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1999 Badami
BP EXPLORATION March 30, 2000 Robert N. Christenson, Chairman Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501 Dear Mr. Christenson, BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 E �iJc COW410 SZR RES ENG, RES EN SR ENG 4 E!iG NRO SR GEU GEOw GEOEAS�, S7,AT T E H STAT TECH E I F i'- i In accordance with the requirements of Rule 9 of the Badami Oil Pool Area Injection Order dated August 26, 1998, please find enclosed three copies of the Annual Reservoir Surveillance Report for the field. s The report covers 1999 including the period of warm shut down from February 4th to May 2nd, 1999. If you have any questions about the report please do not hesitate to contact us. Sincerely, Gary Osborne Eastern North Slope Subsurface Manager cc: A. Dube File: AOGCC Part of the BP Amoco Group v E�.0 ,AR 3 1 2000 Alaska Oil & Gas Cons. CommiWw AnchoragO ANNUAL RESERVOIR SURVEILLANCE REPORT BADAMI OIL POOL JANUARY 1999 - DECEMBER 1999 MAR 31 2000 Alaska Oil & Gas Cons. Commisso Anchorage Table of Contents 1. Introduction 1 2. Summary Of Reservoir Management And Enhanced Recovery 2 3. Voidage Balance 3 4. Reservoir Pressure Monitoring 3 5. Production Logging 3 6. Special Monitoring 3 7. Evaluation Of Well Testing And Allocation 4 8. Future Development Plans 4 9. Review Of Annual Plan Of Operations And Development 4 Appendices Figure 1 Field Production History Figure 2 Field Gas Disposition History Figure 3 B1 -11A Well Test History Figure 4 B1-15 Well Test History Figure 5 B1-18 Well Test History Figure 6 B1-25 Well Test History Figure 7 B1-28 Well Test History Figure 8 B1-36 Well Test History Figure 9 B1-14 Gas Injection History Figure 10 B1-21 Gas Injection History Table 1 Badami Well Disposition Table 2 Badami Production/Injection - Surface Units Table 3 Badami Production/Injection - Reservoir Units Table 4 Badami Pressure Monitoring Summary Table 5 Badami Well Testing Frequency Summary ANNUAL RESERVOIR SURVEILLANCE REPORT BADAMI OIL POOL APRIL 1999 - MARCH 2000 1. Introduction As required by Rule 9 of the Badami Oil Pool Area Injection Order, dated August 26, 1998, this report provides a summary of the enhanced oil recovery operations at Badami. It will address the following, • Progress of the enhanced recovery project and reservoir management summary including engineering and geological parameters. • Voidage balance by month of produced fluids and injected fluids. • Analysis of reservoir pressure surveys within the pool. • Results and where appropriate, analysis of production and injection logs, tracer surveys and observation well surveys. • Special monitoring. • Evaluation of well testing and allocation, Future development plans. • Review of Annual Plan of Operations and Development. 2. Summary of Reservoir Management and Enhanced Recovery The total volume of oil produced from the Badami reservoir during 1999 was 1,150,367 stb. 1,697 mmscf of associated and free gas was produced with the oil and an additional 683 mmscf was purchased from Endicott. 1,718 mmscf of gas has been injected. 3560 bbls of formation water was produced. 10 wells including the disposal well have been drilled and completed to date. Well disposition is detailed in Table 1. At the beginning of 1999, Badami was on production with 5 producers making just under 3000 bopd. However, due to the risk to the export pipeline resulting from the diminishing production rate and the low ambient winter temperature, the decision was made to temporarily shut down Badami. Thus on February 4, 1999, the production at Badami was shut in and gas from Endicott was used to displace the oil export pipeline. During the 3 month shut in period, the Endicott gas was used as the source of fuel at Badaml. This period allowed the reservoir pressure to build-up and provided the opportunity to carry out remedial well work. The time was also taken to recalibrate seismic attributes, revise the geostatistical model, and update the OOIP numbers. This work resulted in the OOIP being reduced from 486 mmstb to 165 mmstb for the Phase I Development area. The area surrounding the current well stock contains 51 mmstb of this revised OOIP with only 27 mmstb being accessible through connected reservoir, The field was brought back on-line on May 2, 1999. At this time, gas injection was established in the two injectors, B1-14 and B1-21 on a continuous basis with the gas supply from Endicott supplementing produced gas. Gas injection continued through the remainder of 1999 despite the loss of the 6" utility pipeline from Endicott and limited injection due to significant downtime of the compressors. The loss of the 6" utility pipeline in November was due to a weld crack caused by wind induced vibration. Producer 81-36, the only new reservoir penetration made during 1999, was drilled in May 1999. This well was drilled below the main Brookian horizon to test 2 deeper prospective reservoirs. Gas was tested in the Kekituk zone, and only very low rates of oil were produced from the Killian zone. However, in this well 120+ft of reservoir in the Brookian reservoir was penetrated, the thickest interval yet encountered in any of the Badami wells. The production and gas disposition history of the field during 1999 is shown in Figure 1 and 2. Figures 3 through 8 present the well test history of the producers. Most of the producers showed some recovery of productivity following the warm shut down. Figures 9 and 10 show the gas injection history. Connectivity between producer/injection pairs 131-15/131-14 and 131-18/B1-21 has been confirmed through production data and is evidenced by the increasing GOR trend towards the end of the year. Production rates also show less decline in these wells while the GOR continues to increase. mECEIVEID f AR -0 7 2000 Al*a Lail & Gas Cats. Comm�aton Anchorage 3. Voidage Balance Production and injection volumes, and reservoir voidage by month are detailed in Tables 2 and 3. Cumulative voidage through December 31, 1999 is negative 2,058,383 reservoir barrels. 4. Reservoir Pressure Monitoring Details of the bottom hole reservoir pressure monitoring that has taken place at Badami during 1999 is listed in Table 4. Additionally, attempts were made to monitor the reservoir pressure build up during the 3 month warm shut-in period by measuring closed in well head pressures and extrapolating to bottom hole conditions. Unfortunately these results were very poor due to the inherent errors in the methodology. S. Production Logging In addition to the bottom hole pressures listed in Table 4, an injection log was run on B1-21 on November 14, 1999. The flowmeter showed that gas is entering all perforations. An injection log was also attempted on B1-14 at the same time but aborted due to the well head pressure being higher than the working pressure of the tools. 6. Special Monitoring As part of the program of production performance monitoring to confirm whether we had connectivity between the two gas injectors and their associated producers, gas samples at the producers were taken and were analyzed for CO2 content. The injected gas was supplemented with Endicott gas which contained roughly 12% CO2, and it was believed that an increase in the CO2 content at the producers would indicate positive connectivity within the reservoir. It transpired that the production performance indicated positive connectivity before analysis of the gas did partly because of the ambiguity of the results of the gas analysis. 7. Evaluation of Well Testing and Allocation The summary of well testing frequency for each of the Badami wells is presented in Table S. The rapid rate decline seen in all of the wells caused the production well testing frequency to be much higher than would be typical. Daily oil production allocation to each well was the same as that used in 1998, and was accomplished by a method of pro -rating the oil rates such that the total oil produced from all of the wells equaled that recorded by the fiscal pipeline meter while honoring the well tests. S. Future Development Plans At this time, there are no further economic development plans for the Brookian reservoir at Badami. Plans are to continue producing with the current well stock. Additional vibration dampeners have been placed on the 6" utility pipeline from Endicott to mitigate further damage caused by vibration. The possibility of successful exploration in the area around the Badami unit may bring forward new options for Badami reservoir. 9. Review of Annual Plan of Operations and Development Despite the poor performance of the wells, the Plan of Operations remains unchanged at this time. Appendices Figures Tables Figure 1 Badami Field Oil Production 16000 16000 14000 12000 10000 E 0 a p 6000 to O x}000 2000 0 m m W W O \ N N N N N N N N N N N N µ .D r O H w N N m r V ID ID r m W r V r V r I ID N N N N N N ID m ID �D lD ID CD a 1O ID LD 1D W 1D ID tD ID ID LD LD �D ID IO ID IO ID ID W ID tD H �D N 10 ID 1D 0 0 0 0 0 0 CD m m m to m lD m LD ID ID LD D m m 1D m lD 10 ID ID ID w O O O Figure 2 Badami Field Gas Disposition 35.0 30.0 Fuel Flare Injection 25.0 Endicott co n 10.0 5.0 @ @ w Y Y Y Y N W A S!1 O1 V m w Y Y Y Y N W ti W W O µ N \ N \ N \ N \ N \ N N \ N \ N \ N p µ N \\ N \ N N w Y O F+ %D %D N F+ N N N w w m w lD w Y w ,D Y w %D w w w w w w lD w w w w w 'D w w w o w o Y w Y w m o o o o 0 0 @ @ w m w m w m w w w w w w w w w w w w w w w o 0 0 Figure 3 Well Test Plot WELL: B1-11A/BADAMI Dates from 01/01/1999 to 12/31/1999 26 10090 2011 8000 7000 6000 5000 4000 3000 1000 goo too 700 600 5ffk 400 300 100 90 so 70 60 so 40 30 20 I . . . . . ... . . . . . . I- - - - - - - --- - - - - - - - I- - - - - - _1483_ - - - - - - -- - - - - - - - -- - - - - - ----------- 11— ........ —..— ------- ----------- �; -------- ------------- - ................. * ------------------------------------------------------------------------------ ...............--------------------------------------------- --------------------- - ---------- ----------------- .............. ----------------------- " ------- -------------- . . . ... . . . . . . . I. . . . . . ... . . . . . . . - - - - - - - - - - - - - - . . . . . . . - - - - - - - - - - - - - - - - . . . . . . . . . . . . . . . - - - - - - - - - I - - - - - - - -- - - - - - - I - - - - - - --- - - - - - - - I- - - - - - - - - - I.- - - - . . ... . . . . . . . I I - - - - - - - - I . . . . - - --- - - - - - - - - - - - - - - - -- -- I. . . . . . . . I. . - --- - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - -- - - - - - - - . . . . . . . . ---- --------- --- -- --- ----------- --------- ------- --- . . . . . . . . . . . . . . . . - ---------------- -- ----------- - ....... - - - - - - - I - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - 1 1 It, . .. . . . . . . . . eo o mho . . . . . . . . I. . - - - - - - - - - - - - 0"'D I* -- - - - - - - - <� : 1 1-1 "IV - - - - - - - - - - . . . . . . . . . . . . . . .. -- - - - - - - - - I z - - - - --- - - - - - - - -- - - - - - - - - - -- -- - - - - - - - - - - - - - - . . . . . . . . Io I I i F M A M J J A S 0 1998 1999 120 100 80 00 40 20 0 - - - - I - - - - - - --- - - - - - - --- - - - - - - --- - - - r - - - - - - - I - - - - - - - - - - - - - I - - - - - -- I �-- - - - . - 4 04 44-44 Q .92 99. M Q9-9 Sr ODO . .1..Q got '-9k q Q- - " - P 0 0.9-bI 0�91 -9- '19 . . . . . . . . Ov e "0., - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - --- - - - -- - - - - - - --- - - - - - - - I- - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . . . . . . . . ... . . . . . . . . . . . . . . . . . .. . . . . 4I - - - - - - - - 0 ago QQQQ A M J J 4 S "GQMOm 0 1998 1999 WT Gross Fluid G.Q.R. Man, Pressure W51:57 March 29 2000 In oil Rate Gas Uft mMan. Temp. CPE V1.2.04 9 Def/Meas,': ............... ... .............. Figure 4 Well Test Plot WELL: B1-15/BADAMI Dates from 01/01/1999 to 12/31/1999 -A . . . . . . . . . . M MR, M� n 10005 900 8000 7000 6000 5000 4000 3000 n U.- 1000 900 boa 70C 60C 50C 400 30C 20C OO $0 40 30 20 ---------------------------- ............... ------------ ---------------------------------- --------- ---------------- --------------------------------------- ---------------------- ................ ----------- -------- ------------- I - - - - - - - --- - - - II - - - --- - - - - - - - -- - - - - - - - I - - - - - - - - 7 - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - I - - - - - - - - - - - - - - - - - - - - - - - -1-- - - - - - - - - - - - - -- - - - - - - -- - - - - - - --- - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - --- - - - - - - - --- ------- ----------------- ---------- - -- - - --- ------- ------------- .. ..... ------- ---- .......... ---- -- - - ------------- -- - - -------- ----------- ------ --- -- ----- -------------- ------ I ....... ----- .... -------- ... ---- - -- ---------- ----------- -------- - ----- -- ----------- + ---------- I - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - .m. . . .- - - - - - - - - - - - - - - - . . . . . . . . . . . . . . 0 111!� . 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O CO - I o . . . . .... . . . . - - - - - - - -- - - - - - - - - - - - - - - - - to 1 F M A M J J A S 0 N D 1996 too 120 - - - - - - - - - - - - - - - --- - - - - - - --- - - - - - - - - - - - - I . . . . . . . - - - - - - - - - - - -- - - - - - - - . . . . . . . . 100 ... . . . . . . ... . . . . . .Q --v M Q. v '-0- 4- - - 60 - - - - - - - - - - - - - - - - - - - - . . . . . . . .•- - - - - - - - - - - - - - - - - - - - . . . . . . . . . . . . . . . . . . . . . ... . . . . . . w- - - . . . . . . - - - --- - - - - - - --- - - - - - --- - - - - - - - -- - - - - - - - -- - - - - - - - - - - - - - - - - -- - - - - - - - -- - - - - - - -- - - - - - - - - 40 - - - - - - 2 - - - - --- - - - - - - - -- - - - - - - - - - - - - - - - -- - - - - - - - - - - - - 2 - - - - - - - - 20- - - - - -- - - - - - - --- - - - - - - - -- - - - - - - --- - - - - - - - - - - - - - - - - - - - - L - - - - - - - - - - - - - - - - - - - - - - - - - - - I I OL I I I J F M A M j j A s 4;00 0 QD 0 400 QQ 0 "0 N 1998 1 W? WT Gross Fluid G.O.R, • Man. Pressure OA:S2M March 29 2000 1 Ei 104 Rate Gas Lift m Man. Temp. CPE V1.2,04 9 i, i�IIII-!I!-!"'---. , WC Def/Meas. .t Figure 5 Well Test Plot WELL: B1-18/BADAMI Dates from 01/01/1999 to 12/31/1999 2$ 'G P{�S �:�.ii.(7ii!i:li +{.�hi're. 7ffl 0 20000 t000C 900( 800( 700( 800( 500( 400( 300( 200C 100C 90C BOC 70C BOC 50C 40C 30C 200 100 80 ea 70 60 30 20 19 r99e 120 100 e9 $0 40 20 0 1999 _ , . - _ _ _ _ . _ _ ,. _ - - - - - _ -- _ -- - _ _ r - - - - - - - - - - - - - - - - - - - - - - -, _ - - _ _ _ _ I _ _ _ _ , _ 4444 944. 4 -v 4_4Q - 1-t- QQ- Q 4. .9-111 dY 4 - _4 - - - 4 4 .4_ _ _ 4. _ - - - . . - . - - - _ - . - - _ , - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ,- - - - - - - - , - �4' . . . . . . . . • . .4 - - - - - - , - - - - • - - - - - - - - - - I - - ^ - - _ . . . - . . - - - • . , - - - - - - - - - • - - - - - - - - - - - - - , - - - 4 4 - 4 4P - tt - - _ _ _ _ _ _ _ _ _ ... _ _ _ _ _ - . . - . _ - - _ _ - _ . - - _ _ - _ - _ - _ . - . - _ _ _ _ _ _ _ _ _ _ _ • 4 4. 4 ?-9 - 4, _ , . _ _ _ _ _ _ _ _ _ _ _ _ _ . . . . . _ . . _ '. . _ - - . - - e - _ - . _ - . J - - - - - - - 1 _ _ _ 4 . . . . . _ . _ _ _ J F M A M J J A S o ti n 1994 1999 WT ' ,• c I + } J - - - . - - - - - - - - r. _ . . . . . . - - - . - - _ - - - • _ _ . . -� ,_ . . . . _ _ ... _ . . . . . _ _ . _ _ ,- - - - - _ - ---- - - - - - ' - - - - - . _ . _ • - ., - - - - - - - • - - _ .fit I . _ _ - _' • _ - ' . _ - , • - _ - • _ - , - _ _ ' _ r � _ _ , _ , _ _ . ' . - _ - } - - - - _ _ , _ . _ , _ _ _ _ _ _ _ _ _ _ _ _ , _ _ _ _- __ __ _ __ _ __ _ _ _ _ _ _ _ __ __ _ - - . ....._.r _ March 29 2000 ♦_ ♦_ ♦• ♦ ♦ Oil Rate • Gas Lift m Man. Temp. �• WC Def/Meas. #♦ t_ ♦- ♦ �♦_ �#_N • -- - - N #♦ ♦♦ M♦ #♦ , .6 mdo mY _ : : :.: : : : : :.. $4D: 6mm .�Os :¢am:m4Cfm mmm am : : : : : : m m tea: so_ abohm armZ9 _ Q ai: ° ° _ : : : . : m a 1999 _ , . - _ _ _ _ . _ _ ,. _ - - - - - _ -- _ -- - _ _ r - - - - - - - - - - - - - - - - - - - - - - -, _ - - _ _ _ _ I _ _ _ _ , _ 4444 944. 4 -v 4_4Q - 1-t- QQ- Q 4. .9-111 dY 4 - _4 - - - 4 4 .4_ _ _ 4. _ - - - . . - . - - - _ - . - - _ , - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ,- - - - - - - - , - �4' . . . . . . . . • . .4 - - - - - - , - - - - • - - - - - - - - - - I - - ^ - - _ . . . - . . - - - • . , - - - - - - - - - • - - - - - - - - - - - - - , - - - 4 4 - 4 4P - tt - - _ _ _ _ _ _ _ _ _ ... _ _ _ _ _ - . . - . _ - - _ _ - _ . - - _ _ - _ - _ - _ . - . - _ _ _ _ _ _ _ _ _ _ _ • 4 4. 4 ?-9 - 4, _ , . _ _ _ _ _ _ _ _ _ _ _ _ _ . . . . . _ . . _ '. . _ - - . - - e - _ - . _ - . J - - - - - - - 1 _ _ _ 4 . . . . . _ . _ _ _ J F M A M J J A S o ti n 1994 1999 WT Gross Fluid —*— G.O.R. ♦ Man. Pressure(� Choke Oa:52:10 March 29 2000 a Oil Rate • Gas Lift m Man. Temp. �• WC Def/Meas. CPE V1.2.04 Figure 6 Well Test Plot WELL: B1-25/BADAMI Dates from 01/01/1999 to 12/31/1999 25 , I - ;--, ""I 98 1,999 j I - - - - - - - I - - - - . . . . . . . - - - - -- - . . . . . .. . . . - - - - - - - - I . . . . . . . . I - - - - - - - - !000 . . . . . . . . . . . . . ... . . . . . . .. . . . . . . . . . . . . . . . . . . . - - - -- - - - 000 900 600 . ... . . . . . . . .. . . . . . -- . . . . . ... . . . . . . . I - - - - - - - - I - - - - - - - - -- - - - - - --- - - - - - - - - -- - - - - - - - I - - - - - - -- - - - - - - - - - - - - - - - - - - - I . . . . . . . .. . . . . . . - - - - - - - - - - - - - - - - - - I 700 - - - - - - --- - - - - - - - -- - - - - - - --- - - - - - - - . . . . .. . . - - - - - - - . . . . . . .. . . . - - - - - - -- - - - - - - - . . . . . . . . . . .. . - - - - - - Soo- - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - . - - - - - - - - - - - . - - - - - - - - 4CO- 300 - - - - - - - - - - -- - - - . . . . . . . . - - - - - - - -- - - - - - - - 0 0 ff +♦+: •+ -- ♦ *+ 200 . . . . . . . . ... . . - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - 100 70 11 5 - - - - - - - - - - - - - - - - - - - - o; --- - -4 - - - 0 4& : i 10 " - - - - - - - - - - - - - - - - - - - - - - - - - - . . - - - -,W-o . . . .-m- - 5 o4 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - -- - - - - " - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - 0 Lo - - - C O Oo I - _0 ;o I 50 - - - - - - - - - - - - - - --- - - - - - --- - - - - - - --- - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - 4D- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ---"---- .30 - - - - - - - -- - - - - - - - . . . . . . . . .. - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - F M A M i j A S 0 N 106 1999 120 - - - - - - - - - - - --- - - - - - - --- - - - - - --- - - - - - - - - - - - - - - - - - - -1 - - - - - - - - - - - - - - - - - - -- - - - - - - - --- - - - - - - - - - 00 1 1 Be- - - - - - - - - - - - - - - . . . ... . . . . . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - do- - - - - - - -- - - - - - - --- - - - - - - - -- - - - - - - .. . . . . . . . . . . . . . . . .. . . . . . . . - - - - - - . . . . . . . - - - - - - - - -- - - - - - -- 40 - - - - - - - -- - - - - - - --- - - - - - . . . . . . . . . . - - - - - - - - - . . . . . . - - - - - - 20 - - - - - - - J - - - - - - - - - - - - - - --- - - - - - --- - - - - - - - - - - -- - - - - - - - 1 - - - - - - - - - - - - - - 1 - - - - - - - -- - - - - - - - - a =0 on 0 G G) QQQG0Q 99601 so OG;Q. OGG) -QQO 0 ;;Q 0 QQ Q go 00 GGMQQ GM 5 M A M J J A S 0 N D 1999 1999 WT Gross Fluid G.O.R. # Man. PressureChoke 08:52:15 3? March 292000 1--�JCH Rate • Gas Lift bMan. Temp. --e WC IWIMeas, Olt CPE V1.2.04 ....... Figure 7 Well Test Plot WELL: B1-28/BADAMI Dates from 01/01/1999 to 12/31/1999 _� -4 F- 26 A R 5 4 ODOI 78 — — — — 1099 - — -- - — — - — - - 000 - - - - - - - - - - - - - - --- ... . . . . . . . . . . - - - --- - - - - - - - - - - - - - - - - - - - - - - - - -- - - - . . . . . . . . - - - - - - - - - - - - - - - - - - - - - - - - . . . . . . . . . . . . . . 000 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . . . . . . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 000 900 - - - - - - --- - - - - - - - - - - - - - * . .. . . . . . . . . . . . .- . 1 - - - - - - - - - - - - - __ _- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . . . . . . . . - - - - - - - - - - - - - - I - - - - - - - - - - - - - - I - - - - - - - - 100 - - - - - - --- - - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . . . . . . $00 . . . . . . - - - - - - - - - - - - - - - - - - - - - 500 - - - - - - --- - - - - - - --- - - . . . ... . . . .. . . . . . . . - - - - - - - - - - - - - - - I - - - - - - - I - - - - - - - -- - - - - - - - -- - - - - - - - - ... . . . . . . . . . . . . . . . - - - - - - - - - - - - - - - --- - 300 dl -t - - - - - - - - - - -- - - - - - - - - - - - . . . . . . . - - - - - - - - • 4. •N N + •- - - - - - - - - - - - - - - - - - - - 200 . . . . . . . . Ip 100 0 . . . . . . . - - -- - - - - - - --- - - 4 . . - - - - - - - - - - - - - -. . . . . . . . . . --.. . . . . . . - - - - - - - - - - - - - - - - - - - - - - - - - - 60 60 . . . - - - - - - . . . . . . . . . . - - - - - - - - - - - - - - - - - - - - - - . . . . . . . . . . . . 40 - - - - - -- - - - - - - --- - - - - . . •. . . . . . . . . . .. . . . . . . . . . . . . � - -- - - - - - - - -- - - - - - - - - - - - 30 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - I - - - - - - - - - - - -- - - - - - - - - - - - -- - - - 10 9 J A 5 O N D 1898 1909 120 - - - - - - I - - - - - - --- - - - - - - --- - - - - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - '00 � 1 9 aq -ft - - - - - - - - - - - - - - - - - - - - - - - -- 94 1 9 9 9- - - - - - - - - - - * 80 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -•- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 00 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - - - - - - - -- - - - - - - --- - - - - - - - . . . . . . . . .. . . . . . . . . . . . . . . . - - - - - - - - - - - - - - - - - - - - - - - - - - - - 20 - - - - - - - . . . ... - - - --- - - - - - - - . .. . . . . . L . . . . . . . J . . . . . . . j - - - - - - - - - - - J - - - - - - - - 0 0, 000'Q 0 0CO 0 00 M Q 0 A 9 0 N (998 1909 WT -Gross Fluid G.O.R. • Man. Pressure 08:52:22 March 292000 9 �Oil Rate Gas Lift 0 IMan, Tamp, CPE V1.2,04 Def/Meas. ...... . .................. ...... ....... 10000 8000 7000 6000 Afflik 4000 3000 2000 i000 son 800 700 600 PVT. 400 300 200 100 90 so 70 60 ffi 40 30 20 Figure 8 Well Test Plot WELL: B1-36/BADAMI Dates from 01/01/1999 to 12/31/1999 - - - - - - - I - - - - - - --- - : - - - - -- - - - - - - --- - - - - - - - -- - - - - - - _199a - - - - - --- - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - -- - - - - - ; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - --- - - - - - - --- - - - - - - --- - - - - - - -- - - - -.1 - - - - - - - I I -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - -- . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . - - - - - - - - - - - - - . . + + - - - - - - --- - - - - - - -- - - - - - - - -- - - - I - - - - - - - 2 - - - - - - - - - - - - - - - - - . . . . . . . 4 44- - - - - - - - - - - - - - - - - - - - --- - - - - . . . . . . . . . ... . . . . . . .. . . - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - -- - - - . . . . . . .. . . 4, . . . . . . . . . . . . . . . . . . . . . - - - - - - - -- _.e :........ 0 "47 ;0- V 4* 4P 0 S* + 44 #4 '* : + - - - - - - - - I - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - . . . ... . . . . . . . . . . . .. . . . - - - _' - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - . . . . . . . 4r - - - - - - - - - - - - _¢- - . . . . . . - --- - - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - I - - - - - - - - - - - - - --- - - - - - - - - - - - -- - - - - - - - - -- - - - - - - --- - - - - . . . . ... . . . . . . . . .. a. - - - - - I I . . . . . . - - - - - - . . . . . . . . . . . . 10 1998 J P M A M i A S 0 N 1999 120 - - - - - - - - - - - - - -- - - - - . . . . . . - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - too- - - - - - - -- - - - - -•... . . . . . . . 40- - - - -- - - - - - - - - - - - - - - - - so- - - - - - - - - - - - - - - - - - - - -- - -, - - - - - - - - - - - - - -- - - - - - - -- - - - - - - - - - - - - - - - -4400 . ... . . . . . . . . . . . . . . 40 - - - - - - - -- - - - - - - --- - - - - - - - -- - - - - - - --- - - - - - - - - - - - - - - - -- tr I I 90' . " - - - - - - . . . . . . . .. . . . . . . . . - - - - - - - - - - - - - - - - - - - - - 1 t - - - - - - - - - - - - - -* - - - - - - 0 F M A M GJ Go Q 0 a (;Q Q? 0 4 GQQQQ QD QF 0 G QDGDQGG. 00GOO" N 9 1998 100 WT Gross Fluid G.O.R. Man, Pressure Choke QW -L 08:5227 March 292000 1--R--10il Rate w Gas Lift mMan. Temp. WC Def/Meas. .... . ........... CPE V 1.2.04 1610 MID1110 a 4000 a a� a Figure 9 B1-21 Gas Injection History .o s 2000 3 1000 5/1/1999 6/1/1999 7/2/1999 8/2/1999 9/2/1999 10/3/1999 11/3/1999 12/4/1999 .m U 7.0 6.0 E 5.0 C 4.0 U V 3.0 2.0 1.0 5000 CL 4000 a� a C 3000 U U C w t 2000 w 3 1000 0 5/1/1999 Figure 10 BI. -21 Gas Injection History Wh Pres Avg 'Inj Rate 6/1/1999 7/2/1999 8/2/1999 9/2/1999 10/3/1999 11/3/1999 12/4/1999 16.0 14.0 12.0 I" U 10.0 E E 4J 8.0 c O a+ U �1 6.0 .0 M m C7 2.0 we] Table 1 Badami Well Disposition Well Completion Disposition Comment Date B1 -11A 3/4/98 Preproduced injector, Producer 8/24/98 to present; cased and prop currently being cycled with 131- fracced. 25. B1-14 5/1/98 Injector, cased. Injector 8/24/98 to 9/29/98. Producer 9/30/98 to 11/29/98. Injector 9/30/98 to present. B1-15 7/31/98 Producer, trilateral Dedicated producer. Supported open hole. by injection from 131-14. B1-16 6/13/98 Preproduced injector, Injector 8/24/98 to 9/25/98. cased Producer 9/26/98 to 10/21/98. Currently shut in waiting possible workover or side track. B1-18 4/3/98 Producer, cased and Dedicated producer. prop fracced. B1-21 1/6/98 Preproduced injector, Producer 8/24/98 to 11/30/98, fracced noproppant then converted to injector. B1-25 11/20/98 Producer, unilateral Unilateral open hole dedicated open hole. producer. Currently being cycled with 131-11A. B1-28 10/20/98 Producer, trilateral Trilateral open hole dedicated open hole. producer. 61-36 5/23/99 Producer. Dedicated producer. Table 2 BADAMI PRODUCTION / INJECTION - SURFACE UNITS 1999 PRODUCTION Jan Feb Mar April May June July Aug Sept Oct Nov Dec 1999 Total Oil (stb) 102,653 9,776 0 0 142,459 153,123 164,239 148,483 113,868 120,339 103,933 91,494 1,150,367 Associated Gas (mscf) 60,155 5,729 0 0 83,481 89,730 96,244 87,011 66,727 70,519 60,905 53,615 674,115 Free Gas (mscf) 5,075 237 0 960 -3,305 11,695 31,810 106,890 174,331 269,161 221,144 204,733 1,022,732 Water (stb) 196 808 0 0 1,112 0 280 173 380 0 264 347 3,560 2,850,774 1999 INJECTION Water (stb) 0 0 0 0 0 0 0 0 0 0 0 0 0 Gas (mscf) 2,855 0 0 0 62,844 76,333 130,789 272,180 292,472 376,152 292,909 211,781 1,718,315 1,718,315 Note (1) Gas produced in April was associated to wellwork on gas injector 61-14. (2) Per a discussion between Jack Hartz and Anna Dube on 3/22/00, an average solution GOR of 586 was determined using production data from 8/98 to 2/99. In using this assumption, there are months when production from lower GOR wells leads to overestimating associated gas. In order to match metered rates, free gas volumes are shown to be negative. (3) Volumes of produced water are reported here although they are not reported in other production allocation reporting due to not being of significant volume and difficult to allocate to individual wells. Volumes are reported For the month the water is removed from the separator and sent to the disposal well. (4) The gas produced in April was associated to wellwork on the injectors. Table 3 BADAMI PRODUCTION / INJECTION - RESERVOIR UNITS 1999 PRODUCTION Jan Feb Mar April May June July Aug Sept Oct Nov Dec 1999 Total Oil (rb) 133,449 12,709 0 0 185,197 199,060 213,511 193,028 148,028 156,441 135,113 118,942 1,495,477 Free Gas (rb) 2,961 138 0 560 -1,928 6,823 18,560 62,366 101,715 157,044 129,028 119,453 596,721 Water (rb) 198 816 0 0 1,123 0 283 175 384 0 267 350 3, 596 All fluids (rb) 136,608 13,663 0 560 184,392 205,883 232,353 255,568 250,127 3I3,485 264,406 238,745 2,095,794 1999 INJECTION Water (rb) 0 0 0 0 0 0 0 0 0 0 0 0 O Gas (rb) 1,666 0 0 0 36,667 44 537 76,310 158,806 170,645 219,469 170,900 123,565 1,002,565 All fluids (rb) 1,666 0 0 0 36,667 44,537 76,310 158,806 170,645 219,469 170,900 123,565 1,002,565 Voidage (rb) -134,942 -13,663 0 -560 -147,725 -161,346 -156,043 -96,763 -79,482 -94,016 -93,506 -115,180 -1,093,229 Oil Formation Volume Factor, Bo (1) 1.300 rb/stb Gas Formation Volume Factor, Bg (2) 0.000583 rb/scf 0.003276 vol/vol Note (1) Bo from Average of Badam41 and Badami#5 (lower sand) PVT analysis. (2) Bg calculation based on gas composition of sample taken 9/18/98 Reservoir temperature 1850f Reservoir pressure 6400 psi Table 4 Badam'r Pressure Monitoring Summary Well Date Operation Comment B1 -11A 12 -Apr -99 Pressure static Unable to run static; hydrate plug at 2600 ft 81-14 31 -Mar -99 Pressure static Pressure increasing @ 1 psi/hr. 5350 psi @ 10,500 ft tvdss 81-15 12 -Apr -99 Pressure static 4934 psi @ 10,500 ft tvdss B1-18 11 -Apr -99 Pressure static 2795 psi @ 10,500 ft tvdss 81-21 18 -Dec -98 Set downhole gauge B1-21 15 -Jan -99 Pulled downhole gauges Final Pressure was 3625 psig at XN de th 8169 ft tvdss B1-21 5 -Apr -99 Pressure static 4465 psi @ 10,500 ft tvdss B1-25 1-A r-99 Pressure static 5567 psi @ 10g500 ft tvdss B1-36 3 -July -99 Pressure build-up BHSIP 4931 psig increasing 2-3 psi/min. Build-up terminated after 6 hrs due to lifting of Alyeska roration. Table 5 Badami Well Testing Frequency Summary Well Number of Well Tests in 1999 Average Well Tests per Month B1 -11A 61 7 B1-15 79 9 81-18 63 7 B1-25 76 8 B1-28 44 5 B1-36 63 7 Note; No testing occurred while field was shut in from x/4/99 to 5/3/99. The average well tests per month is averaged over the 9 months the field was on production.
