 4355 feet (1740-1800 hrs). 77 8/28/93 Coring from 4375 to 4475 feet (0000-2400 hrs). 8/29/93 Coring from 4475 to 4505 feet, total depth (TO) at 4505 feet (0000-0634 hrs). . Rig maintenance (0652-0800 hrs). Wiper-run then trip-out from 4505 feet (0830-1300 hrs). Nipple-down BOP (1300-1330 hrs). Test and trip-in cutter, make first cut at 2700 feet on HQ rods (1345-1900 hrs). Pull-out of hole, rebuild cutter, trip-back, try two more cuts, pull-out, trip-back with new cutter (1900-2400 hrs). 8/30/93 Sucessful cut at 2510 feet, pull 251 HQ rods, 85 HQ rods left in hole (00002400 hrs). Jim Witcher leaves Alpine with load of core for the AZGS depository in Tucson. 8/31/93 Trip-in 4505 feet of greased-up NQ rods, capped at bottom and filled with clean water (0000-0700 hrs). Nipple-up well head, begin rigging-down and demobilization, temperature log bore hole through the NQ rods (0700-1900 hrs). Witcher delivers core to AZGS in Tucson. 78 APPENDIX 6 CEMENT AND DRILLING MUD ADDITIVES USED IN THE ALPINE 1IFEDERAL BOREHOLE DATA ARE DAILY PENETRATION INTERVALS VERSUS DAILY MATERIAL USAGE List of drilling products with registered names and trademarks. product company DRISPAC Drilling Specialities Company, Inc. SDF K-LA LUBE PLUS Summit Drilling Fluids, Inc. SDF RING FREE L PLUS Summit Drilling Fluids, Inc. SDF 2000 Summit Drilling Fluids, Inc. SDF SUPER GEL Summit Drilling Fluids, Inc. TORKEASE Drilling Specialities Company, Inc. 79 CEMENT o 20 30 40 50 O~.....l.,.,...I......JI.....I.....I......I-...I.-I.....J,.....l..-'-....L.-.I......l""'.....l-...L-J,....J.-I.-'-...I-...L.-"""'" og~===============::J DATA ARE DAILY PENETRATION INTERVALS VERSUS DAILY MATERIAL USAGE o o o PRODUCT: USE: 01\.) r'Tl 0 lJO CaDaI1 ce...- CIIIiIII.mp CcitBIlDt IqIIIlllZIIIID prewE _ c::in:IIIII8iaD PACXAGING: M lib b8p ~O :J: ~ o o o ~ tn o o 80 o DRILLING DETERGENT 2 3 4 1 5 6 O-i-...l.-L-J....&....l-J....&....lI....L...J"".JI....L.....L-I....-&o......L-I....-&o......L-I....-&o................"""-........"'""-...... (]I o o o PRODUCI': DriJJiq DetapIIl. DESCRJPTION: Cuuc:euta_ iWfII::tmt, o o USE: (]I PACKAGING: o o SIlIbiJizIe .-:r BIIIitiw fwiiiiitiws S&8bitize d8y UIIIIidt drill ariDg 5 pi bucIII:Is ON r'1 0 -0 0 -i 0 I n ..... Nd with ~1'lII'''''''' ad GX)p:a&iiIlIild IIllM:ia 1----..., LJ o o o LJ (]I o o ~ o o o ~J-----' (JI o o 81 o 1 DRISPAC 345 2 7 6 8 o-t-I...I..I...I...I-I-.I-I-.I-I-.l..J..J...I..J...I..J...I...L...l...L...l..J..J..J..J..J..J...J..J...J..J...J..J...w..w...w tn ° 1----. .... °° 0-+--PRODUCT: .... DESCIUPTION: PoJyajcIaic ce1Iukl8e RepJar pade polymc:r tn o° USE: IDcn:ue ad IlIIIbili= viIcaGity Redaa: API fiInIiaa , . Forms pnacbve coUaids rTJ°-+-_---. lJo --l ° 1 - - _.... of. labtit lWdliqad~ I..ailricIa 8llIids, Rlliuc::iD& poleIIIial iIr ItIICk pipe of\..) I DlUSPAC PLUS PACKAGING: 50 Ib -a UJ o 01==::::J o UJ t==:d::==--""""L.- _ (J'l o O~------' ~ °oo ~ (J'l o o 82 K+LA LUBE PLUS o~OF==:::!::l ='::::::!::::::!:::::1=f6:!::::6::!b:b::f,3...J.,...I-J.,...l-1l......I....I. .-.r......l.-I..~-I-.l-J-'...JI...,I? . . tn- o-t===:;----' 0_ - --- oq- 0- - --0:o 0- - 01\..)rrl o -+-_ _---, ""DO --f I 0 -I-----J PRODUCT: SDF K + LA LUBE PLUS DESCRIPTION: Bioclqnldablc liquid lubri.c:laIl USE: LubricIt.e drill rods IJId reduce formasiao aickiDI StIbilize clay PACKAGING: 5 pi bucIa:ts -1---_ _ , 1 " . , - 1_ _- LoJ- U'l_ o 0- _t-------------------. - I ~_I----' 0_ o 0-1---..." 83 LCM o 1 2 3 4 5 6 o-l-.J..,.J.-l-..l.....I-l-..l.....I-l-.J....J-l-.J....JI.....J........I.....JI.....J...........I.....J...........I.-I.......r....l....I..........J....J o o o PRODUCI': 1.4JIIt ~ MMc:rial (LCM) DESaUP'IlON: Gn:mId JlIIIlCI' o USE: CCIDbOl ud plq loll c:in::alfItiIlI ZIIIIIeI ( J'l o PACKAGING: 40 II IIl:b 0"-' rT"J O -0 0 -f0 I GJ o o o GJ (J'l -t---'------, 0,..--------' o ~ o o 0..;-----, ~ (J'l o o 84 o ROD GREASE 2 3 4 1 5 6 O-l-..L....I.....L-..L....L...J-...l.....l....J-...L...J........""""'-I--I-..lo-I--I-.......--I-.....................o.....I.........l-.I (JI o o o o o PRODUCT: RAId GIUIIfl D:ESCRIPTION: BiocIepadIIbk p:IlIe (JI o o USE: l.ubric:ate cIriII IUds ad n:duce ilnDIBbaD IIictiD& PACXAGlNG: 5 plllucIa=U 01\.) rrl°0 '"'0 -f0 I LJ o o o LJ-I====; (JI-l--_........I o o ~ o o o ~ (JI _ o o 85 o 1 RING FREE 234 5 6 O+,.,l.".,I-J.....l.-L....I.........r......J.-l-,.,l.".,I.......l..~I....I......&.....&....I.....I-.r......J.-I-,.,l.".,I-J.....l.-L.....I....J CJ'I o o PRODucr: o o o DESCIUPIlON: Non-Ialdc liquid pol'.....ic dIiImer CIIIIIlIiJIIuo barYy IIIClIaIs USE: CJ'I o SDFIUNG nEEL PLUS Rapidly ftducu mud WI:aIity Primarily a:d to n:IIKM: mud riDp PACKAGING: S p1lla1:1mU o CJI\.) rTJ0-t-_ _....-, -0 0 ....,0 I ..--I\.) CtlCJ'l ~O .......... 0""1---......., UJ o0"'1---......1 o LJJ---(]l o o ~ o o O.J-----. ~ (]l o o 86 SDF 2000 3 4 CJ1 oo 1--------, .o. . '1---...., o o ...... CJ1 oo 1--_ _-, 01\.) !'Tlo-+-_ _......, "1)0 ....,0 I PRODUCI': SDF 2000 DESCRIP'I'ION: AlliaaicWlyl ~ Iiqaid USE: • Cay ltJIbi1iprion Pnwides IlIOd viIcaI:ity PACKAGING: S pi bacilIIl&s VJ o g~=== VJ-+----, CJ1 o o ~ o o o ~ CJ1 o o 87 5 6 o o - · o ,- (JI o· · -oo -- 1 I I I I I PROOUC1': I SODA ASH 23 4I I I I SadaAlb D!SCRIP'I'ION: Sadiam wk1Dc:raIIe pH RmIDve c::ak:ium fnlm cIri1IiDIlIIIIIIi ad __ USB: PAaAGING: lOOlb-=kl ,- o - -o - I (JI ,- o - o~ · - rrl° - LJO -;0 I - - I (.,J o o o (.,J U1 - -- oo ~ o -o o ~ I I I I I I I - o- U1 o 88 5I • 6 I SUPER GEL o 5 10 15 01=!:::::l::::::::b::!:::::::6:::6::i======:::!=!:::d:::6:::&=:6:::::!::::::1:~..L-J.....l-..L.J 01 o o ..... o o o ..... (J1 o 0 1 -_ _.... PRODUCT: SDF SUPER GEL DESCRIP'I10N: High pIde bc:ncoficill!ftd sodium IDIIIIDDOrilIoI (WyamiD;~) USE: Build YiIcaIity CaaIroIIltnIIiaD . . BaUd waU c:Ike Smpcad CIIDiDp PAaAGlNG: 50 Ib IiIIdaI ~ o o o ~ (J1 o o 89 o 1" TORKEASE 234 5 6 O+J..,.,L,....l-.I....I.....J-l..""L....L-~....L...J:.....L.....I-L-I-.J-I......l-..L....L....J-.L...I......l...l-I.....l-I PRODUCf: 'I'ORICEASE DESQUPTlON: e.:a:uuated, WIler IDb1bk, . . paI""in&. ~ IubriclIIIl USE: Reduca torque aDd dJq CID driIllIriDB Enlymoes JICIformlml:e of atIIc:r DIIId IIIIditMs PACKAGING: 10 Ib bel c...J o 8'+=======:J c...J (]I o o ~ o o o ~ (]I o o 90 APPENDIX 7 LETTER OUTLINING A CONTINGENCY PLAN TO COMPLETE THE ALPINE 1/FEDERAL BOREHOLE IN PRECAMBRIAN BASEMENT 91 SOlJl'HWESTTECHNOlOGV DEVE1.OPMENT INSTI1'UTE Bole 30001/Dept. 3SOLILU ~ Now Mulc:088003-0001 Telephone: (505) 646-184a TeIe'ax: (505) 646-2960 8/16193 Steven L. Rau:zi Oil and Gas Pmpam Ad.ministrator Arizona Geological Survey 84S North Park Ave. Tucson, Arizona 85719 Dcar Steve: An unusually thick section oCTerliary sediments. unconformable with underlying Cretaceous s.1ndstoncs. probably indicatcs that a primary drilling objective. Precambrian crystalline basement. will not be achieved by the Tonto!Alpine #l/FedeIal bore hole (State permit #878) under the c:urrent contract unless a thin sequence ofPaleozoic sttata overlies the Precambrian. A -rigid- conttaet between Tonto Drilling Services of Salt Lake City and the Arizona Procurement Office in Phoenix precludes drilling past 4.Soo feet depth. jeopardizing a satisfactory hot dry rock (HDR) evaluation of the White Mountains region in Arizona. Great uncertainty exists as to the type ofPrec:ambrian rocks beneath the White Mountains area. It is of paramount importance to an HDR evaluation to determiDe the chaIac:ter of the Precambrian basement A contingency solution to the problem ofn:ac:hing Precambrian basement may include: (1) designation of the Alpine #1/Fedc:ral test as an observation bole for up to 2 years until the hole can be reoccupied and completed into basement and much desired scientific studies are complete. (2) uansfcrring the responsibility and liability of the bore hole from Tonto Drilling Services to the U. S. Geological Survey (USGS) when the conditions of the Tonto/State of Arizona contract are fulfilled in January 1994. Under this scenario the USGS would plug and abandon the hole and restore the site under the terms and conditions of the Arizona Oil and Gas Commission, U. S. Forest Service. and U. S. Bureau orLand Management This contingency may provide the best alternative within the current drilling contract framcwodc. provide a quality HDR assessment. and protect the bore hole from third party interference until an adequate evaluation is complete. Because a thorough HDR evaluation will insure the maximum geologic and geophysical information, a temporary obse1vation hole status could lead to economic benefits to include the discovery of new oil and gas in Arizona. In any case, much scientific value will acaue to regional geologists who study Paleozoic sttatigraphy and Precambrian terranes. As geotechnical subcontractor to Tonto Drilling Services, 1. am working with Thomas H. Moses of the USGS in Menlo Park and John Sass of the USGS in Flagstaff to find a suitable contingency to complete the Alpine #l/FederaJ bore hole in Pm::ambrian basement Tom Moses may be reached at (415) 329-4870. Any assistance or feedback on how to proceed with regard to well designation and transfer of operators would be of tremendous importance to the Alpine ill/Federal HDR evaluation. Si:L)IY(~ Ja~c. Witcher Geologist cc Larry Pisto Frank Mancini Tom Moses John Sass 92