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Home My WebLink About1991 Endicott Oil PoolBP EXPLORATION March 23, 1992 Dave Johnston, Chairman Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501 BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 RE: Year End 1991 Endicott Oil Pool - Waterflood Surveillance Report Dear Mr. Johnston: Attached is the annual Endicott Waterflood Surveillance Report. This report covers the status of the Phase 1 and the 36/3C subzones waterflood program from the initiation of injection in February 1988 through December 1991. In addition, field surveillance and material balance information is provided from field start-up in October 1987 through December 1991. BP Exploration recommends a briefing in April 1992 to illustrate the present status and future waterflood plans. Please advise Mr. Ron Shook at 564-4832 concerning a convenient time for the meeting and if there are any other questions. rely, B. J. Pollcky " Manager, Reservior Engineering TNT/JLH/Ims cc: Working Interest Owners RECEIVED MAR 2 7 1992 Alaska Oil & Gas Cons. Commission Anchorage mss/ a6eaopuv uolsslwwoo suoO seg 1p 1101'A`-e1t+ Z66I L "L adb GIARDIA Endicott Field pCGCC Meeting • April 27, 1992 Endicott FValtl Waterflood Performance 7:S0 . 2:15 Pm • Project Status . injection Performanoe • Reservoir Woterflood Performance • Future Plana Endicott Safety Flare Limit 2:15 • 2:45 Pm • Sgokground • Flare Limit RequeSt • basis -1 r, •.1 I IaF4" 1 1 I:- T f`r !J 1 :11.1. .111 . 1! III - I r • _.• , v.- i -s �� ,u ENDIC WATERFLOOD S f ` DEC' ,L,�./3-�'-+,..a.c l �rt.P.-eta .�_•-f�� This report covers the period from tl 9, 1988 through December 31, 1991 f rt period, water injection occurred in - __ _ _ _ _ , An eighteenth injection well was drilled in 1991, but not placed on injection until 1992. Exhibit 1 shows a map of the field with the year-end well status including the existing water injectors, gas injectors and oil producers. Cumulative Endicott production since start-up is 157.1 MMSTB of oil, 186.4 BSCF of gas, and 37.7 MMB of water. Cumulative water injection into Endicott through December 1991 is 101.5 MMB sea water and 33.4 MMB produced water for a total of 134.9 MMB as detailed in Exhibit 2. The cumulative injected and produced reservoir volumes since start-up are shown in Exhibit 3. As of December 31, 1991, reservoir voidage had exceeded gas and water injection by 60.34 MMRB. Injection Well Performance An overview of waterflood performance is shown in Exhibit 4. Total injection volumes, the target injection rates, injectivity index and well start-up dates through December 31, 1991 are shown. Exhibit 5 provides graphs of the injection rates, injectivity index, and wellhead pressure versus time for the seventeen water injection wells. Below is a detailed activity summary for several injection wells. Well 1-37/P-24 was converted back from Zone 3A production to Zone 2B injection during October, 1991 and placed on injection November 2, 1991. This well will remain on injection until breakup in 1992. After that, it will revert to 3A production and stay in that service until 2B gas injection no longer is able to maintain reservoir pressure. This is estimated to occur in four to eight years. During November, 1991, tracer was injected into six injection wells. Radioactive tracer was injected into wells 1-69N-19, 4-04/T-26 and 4-48/K-43. Chemical tracers were injected into wells 1-43/P-26, 2-14/P-14 and 2-44/R-12. A rig workover was performed in March, 1991, on well 2-44/R-12 to repair mechanical problems. At that time, the well was recompleted to eliminate a "thief" interval in the bottom of the well. Unfortunately, during the perforation operations, the pert guns were sanded in the well covering most ofh D MAR 2 7 1992 Alaska Oil & Gas Cons. Commission Anchorage perforated interval. The well is able to inject up to 10 MBWPD, but it is impossible to survey the well to determine zonal injection split. Due to the problems with well 2-44/R-12, another injection well, 2-54/0-12 was drilled in late 1991 for injection into the 3A sub -zone. This well was placed on injection in January, 1992. Well 2-64/1-1-10 was hydraulically fractured in December, 1991, to increase injectivity. A post fracture survey indicates that the liner lap is leaking. The well is shut-in and repair options are currently under evaluation. Water Injection Performance Pressure surveys taken as part of the reservoir surveillance program continue to verify the restricted pressure communication across the mid -field fault system. The observed pressures in the SDI region continue to be lower than those observed in the MPI region. Implementation of water injection in the SDI area has mitigated the pressure decline in subzones 2A, 2B and 3A. Refer to Exhibit 6 for the bottomhole pressure data and voidage plots since field start-up. Commincled Water Iniection To maximize sea water injection during winter months, commingled water injection started in October 1990. We have been able to continue commingled injection with no scale or operation problems. Future Waterflood Plans There are eighteen water injectors in the field with injection capacity over 200 MBWPD. These wells brought to completion the Phase I injection program for the Endicott Field. We plan on drilling two additional injection wells in the 3B/3C subzones in the SDI, later this year. These wells will improve the sweep as well as increase our capacity to match voidage in those sub -zones. The waterflood surveillance program will be used to evaluate the reservoir performance and determine the need for additional Phase II waterflood development wells. EXHIBIT 1 ENDICOTT FIELD ' TIGVARIAK FAULT%s 312 339 3�9 ' 2 -OB 1-09 J-19 !,;� 2a6.5 1-21 317 - J-39 0 i' J-18 . c�' !?�� K-25 3-33 K-16 � �'pp.F r J'30 3-15 K-37 4-50 t w' 2-18 \ _ 3-09 '' -2 K-33 -21 i i 4 L-16 �. 48 3-25 3-11 J- L-34 3-95 230 2- 2-20 2-04,<, M 27 M-30 3 27 L-36 9 10 i' 0-09 -14 L•15 M-19 'py-25 1-29 M-25 _ 3-01 M-33 4-20 2-36 2-14 2LLi-22 ,•�- -- M-35 -46 0-16 \ RB 3-23 4-26 N-39 �\ 1-35 N-37 q 1-39 1-27 �. 1-41 t 0-25 4-0 3-29 N-32 -1 F-219 P-20 0-23 2 P-2 0-29 O-3 2-42 4-06 i; 4-42 t ` 0-17 P-21 ;�' 1-45 pg 0-32 P-38 _ 2-46 1-47 0-26 3-47 0-15 0-211-57 4-18 ', _ 0-35 ' 2-68 ,. R•23 . JS -30 2-58 ' 2-52 S•17 \ 1-55 W S-09 (f!; S-14 \ R-25 _ j �u i 1-67 \ 2 i' •. -7e .� T-20 1-63 +° .1 W T-22 / i i. � , 6 't e ``�x' IKKELSEN BAY FAULT 17 02 i Cretaceous disposal well not shown MAW J. Hees EXHIBIT 2 ENDICOTT OIL POOL SUMMARY OF PERTINENT DATA (as of December 31, 1991) Water Injection Start-up: February 29, 1988 Endicott Production since Field Start -Up: Oil (MMSTB) 157.1 Gas (BSCF) 186.4 Water (MMB) 37.7 Endicott Injection since Field Start -Up: Gas (BSCF) 149.6 Water (MMB) 134.9` Wells in Operation: Oil Producers 55 Gas Injectors 3 Water Injectors 18"` Waste Water Disposal 1 `• Total 77 Water injection volumes do not include Cretaceous injection Cretaceous injector not shown in Exhibit 1 Well 1-37/P-24 was used 6 months as an oil producer and 6 months as a water injector Produced Volumes Oil Free Gas Water Total Injected Volumes Gas Water Total Net Voida,@e Volumes Total Produced Volumes Oil Free Gas Water Total Iniected Volumes Gas Water Total Net Voidaee Volume., Total Produced Volumes Oil Free Gas Water Total Injected Volumes Gas Water Total Net Voidaee Volumes Total Note: Water injection volumes do not include Cretaceous injection EXHIBIT 3 ENDICOTT OIL POOL RESERVOIR BALANCE FOR WATERFLOOD SANDS EFFECTIVE PRODUCTION SINCE FIELD START-UP from October 1987 through December 1991 (Values in MMRB) MPI REGION by SUBZONE 3� 3B 3A 2-B 2A MPI Total 9.86 4.30 25.08 31.30 46.72 117.26 5.20 2.08 7.68 13.35 6.85 35.16 1.47 Lu 4 Q4 29 3 12.43 16.53 7.24 36.80 47.44 56.84 164.85 0.00 0.00 25.56 34.65 39.11 99.32 4.21 3,24 817 19.06 15.45 50.83 4.21 3.94 33.73 53.71 54.56 150.15 12.32 3.30 3.07 -6.10 2.28 14.70 SDI REGION by SUBZONE K 313 3A 2B 2A SDI Total 18.81 6.92 14.13 38.08 15.99 93.93 4.07 2.45 0.25 1.89 1.43 10.09 2.46 1H 2.90 I1 2 7.00 24.96 25.34 10.35 17.28 51.59 24.42 128.98 0.00 0.00 0.00 0.00 0.00 0.00 13.15 3,66 15.91 31M 19.26 83.34 13.15 3.66 15.91 31.36 19.26 83.34 12.19 6.69 1.37 20.23 5.16 45.64 FIELD TOTALS by SUBZONE K 3B 3A 213 2A Field Total 28.67 11.22 39.21 69.38 62.71 211.19 9.27 4.53 7.93 15.24 8.28 45.25 3,91 1.84 6.944 14 41 10.27 37.39 41.87 17.59 54.08 99.03 81.26 293.83 0.00 0.00 25.56 34.65 39.11 99.32 17.36 7.60 34M 50.42 34.7E 13417 17.36 7.60 49.64 85.07 73.82 233.49 24.51 9.99 4.44 13.96 7.44 60.34 Note: Water injection volumes do not include Cretaceous injection Note: Water injection volumes do not include Cretaceous injection Wells had both produced and seawater injection Dedicated produced water injectors EXHIBIT 4 ENDICOTT OIL POOL WATERFLOOD PERFORMANCE OVERVIEW Injection Well Data (through December 31, 1991) TARGET INJECTIVITY CUMULATIVE WELL NAME RATE (MB Dl INDEX INJECTION (BPD/PSI) (MM@1) START-UP DATE MPI Reservoir Area 1-37/P-24' 3.0 3 4.89 April 1988 1-69/V-19 11.0 4 2.13 November 1990 2-16/M-16' 5.0 17 9.56 March 1989 2-22/L-14' 5.0 8 4.65 May 19 1989 2-34/P-14' 3.0 6 4.27 November 1989 2-44/R-12" 8.0 4 9.38 April 1989 2-64/U-10 5.0 1 0.04 February 1991 2-70/U-15" 12.0 17 6.36 July 1989 5-02/SD-10" 4.0 6 11.72 February 1988 SDI Reservoir Area 1-43/P-26' 40.0 18 16.98 April 1989 3-07/N-28 20.0 38 12.09 April 1989 3-41/K-39 40.0 50 20.20 May 1989 3-45/M-39 10.0 12 8.25 September1988 4-02/Q-28 0 12 6.83 May 1988 4-04/T-26 18.0 18 5.84 March 1990 4-14/R-34 18.0 50 8.81 September 1989 4-48/K-43 10.0 8 2.90 December 1990 Total Injection 212.0 134.9 Seawater 148.0 101.5 Produced Water 64.0 33.4 Note: Water injection volumes do not include Cretaceous injection Wells had both produced and seawater injection Dedicated produced water injectors EXHIBIT 5 ENDICOTT PHASE 1 WATER INJECTION WELLS INJECTION RATE, WELLHEAD PRESSURE & INJECTIIVITY INDEX VERSUS INJECTION TIME ( START-UP THROUGH DECEMBER 31, 1991 ) STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 1-37/P-24 04/10/88 -- 12/81/91 0 N U N 0 a m x- w z z zm 0 0 0 0 M � N v a x 3 a= a 0 0 0 e M O � O a n m- w Qo � o 0 � o Z- N w Q o I 3„ w I N o Ld tD 1989 1990 1991 Q M O LZ z Zo Sea Water (blue ///) Prod Water(preen M)l IMI 4ae red XXX Dr One (purple ear �w STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 1-43/P-26 04/10/88 --12/81/91 0 m ^ o Ln b a m a x 'P w Z Z Z � 0 CL 4y? rl 0 a 0 M _ O C d 3 Vr O Q � O O 0 0 0 b I� a o m a 0 wo � Y Q K Z — o � Q n � 3 Q I o UJ (0 1989 1990 1991 Q M 00 Z �Qp 3ee Water (blue ///) Prod Water re en \\\) MI Gas red XXX Dry Gas (purple ###) �w 1 STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 1-69/V-19 04/10/88 -- 12/31/91 r a 0 0 d x 0 z f o 0 a 0 �o � a as v EL x 3 N o i 0 0 0 0 0 N O 0 O an m^ w Qo o � e 2 ^ � N � I � w Q e � 3N a I M o w 1989 1990 1991 Q M p0 Z0 1160 Water (blu lProci Wet* IMI Dee red XXX Dr Gas (purple er � w STATE REPORT Injection Rate / Avg Whp / In) Index WELL 2-16/M-16 04/10/88 -- 12/81/91 0 e a O Y a m X w 0 Z o N z Z O O O O Y O O � M d v0 d o = o 3N O Q O O O O O O O M a o m o o ill J N Q z N 0) O o Q o a 3 w 1989 1990 1991 Q M Z �Qp � 3ea wato JProd Water re s IMI Gas fired XXX) Dry Gas (purple *# 7#) �w STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 2-22/L-14 04/10/88 -- 12/81/91 0 N N a 0 a m 0 x - w O Z Z '^ 0 L JLJ 11 0 0 0 M r� N O a N d 3 a= 0 0 0 0 0 M O a o M o 0 w o N � z' N — o K o wo � Q o � 3 I � o w 1989 1990 1991 Q M 0 O Z �Qp 80a Water blue /// Prod Water re IMI Ciao (red XXX) Dry Gus (purple N0-0 �w M W (0 Q M Z Z � W STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 2-34/13-14 04/10/88 -- 12/31/91 See Water (blue ///)I JProd Water reen \\1 MI Gas (red XXX) Dry Gfle (purple !aR) STATE REPORT Injection Rate ! Avg Whp ! Inj Index WELL 2-44/R-12 04/10!88 -- 12/31/91 m c� o. m X II+� w ? N Z O O O O d O O �O N a ..a a a = a 3N c� aQ 0 0 0 0 0 0 M O a o mo wo QN � I l cV w o 1 7 � o I a M o UJ 1989 1990 1991 Q M 00 Z Qo 8�6 Watef fplu� /1 lProci Water(green \\\ MI Gas red XXX) JDry Cies (purple �rR � w STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 2-64/U-10 04/10/88 -- 12/31/91 a 0 a m X Z z 0 0 0 0 Y O O O �! M N .av d o = o 3� O Q O O O O O O ao mo 0 W Y F- a o: z N � — o �o wo I a� � 3 Q I `* o w LO 1989 7990 1991 M 0 72 Z Z0 3ea Water blue JProd Water re IMI Gas red XXX Dry Gas (purple #—N �w m STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 2-70/U-15 04/10/88 --12/31/91 0 e 19tl9 1990 1991 Baa Water lblu• /I/1 Prod Waterreen \1l IMI Gas (red X JDry Qae (purple gra) w (p Q M =0 Z Z Zp �w 0 STATE REPORT Injection Rate / Avg Whp WELL 3-07/N-28 04/10/88 -- 12/81/91 / Inj Index 189s Water blue /// Prod Water(green \\\1 IMI Gee (red XXX) Dry Gas (purple taa) INJECTION RATE / WHIP / PRESS GRAD / INJ INDEX WELL 3-41/K-39 O 04/10/88 -- 12/31/81 a 0 O p CL m I x W 0 p Z h z Z 0_Aj II m O n H � m a op I ap w N � O O O O O M � O a o VN a x 30 a o e 0 0 °e a m+ W 4e mo N O1 s' I < < c o 3oe y I I � o W cD 1989 1990 1991 Q M p0 Z ZQp Sea Water blue "/ Prod Water (green 1\11 MI Gee (red XX� Dry Gas (purple #fP#) �w STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 3-45/M-39 04/10/88 -- 12/81/91 N 0 O d m X w z Z y� z Z 0 0 0 0 m �o 0 N o a Y a 2 3 � o 0 > o Q n O 0 0 o� 0 n 0 ao m a 0 wo Q� a: zz — o I a' � 3 1 � o UJ iD 1989 1990 1991 Q M O p Z 3ea Water blue /// Prod Water reen \1\ MI Gas (red XXX) Dry Qae (purple Mar MZ0 C STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 4-02/Q-28 04/10/88 -- 12/81/91 0 v ^o aM c CL m m x � W z Z O Z O O O O O O �O �_ MI aai d o = a 3" > O Q O O O O O O O n O n. o mo 0 Wo � Q 0: Z_ N o � o W O 01 < 0 tr 3 Q I �t o w co 1989 1990 1991 Q M 00 Z0 8es Water blue /// Prod Waterroan \\1 MI Gas (red XXX Dry Gas (purple fpt) �w STATE REPORT Injection Rate / Avg Whp I Inj Index WELL 4-04/T-26 04/10/88 -- 12/31/91 0 m = o CL b a m x� w 0 z Z N O O O O M �O O � O d N v d 2 U• o a Q o 0 0 0 0 0 M n ao mo 0 W O r N a z � 0 0 W Oa i � r� 3 Q i I LJ 1989 1990 1991 Q M �z Zo leall Wets(• 7751 lProd Water (Breen 71 IMI G89 red XXX Dr Gas (purple tM>f �w STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 4-14/R-34 04/10/88 -- 12/31/91 G O O n� d b m x W O v 2 �I 0 0 0 M O N O v N d l O IIJIf Q O O P O O O O � O W M 41 W aG 0 z� N w s a G w �C 1989 1990 1991 Q M p O �0 less Wet• (blue lProd Water re IMI Gus red XXX Dr qee ur le aae �w STATE REPORT Injection Rate / Avg Whp ! Inj Index WELL 4-48/K-43 04/10/88 -- 12/31/91 0 a ^ o U) M a 0 a m x� 0 z �o z� 0 9 G e O O O � M d v o A a 3� I c� as 0 a 0 0 0 0 0 M r� a O M O O W O r N Q � Z Y Al N O o 1 1 Q I V o W (0 1989 1996 1991 Q 0 �ae■e ■ •► b • /// Prod Water {green W) MI 4ea red XXX Dr Qes ( ur le aea) i�w STATE REPORT Injection Rate / Avg Whp / Inj Index WELL 5-02/SD-10 04/10/88 -- 12/31/91 0 M En a 0 a x w 1 O Z o Z 0 0 0 0 M � O _ O N N d CL1� lJ_ � o o Q 0 a 0 0 0 M r� ao MQ 0 w o r � K z Z o N � o � w o 0 I ' � o w 1989 1990 1991 Q M p O M 0 lose Water (blue lProd Water reen 1\1 IMI Gas red XXX Dr Gas (purple —00-1fl �w EXHIBIT 6 ENDICOTT WATER INJECTION WELLS BOTTOM HOLE PRESSURE REPORTS 9 BOTTOM HOLE PRESSURE AND RESERVOIR VOIDAGE PLOTS (START-UP THROUGH DECEMBER 31,1991) Report Run Date: 26 -FEB -92 User ID: EDAN036 Page Static Pressure Report. Time Shut-in Hr Test BH TEST DATE Depth Temp PBAR Well Name ---------- DD -MM -YY --------- ss -------- F psia 1-01/J-19 05 -JUN -88 10000.00 ----- 216 ------- 4745.00 28 -JUN -88 10000.00 209 4709.00 19-NOV-88 10000.00 217 4618.00 12 -MAR -90 10000.00 212 4599.00 12 -AUG -90 10000.00 215 4690.00 1-05/0-20 14 -APR -88 10000.00 212 4833.00 1-09/J-18 01 -OCT -87 10000.00 204 4890.00 22-NOV-87 10000.00 0 4813.00 02 -FEB -88 10000.00 212 4788.00 10 -OCT -88 10000.00 212 4628.00 19 -MAR -90 10000.00 218 4638.00 20 -MAR -90 10000.00 218 4667.00 18 -MAY -91 10008.00 220 4924.00 18 -MAY -91 10013.00 220 4936.00 1-21/K-25 30 -APR -90 10000.00 216 4288.00 14 -JUN -90 10000.00 216 3332.00 14 -AUG -90 10000.00 214 3526.00 13 -DEC -90 10000.00 216 3924.00 14 -APR -91 10000.00 213 3915.00 14 -AUG -91 10000.00 0 3500.00 _ 12 -SEP -91 10000.00 216 3905.00 1-25/N-22 30 -SEP -87 10000.00 0 4833.00 ------- - - 23 -MAR -90 10000.00 216 4636.00 w=;1 -27/P-20 02 -SEP -87 10000.00 204 4890.00 29-NOV-88 10000.00 213 4669.00 - -- 1-29/M-25 02 -SEP -87 10000.00 208 4891.00 02 -FEB -88 10000.00 216 4768.00 01 -APR -88 10000.00 216 4790.00 11 -JUN -88 10000.00 220 4726.00 23 -OCT -88 10000.00 211 4644.00 21 -MAR -89 10000.00 215 4636.00 12 -AUG -90 10000.00 217 4707.00 1-35/0-25 05 -SEP -87 10000.00 211 4892.00 21 -JAN -88 10000.00 0 4809.00 25 -APR -88 10000.00 209 4758.00 12 -JUN -88 10000.00 218 4742.00 25 -OCT -88 10000.00 209 4721.00 27 -MAR -89 10000.00 214 4631.00 26 -SEP -89 10000.00 214 4571.00 28 -FEB -90 10000.00 220 4611.00 12 -AUG -90 10000.00 216 4714.00 Time Shut-in Hr Report Run Date: 26 -FEB -92 User ID: EDAN036 TEST DATE Well Name DD -MM -YY ---------- --------- 1-37/P-24 1-39/P-17 1-41/0-23 1-43/P-26 1-45/Q-26 1-47/Q-21 1-49/P-21 1-55/R-25 1-57/R-23 1-63/T-22 07 -JAN -88 15 -AUG -90 02-NOV-90 23 -AUG -88 02 -DEC -88 19 -JUN -89 20 -JUN -89 11 -AUG -90 11 -AUG -90 06 -SEP -87 08 -DEC -88 18 -FEB -90 13 -AUG -90 12-NOV-90 17 -APR -91 16 -DEC -88 24 -OCT -89 01 -JUN -91 05 -SEP -87 17 -DEC -87 03 -AUG -89 26 -FEB -90 12 -MAY -91 12-NOV-91 09 -MAY -89 01 -MAR -90 13 -AUG -90 22 -APR -91 07 -OCT -91 07 -MAY -88 06 -JUN -88 04 -SEP -88 22 -MAR -89 05 -APR -90 12 -AUG -90 07 -JUN -91 28 -DEC -88 01 -JUN -90 14 -AUG -90 08 -JUN -91 09 -JUN -89 04 -APR -90 13 -AUG -90 Page 2 Static Pressure Report Test Depth ss 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.01 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 10000.00 BH Temp F 207 170 182 213 215 216 215 212 212 205 212 214 215 212 212 213 123 207 206 213 203 207 209 210 211 213 213 208 212 203 205 0 206 206 207 209 207 209 206 209 207 205 206 Time PBAR Shut-in psia Hr 4801.00 4694.00 4767.00 4705.00 4609.00 4452.00 4516.00 4677.00 4704.00 4891.00 4702.00 4634.00 4721.00 4690.00 4829.00 4656.00 4578.00 4108.00 4897.00 4631.00 4410.00 4453.00 4229.00 4180.00 4440.00 4557.00 4707.00 4761.00 4898.00 4790.00 4666.00 4544.00 4322.00 4369.00 4266.00 4140.00 4439.00 4369.00 4292.00 4113.00 4311.00 4354.00 4177.00 Report Run Date: 26 -FEB -92 User ID: EDAN036 Page Static Pressure Report Time Shut-in Hr Test BH TEST DATE Depth Temp PBAR Well Name ---------- DD -MM -YY --------- ss -------- F ----- psia ------- 1-63/T-22 10 -JUN -91 10000.00 208 4194.00 1-67/T-20 03 -FEB -90 10000.00 200 3549.00 12 -AUG -90 10000.00 205 4133.00 16 -AUG -90 10000.00 207 4219.00 03 -JUN -91 10000.00 208 4350.00 04 -JUN -91 10000.00 208 4285.00 1-69/V-19 04 -JUN -90 10000.00 206 4117.00 20 -SEP -91 10000.00 148 4700.00 2-04/M-19 28 -FEB -88 10000.00 215 4769.00 12 -JUN -88 10000.00 216 4751.00 03 -JAN -89 10000.00 207 4673.00 13 -JUN -89 10000.00 217 4632.00 12-NOV-90 10000.00 212 4694.00 08 -MAY -91 10000.00 214 4849.00 2-06/J-22 30 -MAR -88 10000.00 218 4849.00 2-08/K-16 07 -MAR -88 10000.00 205 4789.00 20 -OCT -88 10000.00 207 4531.00 25 -MAY -90 10000.00 213 4683.00 25 -MAY -90 10000.01 205 4656.00 23 -MAY -91 10000.00 213 4954.00 24 -MAY -91 10139.00 213 5009.00 _ 18-NOV-91 10000.00 213 4657.00 18-NOV-91 10001.00 214 4725.00 - --_ 2-14/0-16 07 -SEP -87 10000.00 206 4890.00 16 -OCT -88 10000.00 214 4678.00 13 -MAY -89 10000.00 212 4613.00 14 -MAY -89 10000.00 212 4622.00 - 17 -MAR -90 10000.00 214 4627.00 18 -MAR -90 10000.00 214 4605.00 13 -SEP -91 10000.00 0 4901.00 13 -SEP -91 10002.00 0 4836.00 2-16/M-16 09 -FEB -89 10000.00 210 4626.00 11 -AUG -90 10000.00 0 4790.00 2-18/L-16 14 -SEP -90 10000.00 213 4612.00 23 -MAY -91 10000.00 218 4903.00 20-NOV-91 10000.00 213 4657.00 2-20/L-15 20-NOV-90 10000.00 208 2693.00 24 -MAY -91 10000.00 208 1776.00 2-22/L-14 11 -AUG -90 10000.00 0 4740.00 02 -OCT -91 10000.00 181 4626.00 13 -OCT -91 10000.00 183 4650.00 14 -OCT -91 10000.00 183 4647.00 2-26/N-14 29 -JUN -88 10000.00 204 4837.00 Time Shut-in Hr Report Run Date: 26 -FEB -92 User ID: EDAN036 Page Static Pressure Report -S+L�stl - i v 7in.t� iva�' �a.Y�i..J �iL7`ov OAfL . Time 4 Shut-in Hr Test BH TEST DATE Depth Temp PBAR Well Name ---------- DD -MM -YY --------- ss -------- F ----- psia 2-26/N-14 29-JUL-88 10000.00 207 ------- 3718.00 08 -OCT -88 10000.00 209 3320.00 21 -FEB -89 10000.00 210 2894.00 27 -APR -89 10000.00 205 3286.00 07 -FEB -90 10000.00 210 4006.00 12 -AUG -90 10000.00 210 3486.00 16 -MAY -91 10000.00 213 1824.00 2-28/P-19 27 -SEP -88 10000.00 209 4695.00 07 -DEC -88 10000.00 209 4603.00 16 -AUG -89 10000.00 210 4565.00 2-34/P-14 30 -AUG -87 10000.00 206 4892.00 14 -APR -88 10000.00 202 4486.00 2-36/0-14 15-JUL-90 10000.00 208 4647.00 13 -AUG -90 10000.00 210 4710.00 02 -JUN -91 10000.00 206 4790.00 2-42/P-13 09 -FEB -89 10000.00 199 4731.00 08-NOV-90 10000.01 210 4801.00 O8-NOV-90 10000.00 210 4475.00 31-JUL-91 10118.00 215 4735.00 31-JUL-91 9266.00 210 4350.00 2-44/R-12 27 -FEB -88 10000.00 206 4802.00 28 -MAR -88 10000.00 206 4502.00 11 -SEP -88 10000.00 203 4482.00 16 -OCT -88 10000.00 0 4783.00 11 -AUG -90 10000.00 0 3693.00 16 -AUG -90 10000.00 164 4658.00 2-46/Q-15 22 -JUN -89 10000.00 208 4420.00 04 -AUG -89 10000.00 203 4427.00 22 -DEC -89 10000.00 205 4456.00 13 -AUG -90 10000.00 209 4465.00 2-52/5-14 25 -OCT -87 10000.00 202 4900.00 27 -JAN -88 10000.00 205 4784.00 03 -AUG -89 10000.00 202 4456.00 25-NOV-89 10000.00 0 4505.00 O1 -JAN -90 10000.00 207 3695.00 07 -JAN -90 10000.00 208 4218.00 13 -AUG -90 10000.00 208 4500.00 2-58/S-09 05-NOV-90 10000.00 207 4254.00 25 -MAY -91 10000.00 207 4036.00 12 -DEC -91 10000.00 207 4277.00 -S+L�stl - i v 7in.t� iva�' �a.Y�i..J �iL7`ov OAfL . Time 4 Shut-in Hr Report Run Date: 26 -FEB -92 User ID: EDAN036 Page Static Pressure Report Time Shut-in Hr Test BH TEST DATE Depth Temp PBAR Well Name DD -MM -YY ss F psia ---------- 2-62/--17 --------- 07 -SEP -87 -------- 10000.00 ----- 203 ------- 4894.00 05 -FEB -88 10000.00 204 4737.00 13 -JUN -88 10000.00 212 4673.00 27 -SEP -89 10000.00 208 4601.00 26 -FEB -90 10000.00 207 4642.00 02 -SEP -90 10000.00 210 4476.00 04 -SEP -90 10000.00 210 4731.00 04 -JUN -91 10000.00 216 4783.00 06 -OCT -91 10000.00 208 4872.00 2-64/U-10 05-JUL-91 10000.00 192 5991.00 2-68/S-17 22-NOV-88 10000.00 193 4507.00 28 -SEP -90 10000.00 210 4592.00 2-70/U-15 01 -MAY -89 10000.00 199 2854.00 12 -MAR -90 10000.00 124 5289.00 11 -AUG -90 10000.00 0 5013.00 20 -MAY -91 10000.00 134 5308.00 3-01/N-29 10-NOV-87 10000.00 217 4839.00 05 -DEC -87 10000.00 215 4696.00 27 -MAR -88 10000.00 218 4512.00 11 -JUN -88 10000.00 219 4497.00 21-JUL-88 10000.00 214 4495.00 22 -OCT -88 10000.00 211 4524.00 21 -AUG -89 10000.00 216 4421.00 25 -MAR -90 10000.00 215 4505.00 20 -OCT -90 10000.00 218 4427.00 27 -AUG -91 10000.00 214 4646.00 3-05/0-29 06 -DEC -87 10000.00 213 4907.00 30 -MAR -88 10000.00 211 4813.00 26 -MAY -88 10000.00 215 4460.00 23-JUL-88 10000.00 211 4498.00 11 -OCT -88 10000.00 212 4590.00 19 -AUG -89 10000.00 212 4333.00 25 -FEB -90 10000.00 210 4506.00 24 -MAY -91 10000.00 213 4872.00 3-07/N-28 11 -AUG -90 10000.00 0 4629.00 3-09/L-28 06 -APR -88 10000.00 216 4799.00 3-11/M-30 27 -SEP -88 10000.00 215 4503.00 07 -OCT -88 10000.00 214 4541.00 09-JUL-89 10000.00 217 4440.00 28 -OCT -90 10000.00 215 4379.00 28 -OCT -90 10000.01 215 4509.00 28 -MAY -91 9969.60 221 4705.00 28 -MAY -91 9975.10 221 4781.00 Time Shut-in Hr Report Run Date: 26 -FEB -92 Page 6 User ID: EDAN036 Static Pressure Report Test BH Time TEST DATE Depth Temp PBAR Shut-in Well Name DD -MM -YY ss F psia Hr ---------- 3-15/--33 --------- 23 -DEC -87 -------- 10000.00 ----- 214 ------- 4836.00 ------- 0 13 -JUN -88 10000.00 220 4558.00 0 17-JUL-90 10000.00 222 4534.00 0 3-17/J-30 27 -FEB -90 10000.00 218 4597.00 0 09 -OCT -90 10000.00 218 4667.00 0 3-21/L-34 04 -DEC -87 10000.00 212 4736.00 0 23 -MAR -90 10000.00 223 4441.00 0 24 -MAR -90 10000.00 223 4471.00 0 10-NOV-90 10000.00 220 4334.00 0 10-NOV-90 10000.01 220 4411.00 0 30 -JUN -91 10000.00 219 4653.00 0 30 -JUN -91 10111.00 219 4724.00 0 3-23/N-32 03 -DEC -87 10000.00 208 4828.00 0 02-NOV-88 10000.00 212 4138.00 0 14-JUL-89 10000.00 216 4327.00 0 3-25/M-27 15-JUL-91 10000.00 217 4813.00 0 23-JUL-91 10000.00 208 4894.00 0 3-27/M-33 07 -OCT -87 10000.00 213 4892.00 1 17 -APR -88 10000.00 220 4404.00 0 14 -JUN -88 10000.00 218 4440.00 1 24-JUL-88 10000.00 217 4444.00 1 07 -OCT -88 10000.00 217 4478.00 0 23 -MAY -89 10000.00 215 4373.00 0 23 -MAR -90 10000.00 217 4460.00 0 11 -JUN -91 10000.00 220 4670.00 0 3-29/J-32 23 -MAR -91 10000.00 214 4590.00 0 3-33/K-37 _ 13 -SEP -87 10000.00 219 4888.00 0 09 -AUG -88 10000.00 218 4513.00 0 10 -AUG -88 10000.00 218 4469.00 0 28 -MAR -89 10000.00 220 4414.00 0 03 -APR -89 10000.00 216 4405.00 0 10-JUL-89 10000.00 219 4334.00 0 21 -OCT -90 10000.01 221 4430.00 0 21 -OCT -90 10000.00 221 4369.00 0 15 -JUN -91 10070.07 220 4773.00 0 17 -JUN -91 10000.00 221 4724.00 0 17 -OCT -91 10000.00 220 4566.00 0 19 -OCT -91 10000.00 220 4473.00 0 3-35/L-36 13 -SEP -87 10000.00 219 4890.00 0 11-JUL-88 10000.00 221 4438.00 1 09 -OCT -88 10000.00 216 4455.00 0 3-39/J-39 12-JUL-88 10000.00 224 4455.00 0 28 -MAR -89 10000.00 220 4439.00 0 Report Run Date: 26 -FEB -92 User ID: EDAN036 Page 7 Static Pressure Report Time Shut-in Hr Test BH TEST DATE Depth Temp PBAR Well Name ---------- DD -MM -YY --------- ss -------- F psia 3-39/J-39 10-JUL-89 10000.00 ----- 223 ------- 4386.00 23 -FEB -90 10000.00 221 4482.00 3-41/K-39 11 -AUG -90 10000.00 155 4513.00 3-45/M-39 23 -AUG -88 10000.00 219 4331.00 26 -MAR -89 10000.00 185 4991.00 11 -AUG -90 10000.00 0 4719.00 3-47/Q-35 28 -FEB -88 10000.00 216 4488.00 16 -OCT -88 10000.00. 218 4257.00 20 -OCT -88 10000.00 209 4359.00 29 -MAR -89 10000.00 214 4278.00 15 -AUG -89 10000.00 215 4316.00 04 -JUN -91 10000.00 216 4157.00 3-49/J-40 30 -SEP -87 10000.00 221 4891.00 12 -APR -88 10000.00 211 3492.00 15-JUL-88 10000.00 218 4443.00 10 -AUG -88 10000.00 218 4442.00 30 -APR -89 10000.00 219 4332.00 07 -MAY -90 10000.00 226 4415.00 07 -MAY -90 10000.01 226 4644.00 28 -DEC -91 10000.00 217 3328.00 29 -DEC -91 10000.00 215 3366.00 4-02/Q-28 04 -MAY -88 10000.00 205 4785.00 11 -AUG -90 10000.00 0 4656.00 17-JUL-91 10000.00 191 4821.00 4-04/T-26 11 -AUG -90 10000.00 0 4762.00 - - 4-06/Q-32 22 -SEP -87 10000.00 211 4883.00 09 -DEC -87 10000.00 216 4600.00 18 -FEB -89 10000.00 216 4226.00 31-JUL-89 10000.00 212 4220.00 05 -APR -90 10000.00 211 4365.00 13 -DEC -91 10000.00 212 4038.00 4-08/P-27 24 -SEP -87 10000.00 210 4895.00 26 -APR -88 10000.00 211 4542.00 14-NOV-88 10000.00 212 4617.00 23-NOV-88 10000.00 216 4581.00 20-NOV-90 10000.00 212 4566.00 12 -OCT -91 10000.00 214 4773.00 12 -OCT -91 10001.00 215 4691.00 4-14/R-34 14 -AUG -90 10000.00 0 4523.00 19 -AUG -90 10000.00 152 4470.00 30-NOV-91 10100.00 101 4661.00 4-18/S-30 22 -SEP -89 10000.00 0 4381.00 22 -SEP -89 10000.01 0 4362.00 Time Shut-in Hr Report Run Date: 26 -FEB -92 User ID: EDAN036 Well Name 4-18/S-30 4-20/M-35 4-26/0-34 4-28/N-37 4-42/P-38 4-46/N-39 Page Static Pressure Report Test BH Time TEST DATE Depth Temp PBAR Shut-in DD -MM -YY --------- ss -------- F ----- psia Hr 22-DEC-89 10000.00 186 ------- 4289.00 ------- 0 07 -JAN -90 10000.00 205 4284.00 0 07 -APR -90 10000.00 217 4342.00 0 08 -APR -90 10000.00 217 4405.00 0 08 -AUG -90 10000.00 209 4237.00 0 16 -AUG -90 10000.00 211 4405.00 0 12 -JUN -91 9964.00 211 4048.00 0 12 -JUN -91 9968.00 230 4432.00 0 20 -SEP -87 10000.00 208 4891.00 0 12 -AUG -88 10000.00 213 4376.00 0 12 -FEB -89 10000.00 218 4318.00 0 06 -MAR -90 10000.00 220 4340.00 0 07 -MAR -90 10000.00 220 4438.00 0 25 -MAY -91 10112.00 225 4776.00 0 25 -MAY -91 10116.00 225 4771.00 0 12 -AUG -91 9954.00 215 3929.00 0 18 -SEP -88 10000.00 213 4411.00 0 19 -DEC -88 10000.00 213 3975.00 0 21 -FEB -89 10000.00 213 3909.00 0 18 -APR -89 10000.00 208 4019.00 0 22 -SEP -89 10000.00 213 4132.00 0 23 -SEP -89 10000.00 213 3989.00 0 08 -APR -90 10000.00 220 4147.00 0 09 -APR -90 10000.00 220 4030.00 0 11 -AUG -90 10000.00 212 3970.00 0 16 -AUG -90 10000.00 212 3837.00 0 11 -FEB -91 10000.00 0 3872.00 0 25-NOV-88 10000.00 216 4704.00 0 07 -MAY -89 10000.00 217 4015.00 0 08 -MAY -89 10000.00 217 4794.00 0 28-JUL-90 10056.00 0 4386.00 0 28-JUL-90 10065.00 0 4612.00 0 07 -SEP -91 10090.00 0 4854.00 0 07 -SEP -91 10000.00 0 4844.00 0 16 -SEP -91 9000.00 215 4083.00 0 22 -SEP -87 10000.00 212 4896.00 0 26 -JUN -88 10000.00 214 4553.00 0 27 -MAR -89 10000.00 218 3977.00 0 11 -FEB -90 10000.00 217 4272.00 0 08 -APR -90 10000.00 216 4143.00 0 10 -AUG -90 10000.00 215 4080.00 0 12 -AUG -91 10000.00 216 3643.00 0 12 -AUG -90 10000.00 217 4247.00 0 Report Run Date: 26 -FEB -92 User ID: EDAN036 Page 9 Static Pressure Report Test BH Time TEST DATE Depth Temp PBAR Shut-in Well Name DD -MM -YY ss F psia Hr ---------- 4-46/--39 --------- 13 -AUG -91 -------- 10000.00 ----- 215 ------- 3877.00 ------- 0 28 -AUG -91 10000.00 217 4005.00 0 4-48/K-43 11 -SEP -90 10000.00 224 4324.00 0 4-50/K-41 29 -APR -90 10000.00 221 4977.00 0 29 -APR -90 10000.01 221 4426.00 0 25 -JUN -91 10080.00 228 5111.00 0 01-JUL-91 10083.00 224 4460.00 0 5-01/SD-07 27 -MAR -88 10000.00 211 4812.00 0 10 -AUG -90 10000.00 214 4714.00 0 5-02/SD-10 11 -AUG -90 10000.00 0 4660.00 0 15 -AUG -90 10000.00 143 4693.00 0 SUBZONE 2A MPI CUMULATIVE VOIDAGE CUM ma OCT87 JAN88 APR88 JUL88 OCT88 JAN89 APR89 JUL89 OCT89 JAN90 APR90 JUL90 OCT90 JAN91 APR91 DATE BP EXPLORATION P P91 5000 -Icy 4700 : � 1', 4500 4400 4300 4200 JUL91 OCT91 JAN92 SUBZONE 2B MPI CUMULATIVE VOIDAGE CUM MRH 00T87 JAN88 APR88 JUL88 OCT88 JAN89 APR89 JUL89 OCT89 JAN90 APA90 JUL90 OCT90 JAN91 APR91 DATE BP EXPLORATION P PSI 5000 4900 Fl - 4700 4600 4500 4400 4300 4200 J1.11-91 OCT91 JAN92 CUM Aria 4000 3000 2000 1000 0 -1000 IPT1I61( -3000 -400C OCT87 JAN88 APR88 JUL88 OCT88 JAN89 APR89 JUL89 OCT89 JAN90 APR90 UL90 OCT90 JAN01 DATE SUBZONE 3A MPI CUMULATIVE VOIDAGE P PSI 5000 BP EXPLORATION 4900 ,:ml 4700 4500 4400 4300 4200 APR91 JUL91 OCT91 JAN92 CUM MRS 13000 12000 11000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 SUBZONE 3B/3C MPI CUMULATIVE VOIDAGE P PSI 5000 E. mm 4700 4600 4500 4400 4300 EKpii7 4100 0{ 14000 OCT87 JANS8 APR88 JUL88 OCT88 JAN89 APR89 JUL89 OCT89 JANBO APROO JUL90 OCT90 JAN91 APR91 JUL91 OCT91 JAN92 DATE BP EXPLORATION CUM WE 6000 5000 4000 3000 2000 1000 0 OCT87 JAN88 APR88 JJL88 OCTSS JAN89 APA89 JUL89 00T89 JAN90 APROO JUL90 OCT90 JAN91 DATE SUBZONE 3A NIAKUK CUMULATIVE VOIDAGE BP EXPLORATION P PSI 5000 4900 4800 4700 .=ml 4500 4400 4300 4200 APR91 JUL91 OCT91 JAN92 CUM MRS 7000 4000 R11� 2000 1000 0 OCT87 JAN88 APR88 JUL88 OCT88 JAN89 APR89 JUL89 OCT89 JAN90 APR90 JUL90 00T90 JAN91 DATE SUBZONE 2A SDI CUMULATIVE VOIDAGE BP EXPLORATION P PSI 5000 4900 4700 4600 4500 4400 4300 4200 APR91 JUL91 OCT91 JAN92 cum Wa 30000 20000 10000 SUBZONE 2B SDI CUMULATIVE VOIDAGE P P91 5000 4900 4800 4700 4500 4400 4300 01, d I I I I I I I I I . 4200 OCT87 JAN88 APR88 JUL68 OCT88 JAN89 APR89 JUL89 OCT89 JAN90 APR90 JUL90 OCT90 JAN91 APR91 JUL91 OCT91 JAN92 DATE BP EXPLORATION CUM MRS 3000 2000 1000 0 OCT87 JAN88 APS88 JUL88 OCT88 JAN89 APR89 JUL89 OCT89 JAN90 APR90 JUL90 OCT90 JAN91 APR91 JLIL91 DATE SUBZONE 3A SDI CUMULATIVE VOIDAGE BP EXPLORATION P PSI 5000 4900 4800 4700 •:1c 4500 L•LK0 4300 4200 OCT91 JAN92 CUM AIRS 20000 19000 18000 17000 16000 15000 14000 13000 12000 11000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 0 OCT87 JAN88 APR88 JULSS OCT88 JAN89 APR89 JUL89 OCT89 JANSO APR90 JUL90 OCT90 JAN91 APR91 DATE SUBZONE 313/3C SDI CUMULATIVE VOIDAGE BP EXPLORATION P PSI 5000 4900 4800 4700 4600 4500 4400 4300 4200 4100 4000 3900 3800 JUL91 OCT91 JAN92