U. S.u DEPMTMENT OF THE ^ERIOR • PROTOTYPE OIL SHALE LEASING PROGRAM TRACI -TRACT C-b .QUARTERLY REPORT #3 (Through May 31, 1975) BLM Library D-55SA, Building 50 Denver Federal Center P.O. 86x26047, Denver, CO 60223-0047 c »UD13 o brnitted to: ) Mr, Peter A. Rutledge Area Oil Shale, Supervisor Conservation District U. S. Geological Survey Grand Junction, Colorado By: : Ashland Oil , Inc. Atlantic Richfield Company Shell Oil Company, Operator The Oil Shale Corporation ■ ■ &i JULY 15, 1975 TABLE OF CONTENTS BY VOLUME NUMBER Volume Number Table of Contents I, II, III % IV V VI § VII VIII X, XI, XII, xiii. xiv a XV PRE- EXPLORATION ENVIRONMENTAL RECONNAISSANCE SURVEYS ENVIRONMENTAL BASELINE MONITORING PROGRAMS A. Surface Water 1. Streams 2. Springs and Seeps Core Drilling and Associated Ground Water 1. Well Survey Plats Completion Data Drilling Water Production Water Quality - Drilling Water Water Quality - Baseline Monitoring Water Quality - Aquifer Pump Tests Aquifer Data - Jetting Tests Aquifer Data - Drills tern Tests, Multipacker Tests, and Mini -Pump Test Aquifer Data - Pumping Tests Lithologic Logs Geophysical Logs Assays Core and Cuttings Trace Element Analysis n.-v,-.'!- \f,-,.-t-,^--. • .-..- J\UVfv i _15. Core Gas Samples Air Quality 1. Air Quality and Surface Meteorology 2. Low Altitude Meteorology 3. Upper Air Studies 4. Visibility 5. Atmospheric Diffusion Studies XVI XVII D. Biology 1. Terrestrial Wildlife Studies 2. Aquatic Studies 3. Terrestrial Vegetation Studies 4. Dendrochronology and Dendroclimatology Studies 5. Soil Survey and Productivity Assessment Studies OTHER STUDIES Fish and Wildlife Management Plan Revegetation Studies Microenvironmental Studies Aerial Photographic Study Archaeological Studies Scenic Values Study > P3 - CD >9 H CD (/) rt > c < - O - s H CD in - r+ II B- 9 AQUIFER DATA - PUMPING TESTS Lower Aquifer Pumping Test Quarterly Report #2 contains a detailed description of the objec- tives and history of the upper zone phase of the aquifer pumping test at AT-1. It was stated that the upper zone test was termi- nated in mid-January when a drilling rig was brought back to the site, and AT-1 deepened. This action, in fact, began the prepar- ation for testing the lower zone. The test well AT-1 was drilled to the base of the mine zone and casing was installed and cemented in place. The well was then drilled an additional 270 feet, down- ward into the "lower zone aquifer." A pump with water production capability of 150 gallons per minute was installed at a depth of 1430 feet below ground surface. (It was determined during the deepening of AT-1 that the lower aquifer could not sustain rates in excess of 150 gpm. The upper aquifer, by comparison, was capa- ble of yielding greater than 400 gpm.) Water produced during the deepening operation had a relatively low dissolved solids content, 1500 mg/1 and a fluoride content of approximately 20 mg/1. This was similar in character to waters directly above the Mahogany zone in the upper aquifer. During the test, fluoride and boron levels averaged 20 mg/1 and 1 t*o 2 mg/1, respectively. During the lower zone test, the dissolved solids content of production water never exceeded 1200 mg/1. Background pressure readings were taken for several days before the test was actually commenced. Almost immediately, however, an equip- ment problem forced a restart. After restart, the test well main- tained a rate of approximately 120 gpm for 17 days. At that time, the generator unit failed and the initial pumping phase of the test was terminated. A recovery period lasted for eight days and was followed by a pulse -pumping phase before final shut-in. A complete chronology of events for the lower aquifer test is given in Table II B-51. An overview of pressure response data generated during the lower aquifer test revealed that strong anisotropic or directional per- meability exists. The orientation of this anisotropy in the lower aquifer can be described as following the general direction of AT-1 to SG-6. This is approximately normal to the directional permeability shown in the upper zone test. Computer analysis has not been ini- tiated as yet because pressure data are still being reduced and will not be available in suitable format for some time. Manual plots and interpretation of the pressure responses in the lower aqui- fer, however, have yielded transmissivity values as shown in Tables II B-52 and II B-53. More complete permeability values are being calculated by the Leasee's reservoir simulation group. II B-1081 i Aquifer Test Pad SG-IOaiOA TOP PARACHUTE CREEK "a" groove MINE ROOF MINE FLOOR, B GROOVE Perforated Interval U j-H Tubing String Number Figure II B-14 SCHEMATIC CROSS-SECTION LOWER AQUIFER PUMP TEST C-b TRACT, COLORADO SCALE= None II B-1082 SG-IOQIOA TOP PARACHUTE CREEK "a" groove mine roof' mine floor- V 6R00VE- WATER LEVELy Qki m SI) i •> 0 © o o 0 0 o o o o o o o TD 2211 Evacuation Creek Parachute Creek Garden Gulch Aquifer Test Pad AT- 1 A AT- 1 AT-IC •HI l J m SG-6 JH mi r- Open J Hole TD 1700' Pumped Well HI 1 n SG-II >TH }= L Perforated Interval U J- 31 Tubing String Number Figure II B-14 SCHEMATIC CROSS-SECTION LOWER AQUIFER PUMP TEST C-b TRACT, COLORADO SCALE; None II 13-1082 41 With respect to potential aquifer interconnection, it was observed that pressure gauges in the upper zone showed no response to the pumping in the loiter zone, in spite of large drawdown of lower aqui- fer water levels during the pumping of AT-1. Water levels in the upper aquifer continued to recover throughout the lower zone test. This is an expected response, if the two aquifer systems are hydraul- ically separated by the Mahogany zone; water levels in the upper zone would be expected to recover or rise as a response to the ter- mination of pumping of the upper aquifer. Supplemental graphs have been provided which illustrate the manual data interpretation conducted to date (Pages II B-1088 through II B-1157). Pressure *(psi) is plotted versus time for each of the well strings monitored during the lower zone tests. Additional data in the form of computer reduced water level responses and pressure responses is currently being generated and is not available for reporting. II B-1083 TABLE II B-51 LOWER AQUIFER PUMP TEST Sequence of Events 6-hour surge test drawdown (systems test) 2-5-75 (12 P.M. -6 P.M.) surge test recovery 2-5-75 (6 P.M.) to 2-15-75 (5:20 P.M.) Original start of drawdown 2-15-75 (5:20 P.M.) to 2-17-75 (12:45 P.M.) (generator failure) Recovery Period 2-17-75 (12:45 P.M.) to 2-21-75 (12:00 P.M.) Initial drawdown 2-21-75 (12:00 P.M.) to 3-10-75 (10:00 A.M.) . 17 days pumping Initial recovery 3-10-75 (10:00 A.M.) to 3-18-75 (12:00 P.M.) 8 days shut in Pulse test drawdown 3-18-75 (12:00 P.M.) to 3-26-75 (12:00 P.M.) 8 days pumping Final recovery 3-26-75 (12:00 P.M.) to 4-15-75 (12:00 P.M.) 20 days shut in Pulled pump and instruments 4-15-75 Set up limited data collection network in ATl-c, SG-6, SG-10, and SG-11 5-7-75 through 5-14-75 changed upper strings to Stevens digital recorders, lower and middle strings using pressure monitor on Sperry systems. II B-1084 I LOWER AQUIFER PUMP TEST DRAWDOWN AND RECOVERY CURVES > > II B-1085 » * TABLE II B-52 TRANSMISSIVITY AND STORAGE COEFFICIENT VALUES LOWER AQUIFER PULSE TEST - DRAWDOWN PHASE WELL NO. DRAWDOWN COMPUTATIONS Horizontal Permeability AT-1 T = 359 gpd/ft. early stage T = 532 gpd/ft. middle stage T = 755 gpd/ft. final stage T53.5 millidarcys AT-IA (String #1) T = 465; S = 5x10-4 94.4 millidarcys AT-IA (String #2) Interpretative technique is not applicable AT-1C (St p #1 ) T = 219; S = 5x10-5 early stage Instrument drift during final stage - AT-1C (String #2) T = 316; S = 2x10-5 early stage T = 513; S = 6x10-7 final stage 104.2 millidarcys AT-1D (String #2) T = 271; S = 3x10-5 early stage T = 327; S = 7x10-7 final stage 66.4 millidarcys SG-6 (String #1 Slight downward response SG-6 (String #2) T = 442; S = 8x10-5 final stage 89.7 millidarcys SG-10 (String #1 ) T = 1468; S = 2x10-4 T - 811; S - 1x10-4 164.6 millidarcys SG- | (String #2) No response SG-11 (String #1 ) No response SG-11 (String #2) 11 13- II) SO "" ' " Overall downward trend i * TABLE II B-53 TRANSMISSIVITY and STORAGE COEFFICIENT VALUES LOWER AQUIFER PUMP TEST Well No. Initial Drawdown Initial Recovery AT #1 T = 310 g/d/ft. Initial T = 460 . Secondary T = 380 Tertiary T = 160 g/d/ft. Initial T = 320 Secondary AT #1A (String #1 ) T = 441; S = 3.11x10-4 T = 338; S = 4.56x10-4 T = 435; S = 5.64x10-4 T = 335; S = 8.11x10-4 AT #1A (String #2) No Valid Response No Valid Response AT #1C (String #1 ) T = 129; S = 1.52x10-4 T = 260; S = 2.24x10-5 ■ T = 1125; S = 1.80x10-4 T = 255; S = 3.22x10-5 (String #2) T = 173; S = 5.82x10-5 T = 275; S = 2.04x10-5 T = 376; S = 3.77x10-6 T = 157; S = 9.44x10-5 T = 340; S = 1.98x10-5 AT ?HD (String #1) T = 143; S = 1.08x10-4 T = 348; S = 8.63x10-6 T = 136; S = 1.18x10-4 T = 325; S = 2.14x10-5 SG - 6 (String #1 ) T = 1430; S = 4.52x10-4 T = 620; S = 3.87x10-4 T = 2800; S = 7.38x10-4 (String #2) T = 1520; S = 6.86x10-5 T = 574; S = 5.62x10-5 /T = 305; S = 6.66x10-5 T = 400; S = 7.53x10-5 SG - 10 (String #1 ) T = 490; S = 6.06x10-5 T = 950; S = 1.13x10-4 T = 846; S = 1.11x10-4 (String ?2) No Response Very Slight Downward Response SG - 11 j (St |g #i) No Response No Response (String #2) T = 1055; S = 1.69x10-3 No Recovery-Downward Response II B-1087 ( 1 t i 1 1 - II B-1088 : 6 G £ ^.: . ;:~( : . :i II B-1089 n 10__ I 7 6 V -.-.-. 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Initial Final ATrflA (String #1 ) T = 333.4 gpd/ft.; T = 365.4 gpd/ft.; S = 6.4 x 10~4 S = 5.3 x 10"4 Initial Final (String #2) NO VALID RESPONSE AT#1C (String //I) T = 133.4 gpd/ft.; T = 310.3 gpd/ft.; S = 1.8 x 10"4 S = 1.5 x 10"5 Initial Final v String £2/ 1 - CC.KJ \)\J<1/ 1 0 . j T = 346.9 gpd/ft.; o = v/ . c. X i U S = 1.4 x 10~5 Initial Final AT// ID (String #1 ) T = 303.2 gpd/ft.; T = 360.5 gpd/ft.; S = 2.5 x 10~5 S = 1.1 x 10"5 Initial Final SG-6 (String #1 ) T = 380.8 gpd/ft.; S = 1.02 x 10~3 (String ¥1) T = 400.5 gpd/ft.; S = 8 x 10~5 SG-10 (String #1 ) T = 694.6 gpd/ft.; S = 1.4 x 10"5 (String /;2) NO RESPONSE SG-n (String //I ) / r- j • . !! r\ \ NO USABLE RESPONSE DUE TO HIGH GAS POSSIBLE PRESSURE (String ji2) NO USABLE RESPONSE DUE TO/INSTRUMENT DRIFT II B-1125 ) III- HP iBr IP t: ::t: . rrrrT :£:-.: .1..- T — f - T?- —0, *-!*.- -.zi :: Lfe V" V^ ^£££==77 ~\ :(:::.:- vf - T" 2 . 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I' 7 li-iij . ::l;::; ::.(:::: : i i '" ' . ■ • :j:-. : : ; :i : • : 77 :i:jj:i:.j -eli: ■•j" 1 ! i ; ■ - ■: i . , : : * i ;. i-. ! :7 =nM 1 ... . . ■ . j|!j j - . i ■ LLLLuj 1:' :.:i:: ..: j 1 . 1 ; i -7-1 : ■ ! ;! * i 1 :: . ;': 1 1 ; ■ a ... 1 . ; ; : 1 1 i: i a 7 iKJ 1 ■ j:: :i: | < ' I I !| :.|: jB :... 1 ■ ! . <* : • - i .. ij i ;■ I : . : ■ j i ■, ; - •7,v -L. ---!- - '■'■ ■ i :! ' !i;i ! ! : ^.— «r '■ — «a- _ ; . -.-i ... »— U— - i ;i - 1': • ;I:W "■ \l . '. ' .j.;... i ! 'l ' ! v- 1 — a. — 1 : 1 ■ V ■:■!:;• ! 1— »- . . ..... . — ^- ' h U'li > : i i : : : nft 8 o r P -1 rr JfJ'fiT) — 10 2^^_ ««i '>m>.Jr| Zl"2l ^1^ MDNI nil 01 07 * &r 2->J TI B-1157 } ) - -) ) AQUIFER DATA ALLUVIAL WELL PUMP TEST II B-1158 - : TABLE II B-55 ) ALLUVIAL WELL A#l Measured 4-23-75 Static Water PRODUCTION 6.11 gpm Starting 1129 hours Level 46.82 ft. Drawdown Recovery Column #1 Column #2 Column #1 Column #2 time of measurement drav/down in feet (-) time of measurement recovery in feet (-) from 0 = 1129 hours from 0 = 46.82 feet from 0 = 1309 hours from 0 = 46.82 feet + minutes below land surface + minutes below land surface 0 0 0 0 1 0.59 1 .55 2 0.63 2 .62 3 0.675 3 .66 4 0.70 4 .68 5 0.705 5 .70 6 0.715 6 .71 7 0.730 7 .71 8 0.730 8 .72 9 0.730 9 .72 10 0.725 10 .725 12 0.735 12 .73 14 0.740 14 .74 ) 16 0.745 16 .75 18 0.745 18 .75 20 0.745 20 .76 25 0.745 25 .76 30 0.750 30 .76 35 0.750 35 .76 40 0.755 40 .765 45 0.755 45 .77 50 0.755 50 .77 60 0.755 60 .77 70 0.760 70 .77 80 0.765 80 .77 90 0.760 90 .77 100 0.762 120 0.760 140 0.760 160 0.760 180 0.750 temperature conductivity 12.5oC 2200 ohms II B-1159 - c \ TABLE II B-56 ALLUVIAL WELL A#2 PRODUCTION 6.11 gpm Measured 4-14-75 Starting 13:05 hours Static Water Level 14.06 ft. Drawc iown Recovery Column #1 Column #2 Column #1 Column #2 time of measurement drawdown in feet (-) time of measurement recovery in feet (-) from 0 = 13:05 hours from 0 = 14.06 feet from 15:45 hours from 0 = 14.06 feet + minutes below land surface + minutes below land surface 0 0 0 5.72 1 2.8 1 3.0 2 3.25 2 2.15 3 3.7 3 1.79 4 3.93 4 1.59 5 4.03 5 1.40 6 4.15 6 1.27 7 4.29 7 1.16 8 4.37 8 1.18 9 4.47 9 1.12 10 4.56 10 .95 12 4.77 12 .83 ) 14 16 4.94 14 .75 5.04 16 .69 18 5.12 18 .63 20 5.20 20 .58 25 5.28 25 .48 30 5.41 30 .40 35 5.47 35 .33 40 5.55 40 .28 45 5.60 45 .25 50 5.60 50 .21 60 5.58 60 .15 70 5.67 70 .10 80 5.68 80 .05 90 5.69 90 .05 100 5.69 100 .01 120 5.72 120 -.03 140 5.74 140 -.05 160 5.76 160 -.07 180 5.72 180 -.09 200 5.67 200 -.10 220 5.67 220 -.11 240 5.72 240 -.12 average temperature average n.o°c conductivity 1300 ohms 11 B- 1160 c #A1 TABLE II B-57 ANALYTICAL SUMMARY ALLUVIAL WELLS. Drawdown (late data) T = 67,210 gpd/ft. Recovery (early data) T = 10,082 gpd/ft, #A2 - Drawdown (early data) T = 881 gpd/ft Recovery (late data) T = 2,688 gpd/ft The range between early and late data analyses is the result of hole effects on the early data in general; the late data of these analyses will be the figure used. II B-1161 C ^ ^ a ; nX MzL S^PTOcL " WATtft. " .\, C-ilP "| ,";."■- r-i^/^z""-" "' ~^ft(VvPi_s"~- T~A~k t-,J ■ fV S A M_o *- Lt.ve.i_ ___._. CovJOacT Qr m, (VMN __£. j_io Nl O 2- 3 1 _____ ______ -s ______ ^.7^ _L_ :______ 6 oj_l$_ 1 _12___ ___ (0 ^. r_y _- ^ < <_■/ j c< / ^ 5 i_= Li 2 _o^ f 4. is? ^ 7-f ____ SO L5L i<__ __L SO ___ ___ _ _____ 26> ?_4<3 L,£V£L „____? ______ _______ __Z___ QJsdA J2__. C___«X IZOQ GPM .-_.l Rta ■_■ ____ ________ ______£_ _2_1 12/1 |V\\*- i_"___ lc v/£l _-j_> 2-S" 3.0. -74 2s~ _t__ 4S- ____ • 72- _____ ,7.? qO ___. 60 7^ So 75 7 _ -i _. 160 7^ 7<£ ■ 71, _?„a2. 2_EO 77 ,'Z.Z ___77_ - 77 ,77 iVUM. !__.£_ _£__-__ _J_____£k -_M0 II B-1166 < -)Sa A_^L 1 y o i 2. 3 1 ,5" & % zi 3 .25" 3.7 ■?oo 13M J zoo f3QO I30O i3C>Q 6.1 < Ail 6,i( tAL 6JiL I I 1/ I ( R^covf^ y £~ 4^ Q 4 .6. A52. 7 ? _lq__. <~"^2. JLZ2 i.2Z |Y\\^ 30 3 s" 4 0 /. /Z . 75 4S~ SO j^L_. 60_ £0. (40 UaCL--.a7 4£ 22l z§ -* — ■ Lfid Z_43 A u , o \\f£L _k=.EL L£2. -.12- I II B-1167 II B-10 LITHOLOGIC LOGS The lithologic logs present a description of rock types encountered in a core hole. The detail of description varies with depth and operation. In most cases, however, the lithology is described from drill cuttings on ten- foot intervals above the "A" groove. In the lower zones, the lithology is described from cores on one-foot intervals. In addition to providing a means for describing lithology, the litholog presents data such as information on structural dip, joints, fractures, and general rock quality data. These data are entered in the lithologic log at the appropriate depth. The final lithologic logs for the following wells are included in this section of the Third Quarterly Report: AT- la SG-10 SG-1 SG-11 SG-6 SG-17 SG-8 SG-18 SG-9 SG-19 For information on lithologic logs compiled for other wells, refer to the Well Summary Table II B-l. IOCS CQNflDERED1 DON O'F kQ LOt II B-1168 (