Alaska Logo
Department of Commerce, Community, and Economic Development
Alaska Oil and Gas Conservation
Commission
Loading...
HomeMy WebLinkAboutCO 095Conservation Order Cover Page XHVZE This page is required for administrative purposes in managing the scanning process. It marks the extent of scanning and identifies certain actions that have been taken. Please insure that it retains it's current location in this file. o_ � Conservation Order Category Identifier Organizing (done) RESCAN ❑ Color items: ❑ Grayscale items: ❑ Poor Quality Originals: ❑ Other: NOTES: BY: ROBIN ARIA Scanning Preparation BY: ROBIN DIGITAL DATA ❑ Diskettes, No. ❑ Other, No/Type OVERSIZED (Scannable with large plotter/scanner) ❑ Maps: ❑ Other items OVERSIZED (Not suitable for plotter/scanner, may work with 'log' scanner) ❑ Logs of various kinds ❑ Other DATE: lc�7 63 /S/ ,6 TOTAL PAGES _/3 DATE:5-/9�7/63 /S/ Production Scanning Stage 1 PAGE COUNT FROM SCANNED DOCUMENT: ' PAGE COUNT MATCHES NUMBER IN SCANNING PREPARATION: YES NO �..x-._ BY: CROBI MARIA DATE /S/ .__ . Stage 2 IF NO IN STAGE 1, PAGE(S) DISCREPANCIES WERE FOUND: YES NO BY: FAO TJ MARIA DATE: (SCANNING IS COMPLETE AT THIS POINT UNLESS SPECIAL ATTENTION IS REQUIRED ON AN INDIVIDUAL PAGE BASIS DUE TO QUALITY, GRAYSCALE OR COLOR IMAGES) General Notes or Comments about this Document: 5/21/03 ConservOrdCvrPg.wpd STATE OF ALASKA DEPARTMENT OF NATURAL RESOURCES DIVISION OF OIL AND GAS Alaska Oil and Gas Conservation Committee 3001 Porcupine Drive Anchorage, Alaska 99504 Re: THE APPLICATION OF UNION OIL COMPANY OF CALIFORNIA for modifica- tion of Conservation Order No. 80 to Include the following pool rule: Gas from a gas well may be permitted to escape into the air without Committee approval when such gas is used to artificially lift oil from a pool in cases of operational necessity provided no such escape be for more than 30 days in each such case. IT APPEARING THAT: Conservation Order No. 95 McArthur River Field McArthur River Middle Kenai Gas Pool October 8, 1970 1. Union Oil Company of California requested the referenced order by letter dated August 12, 1970. 2. A notice of public hearing was published in the Anchorage Daily News on August 15, 1970, pursuant to Title 11, Alaska Administrative Code, Section 2009. 3. A public hearing was held in the Tien Crawford Memorial Building, Anchorage, Alaska, on August 27, 1970, at which time the applicant amended its original request to provide that escape of gas well gas into the air may be permitted in excess of. 30 days upon Committee approval. Testimony was presented by the applicant. 4. The record of the hearing of Conservation Order No. 95 was held open through September 10, 1970, in order to receive additional reports. AND IT FURTHER APPEARING THAT: 1. Most wells in the Hemlock Oil. Pool of the McArthur River Field have ceased to flow because of a decline in reservoir pressure, and water is being injected to arrest this pressure decline. CONSERVATION ORDER NO. 95 Page 2 October 8, 1970 2. The oil production rate from the Hemlock Oil Pool is maintained by means of gas lift operations, utilizing casinghead or gas in solution with the produced oil. 3. Utilization of casinghead gas for gas lift purposes requires the use of specially built compressors, and space limitations on the producing platforms in the McArthur River Field preclude installation of "standby" or "back-up" compressors. 4. The compressors must be shut down periodically for routine maintenance and occasionally are shut down because of equipment failure. 5. During periods in which the compressors are inoperative, 9-'�1€f Hi-cabnt casinghead gas is unavailable for gas lift operations, and most wells cease producing from the Hemlock Oil Pool unless another gas supply is utilized. 6. Each of the producing platforms in the McArthur River Field has a gas well available to supply gas to lift oil from the Hemlock Oil Pool during periods a compressor is inoperative. 7. Reduced production from certain wells after shutdown may be evidence of reservoir damage. 8. Such reservoir damage, if permanent, will result in reduced recovery of oil from the Hemlock Oil Pool. 9. The likelihood of permanent reservoir damage will increase as production and water injection operations in the Hemlock Oil Pool continue. 10. Use of gas well gas to lift oil from the Hemlock Oil Pool should be minimized. 11. The five day limit on use of gas well gas permitted to escape into the air is too restrictive considering the time required to rep dir the specially -built compressors, but 30 days is an excessive period of time. 12. Production from Hemlock Oil Pool wells may be interrupted for various reasons, in which case applicant can obtain test data on such wells which may provide evidence that shutdown of wells results in reservoir damage. NOW, THEREFORE, IT IS ORDERED THAT Conservation Order No. 80 is amended by adding the following rules thereto. Rule 7. Use of Gas Well Gas In the event any compressor which utilizes casinghead gas for lifting oil from the Hemlock Oil Pool should become inoperative for any reason, CONSERVATION ORDER NO. 95 Page 3 October 8, 1970 gas from the Middle Kenai Gas Pool may be utilized to lift such oil and then be permitted to escape into the air without Committee approval for not to exceed a total of 15 days in any quarterly calendar period. Rule 8. Expiration Rule 7 shall expire one year from the date hereof unless extended by the Committee upon a satisfactory showing that shutdown of Hemlock Oil Pool wells results in reservoir damage. DONE at Anchorage, Alaska, and dated October 8, 1970. Thomas R. Marshall, Jr., Executive Secretary Alaska Oil and Gas Conservation Committee Concurrence: 46� M-1 . 0 - 1lomer L. Burreff, Chairman Alaska Oil and Gas Conservation Committee ** e-A 0. K. Gilbreth, Jr. , Membe Alaska Oil and Gas Conservation Committee Telecopy No. (907) 276-7542 June 12, 1990 A D M I N I S T R A T I V E A P P R 0 V A L N 0. 95.20 Re: Extension of Conservation Order No. 95, McArthur River Field, Middle Kenai Gas Pool. Robert T Anderson District Land Manager Unocal Corporation P 0 Box 190247 Anchorage, AK 99519-0247 Dear Mr Anderson: On June 1. 1990 an application was received from Unocal Corporation stating that all measures incorporated in past years to minimize gas flaring are still in effect. We have also reviewed testimony relevant to this matter submitted as part of Conservation Order No. 95-A. Pursuant to Rule 8 of Conservation Order No. 95, the Alaska Oil and Gas Conservation Commission hereby extends Conservation Order No. 95 until 7:00 am ADST July 1, 1991. Sip,,, erely, Lonnie Smith Commissioner BY ORDER OF THE COMMISS10N jo/3.AA95 Telecopy No. (907) 276-7542 ,Tune 21, 1989 ADMINISTRATIVE APPROVAL NO. 95.19 Re: Extension of Conservation Order No. 95, McArthur River Field, middle Kenai Gas Pool. Robert. T Anderson District Land Manager Unocal Corporation P 0 Box 190247 Anchorage, AK 99519-0247 Dear Mr Anderson: On. June 4, 1989 an application was received from Unocal Corp- oration stating that all measures incorporated in past years to minimize ,gas flaring are still in effect. We have also reviewed testimony relevant to this matter submitted as part of Conservation Order No. 95-A. Pursuant to Rule 8 of Conservation Order No. 95, the Alaska Oil and Gas Con.s+ervation. Commission hereby extends Conservation Order No. 95 until 7 : 00 am AD T July 1, 1990. Sincerely'. 4,'' Lonnie C M"Ith Commissioner BY ORDER OF THE COMMISSION jo/'3.AA95 Telecopy No. (907) 276-7542 June 3, 1988 ADMIN ISTRAT IVE APPROVAL NO. 95-18 Re: Extension of Conservation Order No. 95, McArthur River Field, Middle Kenai Gas Pool. Robert T. Anderson District Land Manager Unocal Corporation P. 0. Box 190247 Anchorage, AK 99519-0247 Dear Mr. Anderson: On June 1, 1988 an application was received from Unocal Corporation stating that all measures incorporated in past years to minimize gas flaring are still in effect. We have also reviewed testimony relevant to this matter submitted as part of Conservation Order. No. 95-A. Pursuant to Rule 8 of Conservation Order No. 95, the Alaska Oil and Gas Conservation Commission hereby extends Conservation Order No. 95 until 7:00 a.m. ADST, July 1, 1989. Sincerely, "'tonnie C.(mith Commissioner BY ORDER OF THE COMMISSION dlf/3.AA95 June 16, 1987 Telecopy No. k '907) 276 -7542 A D M I N I S T R A T I V E A P P R 0 V A L NO. 95.17 Re: Extension of Conservation Order No. 95, McArthur River Field, Middle Kenai Gas Pool. Robert T. Anderson District Land Manager Unocal Corporation P. 0. Box 190247 Anchorage, AK 99519-0247 Dear Mr. Anderson. - On June 15, 1987 an application was received from Unocal Corporation stating that all measures incorporated in past years to minimize gas flaring are still in effect. We have also reviewed testimony relevant to this matter submitted as part of Conservation Order. No. 95-A. Pursuant to Rule 8 of Conservation Order No. 95, the Alaska Oil and Gas Conservation Commission hereby extends Conservation Order No. 95 until 7:00 a.m. ADST, July 1, 1988. Sinc,erely,, Lonnie C. Smith Commissioner BY ORDER OF THE C014MISSION jo/3.AA95 June 5, 1986 TELECOPY NO. (907) 276-7542 A D M I N I S T R A T I V E A P P R 0 V A L NO. 95.16 Re: Extension of Conservation Order No. 95, McArthur River Field Diddle Kenai Gas Pool. Mr. Robert T. Anderson District Land Manager Union Oil Company of California P. 0. Box 1.06247 Anchorage, Alaska 99502 Dear Mr. Anderson: On June 4, 1986 an application was received from Union tail Company of California. stating that all measures incorporated in past gears to minimize gas flaring are still in effect. We have also reviewed testimony relevant to this matter submitted as part of Conservation Order.No. 95-A. Pursuant to Rule 8 of Conservation Order No. 95, the Alaska Oil. and Gas Conservation Commission hereby extends Conservation Order No. 95 until 7:00 AM A.D.S.T., July 1, 1987. Yours very tr'�-Y, Lonnie C. S-mi.th, Commissioner. BY ORDER. OF THE COMMISSI0N d1f:3.AA95 July 1, 1985 A D M I N I S T R A T I V E A P P R 0 V A L NO. 95.15 Re: Extension of Conservation Order No. 95, McArthur River Field Middle Kenai Gas Pool. Mr. Robert T. Anderson District Land Manager Union Oil Company of California P. 0. Box 106247 Anchorage, Alaska 99502 Dear Mr. Anderson: On June 28, 1985 an application was received. from Union Oil Company of California stating that all measures incorporated in past years to minimize gas flaring are still in effect. We have also reviewed testimony relevant to this matter submitted as part of Conservation Order No. 95-A. Pursuant to Rule 8 of Conservation Order No. 95, the Alaska Oil and Gas Conservation Commission, hereby extends Conservation Order No. 95 until 7:00 MI A.D.S.T., July, 1, 1986. Yours very truly, Harry W. Kugler,, 1,7 Commissioner BY ORDER OF THE COMISSION be: 3. AA95 June 6, 1984 ADMINISTRATIVE A P P R 0 V A L NO. 95.14 Ret Extension of Conservation Order No. 95, McArthur River Field Middle Kenai Gas Pool. Mr. Robert T. Anderson District Land Manager Union Oil Company of California P. 0. Box 6247 Anchorage, Alaska 99502 Dear Mr. Anderson: On June 6, 1984 an application was received from Union Oil Company of California stating that all measures incorporated in past years to minimize gas flaring are still in ef fect. lie have also reviewed testimony relevant to this matter sub- mitted as part of Conservation Order No. 95-A. Pursuant to Rule 8 of Conservation Order No. 95, the Alaska Oil and Gas Conservation Commission hereby extends the Conservation Order No. 95 until 7:00 AM A.D.S.T., July 1, 1985. Yours very truly, Harry J. Kugler Commissioner BY ORDER OF THE COMMISSION Ture 20,r 19P3 V U A D M I N I S T R A T I V E A F P IZ 0, V A L N. 95 "i it I i M _.M .213 Re:.E3it—ension of Conservation Order Vo. 95t McArthur River Field MUddle Fenai Cas Pool. Mro Robert T. Anderson District Land Manager Union Oil Company of California Pw 0, Box 6247 Anchorage, Alaska 99502 Dear Mr. Andersont On June 20, 1983 an application was received from Union Oil Cowpary of California stating that all measures incorporated in past years to minimize gas flaring are still in effect. We have also reviewed testimony relevant to this matter sub- mitted as part of Conservation Order No. 95-A. Pursuant to Rule 6 of Conservation Order No. 95t the Alaska Cil and Gas Conservation Commission hereby extends the Conservation Order No. 95 "ntil 7:00 AN A.D.S*T,o July 11 1964, Yonirs very truly.. Farry T.T. Fugler,,, Ccamissioner BY ORDER OF THE COMMISSION be June 23, 1982 ADN'l N I STRAT I VE APPROVAL NO. 95.12 Re: ftctenslon of Conservation Order 95,, LICArthur River field, lkliddle Kenai Gas Pool* Mr. Robert T. Anderson District Land Managex Union Oil Conripany of California P. 0. Pox 6247 Anchorage, Alaska 99502 Dear 10r. Anderson: On June 22, 1982 an application was recokived from Union Oil Corz)pany- of California stating that all measures Incorporated in past years to mli4�,Imlzo as flaring are still in effect., Vise have also reviewed testimony relevant to this matter submitted as part of Conservation Order Yo. 95-A. Pursuant to Rule 8 of Conservation Order No. 95,, the Alaska Oil and Gas Conservation Corzimission hereby extends Conservation Order No. 95 until 7:00 AM, A.D.S.T.0 July ll 1983, Yours very truly, Harry W. Xugle r. Cocunissloner BY ORDER OF TBIE CViM11$S10N BAIR :lit June 10, 1981 ADM I N I S T P A T IVE APPROVAL NO. 95. 11 Re: Extension of Conservation Order 95, McArthur River Field, Middle Kenai Gas Pool. Mr. Robert T.,Anderson District Land Manager Union Oil Company of California P. 0. Box 6247 Anchorage, Alaska 99502 Dear Fr, Anderson; On June 8, 1981 an application was received from Union Oil Company of California detailing recent and ongoing efforts to minimize gas well qas flaring from the McArthur River Field. We have also reviewed testimony relevant to this matter, submitted as part of Conservation Order No. 95-A. Pursuant to Rule 8 of Conservation Order Ho. 95, the Alaska Oil and Gas Conservation Commission hereby extends Conservation Order No. 95 until 1:00 AlN A.D,S.T., July 1, 1982. Yours very truly, Harry W. Kuqler" Commissioner BY THE ORDER. OF THE COMMISSION 11WK: be June 6, 1980 ADMINI STRAT IVE APPROVAL N 0 1 (-fs- -0 Re: Extension of Consfrvation Order 95, McArthur River Field, Middle Kenai Gas Pool, Mr. Robert T. Anderson District Land Manager Union Oil Company of California P. O. tax 6247 Anchorage, Alaska 99502 Dear Mr, Anderson: On June 4, 1980 an application was received from Union Oil' Company of California detailing recent and ongoing efforts to minimize gas well gas flaring from the McArthur River Middle Kenai Gas Pool* vie have also reviewed testimony relevant to this matter submitted as part of Conservation Order No. 95-AS Pursuant to Rule 8 of Conservation Order No, 95, the Alaska Oil 'and Gas Conservation Commission hereby extends Conservation Order No. 95 until 7:00 AM A.D.S.T., July 1. 1981. Yours very truly, Harry W, Kugler Commissioner BY THE ORDER OF THE COMMISSION VWXtbe August 20, 1979 A D M I N I S T R A T I V E A P P R 0 V A It No. 95.9 Re: Extension of Conservation order No. 95 McArthur River Field, middle' Kenai Gas Pool.' Mr, Wayne Rod ges Landman Union Oil Company of California P. 0. Box 6247 Anchorage, Alaska 99502 Dear Mr. Rod ges.: On August 20, 1979 an application was received from Union oil Company of California detailing recent and ongoing efforts to minimize gas well gas flaring from the McArthur River Middle Kenai Gas Pool. we have also reviewed testimony relevant to this matter submitted as part of Conservation Order No. 95-Ao Pursuant to Rule 8 of conservation Order No. 950 the Alaska oil and Gas Conservation Committee -hereby extends Conservation Orde'r No. 95 until 7:00 AM A.D.S.,T.,, July 1,, 1980. Yours very truly, Harry W. Kugler Commissioner BY THE ORDER OF THE COMMISSION 111";X: be _.:* June 27, 1978 ADMINISTRATIVE .APPROVAL N 5.��'` Re r ion of Conservati x Order N. 95 Nit l= River Field, Middle Xemi Gas Pool Mr. P4bert T. Anderson District Land Mnager Wm ailOmpany of California Anchorage, Alaska 9950 Dead" Mr. Anderson: On J'mie 20, 1978, an applicatim mas received fran ttdm Oil Caq=y of California detailing remit and cngoing effcrts to odnize gas ll gas flaring frcm the McArthur River Wdle Kenai cvas Pool. We ba-ve also reviwed testUmmy relamt to this matter . rated as part of Ctmservation Order No. 95-A. Pursuant to lb� 8 of Cmservatim Order No. 9 , the Alaska Oil and Gas Conservatim Camdttee hereby wMends Cmsermatim Order No. 95 until 7:00 AEI A.D.S„T.., July 1, 1979. Very tnily yours, nzas R. Marshall, Jr. Fbow*iVe Secretary l � �;� 4r 1rl ��� ►`11,17 DEPARTMENT O NATURAL RESOUIMES DIVISION Of OIL AND GAS Conservation July 1, 1977 JAYS. HAMMOND, GOVERNOR 3001 PORCUPINE DRIVE -ANCHORAGE 99501 ADMINISTRATIVE APPROVAL NO. 95.7 Re: Extension of Conservation Order No. 95 McArthur River Field, Middle Kenai Gas Pool Mr. Robert T. Anderson District Land Manager Union Oil Company of California Box 6247 Anchorage, Alaska 99502 Dear. ,11r . Anderson: On June 29, 1977, an application was received from Union Oil Company of California detailing recent effort to minimize gas well gas flaring from the McArthur River Middle Kenai Gas Pool. We have also reviewed testimony relevant to this matter submitted as part of Conservation Order No. 95-A. Pursuant to Rule 8 of Conservation Order No. 95, the Alaska Oil and Gas Conservation Committee hereby extends Conservation Order No. 95 until 7:00 AM A.D.S.T., July 1, 1978. Very truly yours, Thcuis R. Marshall, Jr. Executive Secretary i ALASKA OIL AND CAS CONSERVATION COMMITTEE Y January 28, 1975 A D M I It I S T R A T I V E A P P R 0 V A L H 0. 95.6 Re: Extension of Conservation Order No. 95 McArthur (liver Field, 11iddle Kenai Gas Pool 1+3r, Robert T. Anderson District Band Manager Union Oil Company of California Box 6247 Anchorage, Alaska 99502 Dear Mr. Anderson: Pursuant to Rule O of Conservation Order No. 95, the Alaska Oil and Gas Conservation Committee hereby extends Conservation Order No. 95 until 7:00 AM A.DrS.T., July 19 1977. Vile have reviewed testimony relevant to this ,utter submitted as part of Conservation Order No. 95-A. Very truly yours, Thomas R. Marshall , Jr. Executive Secretary TRM b Jr V ALUU OIL AND GAS COISUVATWN II Jme 17 o 1974 A 1 I TEA I $ APPRO AL log,21.22 i of Cotmrvotlan Order No. 95 c. Rabort T, Aud+soe 4otrut x=AV Um Oil Owpany of California. Sm 6247 aU " ` peace W . I a erva tUm Ow"t-too Roby exteads, ZmeezvatUn "ft. 95 Until We 'hen reviewed, tostimay relevant, to this matter omitted as part of fiery truly, Vie,: TWOS* C h 1 wArlea1.l, it 'S�Mutive Secretary liftebt ALASM 01 L Pif) GAS CCONSEVAT I C04A 171 EE cj J tj.qe 21, 1,173 AD*4 I tl I STPRAT I VE APPROVAL ?40. 05.4 Re: ExIlentka of OmservatIon Order �Io. 95 McArthur River Ffald7r Middle Kbr al Gas Pool %bert T. Andarsm District Land Mmaqer t J"n I on 0 11 Company of' Ca I I f0m I a ROq W. 9th Avenuo Anc%horoiga, Alaska 99501 Car PAr. Andersm, Pursuant to Ru I a 8 crf C xmservat i on Order �Io. 95 the A Lask-a 1011 and (�&s Cz-Asorvatlbn Ca", lti*o he o-xfpnds Conservation Order �Io. 95 untf 1 Is have rowlawed tastImony relevant -to this matter submitted as part of 0onservation Order No.. 95-A. Very truly yours, Thcms R. Marsha I I Jr. FxS"tive Secretary T PII -., J h February 24, 1972 Re: Administrative Approval 95.3 A A qs. 3 Mr., Robert T. Anderson Union Oil Company of California 909 W. 9th Avenue Anchorage, Alaska 09501 Dear Mr. Anderson: We have rec4fved your letter of February 23, 1972, with table and exhibits, setting forth the emergency situation on the King Salmon Platform and your request for a five (5) day extension of the provisions of Conservation Order #95, Rule 7, during the current quarterly calendar period. The 15-4ay period during which gas from the Middle Kenai Gas Pool may be utilized to lift oil and escape, into the air is hereby extended five (5) days, as, to the King Salmon platform., during the quarter calendar period ending March 31, 1972. Rule 7 is hereby extended for five (5) days for the King Salmn Platform during the quarter c6leadar -period endIng Harch 31, 1972. Sincerely, Thomas R. Marshall, Jr. Executive Secretary Alaska Oil and Gas Conservation Committee. 04tw6w 19, -&971 Res xxte As ion of CoUM"ra1L i-en Order No, 95, Y AA Mr.. wade S. Mcnis ter Union Oil Company of Cali lnit 909 We 9th Avenues Anchorage„ Alaska 99501 Dear Mr. McAlister t P'tirsi3 mt to Rule S of Conner,,,,: r..ion Ordor Mom 93, the Alaska Oil, snd Gas Conservation C+a wdttea b�,"-r rby extends Conservation Order No, 95 until July 1, 1973. We have received and considered your application dated October 7, 1971 Including attached Exhibits 1 through 3 and your letter datad Octabor 120 1971 with aattactLed additle cal t .6 .. Sit�ex's1y. Thom & 1. Marshall, .fat. Exacw►tiv�a$►!!CrltadZ'y ' °n and ;'ii m , �Y�►�t� 'lhC J *• 1 w+�'1'11 H '�'�'�' � `�' ° Yl •' �' � ' �+' � � ' JN.'w;. ��' ...wa i, .ti �:'' F rn. ,�k. '. h„ r.u. �'. _,.�" �',. .,. ..+.. 9 N:'e4 Y. w _ .. !�- . , "`••• x1`.N,rJ4irl3.1W w :. � . J�`LJl:'�." ' � 0i1'Y+"i�s�Y�li'lry'�M .1ib.�,�IJ� u _ � ..,....w.�J , � .r!a. .. ''iJ� � ��i�2 y. �uINiYF� 'M d .. �.�. w '.�wlu+�.J wr ;:.� , � �,:. rti. ,, ,.YhaYiY, � V �+=a 4P,. .�►u .rY�W9'y. Robert T. Anderson Manager, Lands Alaska Region Gentlemen: Unocal North Americ- E Oil & Gas Division Unocal Corporation P.O. Box 190247 Anchorage, Alaska 99519-0247 Telephone (907) 276-7600 June 1, 1990 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501-1433 MCARTHUR RIVER FIELD State of Alaska Conservation Order 95 Application for Extension Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1991, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calendar quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 162 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in affect. Although we are Continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required, thereby necessitating the extension of this order. Very truly yours, Robert T. A derson RTA: rms REcEIVED F4sk oil & Gas cons. Commission Anchorap Robert T. Anderson District Land Manager Alaska District Gentlemen: A. Unocal Oil A Gas lion Unocal Corporatiol P.O. Box 190247 ; u �,� �� - Anchorage, Alaska 99519-0247 % C�k.' Telephone (907)•276-77600 r,� CC?�;�i] fvR UNOCAL �6 �s Elyi� :0000"'4'* ��,�-��s _ je —cc, 3 ASS i June 14, 1989 I_ FILE Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-1433 McARTHUR RIVER FIELD State of Alaska Conservation Order 95 Application for Extension Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1990, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in effect. Although we are continually making efforts to reduce dry gas flare by .improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. Very truly yours, ��" Robert T. Anderson 04491/12 RECEIVED JUN 15 19 Alaska Oil & Gas Cons. Commission Anchorage Robert T. Anderson District Land Manager Alaska District Gentlemen: Unocal Oil & Gas Unocal Corporation P.O. Box 190247 Anchorage, Alaska 99519-0247 01 Telephone (907) 276-7600 — �f�19— GS UNOCAL June 1, 1988 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-1433 McARTHUR RIVER FIELD State of Alaska Conservation Order 95 Application for Extension 61 Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1989, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in effect. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. 04491 Very truly yours, Robert T. Anderson KE ""FIVE' &W Robert T. Anderson District Land Manager Alaska District Gentlemen: Unocal Oil & G Sion Unocal Corporatioi i P.O. Box 190247 Anchorage, Alaska 99519-0247 ----'-- t Telephone (907) 276-7600 UNOCAL19 _.i June 12, 1987 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-1433 McARTHUR RIVER FIELD State of Alaska Conservation Order 95 Application for Extension Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1988, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in effect. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. Very truly yours, Rober T. Anderson .'nit ��,•%;!��,�� ^� V ",.i ^!�� Robert T. Anderson District Land Manager Alaska District Gentlemen: Unocal Oil & Gas Divil Unocal Corporation P.O. Box 190247 Anchorage, Alaska 99519-0247 Telephone (907) 276-7600 76 UNOCAL19 1 _ June 3. 1986 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99504 McARTHUR RIVER FIELD ,- State of Alask f/ ' Conservation Order 95 Application for Extension Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1987, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity, The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in effect. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. Very truly yours, A Robert T. nderson R E C E IN! E D JUNK 4 1986 Alaska Oil & Gas G11 s, Oc�,rraissiQr� Robert T. Anderson District Land Manager A PC el 9 Gentlemen: Union Oil and Gash_ ion: Western Region Union Oil Company of California P.O. Box 6247, Anchorage, Alaska 99502 Telephone: (907) 276-7600 L union June 27, 1985 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99504 McARTHUR RIVER FIELD State of Alaska onserva ion r er 95 Application for Extension Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1986, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in effect. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. Very truly yours, Robert T. An erson & Gas Gory Union Oil and GaA -on: Western Regio Union Oil Company of California P.O. Box 6247, Anchorage, Alaska 99502 Telephone: (907) 276-7600�_;,.i:',�.� - union Robert T. Anderson District Land Manager _ I. 5� ; `Vr TEC - Alaska Oil and Gas Conservation I CONFLER: Commission '_FILF: - �- 3001 Porcupine Drive Anchorage, Alaska 99504 June 17, 1983 McARTHUR RIVER FIELD State of Alaska Conservation Order 95 Application for Extension Gentlemen: Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1984, of Conservation Order,:95, amending Conservation Order 80, permitting gas well gas to escape into th Fair 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in effect. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. Very truly yours, obert T. Anderson RECF.IVEG JU 1,111111,11 '111'�'111� 0 19�8'0 Alaska Oil u0tiWOs sl:, A➢uchoi"age / "(: - -I, le C/, 0 r Robert T. Anderson District Land Manager Gentlemen: Union Oil and Gas 'ison: Western Region r" Union Oil Company of California P.O. Box 6247, Anchorage, Alaska 99502 Telephone: (907) 276-7600 union June 21, 1982 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99504 McARTHUR RIVER FIELD State of Alaska Conservation Order 95 Application for Extension Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1983, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in effect. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. Very truly yours, r Robert nderson RECEIVED ',-1s1ca Oil & Gas Cons. C jn. ,��?0oj-a( () Jon Robert T. Anderson District Land Manager Gentlemen: Union Oil and Gas G" �ison: Western Region Union Oil Company of California P.O. Box 6247, Anchorage, Alaska 99502 Telephone: (907) 276-7600 union 'June 8, 1981 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99504 McARTHUR RIVER FIELD State of Alaska Conservation Order 95 Application for Extension _ COMNI _�I _ Comm 'IEN^ 2 ENG -3 4 FNG -1 Gc0L 2 GEOL 3 GEOL STAT T^C STAT TF-C - - _j CONFER: Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1982, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in effect. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. Very truly yours, Robert Anderson q RE 4. � 0,/ & Gas Union Oil and Gas +ison: Western Region�,�, I Union Oil Coma -of California P.O. Box 6247, Anchorage, Alaska 99502 � o Telephone: (907) 276-7600 to - rig unin Yoe J. Robert T. Anderson June 3, 1980 District Land Manager Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99504 McARTHUR RIVER FIELD. ; State of Alaska Conservation Order 95 Application for Extension Gentlemen: Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1981, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972,-is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production. rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas flaring are still in effect. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. Very truly yours, G Robe t T. Anderson .; ., 4tV Q�i Robert T. Anderson District Land Manager Gentlemen: Union Oil and GaS �on: Western Region Union Oil Company of California / P.O. Box 6247, Anchorage, Alaska 99502 Telephone: (907) 276-7600 Telex: 90-25188 union August 20, 1979 Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99504 McARTHUR RIVER FIELD State of Alaska Conservation Order 95 Application for Extension Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1980, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. The preventative maintenance measures incorporated in past years to minimize gas f laring are still in of f ect. Recently we have been experiencing ever increasing delays in receiving major parts for our gas compressors. To alleviate the problem we are reviewing our existing large spare parts inventory and will make the necessary orders for additional standby equipment. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating,the extension of this order. Very truly yours,', ne Rodgesz,�, ndman W ion: Western Region Union Oil and Gas E( 00 Union Oil Company of California 1 Cow of, P.O. Box 6247, Anchorage, Alaska 99502 /�j e, Telephone: (907) 276-7600 Telex: 90-25188 union 3 V Robert T. Anderson Kr_ District Land Manager June 19, 1978 , FT r ----------- """ c State of Alaska Oil & Gas Conservation Committee 3001 Porcupine Drive Anchorage, Alaska 99504 McARTHUR RIVER FIELD State, of Alaska Uons&Vatidh Order . 95 Application for Extension Gentlemen: Union Oil Company of California, as operator of the TradingBay Unit, hereby makes application for extension until July l.. 1979, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calender quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. Specific preventative measures incorporated to minimize gas well gas flaring are: (1) Continuation of the preventative maintenance programs which includes vibration monitoring and analysis of critical high speed equipment, lube oil analysis, scheduled periodic shut down inspections of gas turbines and annual inspection of water/gas heat exchangers. (2) Increase the compressor spare parts inventory on each plat- form, to reduce lost time due to shipping problems. A spare gas turbine was also purchased for the Grayling to decrease compressor down time. (3) Improved training programs. Operators and mechanics are sent to technical schools and also receive on board train- ing with slide -tape programs. A change in the King Salmon's organization was made with the addition of a maintenance supervisor to better coordinate maintenance activities. R E C E I V E jUN 2 01978 D;N isioll of ou anfj C�Aas uonserv; Anchorage State of Alaska -2- Oil & Gas Conservation Committee June 19, 1978 The effect of the programs discussed has been improved gas compressor operations. This is evidenced by the Grayling and Dolly Varden Platform records for the past three years where on time records varied between 97% and 98.90. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. DEVARTMENT O NATURAL REISOURCES DIVISION Of OIL AND GAS Conservation July 1, 19 7.7 JAY S. HAMMOND, GOVERNOR 3001 PORCUPINE DRIVE -ANCHORAGE 99501 ADMINISTRATIVE APPROVAL NO. 95.7 Re: Extension of Conservation Order No. 95 McArthur River Field, Middle Kenai Gas Pool Mr. Robert T. Anderson District Land Manager Union Oil Company of California Box 6247 Anchorage, Alaska 99502 Dear. • M r . Anderson: On June 29, 1977, an application was received from. Union Oil Company of California detailing recent effort to minimize gas well gas flaring from the McArthur River Middle Kenai Gas Pool. We have also reviewed testimony relevant to this matter submitted as part of Conservation Order No. 95-A. Pursuant to Rule 8 of Conservation Order No. 95, the Alaska Oil and Gas Conservation Committee hereby extends Conservation Order No. 95 until 7:00 AM A.D.S.T., July 1, 1978. Very truly yours, Lam` Thcmtiis R. Marshall, Jr. Executive Secretary Union Oil and Gas D on: Western Region Union Oil Company of California P.O. Box 6247, Anchorage, Alaska 99502 Telephone: (907) 276-7600 I DIR l���. -� Telex: 90-25188 C. GFCL /44 C. ERG I 1 ENGunio- n Robert T. Anderson June 29 1977 District Land Manager I 2 GE`-)L Ail I n . i F 1 !EV i State of Alaska DRAFT __ Oil & Gas Conservation Committee SAC �___ 3001 Porcupine Drive CONFER: FILE:f-'() c� r Anchorage, Alaska 99504 McARTHUR RIVER FIELD ` �"``��' ��r' �� ��'� r'" State of Alaska Conservation Order 95 Application for Extension Gentlemen: Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1978, of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calendar quarter because of operations necessity. The testimony presented by Mr. Gary Way in support of extension of this order on June 16, 1972, is still valid. Well performance continues to show that shut-ins for even short periods have the effect of reducing production rate and ultimate recovery. There have been accomplishments made to improve on time of equipment thus reducing the frequency of emergency situations when gas well gas is required. Within the past two years each platform of the T.B.U. has increased its gas handling capacity by about 3,900 HP. This was necessi- tated by the increasing gas lift requirements as water cuts increased. Where gas well gas was used to maintain production rates, the increased compressor capacity allowed a subsequent reduction in its use. The installation of a standby vapor compressor on the Grayling two years ago also reduced downtime on the rich gas system. Other efforts made to minimize gas well gas flaring are: (1) Improvements in preventative maintenance programs which include vibration monitoring and analysis of critical high speed equipment, lube oil analysis, scheduled periodic shut down inspections of gas turbins and annual inspection of water/gas heat exchangers. t t ..,'W State of Alaska - 2 - June 29, 1977 Oil & Gas Conservation Committee (2) Increase the compressor spare parts inventory on each platform to reduce lost time due to shipping problems. A spare gas turbine was also purchased for the Grayling to decrease compressor d own - t ime . (3) Improved training programs. Operators and mechanics are sent to technical schools and also receive on board training with slide -tape programs. A change in the King Salmon's organization was made with the addition of a maintenance supervisor to better coordinate maintenance activities. The effect of the programs discussed has been improved gas compressor operations. This is evidenced by the Grayling and Dolly Varden Platform records for the past two years where on time records varied between 97% and 98.9%. Although we are continually making efforts to reduce dry gas flare by improving our mechanical equipment operations, we will continue to have emergencies when excess flaring is required thereby necessitating the extension of this order. Very truly yours. e Robert T. An erson C. 0. 95 2/4/76 10:00 AM The Oil and Gas Conservation Committee met to discuss Union Oil Company's request for AA 95.6. Total dry gas flared for 1975 from the MacArthur River Middle Kenai Gas pool was 539 mmcfg/year. This is about 1.6 mmcfg/day. Monthly flaring figures inidate flaring of some amount of gas each month with some months flaring many times the average monthly rate. It was agreed that a letter should be sent to the operator requesting plans of how flaring due to equipment failure could be minimized. Union Oil and Gas :ion: Western Region Union Oil Company of California P.O. Box 6247, Anchorage, Alaska 99502 _ I D1R Telephone: (907) 279-7681 C. GEOL _ -� C. ENG,, February 27, 1976 ENG 1 2 _,N I 3 nion .NG - _ I 4 FNG 5 ENG-i-- IK Mr. Thomas R. Marshall` Jr. !I 2 GrcL IL Eugene F. Griffin District Operations Manager State of Alaska,, Dept. of Natural Res °t Alaska District Oil and Gas Conservation Committee-1 REV I 3001 Porcupine Drive I DRAFT I s: Anchorage, Alaska 99501 g ;: 4-0 { c4D& Dear Mr. Marshall: `' > 3401`sl DRY GAS FLARING co McArthur River Field,, Cook Inlet, Alaska This is in response to your letter of February 4 concerning flaring of dry gas from the McArthur River Field. We are also concerned when gas flaring is necessary and have taken definite action that should reduce future occurrences. A large partion. of the,, flare. that has occurred during 1975 res,ulte:d primarily from ,mach,. apical problems with gas lift compressors. Additional compressors have been in- stalled durin the g year on the: three McArthur River platforms. These installations increase the; available gas lift horsepower and results in additional capacity to be utilized during mechanical equipment maintenance and malfunctions. The new 4,000 HP Rustin-»York compressor on the King Salmon was operational last August, but has had some startup problems. It is now considered fully operational. It also has the adaptability to compress additional gas to the onshore site when needed, The new 3 , 800 HP Solar -Centaur gas lift compressor on the Dolly Varden platform was completed and fully operational by February, 1975, and the new 3,800 HP Solars»Centaur compressor installed aboard the Grayling was in service last December. The Trading Bay Production facility experienced considerable compressor problems in heat exchangers. The result of this problem also increased the gas flare. Recent successful steps have been taken to greatly reduce the corrosion problem and should result in a much lower flare in the future. The programs discussed have been costly, but are affording a more efficient overall operation. The end result is continued normal oil production rate with lower total gas flare. MAN 11976 DIVISION OF OIL AND GAS E FG: nnb ANCHORA t Ve truly xre%iira uge e February 4, 1976 Mr. R. E. Anderson Union Oil Company of California Box 624.7 Anchorage, Alaska 99502 Dear Mr. Anderson: The Oil and Gas Conservation Committee is particularly concerned with the flaring of dry gas from the McArthur River 14iddle Kenai Gas Field durinq periods of equipment failure. Flaring is currently permitted for up to 15 days per quarter under Conservation Order No. 95, principally because of the indications that oil recovery may be reduced if oil wells are shut in during times when compressors are nonoperable. We would be interested in any short or long range programs your company may have which could reduce the amount of dry gas flared. Sincerely, Thomas R. Marshall, Jr. Executive Secretary Oil and Gas Conservation Committee T R PI - b j m, Union Oil and Gas 171 'sion: Western Region Union Oil Company of California P.O. Box 6247, Anchorage, Alaska 99502 Telephone: (907) 279-7681 r�" union ) n Robert T. Anderson January13, 1976 District Land Manager State of Alaska j Oil -and Gas Conservation Committe 3001 Porcupine Drive �;�:: Anchorage, Alaska 99504 McARTHUR RIVER FIELD State of Alaska Conservation Order 95 Application for Extension Gentlemen: Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1977 of Conservation Order 95, amending Conservation Order 80, permitting gas well gas to escape into the air 15 days per calendar quarter because of operational necessity. Reference i,s made to the testimony and Exhibits previously submitted in support of extension of this Order on June 16, 1972. The same technical and mechanical conditions exist in the Field today that existed at that time, therefore, necessitating the extension of this Order. We respectfully request approval of this application. AN 14 1979 G AS Very truly yours, UNION OIL COMPANY OF CALIFORNIA Operator Union Oil and Gas D Jsion: Western Region Union Oil Company . California P.O. Box 6247, Anchorage, Alaska 99502 Telephone: (907) 279-7681 union Robert T. Anderson District Land Manager June 13, 1974 State of .Alaska Oil and Gas Conservation Committee 3001 Porcupine Drive Anchorage, Alaska 99504 bbAFdHUR RIVER FIELD State of Alaska Conservation Order 95 Applicatio for Extension Gentlemexi : � . c' �..�i f K 4 A - Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1975 of Conservation Order 95, amnendi.ng Conservation Order 80, permitting gas well gas to escape into the air 15 days per calendar quarter because of operational necessity. Reference is made to the testimrony and Exhibits previously submitted in support of extension of this Order on June 16, 1972. The same technical and mechanical conditions exist in the Field today that existed at that time, therefore, necessitating the extention of this Order. We respectfully request approval of this application. very truly yours, UNION OIL COMPANY OF CALIFORNIA Operator D I R �1 G -G�CL- �C -ENG I- �- �N- 2 1�1 G--�-- 3 ENG j Ll� ^ _ `�. 1. L ---I 3 'GEOL I. DRAFT { SEC COt\3F—ER � ---- / 7�/' By < . Dr nr Er-n J U N 7 1974 _ AND ��:� Robert T. Anderson District Land Manager Gentlemen: DIR Union Oil and Gas Dl• � is Western Region C. �EOL G C. ENG Union Oil Company of California ---�_.- - ENG 909 W. 9th Avenue, Anchorage, Alaska 99501 ENS Telephone: (907) 279-7681 PENG E,E* 5 ENf3 union 1 f EOL 2 GE0! 13 GEOL I REV f DRAPf June 29, 1973 SEC CONFER, 44/ eV 4 O . / 1 FILE: CG. Alt IfCacTjjjl�b 6Ifn �+ State of Alaska Oil and Gas Conservation Committee 3 001 Porcupine Drive Anchorage, Alaska 99504 Re: McARTHUR RIVER FIELD STATE OF ALASKA Conservation Order 95 Application for Extension Union Oil Company of California, as Operator of the Trading Bay Unit, hereby makes application for extension until July 1, 1974 of Conserva- tion Order 95, amending Conservation Order 80, permitting gas well gas 'to escape into the air 15 days per calendar quarter because of operational necessity. Reference is made to the testimony and Exhibits previously submitted in support of extension of this Order on June 16, 1972. The same technical and mechanical conditions exist in the Field today that existed at that time, therefore, necessitating the extention of this Order. We respectfully request approval of this application. RJUN 2 91973 ID DIVISION OF OIL AND GAS ANCHORAOF, Very truly yours, UNION OIL COMPANY OF CALIFORNIA Operator By: f Robert T. Anderson District Land Manager c �� of Union Oil and Gas lion: Western Region Union Oil Company of California 909 W. 9th Avenue, Anchorage, Alaska 99501 Telephone: (907) 279-7681 union February 23, 1972 State of Alaska Oil & Gas Conservation Committe 3001 Porcupine Drive Anchorage, Alaska 99504 SIR 1 C. GEOL -1 ENG--- - 2 ENG 3 ENG - `--- 4 ENG 5 ENG -; i GEOL —� 2 GEOL 3 GEOL J—REV `— pRAFi SEC CONEER� McARTHUR R I VE.R FIELD -- STATE OF ALAS KA Conservation Order #95 . Gentlemen: Union Oil Company of California, as Operator of the Trading Bay Unit, requests an emergency order to allow the provisions of Conservation Order #95, Rule 7, to be extended for an additional five (5) days for the King Salmon Platform during the current calendar quarter. The gas lift compressor on King Salmon Platform was scheduled for its annual overhaul on February 9, 1972. The manufacturer's recommended spare parts inventory proved to be inadequate to rebuild the turbo charger, which was found to have suffered considerable wear and damage since installation. Additional parts were air freighted to Kenai by the manufacturer and the overhaul was completed on February 16, 1972. Subsequent operation revealed the turbo charger was not functioning properly. It was necessary to air freight i t to Houston, Texas, where it was determined by the manufacturer that they had shipped a bent shaft. The manufacturer has since rebuilt the rotating element and air shippedtit to Kenai. The requested extension should allow sufficient time to reassemble the compressor and insure it is operational. In the meantime however, the K-20 gas well must continue to be utilized to provide gas lift gas. Platform shut downs have historically resulted in a loss of productive potential in oil wells in the McArthur River Field. This is true particu- larly, though not exclusively, in wells with water cuts. Recent severe icing conditions in the Cook Inlet prevented tankers from loading oil at the Drift River terminal thereby creating a shortage in storage capacity resulting in a curtailment of McArthur River oil production. Grayling platform wells were shut in for periods ranging from 20 hours to a week. After all wells had been returned to production the Grayling d����i'�Iro',eESw�l� 1..�n"` '1.,�';�.� d'�ro.'i`•��� �.'GodrR��'e State of Alaska l McArthur River F!,-.id Conservation Order #95• -2- February 23, 1972 platform had lost over 2,000 net BOPD. A list of Grayling wells showing an oil production loss subsequent to the curtailment period is attached as Table I. Also attached are the daily oil production test curves which graphically illustrate the production loss incurred for each well. To prevent risking a reduction of productivity by shutting in wells, it is necessary for gas well gas to be utilized for lifting purposes until the temporary compressor difficulties can be remedied. Very truly yours, UNION OIL COMPANY OF CALIFORNIA BY,......;.._..�. ms,. Attorney- i n-Fact'' ., .. •2o F e �• � � <PAoo. I►IsT. � , , ;.•, ..DAILY TEST RATES i . ....,. NO, 7-'TRADING BAY U:\iie iT i !ELD LEASE ' 1 7 D NE WELL No. G-Z 16 - ... i ! I I r . i j : i . ' 1 ! ', !' i ; � T ' I. I i' • ��� 1 _...., ...�., L 'Y"i'•'; "`�^' M •-w_ 7 �, ` i 1 f. i. •I' 1 r r ti I I. � •1• L I , I .i. , 1 , t t i _:,............ ... it ) { r i• i i . i.. .I. I 4 1. 1 , - i i 1. I t t r. , t7 ( , i , , I � � j,. , I 1 `` � 'I• i� t i 1 , -i i ► 1 ) i , f t 't z .,,,) .«.... ... ...... I.. „ f t , ..: jt �� ,. .�f .�'". I ,�• :1-i -�� ix _.ice f f I 1 1 a.. !r j 1 , , •; i'• t 1- t: t "{ i , ! I I . I } i. 1 I I .I ', • .Y,. I. .3 j I , I , r 1_ r r ' 1^- 't• .!_ .. q.. 1- .,_ .. ... .... ....... ... V , 1 1 .. ... .. _ t .t..• .,... i .). W+, •-•-�.1,• 'L._:........ ... .. .... ....... ...._.._.. _........ ..... ..--�.w.. .�•.-r 4, I •.le ei��'Y_..I - 'Y _..I r �••,- :,,...a .._. ...-i.... ..... _.....,... ,. -... S � I : I .. tb. .1. , ,I- � .1. I { i t , j 'j j•� .y. _�: .L �,:: a_ ..#l« y. ••. r -r•- ... r ....... .. .. I t ------ -- - - ------- . ....... j. -77 - r '71C` .. .. : t" •1 vl Li ict 17�.t.+a:,...........,._....`......_. �I, V � � I ,,,): ) .. � � , 1 .. ' .. , .... .. I ..! 1 ,:<,«' ((' i , ' I � I. �• I ,. a t. [ t arm...._ � .. ..... .. .. ... . ._...._ ....... ............._... _............ _ .._. , _. .. - • - --.._... __ .. ,.._.{•! ; ,;M L 'I i _ ,r. ._ .. ._. . _. .. 1. , f .j , a s 1. { �I I f CC ... .. .. - 1_. _.. -- ._..--............._.....�.. -- - , _.. _ ...•.+.w.a+nrc.ti,hi. _ .... r_—. .. • n. c . . r . o. ....... r..a...._ _._ *^'..^^^A•...°,•,,.n*.md,� `ms.. .. 1 _ . , •w++rrrA. _ w�i,a,a.:,,:..�.,.�,,.,,�.«++.xti�l�is"".iir.,►W::;,u:,..�....,::� ,.f., rr.'w�?�,••;r .�. PROD: INT, DAILY TEST RATES TRADING BAY UNI1FIELO LEASE , „ r •- 'pis-* .. i ZONE WELL No. G-p li j: I,—,--"�---1--."_1f— -_.-- —•- .:..,-�- ��-r• i• , •r-•- T^•-T^^----•- ! .i, :. , ( i �I' 1 I •j • r,.i it �li , f. ,. : i.. 'S'- i 't j •} }, , .�.. i i; I ! i. L.L. =n.,. 1 1 'A I. .r.. , I t ,t '� {' .I� 1 1• 'i: i '! -! I . I. f . ? � i i i. r.:.,, _ ,. L-q— if Z I�. �, r''•' . A. 71 a......_.. ....:............._....__._... ._. ......_+ ..._._...._._. ..............._......_............._....._....._.......__._....._......._ ._.......... �':I. 2'11' S .. Rfh y�•u'. 'f r •. •. J NH : - DULY UuU •••... 9:FYT P+if .«A C?'TOa! t Nb'i It m u k:R• ?S'.,:CI.I I±ER•.. Arl`A+iY I•1•. r.. •.e JAKGA t. Y?_V.Fit! FtY: fR AR:.H AF. R,L t ` ''. 4c.�.;.ye ..,1_..... .+w;..,..,..G..,..wa........r.�....,v_.rr..,-..,.......u,,.u..-.........�.. .....,..,�..»...1.,....'.... �..�...,,..... w.n.+'Iw.F.....,«gn�u,.w,: ,Mn+n.n�.w�r•M.n•�r,.n..+.wnAnn,ne+.wwn�•w.:r.�,wr,M�v�w�..f Y�!11P"`a"" wmnipq.�+.. ...n�m*mn?n".�.,.,..smmw. ..,:.. ,�, mmr.�m•mom+aa.,nww_rvknw+nn�m,a,rmm�rtrvm-uerenm�mm.'.+.^�^•..w�!�•mmMf^'x+.:�.+^.^Awn . ^+m-^mmnm*m.-+n ',m••*_•�,.,...m,,.n•*.�++.,.*nm_a*m,�,.w,m-�m•�.,�....mm_mn.n„n mn-._.*..-.+,...m*n-.-,.., «-�,, . :. - ,o., ,.,� _ S r7 :. 1 H .. .>.. i.. l! 7 f ' ' _. . �ilic#aJa w1�a�iy4MYiY%•SnW�!YJSW'r1�Rnn.w .� '. � � ...'..� 1 ., v , .?. i hMIW AY+dYl�M4T:Ii�L/W�i}?Y?�IWN.�kMJdtW41�,�."'��y,���� � �. . . ��..;' ,. � 'r�. ��. � .... 4 a...� � ., ....... .. . r. ., Now�?�+b.�i14"�R� .�+Yai4i+.�}w�7 ,'�M+aa'�!w�*Gwpv. kaaal.. . ;. � r,,, . ,.. ,.- wY.itYiaJwlauk�w.�.'e¢ .:�, :�.:.. .. .„ : .:' :: !'.4 � '�'�.� ' ' ,; :�. 4rd'i� �..r'��....ti '" P.na+� .. ._ - ; ._ - � � - .. � - .. � � •. , •-• -{ •'•r i i �� y r ..i ! 1 . ' � ;:. �. L �.: � ,..� � 1.,. it .+1 �_ = i. F{ 1 � •� # .�. (+ t,. 1F i..1 J 7. r��'jjj a r-�—t f i �� Is ! 1A y� tf t i• �, • .i. ,.. ! ? .�.. f...! is .�..�.� 1 ;+.'_,_•t�t��_ � � �' � l ? r Grayling Test Information Table I 2/2 3/7 2 Test Before Shut In Test After Shut In Difference Lost Well Date Gross Net Water Date Gross Net Water Gross Net G-2 1/3/72 4486 4441 45 2/8/72 4338 4292 48 148 149 G-4 1/17/72 5405 5000 405 2/14/72 5236 4796 440 169 204 G-6 1/16/72 4709 3814 895 1/30/72 4153 3322 831 556 492 G-8 1/13/72 1988 1312 676 2/10/72 1832 1136 696 156 176 G-11 1/9/72 4981 4975 6 1/30/72 4482 4478 4 499 497 G-15 1/15/72 4420 4327 93 1/25/72 4320 4212 108 100 115 G-32S 1/14/72 2623 2618 5 1/30/72 2361. 2359 2 262 259 G-33L 1/11/72 2747 2744 3 2/8/72 2485 2483 2 262 261 nl' Robert T. Anderson District Land Manager Union Oil and Gas D on: Western Region Union Oil Company of California 909 W. 9th Avenue, Anchorage, Alaska 99501 DIR�'p',:� L_. Telephone: (907) 279-7681 C. GEOL' I C. ENG I 1 ENG I I 2 ENG n ` 3 ENG uni ,6 I 4 ENG I 5 ENG I 1 GEOL I October 12, 1971 2 GEOL 3 GECL REV of AlaskaOil L—T-'—D-�R�AFT- SCState and Gas Conservation Committee 3001 Porcupine Drive FILE: Anchorage, Alaska 99504 Re: MCARTHUR RIVER FIELD STATE OF ALASKA Conservation Order No. 95 Gentlemen: Enclosed is additional engineering information in support of the application of Union Oil Company of California for extension of Conservation Order No. 95. Very ru 11-y yours, Wade S. McAlister Landman WSM/sk Enclosure C., ,. cc: Working Interest Owners Trading Bay Un i t w/Enclosures TRAD i NG BAY UNIT COOK INLET, ALASKA CHAIRMEN SUBCOMMITTEES ENGINEERING & PLANNING Mr. C. J. Diver Marathon Oil Company -- P. 0. Box 2380 Anchorage, Alaska 99501 rani nr_ i rni Mr. H. C. Lee Union Oil Company of California 909 W. 9th Avenue Anchorage, Alaska 99501 LAND -LEGAL Mr. R. T. Anderson Union Oil Company of California 909 W. 9th Avenue Anchorage, Alaska 99501 ArrniIHTI nir_ M r . C. E . Newg reen Union Oil Company of California P. 0. Box 7600 Los Angeles, California 90054 OPERATION Mr. E. F. Griffin Union Oil Company of California 905 W. 9th Avenue Anchorage, Alaska 99501 MANAGEMENT Mr. W. C. Barton, Jr. Union Oil Company of California P. 0. Box 7600 Los angeles, California 90054 TRADING BAY UNIT COOK INLET, ALASKA MANAGEMENT COMMITTEE Mr. B. G. Howard Marathon Oil Company P. 0. Box 2380 Anc!-io rage , Alaska 99501 Mr. 'I C. Doughty PI-1 i 1 1 i ps Pet rol eum Company 1300 Security Life Building Denver, Colorado 80202 Mr. W. C. Barton, Jr. Union Oil Company of California P. 0. box 7600 Los Angeles, California 90054 Mr. C. V. Chatterton c Standard Oil Company of California P. 0. Box 7- 839 Anchorage, Alaska 99501 Mr. H. A. Slack Atlantic Richfield Company P. 0. Box 360 Anchorage, Alaska 99501 Mr. W. M. Jones Amoco Production Company Security Life Building Denver, Colorado 80202 Mr. F. L. Franz Skelly Oil Company 1860 Lincoln Street Denver, Colorado 80203 ENGINEERING REPORT IN SUPPORT OF THE APPLICATION OF UNION 01L COMPANY OF CALIFORNIA FOR EXTENSION OF CONSERVATION ORDER NO. 95 BY GARY S. WAY The Trading Bay Unit is producing above bubble point with pressure main- tenance by natural water influx and water injection. As a result, the number of wells producing water has steadily increased and will continue to do so throughout the project life. In addition, the volume of water production can be expected to increase as more wells produce with in- creasing water cuts. The attached Exhibit I depicts the following: 1. total completions with dual producers counted as two completions, 2. the number of completions producing in excess of one percent water and 3. the percent of total completions making in excess of one percent water. This graph clearly illustrates the trend toward greater water production which the Operator believes is also a trend toward greater potential damage from drowning of oil productive sands during shut in of water cut wells. The justification for including wells -with only one percent water cut as water productive is two fold. First, history has shown that shortly after cuts reach approximately one percent, there is a rapid rise in water cut. Second, production profile logs and pressure surveys have indicated that water tends to accumulate in the casing opposite the producing formation even for low cut wells. The amount of this accumulation is a complex function of fluid production rates, produced fluid densities and casing size. Exhibits II and III are similar sets of working graphs on wells Trading Bay Unit State G-? End G-8, both on the Grayling Platform. These graphs are plotted routinely by Union's reservoir engineering technicians for us by engineers when analyzing field and well performance. Both are broken line graphs of actual well test data dating back to initial comple- tion of the wells. On those graphs are noted the occurrence of shut ins and their duration beginning shortly before the wells began producing water. Both show the detrimental effect on production when water cut wells are shut in. It is Operator's belief that loss of productivity resulting from shutting in such wells cannot be helpful and could contribute to reduced ultimate recovery. Engineering Report Conservation Order No. 95 2. October 13, 1971 Exhibit If shows that Trading Bay Unit State G-2 began producing approximately one percent cut in the second quarter of 1970 and this began to increase rapidly in the last half of that year. A 15 hour shut in on March 18, 1970 and a 13 hour shut in on May 22, 1970 had little effect, if any, on productivity as evidenced by tests immediately before and after the shut ins. This well was making approximately one percent water at the time. An 18 hour shut in on July 14, 1970 appears to have caused a reduction in productivity, at which time G-2 was producing with 6 percent cut. The 25 hour shut in on Septembe 16, 1971 definitely caused a reduction in productivity. At that time, G-2 was producing with approximately 11 percent cut. Exhibit III illustrates behavior in Trading Bay Unit State G-8 similar to that seen in G-2 above. Shut in periods during July, October and December 1969 appear to have resulted in definite losses in productivity. This is also true for a shut in in March 1970. Subsequent short term shut ins had 1 i the per- manent effect suggesting that the first few times drowning occurs is when the majority of damage is done to the,wellbore; however, later longer shut in periods increase the radius of damage. Note that damage to G-8 occurred at cuts below 5 percent. 6( Dg 5( z 0 u C z 0 Z d 3( u X 2( H 1: Y W I PZ I T I __Hl STOR-Y--OF, WATER.LG U T--W Ell- ------------- BAY -McARTHUR:RIVER :HIELD-' _ __,___ _. _ __ ._ __ G K —1 N E E T SK A L _-A- ----G S- E�F_ 10 7 1. ---- — ------ F_ _.T7. ...... IiJ_ I- J —I-- _J ............ . .. 4 =T­ IL .... . . .... 0 ph i:,-,i -n El- d e _S_ 14 ------ .......... — o n we I I J­ 4 .-H =4 L -7-t- al nu r o-r b e►^ -O.t e -0 rFS7 ...... .... ...--C()M 1. 7 77 ce- n t --- a c rn . _4 1 4 -producing ...... . ............ M . .. ....... I 0 s. .. .... .. . r6duc )a. -ter < W 0 7- C 19 67 19 68 1969 __—F 19 70 19 FIEL IWIL .04017- zr, 100 T —.r.- — --r. --,F-: I T vi ri.l. -A F to... ... .... .. . .... .... .... 7 ..... .. .. ........ .. . .. ..... ............. ..... ..... .. ..... . ........... .... .. ... .. A 9560 9G85 LEASE ilm P1 u'-.x- A,-I,—J.T 'a�j�UR RIVER -7 4 v L L o G 2 .. ... .... .. L 4' CL E.... ...... l �7 T. . . . . . . . . . . . . . . . . . . . . . . . . - - - - - - - - - - - -- - - r ... . . ....... [7.7 J ::A a I F7 . ... ... ... ....... ..... .... a .0 'o ac:o 7000 fl3co 5000 40i3 . .J C2 rt O 5000 Boo 0 1 700 CA 600 'Da -1Z CIO . . . . ........ ........... .... 100 ........ 20 25 5 10 15 20 25 5 10 15 20 25 5 10 15 20 25 5 lu 13 ;0 zs ; �1013 25 5 .:, 1!, 20 25 5 10 15 k.0 25 5 10 15 20 25 5 0 15 20 23 5 to 15 zo Z5 to J ; ULY AUGUST SEF'YErABER OCTOBER NOvEMBER DECE&-VER__ i—"O. ,us "2ROY FEUPI;Any MARCH APRIL MAY JUNE I F014M 79DO IFkXV A/671 1967 - W,11 T.sLs NkUU. INT. • e THUR RIVER `�-� U�• ^ � )' � � t FIELD _MCAR 9705 LEASE RADII: A: UI::IT. _ 100 Li;^.E % _1'GMLUC:K ----r••-'1- '!-'-j- r ..{,.._,.,, ,., t„•,•t .., rrtLL NJ. V � � 3;�'�` t {TR, I�t Rr�> rai n1-1 T rr :rat,.-i, ..� ..(- , 1,.,,ai...I,.,al. I .,.. ,!rlla.,.•..!. .la I: L. ,. t ^�t M ' W _1 -I i i - .} .�.....{_... _Ai I .I• - -- - -�• �- 1- - •{:-- 1i _ .I i-• I , I. I t �.: I I I. If }....� I 1' ,.,CL t . ; I - I ' I.: .( i I I I 1 ! I I i' ! �' , ! ! + I t• , I ... , .1. , ! W - � --io G. I1 � I / . � � � ? I i I � , .{ I .��•' i ' I I .� .� (. ; , I ! i .. i , . I .. .i a of— cr F,�tOU> ' �~`'�jN'I.: i�} •�j .I- ,. :1, (.. ;I ,.:.,'^ �tT 1_ •.,-�T�,�•�; -- r -r- .I.., ' , I.: is 1' .1 1 f• I I' ►: I10 •'( I .:. �. .,.. - -I ! 4000 C — - ! I r ! 1 - y0 -..I-. .�-..:I..:.. 1 i ; ; ; �• .I { ., ; , !- ; -I -I I ! ! ! I�_ ! '- :I , �; - ���• !' _ �! I I ( 1 i .. 2000 V _ i , Z -i ! ' - I _1 �._I, 17, ,-' I i i_ -' ' ' i• ` .-�_--' I I i--^1'-• ' ' ._..,._.. I .ate. —I_ I_i_ ! _i-._r_... ... 1 - � ' I ! i � ! � I � ! ' ! !: I. t i� I 1 i I 1 i. � �� I I• I I' -I I i I I � �_ i 1' ' ' 1 I 1 I. o Q� IOC _._. - - , ;. I. ,. .!. I ! - , I I• I ( I !- - ! ! I ' ' , i 1.. .� ! , I ! ! ' ( I r V l�ilC - -- __ - .- _--h—_r _.»_ tY-•.±_-.., I:• . 1 I ' '�_ _ I _ ' , I _i ' .I —' 1 - 1 I r tcr I AL e i— 1 - r--' - -- ec _ _ __ __ , 1 � -- i � i ;�i I:... f � --r--- I I j —!- ! I � r-- •f i-----�--r—T_""'__ __.. � � --- - 7co v, i t— •-!-- a • -- ..-4- q i I CIO - -� -• - �- •._-..__,.._r _ _ ;._ _� _.; I !. I - I. I I I ti I' 1 iG - --- - ! ! ! ! r I I I ! I• -� ' - ( ' -- ! 1 �_. — _�__ S 10 15 20 25 S 10 15 20 .5 S +O 15 20 25 S 10 IS 20 25 •_1 -'--- ---A-- ' - -_---- !OJ - 70 2S S 10 IS 2J 25 S 10 15 20 25 S 10 15 20 25 b 10 15 20 25 6 10 15 20 25 5 10 15 JG 26 5 10 IS 2C 25 JAMUARY FEffn UwnY MARCH APRIL 'MAY DUNE DULY AU6U5T C.EP:fMBER OCTObER NOVEMBER OECEMOER - FORM 79>lO IRlV 2/97) - i9 68 - W:.11 is sts l' I UMcArthur River . D 100 ........ t F!"T 13RAVJTY LE -SE lr3a-:,c nay Unit A .. ... .... ... .........•... .. .... ..... .. . ...... .. ... ' t ' - i i, I 1 I ! ' I .I I i I ; j I I ' I -�� '' I' -i-•' r 't r" f '- j f -� t - --- - - - - - - - - - - - - .......... ­.. 40 - )3b 34 A 7 77; T':'�7 7.T. ... .... j. ... .. . ......... ........ .. t 600 20000 w. a .. ..... ... .... . .. ..... ...... ....... %6 . . . . . . . . . . . . . . I. I i I .j .- I ., .I. , 1 !- y ! ; 1 1 I I 1 ,- •, i .(...L. i - ..... .... . ... .... . ... .. ..... ............. ......... i—A -j .. ... .... 7 too, (a f Q, ... . .. 000 ... ...... 71 m --------- ----- - --- - ------- scoo a V, 7000 70C, ------ ...... ...... ..... ... ....... d. 1 1 V . ...... Scott Goc ..... A J—* 5, soc -7 4 ...... .. . .. ...... . ... ... a In 5 coo 7- A.... .... 1. jjp�l U. 1101 200o--------------- 2OC9 + f.. .. .. .... .... .. loet Oct .. . ..... ...... . .... ... 0 ------------- ....... 600 700 r TCA 600 .7. .......... r j- ......... . .... ------ a &0 t 17 m 2CA 7. CIO 7 ... . ...... -4 .. ........ . .... .... .. v 5 10 IS 20 2 -A 5 10 1- 2 C, 2 r 5 2to 6 10 15 20 25 5 10 15 20 25 5 10 IS 20 25 5 10 15 zn 25 5 10 I'S 2U 25 5 10 15 IU Z5 5 10 is 20 25 S tU Idj ?o 23 -0 25 JAMUARY MAkCF4 APRIL MAY Jl,ho JULY AU:I,-ST III '- Ill L, U E R OCT03LA NOVEMBER DLI:E)ACE.q N PRODUCTION RATE - B/D PER CENT CUT P 0_0.1^, cc i t 1• 1 '�� y -i- - -- - -. t- ---� I 1 7 7- _ p-- - - - - --.. T_ I .. __..1--• t--7..... !__ 1 ; .. =3 me sr _ 1 , ! 4.7 T .', I.._ } I As. µeSit".::- 77. > O t I 74 1, f , 1 - V 7-7 - ff O O O 4 O p O O it AO GAS - OIL RATIO - CU. FT. / BDL. PER CENT CUT I c._ PRODUCTION RATE -B/D PER CENT CUT w M V + u • V • tl 0 _ M u ♦ a • V • tl O C, J O 1 O n I � ' 1_ .i. .7 A 17 ;-- — __ :_.. I A« I --�' .--— I i -- — - - - - --� I I - --- --- - is - - f- --- :l 1 I 771 17 4+91 -•I - # f..1 1 1. -- 1 N I— i 1 . 1 1 , 1! i,--i- 3 1 �._: , � I I � } 177. 7. — = ` — — 17-7 -- I i. . ii -- -- . _ --- -- _ is i _:1 , — -:� �� . —= �3 1 , {{ - t • ' 1 •1- r I I ' , } I � i i• I 7. _ c : U y,I • N _.• M_� O p O � 0^ 0 0 o L o ti c> o o c; .� o 0N v o o u o J ' v GAS - OIL RATIO - CU. FT. / 1IBL. PER CENT GUT z Li IY ui 0. FHOU IN(. 'RAD"',3 -'A" UNU McArthur Rivor r A � -C ALLL No too 1 171 14 A, i i i ` i I 1 ! I t i+ ' ( { I l I.• � j j t i j, i , I i , j l I � I i i � j , i .. j1 � i p 1 I i i ' i I I'I I i l ii I! I , I R i I 0: i 1 , .I , i I ! I ! I., 1 �,...I. ... ... Ea. a CT j ....... 0 ...... - ----------- --- ... .... 7. ........ ....... F:77-f.: :-"7717T... F. T. . ...... ... ......... . .... . a ...... ..... . .... .... . .. . .. 1.7 4 L . .. . -: "-: -: --i --- ------------ d A - - - - t- - �_ , ! , 14 ...... ...... .. ... ..... ... . .... . 14 to 0000 8000 7r T 00 rT: m :7! �7. 7—, f- ...... .. .... ... ... .......... 403-0 ... ....... - ------ -7. m -7— -- ------ 3, ...... -- ------- t 3000 m I i. ...................... ...... I.: . ...... ------- L i 20010 V; + 4i 'COO 5:0 A ... . ....... . . ....... . .. 0 a j T—r- t ...... A :I . a A 7—....... ...... ........ . ...... ':' 7'7—' .....`. ' ,. ' .' _ i. .; i ; f 2C COR V: T ........... .. ..... ... . 7 717 t r -7 a I ! i ; :� ;a 10 100 f5 20 3 �) 15 20 t; 5 10 i2o 25 5 to 15 20 25 5 10 IS 20 25 a IQ Is zo 25 5 to Is zo 25 5 to 15 20 25 5 to 15 20 25 --57-10 15 20 25 3 IS ?o 25 5 23 25 o 5 1r ;.014JAn#' MAUCH AFRIL MAY Jullf; JULY AUGUST SEPTLMSER OCTODIEA NOVEMBER DLCr)-azA 19__o WELL TESTIS McArthur Viver 1rddim, any'Lt..[Fi E 1. 1) LEASE H. t J too .......... r-1 -.1 ...... .. !.,T[llr T11, 11- -111 . -:1 " �] - -.1 1-- - v - r 740 -IT171 GRAVITY . ::�: ; � . 1iI 1 ; � I! 41 � {.. 11II( I � I i ! � 1111 � ►�. ( . � ; ,. �. � .�. ' .,. ; .., , .j . .......... ..... 77-7 ........ ... . ........ ...... . . .. ... . ...... ...... . . .. . ........ .... . ... T:. 2o030 . ... .. ..... ......... . ... ......... 7. . ....... .... ... ..... ...... .. ... .. Jw ............ ........ ....... ....... . ... .... ... ...... .... 100110*' —------ ...... - ------ ... . ........ . . 7000 ol: m i A. m 5000 A. .......... 4CCC J -4 B/D . .. . . . . ........... - - ---- -- 3000 A.... .............. L6 Cm 2 01:4 ....... z C-1 0 :3 w '�1.,. .. .... 4--4- ........... . ... ...... .... .. . i. 0 0 A . + Cr 030 lCil 0 - — -------- - - - In q r. 00 . ......... ....... --'-7r7 - ---------- .. ......... F 4 f 4 - ......... ...... ... 1-7 lCO 2C4 - ... —L-4— lit I 10 -•5 io Is 20 25--1 3 JU 25 5-10 ir do 25 5 10 15 20 25 5 10 15 20 25 5 10 is 20 25 5 to 20 To 20 25 5 TO 15 20 25 5 10 15 WO 25 5 to is 20 JAN�AAY FLU�,,AFIY APRIL MAY JUNE JULY AUGUST S-EPYEMBER OCT08ER NOVIEMBEF naIu/ rseT nxrux rmxo/wmm«v Mr too 40 � " ^ " � ^ � . ^^—�^—�--^—�'^�—���--�c��� �� 200(0 | Li 20000 14 7000 � � � ° ~ . .~ � z000 cc loce 8 � cc � . � � C) 3C4 A. \�~ T RA D 1; 4 "'3 --AY UNIT 7r-r— ]IT. a .... ii 3b a Ip u S= �--�• :....� � Ii Ii�►':��� � ���iilI��1ii,,�;���;.;�Ii�� f � '� . . .... ..--. ....• .... .... --- -.. .... .. f i28 cWi ELI .. .. ... . .. .. .... ... . I L I. . .... ... ... ............... . i ..... .. . . . . . . t . . ... ..... ...... .. ..... ... .......... ......... .... .... ........ ... TV . . ............. ..... 20OW . .... ..... ......... . . .. ........ . .... ... .... .......... QQ t ............ r. T. f 100 qv 0000 A ----- - ----- 8 01 9000 7000 a ficco f 7 77- ... .......... 7- .400t .... ..... - 000 ------ ...... 1za -- F N. 50-:-0 I 61 MT . :p .......... .. .. ... ..... I 0 .................. ...... . . D 10C - - _ - - - ' - I I ! ' 1 -,+-j i '_ _L. •� ' ' ..._1..._1 - - 1 -- - - I I , j I i ! i ; ;. •-1.- .i.: I i .i I . l I .�� -7 '000 a goo c ----- ------ -)00 - • 700 to r-7:• ------- - 60.0 500 4' .. .... t Do . ......... — ------------- ....... — ....................... . . .............. 1. !C0 .. .. ......... . ....... .. . 7 all .... .. . ....... ... ......... . . ... .. . ..... 200 "7 ... A Ic 5 10 i5 20 25 5 10 15 ?a 255 to 15 20 25 •5 10 in 20 25 5 to 15 20 25 6 10 15 20 25 Z 10 Ib 20 25 51 10 15 ko 25 5 10 Is 20 25 & IV le .15 �Oo 0 JANUARY MARCH APRIL MAY JUNK DULY AUGUST 6LPTE14SER OCTOaCR NO,EMDLR CLCIII.M&ER FORM 71,30 Imav 3/47) 19. '71 Union Oil and Gas [ ;ion: Western Region Robert T. Anderson District Land Manager F1 D!R � ;� C. GEOL C. ENG 1 ENG 2 ENG 3 ENG 4 ENG 5 ENG _i_ 1 GEOL 3 GEOL�I— REV DRAFT SEC FER, Union Oil Company of California 909 W. 9th Avenue, Anchorage, Alaska 99501 Telephone: (907) 279-7681 union Application for Extension of Conservation Order No. 95 Gentlemen: October 7, 1971 A � /A L76.� State of Alaska Oil and Gas Conservation Committee 3001 Porcupine Drive Anchorage, Alaska 99504 Union Oil Company of California as Operator of the Trading Bay Unit, requests extension of Conservation Order No. 95 in accordance with Rule 8 thereof. It is a widely accepted fact in the petroleum industry that drowning of oil productive intervals by either formation or injected water can cause wellbore damage with resultant loss in productivity and potential loss in reserves. Such damage is impossible to prevent but it can be minimized by minimizing downtime and operating fluid levels. Many Trading Bay Unit wells now produce water due to natural water encroachment and water injection and several have sustained water damage due to unavoid- able drowning. This problem can be expected to increase with time as both the number of wells producing water and the volume of water produced will increase. To reduce potential wellbore damage the Trading Bay Unit sub -operators have sought to use gas well gas for gas lift on an emergency basis in event of gas lift equipment downtime. Exhibits 1 through 3 are tabulations of occurrences when gas well gas was utilized for lift purposes pursuant to Conservation Order 95 on the Dolly Varden, Grayling and King Salmon platforms, respectively. These tabulations show by date the amount of such usage and the reason a compressor or compressors was inoperative and unable to supply 1 i ft gas on the platforms. Exhibits 4 through 6 are plots of the cumulative hours per month that the gas wells were utilized for lift purposes on each of the platforms. Exhibits 7 through :9 show this same information with the hours cumulated by quarters. Conservation Order 95 provides gas well gas may be utilized for lift purposes up to 15 days or 360 hours per quarter. These exhibits show only one instance in the past year, while operating under the provisions of this Order, that necessitated approval of the Conservation Committee to exceed the allowed number of hours. Had the FiEld been operating under the provisions of Section 2158 (b) (3) of the Conservation Regulations, there would have been 6 months which would have required Committee approval to continue the use of gas well gas. The total amount of time during the year which required the use of gas well gas for lift purposes can be seen from the exhibits to be relatively small. In reviewing the tabulated information, it is apparent that most instances during which a compressor has been inoperative have been completely nonpredictable. Scheduled maintenance and overhaul time is a relatively minor portion of the total compressor downtime in practically every month. This indicates that the use of these gas wells for lift purposes is being held to an absolute minimum by the operators. For operational flexibility the tabulated and graphical information attached indicate the desirability of continued operation under Conservation Order 95. There has been very little use of the wells over the amount provided by Regulation; however, the ability to cumulate hours has reduced significantly the number of instances during which adminis- trative approval would have been required. This serves to reduce the burden placed on both the operators and the Conservation Committee for consideration of individual occurrences without risking waste or damage to natural resources. Technical information and exhibits submitted in this application were prepared by the Trading Bay Unit Engineering and Planning Group. Members of this Group are available to answer questions upon request. Your approval of this application is respectfully requested. Very truly yours, UNION OIL COMPANY OF CALIFORNIA Un i t ,Operator B Wade . McAlister WSM/s k Enclosure cc: Working Interest Owners Trading Bay Unit w/Enclosures M MARATHON MARATHON OIL COMPANY PRODUCTION —UNITED STATES AND CANADA December 31, 1970 Mr. Homer Burrell Department of Natural Resources Division of Mines & Minerals 3001 Porcupine Street Anchorage, Alaska Dear Mr. Burrell: P.O. BOX 2380 ANCHORAGE, ALASKA DIRif IC.GEOL� C. cN1G-�� —I- i- rNG —i `I\i-J v Ji C CCi�rE�;: --F (LE: ---- ` This letter confirms the telephone conversation between C. J. Diver and you'December 30, 1970, during which Mr. Diver requested that an emergency order be granted allowing an extension of the time allocated for usage of gas well gas for lift purposes to prevent possible well bore damage. During production operations on the Dolly Varden Platform in this quarter, the gas well (D-18) has been utilized for gas lift purposes a total of 357 hours as of midnight December 30, 1970. Since this quarter ends at mid- night December 31, 1970, this emergency extension would be of a 21 hour duration. This extension is necessary so that gas from 0-18 can be used to supplement the gas lift system until repairs to Compressor Unit 1 are completed. Mechanical di f fi cut ti es with this unit were experienced early on December 28, and a diligent effort has been made to expedite the repairs. Parts necessary to complete the repairs were ordered by telephone December 28 and shipped by air freight. However, the parts were lost in transit delaying the work for approximately 36 hours. The necessary parts have now been received and a factory representative is currently completing the repairs. Attached is a summary of the gas usage for this quarter prior to the compressor failure on December 28, 1970.�" attachment Yours very truly, ,. 9: G. Howard District Operations Manager R Ii Ay ' 04V11b1+,-;N OF ()iL A al.) GAS ANCHQRAr* 04V11b1+,-;N OF ()iL A al.) GAS ANCHQRAr* GAS WELL GAS USAGE Third Quarter - 1970 60 hours During this period Compressor Unit 2 was down to install anodes in the heat exchangers on the cooling skid. Anodes are necessary to prevent excessive corrosion in the sea water to gas heat exchangers. 46-1/2 hours Revisions to the platform cooling water system and the installation of a 400 HQ booster oil shipping pump re- quired the gas lift compressors to be shut down during this period. D-18 gas -was utilized to lift several wells while these modifications were being completed. 30 hours A gasket on the fuel line to Compressor Unit 1 failed allowing gas to escape into the room. The gas ignited and was subsequently extinguished by an automatic dry chemical and water system. It was necessary to change spark plugs, ignition transformers and thoroughly clean the engine prior to restarting. The gas well was utilized to supplement the gas lift system during this period. 172 hours During the past quarter, gas from the gas well was utilized for lift purposes 172 hours while performing minor repairs and routine maintenance on both compressor units. These repairs include changing spark plugs, ignition transformers, suction and discharge valves, pistons, gaskets, etc. 23-3/4 hours The gas well was utilized to supplement the lift system for an additional 23-3/4 hours. During this time either one or both compressors was down for miscellaneous reasons which include power failures, high or low levels, and high or low pressures. r .wwr DOLLY VARDEN PLATFORM GAS WELL UTILIZATION FOR GAS LIFT EXHIBIT ] DATE HOURS REASON 1970 Oct. 1 1-1/2 Electrical malfunction in emergency control panel. 2 7-1/2 High liquid level in fuel system, and repair compressor cylinder valves. 3 12-1 /2 Mechanical repairs on C/B #1 . 7 3 High liquid level in separator, and production shut down for construction on shipping line. 9 13-1/4 installing shipping pump, and broken starter on C/B #2. 10 4 Repairing starter, and tightening gas leak on lst stage suction valve. 11 2-1/4 t Power failure, and work to stop gas leaks on compressor cylinder. .12 1-1/2 Taking web deflections on C/B #2. 13 4 Power failure, and repair gas leaks on C/B #2 compressor cylinder. 18 4 Power failure, and because of malfunction in scam panel throwing emergency breaker. 20 2-1/2 Repair water leaks and change spark plugs on C/B #2. 23 5 Replacing valves in compressor cylinders on C/B #1, and high explosive atmosphere in shipping room. 25 3 Replacing compressor cylinder valves. 26 1-1/2 Replacing head gasket on #1L power cylinder on C/B #i. 27 3-1/2 Replacing C/B #1 head gasket, low lst stage suction on C/B #1, and high level in suction scrubber. 29 1/2 C/B #1 down on high pressure shut-in. 31 3-1/2 Changing plugs, fuel and start-up problems. Nov. 2 2-1/2 Power failure, and starter repair. 3 7 Numerous no -indication shut dol'Ins on C/B ;!l and to fix gas leak on lst stage after cooler, C/B #2 down to change plugs and low tube oil pressure. DOLLY VARDEN PLATFOR14 GAS WELL UTILIZATION FOR GAS LIFT DATE HOURS REASON 970 Nov. 4 6 Construction to tie in sand filters, repairing compressor #1 engine. 5 1 Repair 1st stage blow down valve. 7 6-3/4 Tie in compressor cooling water lines, and high jacket water temeprature. 9 1/2 C/B #2 down to hook up torque limiter. 14 7 C/B #2 down - ignition problems, and high 1st stage discharge pressure. 15 1 Ignition problems on C/B #2. 16 5-1/2 Replacing compressor valves on C/B #2. 18 1-1/2 Replacing ignition transformer on C/B #1. 21 11-3/4 Construction - connecting salt water cooling lines to system, repair gas leaks, and high jacket water temperature. 22 2 Construction - connecting salt water cooling lines to system, repair gas leaks, and high jacket water temperature. 23 10 Construction - weld-10" water line, starting engine, blown gasket on manifold feedinq gas valve on #3L power cylinder which ignited causing Fire Boss system to activate. 24 20 Cleaning C/B #1 of Ansul powder, replacing ignition transformers and plugs. , 25 3 J Changing out C/B #1 ignition transformer. 26 12 C/B #1 down 3 times on No -indication shut downs and shut • down because of knock in cylinder #5 left. 27 9 C/B #1 down to check knock in #5 cylinder. 28 14 Replacing gas injection valve, head gaskets, and exhaust gaskets. 29 1-1/2 Change spark plugs. 30 4 Repair Turbo assist, high pressure in vent scrubber, and repair lst stage discharge regulator. _2- DOLLY VARDEN PLATFORM GAS WELL UTILIZATION FOR GAS LIFT DATE HOURS REASON ' 1970 Dec. 1 2 Change spark plugs. 2 4 High lst stage discharge pressure, and low lst stage discharge pressure. 3 15 Replace head and Exhaust gaskets, plugs, and unloader valve, low lst stage suction pressure, relay failure in Scam panel., 4 3-1/4 Change spark plugs and 3rd N-Ldge unloader valve, low lst stage discharge pressure. 5 3-1/2 Weld collars i n- glycol lines and high 1st stage discharge pressure. 7 7-1/2 Low lst stage discharge pressure and starting problems, power failure. 8 2-1/2 Changing ignition transformer and gas valve. 11 71 Welding glycol unit, change spark plugs and starting fuel valve, repair gas leaks on compressor cylinders. 12 7-3/4 14 1/2 Power failure. 15 6 Construction - installing anodes in cooling skid exchangers. High jacket water temperature and valve repair. 16 12 Working on cooling skid exchangers. .17 24 Installing anodes on cooling water skid. 18 18 Installing anodes on cooling water skid. .22 11 Repair suction unloader valve and explosive atmosphere in. #1 compressor room. 24 3-1/2 Faulty governor and low 1st stage discharge pressure. 26 2 Low 1st stage and low 3rd stage discharge pressure shut- down. 27 17. Bendix out of Turbo and broken piston. DOLLY VARDLEN PLATFORM GAS WELL UTILIZATION FOR GAS LIFT DATE HOURS REASON 1970 Dec.28 5 Power failure to control panel. 30 10 Repairing Turbo assist. 31 24 Repairing Turbo assist. . 1971 Jan. 1 24 Repairing Turbo assist. 2 24 Repairing Turbo assist. 3 9 Repairing Turbo assist. 5 1 Power failure. 6 8-3/4 Power failure 1 hr. , repair gas leaks and replace head gaskets 7-3/4 hrs. 7 7 Changing plugs and transformer on C/B -#29 and high pressures and levels in separators. 9 16 Power failures, repairing fuel gas valves. 11 3-1/4 High jacket water temperature. 12 3 Replace head gasket, high jacket water temperature. 13 8 Break in water injection line caused short in gas and fire detection systems. Change spark plugs and transformer. 14 2 Repair line on water injection system. 17 10 Contaminated .ai r in fuel gas regul ator ' caused low fuel pressure causing load shed. Repair leaks in compressor cylinders. 18 5 Repair 1" bypass line from 3rd stage discharge to 1st stage suction. 19 6 Loose piston rod on.#3 compressor cylinder on C/B #l. . 20 4. Replace valves on 3rd stage compressor cylinder. 21 13 Repair gas leaks and replace #1 compressor cylinder valves. r 4 I DOLLY VARDEN PLATFORM GAS WELL UTILIZATION FOR GAS LIFT DATE HOURS REASON 1971 Jan.22 4 Power failure. 23 2 Low lst stage suction. pressure. 26 2 Low lst stage discharge pressure and replace gas injection valve. , 27 7 High liquid level in 2nd interstage scrubber, frozen drain line, and replacing valves s 1st stage compressor cylinders.. 28 2 Power failure, and low suction pressure. 29 4-1/2 Repairing fuel gas regulator. 30 4 Down 3 times due to low suction pressure and once due to low fuel pressure. 31 2 Low suction pressure. Feb. 1 3 High temperature in #4 compressor cylinder, and low suction pressure. 2 6-1/.2 3 9 Power failure caused by malfunction of control valve on D-18, low 1st stage suction pressure. 5 11-1/2 Repair valve in #5 separator, replace 3rd stage discharge valve, repair starter, and electrical malfunction. 6 18 Repair compressor valves, low suction pressure, replace plugs, transformers, and dry out engine after fire water ' deluge. w 7 4 Repair Traban unit, high temperature on 7#4 compressor cylinder, and high discharge pressure. 8 ` 9 Repair compressor valves. 9 3 Change spark plugs. 10 .2 Change plugs and fuel gas valve. 11 9 Repair Traban oiler, low 3rd stage discharge pressure. DOLLY VARDEN PLATFORM GAS WELL UTILIZATION FOR GAS LIFT DATE HOURS REASON 1971 Feb.16 6 Low instrument air causing power failure. 19 4 Recalibrate pressure shut down switches. 20 1-1/2 Change plugs and service pulse generator. 21 1 Power failure. 22 3-3/4 Explosive atmosphere alarm, and construction in compressor room. 23 4 Change plugs and clean air intake filter. 24 5-1/4 Construction in compressor room. 25 10-3/4 Explosive atmosphere alarm, construction in compressor room, high jacket water temperature, and low lst stage discharge pressure. 26 5 Replace head and fuel gas valve. March 5 20 Replacing cracked pourer cylinder. 6 19 Replacing cracked power cylinder, also controller on sensing line to the flare scrubber froze. 8 8 Change compressor valves and repair leaking valve caps. .Knock in compressor cylinder on C/B #1. 12 2 19 1-1/2 Plug change and compressor valve.repair. 25 10 C/B #2 down to repair lst stage discharge bottle. 29 1 Installing repaired lst stage discharge bottle. 30 5 Replace exhaust gasket and adjust ignition system. April 1 3 Replace head gasket on power cylinder. 3 11-1/2 Change plugs, balance engine, and replace piston. 4 22-1/2 Replacing cracked power cylinder. 6 DOLLY VARDEN PLATFORM GAS WELL UTILIZATION'FOR GAS LIFT DATE HOURS REASON 1971 April 5 24 Replacing cracked power cylinder. 6 24 Replacing cracked power cylinder. 7 24 Replacing cracked power cylinder. 8 13 Complete repairs and inspection. .9 4 Repair temperature on jacket water system and repair fuF-1 gas regulator. 10 7 Installed new fuel air ratio controller, reset engine timing, repair torque limiter. 15 9 Construction - start up problems after platform shut down. 16 8-1/2 Replace power piston and 9 cracked heads. 17 1/2 Two power failures. 18 22 Replacing power cylinder heads. 19 24 Replacing power cylinder heads. 20 8 Complete repairs on C/B ni. 23 1 High jacket water temperature and start up problems. 28 1-3/4 Change spark plugs. May 1 2-1/4 Change leaking compressor valves. 5 1 Repair gas leak in compressor #2. 6 1 ,Checked high pressure shut downs on shipping lines and on vessels in production -room, and change plugs. 7 7 Down numerous times while welder worked to change out „cooling water pump beneath C/B nl. 8 8 Replaced head gasket, spark plugs, and made other adjustments because of 3 no -indication shut downs. DOLLY VARDEN PLATFORM GAS WELL UTILIZATION FOR GAS LIFT DATE HOURS REASON 1971 May 10 2 Replaced compressor valve and electrical problems. 15 3 Changed spark plugs on C/B #1. 16 2-1/2 Replaced exhaust gasket on C/B 7171. 17 7 Replaced 0-rings and gaskets on C/B #1 compressor cylinder. 21 3 Replace transformer and exhaust gasket. 24 1-1/2 Power failure. 25 -1/2 Low 1st stage discharge pressure. 26 3-3/4 Repairing and synchronizing generators. 27 3 Replacing compressor valves. 28 1/2 Accidental shut down while repairing gas detector. 31 1-1/4 Changed spark plugs on C/B #l. June 1 1 Changed spark plugs on C/B #2. 10 1/2 Repaired leaking gas valve on C/B #1. 12 5-1/4 Installed exhaust fan in compressor room. 16 10 Changed lube oil on C/B #1. 18 1 Repair leak in 3rd stage cylinder cap. 22 4 Check and adjust piston clearance on #3 compressor . cylinder on C/B #1. 24 1-1/2 Changed spark plugs. 26 24 Major overhaul of C/B #2. 27 24 Major overhaul of C/B #2. 28 24 Major overhaul of C/B 1#2. 29 24 Major overhaul of C/B #2. 8 DOLLY VARDEN PLATFORM GAS WELL UTILIZATION FOR GAS LIFT DATE HOURS REASON 1971 June 30 24 Major overhaul of C/B r2. July 1 15 Major overhaul of C/B n2. 2 8 Fuel gas problems. 3 3 Balance engine and repair oil leaks. 4 1-1/4 High temperature in 1st stA..up compressor cylinder. 5 3 Repaired discharge valves and adjust high temperature shut downs on compressor cylinders. 6 7 Welded on air intake filter, replaced fuel gas injection valve and tightened all injection valves. 7 1 High level in 1st interstage scrubber. 9 3' Electrical short in Sol ar' i n jecti on panel, fuel regulator problem, and high jacket water temperature. 10 )3/4 Repair broken sight glass on 1st stage suction drain. 11 2 False fire alarm, change ignition transformer. 13 2-1/4 Installed air tugger, high temperature in compressor cylinder. 14 1-1/2 High jacket water temperature caused by two cooling water pumps off at same time. 15 1-1/2 Replaced suction valve. 16' 4-1/4 Change plugs, check out fuel regulators, tighten push rods. 17 3-1/2 Welder worked on water. filter. 20 1 Change spark plugs. 22 2 Replaced gas valve, spark plug, and ignition wire. 28 6 Replaced fuel gas valve, repair suction valve. DATE HOURS 1971 Aug. 2 6 5 3-1/2 6 1/2 7 1 9 1 12 1/4 16 3-1/2 18 4-1/4 20 4-1/2 21 3/4 22 1-3/4 23 2-3/4 26 3/4 31 1/2 Sept. 2 1/2 3 11 4 6 7 1-1/2 8 1/2 11 1/2 r DOLLY VARDEN PLATFORM GAS WELL UTILIZATION FOR GAS LIFT REASON Repaired Traban oiler, fuel gas regulator and change plugs. High jacket water temperature, and welding in compressor room. Change several spark plugs. Change spark plugs. Power failure, low 1st stage suction. Change spark. plugs in 2 cylinders.. Change valves in compressor cylinder. Changed valves in compressor cylinder, high level in 2nd stage scrubber. Replace starter, high jacket water temperature, and high vent scrubber pressure. No -indication shut down. Changed spark plugs. Changed manifold gasket. Changed spark plugs. Changed plugs and wiring on 43L. Electrical problem showing low level in W1 separator. Replaced manifold gaskets, crankcase door gaskets, and change seals in fuel gas valves. Construction in C/B #1 room. High jacket water temperature twice. Change spark plugs. Change spark plugs . - 10 - DOLLY VARDEN PLATFORM GAS WELL UTILIZATION FOR GAS LIFT DATE HOURS REASO`1 1971 Sept. 14 1 Change spark plugs and transformer. 15 4 Sand blasting near air intake. GRAYLING PLATFORM GAS WELL UTILIZATION FOR GAS LIFT EXH 1 T 2 DATE HOURS REASON 1970. Oct. 1 5 Clean engine on Guy T. Martin 6 2 Oil filter change, Guy T. I"arti n 8 16 Gas cooler inspection, Guy T. Martin 30 4 !uel control valve failure, Guy T. Martin Nov. 4 5 G-36 watered up 5 6 Fuel control valve failure, Guy T. Martin 8 3.5 Clean engine on Guy T. Martin 9 1 #1 York overhaul, Guy T. Martin, replace seals 10 18 #1 York Overhaul, Guy T. Martin 16 2.5 Pre -Post Lubricator pump failure, Guy T. Martin 17 7 #1 Routine maintenance, Guy T. Martin 18 3 #3 Compressor seal oil system maintenance, Guy T. Martin 19 2.5 Cooling water pump failure 20 1 Scrubber drain lines frozen, Hutchinson Hayes 21 0.5 Scrubber drain lines frozen, Hutchinson Hayes 23 1 Engine over speed, Guy T. Martin 24 3 Cooling water pump failure, Guy T. Martin 29 15 Clean engine, Guy T. Martin 30 24 #3 Compressor failure, Guy T. Martin, replace seals Dec. 1 14 #3 Compres.sor failure, Guy T. Martin, replace seals 2 15 #3 Compressor failure, Guy T. Martin, replace seals 4 6 Fuel control valve failure, Guy T. Martin DATE 1970 Dec. 9 10 11 12 13 17 21 GRAYLING PLATFORM GAS WELL UTILIZATION FOR GAS LIFT HOURS REASON 7 2 2.5 1 4.5 4 24 22 24 30 6 31 1 1971 Jan. 1 3 4 16 26 28 29 Feb. 9 16 1 12 18 1 10 3 4 9 9 #2 accessory drive failure, Guy T. Martin Split flare lines, Guy T. Martin, Hutchinson Hayes Split flare lines, Guy T. Martin, Hutchinson Hayes Battery charger failure, Guy T. Martin Routine maintenance (Lifting G-34), evaluate and D-Oubleshoot G/L valves Engine surge troubleshooting, Guy T. Martin #3 Lifting G-34 and G-36, evaluate and troubleshoot G/L valves Lifting G-34'and G-36, evaluate and troubleshoot G/L valves Safety shutdown inspection, Guy T. Martin (installa- tion of new instrument panel control room) Safety shutdown inspection, Guy T. Martin (air inlet icing) Fire eye failure, Guy T. Martin Compressor overhaul, H. Stage, Guy T. Martin Compressor overhaul, H. Stage, Guy T. Martin Limit switch failure (Yorks), Guy T. Martin Seal bearing failure #4 Guy T. Martin Seal gas modification #3/4 Guy T. Martin 4,000-hour inspection, Guy T. Martin #2 engine change, Guy T. Martin #4 Compressor failure, Guy T. Martin -2- GRAYLING PLATFORM GAS WELL UTILIZATION FOR GAS LIFT DATE HOURS REASON 1971 Feb. 17 20 #4 Compressor failure, Guy T. Martin 18 24 #4 Compressor failure, Guy T. Martin 19 24 #4 Compressor failure/engine failed #1, Guy T. Martin 20 24 #4 Compressor failure/engine failed #1, Guy T. Martin 26 1 7#4 Compressor seal failed (Guy T. Martin), #1 Compres- sor failed (Hutchinson Hayes) 27 0.5 #4 engine failed, Guy T. Martin Apr. 13 20 #2 engine failure, Guy T. Martin .16 9 #2 engine failure/1,000-hours #1, Guy T. Martin May 13 18 Fuel regulator and manifold modification, Hutchinson Hayes 14 24 #2 Compressor failure, Hutchinson Hayes 15 19 #2 Compressor failure, Hutchinson Hayes 25 1 Relay failure, #1 Hutchinson Hayes 26 1 Over speed, Hutchinson Hayes 28 9 Clean engine, all Guy T. i'larti n Jun. 3 0.5 #3 Seal oil malfunction, Guy T. Martin 7 16.5 #1 York failure, Guy T. Martin 8 5 #1 York failure, Guy T. Martin 9 0.5 #1 York failure/DC power malfunction, Guy T. Martin 13 6 Clean engine, all Hutchinson Hayes 17 1 Low oil pressure shutdown, Hutchinson Hayes 20 4 Clean engine, Guy T. Martin - 3- GRAYLING PLATFORM, GAS �IELL UTILIZATION FOR GAS LIFT DATE HOURS REASON 1971 Jun. 21 4 High oil temperature shutdown, Hutchinson Hayes 23 1 Sequence failure #1, Hutchinson Haves Jul. 2 18 #4 Compressor failure, Guy T. Martin 3 8 #4 Compressor failure, Guy T. Martin 4 2.5 Tach. generator failure, Hutchinson Hayes 5 0.5 Seal oil modification routine maintenance #4 Guy T. Martin 9 3 #3 Compressor failure, Guy T. Martin 10 24 #3 Compressor failure, Guy T. Martin 11 24 #3 Compressor failure, Guy T. Martin 12 24 #3 Compressor failure, Guy T. Martin 13 24 #3 Compressor failure, Guy T. Martin 14 24 #3 Compressor failure, Guy T. Martin 15 24 Modify York lub. system, Hutchinson Hayes 16 7 Modify York lub. system, Hutchinson Hayes 28 1 High oil temperature shutdown, Hutchinson Hayes Aug. 2 11.5 Clean engine, Guy T. Martin 6 1 York heat exchanger repair (lub. oil), Guy T. Martin 7 5 #1 engine failure, Hutchinson Hayes 8 2 #1 engine failure, Hutchinson Hayes 16 0.5 Lost inst. air wellhead room #2 24 4 Clean engine, Hutchinson Hayes -4- • w King Salmon Platform GAS WELL UTILIZATION FOR GAS LIFT EXHIBIT 3 DATE HOURS REASON 1970 Oct . 2 19 Monthly service - #1 Gas Lift Compressor (GLC) Oct. 3 12 Monthly service - #2 GLC Nov. 3 2-3/4 High level shutdown - both GLCs Nov. 20 24 Replace valves in 2nd stage - both GLCs down for repair Nov. 21 24 Replace GLC valves - #2 GLC Nov. 22 24 Replace GLC valves - #2 GLC Nov. 23 24 Replace GLC valves - #2 GLC Nov. 24 24 Replace GLC valves - #2 GLC Nov. 28 24 Compressor down - waiting on parts - replacing compressor valve Nov. 29 24 Compressor down - waiting on parts - replacing compressor valve Nov. 30 24 Compressor down - waiting on parts - replacing compressor valve Dec. 1 24 Received parts - replacedbad valve Dec. 4 24 GLC down 1971 Jan. 9 5. Repaired air leak in air chest - #2 GLC down for repair Jan. 13 22 Major overhaul on #2 GLC Jan. 14 24 Major overhaul on #2 GLC Jan. 15 24 Major overhaul on #2 GLC Jan.'16 24 Major overhaul on #2 GLC Jan. 17 24 Major overhaul on #2 GLC Feb. 0 Used only fuel gas for the month of. February Mar. 23 24 Major overhaul GLC Mar. 24 24 Major overhaul GLC Kinq Salmon Platfor f. GAS WELL UTILIZATION FOR GAI LIFT DATE HOURS REASON 1971 Mar. 25 24 Major overhaul GLC Mar. 26 24 Major overhaul GLC Mar. 27 24 Major overhaul GLC Mar. 30 24 Replaced studs on 3rd stage #2 GLC Mar. 3! 24 Replaced studs on 3rd stage #2 GLC Apr. 1 24 Overhaul GLC Apr. 2 14 Overhaul #1 GLC Apr. 3 12 Completed overhaul #1 GLC Apr. 7 12 Installed new piston rings GLC Apr. 27 24 Repacked pocket clearance on 3rd Stage GLC 1 Apr. 28 24 Repacked pocket clearance on 3rd Stage GLC Apr. 29 12 Changing #1 and 7#6 liner and piston GLC May '0 Used only fuel gas for the month of May June 4 20 Repair knock in 3rd stage GLC July 15 12 Replacing valves in compressor• July 16 12 Working on lubricator on GLC engine Aug. 16 19 Monthly service - GLC Aug. 19 18 Replaced rings on #6 cylinder GLC Aug. 20 24 Replaced liner on piston in #1 GLC •Aug. 21 15 Completed replacing piston in #1 GLC ✓1 EXHIBIT 4 EXH I B I•T 5 • 1, to It in III 2n 77 S 10 111 t0 25 •s in iS ;-o 7s S 10 Is 2n 25 a 10 11.1 ?o 29 I'l to ,5 20 23 1% 10 11. 20 25 5 to 17 20 2e s 10 11% If ; S In 11 to .'t 350 300 250 90 �_-•----.i ..._.�-�---j. '�-�-- 171 : .. i I I I �..._ .. I I :� IPLATFORM. _�GAS_.WEI.L.UTILIZATION GRAYLING---- ------ . -__ TFO FOR GAS.LIF'T _ • - -- - -- - - - - - I -- -- - -- - _ -� -�- M,ULATIVE HOURS PER MONTH i- --.. SEPTEMBE R_ t971.- - --- - - - . - -- — i I i I _._._-----•-- -�- -._ �. _ ... ... __ �._.;-;--L _ I� _.�-; .� �• I , ,1, --r--;-- �C �f - �---�-� i I� j ------;---ram .._ _ � __ -i. _:__-�-�-- =- - - - --- - :_ ; � I :I.mJL I i 1 •L. �j I I I I j � i I i �, � _� 1 i� I � � —_ �• ^----i { j I 1 It . IJ. __ I•� t— !-- ----- -- — + � �:_ • - I - --------------- _ 1 I 1 I I i ! -- - - I -._._. _. _-�._.. , ! f I 'III I. -- - - - - I :I I L� -- � I _4 I ' :I ! ! f- - - I !� � I ►,--____ ' � i ': ` ' ' --1--- L ' _�_ _�_ � ALLOWED � l:�._-I H1, .� i -I• I..) i 1 I i—i_;. ---� �---'-_.t__� .� - 1 , 1 : I 1 , l i I l i I I •] I 1 I I t i I ; 1 0 — 6 to to du 26 6 to 15 20 26 6 10 to 20 as 0 10 t0 20 to a 10 10 20 is 6 10 15 20 20 6 10 la 20 20 6 10 to IIo 20 0 10 la 20 26 a 10 16 20 25 6 10 Is 20 25 6 to is 20 as OCT. NOV. DEC. JAN. FEB. MARCH APRIL MAY JUNE JULY AUG. SEPT. 1970 1971 EXHIBIT 6 EXHi3iT 7 OGTOl1[R NOVEMBER OECEMBER JANUARY FEBRUARY _ - S 10 15 20 27 a 10 15 20 25 - a f0 13 ^(+ PRIL MAY to A 15 20 23 3 10 15 20 25 5 10J I5 E20 25 3 1 V` AUGUST SEPT-3 20 0 - - 0•t 15 Y20 25 5 10 t)iS 20 25 5 10 15 ?� 3 10 13 20 23 f 3 10 15 z{o 25 3 10 15C 23 -� s t T. i DOLLY_ VARDEN'- _ -- I k4E �---'PLATFORM' -•--'j-- ,—'—�— I ! I .t� ,. , . ' .I� , �: 1 ! ! � i _ — 1 !- i- ! r__—�—F __ --'t- � VA1.J�-rT ' �Y 1 ELL -U ILIZATION FOR GAG I - I (" - -�- _-UM ULATjVE___HOURS.__PER QUARTER - - 4 00 -- - - j_ ' _� I - _ -I___ I ! f -1 1 , -�- -.. _ _i— _ --I SEPTEMBER 197! I _! ! I ALLOWED ORDER 95 - j -1 i_ -- - - -- i j ` - - • J1---- `-' -j 300 -- -�= - -3 ---' 200 ' ! _. ' ! i ; ! 1 1 .' ! i- I !- _ - - --, M; t i i f i l- r - l__ !._ 1= l— '_ j I I --- — —1� j U 100 1 — — I I — — t ; t --L- -i J i A Q .:1 [ 10 1a 20 2■ a to 13 20 25 a 10 15 20. 25 a •10 is 20 25 OCTOMCR N0V[MB[R 0[CEMa[R JANUARY 1970 I -- - _�- I - '_i __► a to to zo 25 a to t3 zo zs r[BRUARY MARCH a l0 1e zo 2a a 10 1a 20 as APRIL MAY a a• zo as a to fa zo 25 J. N[ I a to fa zo :a a to 15 zo 23 - JULY AUGUST G[PTEMB[q - - 1971 f EXHIBIT $ ,t 70 25 5 10 15 20 23 5 10 Is 20 25 5 10 15 20 25 5 10 15 20 25 5 10 15 20 25 5 10 15 20 25 5 10 15 20 25 5 10 15 20 25 5 to 45 20 25 5 10 it 20 25 5 -_ 15 20 25 :W. r i ii'_ • GRAYLING PLATFLRM a00;- 'ATION FOF GAS LIFTGAS. WELL UTi - i ! ! ! ' 1HOURS-PER- -- - ----- ' CUMULATIVE QUAR T E - R , - - - - ALL - ORDER 95 SEPTEMBER 1971 A I f (• i 1 , I I I _rt .�j- .; { j I i I ! i , ?" I t. I- :1 —' � — I — �----i _ -____— LJ : - --- - - ; --- -- -- - D 0 ooi . I —'—�— t . 1 - i. I I i j _—__— _—.I.--.--•---- 1 i ? I I I • . i _ 1: - 17 J h i; t I ; j. i_ I; ; _ I! 100 T I ------------ Fj 1 I t I I =44_11 I 3 ,O is 20 23 5 10 15 20 25 6 10 15 20 25 0 10 15 20 25 5 10 15 20 25 5 10 15 20 23 'J-It; '"+ 20 25 6 10 15 20 256 10 15 20 25 5 10 15 20 25 5 10 :3 20 23 5 10 13 20 25 OCT. NOV. DEC. JAN. FEB. MARCH APRIL MAY JUNE JULY AUG. SEPT. 1970 1971 r $ 0, 200 0 •• 0 r' `I rn N••. •• 1970 1971 Alaska Oil and Gas Conservation Committee November 29, 1970 Res, Conservat.im Orders 95 and VV McArthur River Field McArthur River Middle Kenai. Qw Pool U0104,011 Company of California 909 West Ninth AVIMUO. eberaw * Alaska 99501 Attention: Robert T. Anderson cent.lema.» Co"ervation Order kbo 95,* dated October 8., 1970, amended Coaservati.on Order Mu, 80 by addisS Rules 7 and 8 thereto. Rule 7 is hereby clarified and. Interproted to me= that the *wdmaperted o1 15 days ,per calendar u arter durUS wbich the escape of Vw is permitted without Comdttee apprav&l a"lies separately and individnaUy to each of the three platform ;in the Arthur River Fleld vary tr17 yonn, Thy .w Marshall.,. Jr. �, �:euti Secretary Alaska 011, and Can Cdaservation Committee Conurrence. Alaska Oil. and Gas Couservati4m, Comittee etu Alaska Oil and Gas C=servatien Comittee RM,SUS z Is Union Oil and Gas F"vision: Western Region Union Oil Company y of California P 909 W. 9th Avenue, Anchorage, Alaska 99501 Telephone: (907) 279-7681 unia"'O'n Robert T. Anderson District Land Manager September 9 , 1 970 State of Alaska Oil and Gas Conservation Committee 3001 Porcupine Drive Anchorage, Alaska 99504 APPLICATION FOR EXCEPTION TO SECTION 2158(b) OIL AND GAS CONSERVATION REGULATIONS TRADING BAY UNIT STATE K-20 AND FOR AMENDMENT OF CONSERVATION Gentlemen: In compliance with your request of August 31, 1970, enclosed is additional information provided by Mr. C. J. Diver. Please enter Mr. Diver's letter into the record of the hearing for Conservation Order #95 . Very truly yours, ; Wade S. McAlister Landman Enclosure ' DIR C. GEOL C. ENG 1 ENG i 2 ENG I 3 ENG - 4 ENG 5 EN G 1 GEOL I 2 GFOL I 3 GEOL �_ REV _.. DRAFT - �f SEC CONFER: FILE: MARATHON MARATHON OIL COMPANY PRODUCTION -UNITED STATES AND CANADA TRADING BAY UNIT ENGINEERING & PLANNING GROUP Alaska Oil and Gas Conservation Committee 3001 Porcupine Drive Anchorage, Alaska 99504 Attention: Mr. 0. K. Gi 1 breth , Jr. Acting Director Gentlemen: P.O. BOX 2380 ANCHORAGE. ALASKA S9501 September 4, 1970 Conservation File No. 95 It is noted that the curves attached to your letter of August 31, 1970, are plots of monthly production. Since these values are a function of several variables, among which are the number of days per month the well is on production, the distribution of available lift gas and mechanical malfunctions on the platform, they are not a very accurate gauge of well bore capacity. Production test data rather than monthly production is generally used as a gauge of well capacity. Reviewing the data presented you on well K-4 in Milay 1970, measured values of producing bottom hole pressure were submitted along with the reservoir pressure. This data, with the measured producing rate on test, indicated to us that a productivity index decrease had occurred in this well. The only reason that we could ascribe to this chance was a shut-in period which occurred between measurements. The actual measured efficiency of the gas lift system had increased, therefore giving a deceptive result if one only analyzed the monthly production rate. To reiterate once more, the productivity index, or the measure of the formation capacity to pro- duce fluid, had shown a decrease between the two surveys. Attached is a plot of the production test information on well G-16 and a copy of the raw test data from which this plot was made. You will note the performance in mid-1969 reflects the decline resulting from pressure depletion. As was reported in the "Third Semi -Annual Report" on this field, the pressure has essentially stabilized as a result of water I DIR C. GEOL C. ENG I ENG I 2 ENG f I 3_ENG II 4F. ENG.... `-- 5 ENG I_ 1 GEOL _L 2 GEOL 3 GEOL 3 REV.... -I_. DRA_Ff J SEC CONrE�:: F I LE--�'� Alaska Oil and Gas -?- Sertember 4, 1970 Conservation Committee i n,jecti on . Therefore, a stabilization of nroduci ro rate Would F.e expected and well G-16 t,;as i ndi cati no in late 1969 this performance. In December the well ��aas shut-in for a number of days and v,hen returned to nroducti on tested at considerably lot,rer rates. This abrupt change in producing ability appears to be directly related to the shut-in.. Since December, you will note the producing rate has stabilized which is to be expected. Unfor- tunately, it has stabilized at a rate several hundred barrels per day lower than would have been expected. In summary, endi neeri ng data exists on only one v!e.l l to date 11.►here we feel a shut-in has caused damage do to a,.,ater production. Nowever, we are injec- ting %,rater in this reservoir for pressure maintenance and feel that, in the future, similar results can be expected on wells which are produci nc! tgater such as G-16. Our application is asking for the operational flexibility to forestall such an occurrance. Past experience has shown that the cur- rent rule allowing five days use of gas well gas for artificial lift purposes is insufficient because compressor malfunctions usually persist longer than five days. We feel we would be lax in our responsibility not to drav:i the potential dander of these shut-in periods to the Committee's attention before the damage happens rather than substantiate a loss in reserves after the occurrance. Very truly yours, TRADING PAY UNIT ENGINEERING & PLANNING GROUP C. J. Diver, Chairman CJD:ea Enclosures )_7= y YEARS' i3'I MONTHS` di6- 3i2t)0 F logo-__C -6X 100 BTWSIONS KEUF'FET- & €5S€R CO, OIL RATE 1,000 BOPU WATER CUT % o — roCD w Jan. i ' 1 I ! I i � j ! Feb. 'vay i0 Jul': I �- '------ --I Aus (( ♦: .1 4VJ O,t. . I - I .0 I Dec 0 Jan.--- Z I I Feb.- G7 ` Fri - - --- t—_ ' - -- -- - - i a ca Apr.- D C 'p I June n ` I- Z July _ --I-- - -'---J--- -- -- -- - �- - - - - D e r: I � I I Feb. , II Apr.------ �c f;9 a y- ! 'June Nov. j-- I -�-- - -- --- -- -- - j oec, i - - - -- - - Aj OD O O' O O O O O O 0 CD 0 0 O O O O 0 O GLR -CFPB AeL 1:3L%[l a'�;t7 i sr.:1 1,I1��%vS [i LJ O CUT n�;, i3 :J t�i��:l t i:t�J i i:.i1 1� xl\J S)J,.7 i�l" ;J C1Q1� �r. r �+r �c ,- I t7 i / / /• LR GIZAV ► i3(V-SG .,..� OUT -��._T�� '`� _ ''v ` c>- i - -�--off- 4 y� . �_I �� 1, i "if j, ".'►_'_'_'' i i ,{ r--"-•------.� e /1, ! �� • f lit. i _. - ��`� �1 �,_,i �_.---------i,.�..J F f\. >-` 17)^ i St��`� f ; � _ i_�i �. I f `� j `-1 1 � i !•�) `'/ i�({J �1,�L.�.�t-.� [�)�(�\. ( � ;J E 1 �; �• i1 �r (,,� i�� �- i j� •ice` �• 1yT .1 j / � � ✓ � '� •. f / , �} :.) L '� `J. a'i ) I i /_•_�� • I __ s' S7 I1 , }d f i V � ! � � �'1i._.i f r��t`L JQ- 1 • � i 7 � ._ ~+ '� ��1 � j L 1 ��. _+- � "� �_ �� � 1 � � 50 �� "^� �` � f �� va �_ - r'� � � � �..o�x�-�...� • f �J :✓ ' � i. i c �! �h.��ic � 9 , i � �,.�5i,-�� I f 1 I .�_(I � i�l � .�i�- �---v'il cl l ' �� - -Y�� -� �. � � >=•- � f E ���-�� I J � '� � 1 � ' ' I t ! l �f t _�_ � i =.� � Cyr-�l� �_ ram! `� ; �'� � J - � �� i � `-•r-ttYrr j 1 1 I � �'� ��i� �_� `� �_, �1 /, I) � � , u.�� " A L # � � � \i � r •� 1 r 1 j � 1 r � • J � / � ',��/ ✓i C � �� i. WELL TESTS rF F t � u'z��i'JS,il�c ;T!!np TESTED GROSS !3%I; n CUT NET B/D PROD (-,AS\MCF'lD I`J GAS �sCr/D GOR GLR GRAY Ti�G/C.SG ClIQKRwQi.iT 471 IM qU gL -LIza�1.���� t Q�L? t �. �. ......� ..e-.b.--'Ire-.s,.•"".�.�....� .'�-��-! •tee-n• E a.. - }.. i , LZ '� yf 1 71 0 ' � 1 • `� F� j 1 i , j� Ie-`,- F F t� + 4 1j�'� i==•,. �',....-.: y i % - I f��`Y �i..v.... j j`� - - - -�• I cf f I , 14. �Gil 1) or's yo �, �r i It"'ELL TESTS K ELL NO. �? �__i_CIA-PUS./M.ETNOD T-FX,7al GROSS B/11' 010- CUT NET B/D PROD CAS -IMCF/D INNJ GAS MCF/D GOR CUR GRPV TBC;/(,,SC, CIIOKI:-o!,I'F U4L ) -,VS- lqc, wn 6 vl-21fi-f F7 7 41- �eu te, C, r_i o WrT T 'rrCrC -0 I 1,1E L L N, V-" 010- CUT - NET B/D PROD (-,AS MCF/D 1909 STA7,JSAMETHOD 1"E"ISTED - GROSS BID INJ GAS MCF/D GOR GLIR GRAV Til)l(',/CS(', CHOKIE-OW Lj C Lj C/ LIE k- to ifCD __ _-- �' , _ -i 1 � I I+ r r) ` � y t L 0 i L1�C% ZJ f CIL C) L TA r T- 7 T Ir T_ 0 Ir 47 :FELL Nn 1 L ✓ STAT"'S"TEMOD Tr_ R G'OSS P,/TD 0' CUr NET B/11) '-AS C p T GAS MCF/D GOR C L! GRAV TII.C,/CS(7, ci,!n;(E-o,JT 7> 'jL 7�7 Ll I (J i ell U, LY—L 1v !Li Zj J if6l J_ Lc 6 )4111 C>j Po ID L kj _Y-L16; la, NA Yd -7 c Atlantic RichfieldCompany North American Producing Division Alaska Dis(" Post Office oox 360 Anchorage, Alaska 99501 Telephone 907 277 5637 September 3, 1970 4J -A- C, �. State of Alaska Department of Natural Resources Division of Oil and Gas 3001 Porcupine Drive Anchorage, Alaska 99504 Attention: Mr. Homer Burrell Gentlemen: DIR 11~ C. GEOL C. ENG I- 1 ENG I. 2 ENG 3 Ef�'G I_ 4 ENG i L 5 ENG �- -� 1 CECL) 2 GEOL ` 3 GECL I, i REV bRAFT sEc- � CONFER: FILE:- _ In view of the hearing on Thursday, August 27, I would like to inform you that we got our second compressor in operation August 29. The piston rod which we had manufactured in Kenai is apparently doing the job and our mechanics were able to get it installed before Monday, the date I had given to you at the hearing. I want to express my sincere appreciation of the way the Division of Oil and Gas has worked with us on this particular problem. As I said at the hearing, we do have difficulty at times with various suppliers and your Department's cooperation is greatly appreciated. Very truly yours, 4�/Ao K. W. S1epr District Production Supervisor KWS:pa ALASKA OIL MD GAS CONSERVATION COW. ITTEE Septe"er 3,, 1970 U.- Cmservation Order 95 unioa 011 Co"y of Call forals 90.9 West #Intb A"mme Aachorage, Alaska 99501 Atteation: Wade ftAlester - goat I *mn The red of Ow boarlag of Ca"orvation Order 95 will reaslow ,co" throuo Sit 100 19,70 to view of the necessity to submit additimal s-upportiag %documm-ts. Ury truly yours,, Thams A. Marshall, Jr. ExecmrlSecmtM, , T Int, im west 31, 1970 r' J1Re: Cmwervalon File No. 95 'U"im Oil Cry o 'aliforala 2$05 90"11 Stv"'t "wage o lm9,9503 comt1 and smaysing the, wt"tp'ovinox "'mites on Tradlog Say U141t ft1 No. -4, thwe to ^ question . to ttee * Wit + Atch wAght have ocerre 4 : to U l" shut-in. Sftm the pwo4vetlea data presonted to not upo date t ve Ow 111wrty to plot cev from the wouthly Veil, e - t10 rests and these data Indleate to ua that productioa rates are back 1 dim ,,* W are amble to soe 1vdtrA- timo that lrmparsbU, damSe Us, oocumd to voll productivity;or to 14"ft ems. o these u� is Icing per:" VITOMICY t 'ou vftlt ass Oat you eowmt or fa=1mb any mWitional 181a "MUee rm any haw vhltb Indicates Parmaent 4MRASO boo. acewrod, 00% OW *WiXOL Aieh WOUU hOlp tko C ute, le r4mdexUW a degulon 06 this Witter Sineetwxy �e . 14 9 8 7, : i . . . . . . . . . . . 7 7: 1t: ' . 77 I , 1 �_ r . _ I 1 � ' I I �. ;. - 1 , T I 77 . �- -r' -- •- - I--i� - I I I_I I I- � I-;. [ �� III. j ' i I ' ' III 1 I � I I � I I_I � I I I •I l� i I ram_ - _. �. � �I.. - I I � I . -i- -i I I III I I ( I � II ' II ilj I III 11 I �II'I III III I I i II (I{ !4 II it i I I II I _l __I. ,IIII I_ .! ri i. _I_ I ..I_ I. Ti_i i-I. _! I ! 'i lil jII II IIII ! 1 li .l r..�1 VIA ICI II I �1 1i ;I.I_!- I II it II I I I i. II I.., r,.f~'ti•\ ._....i .I.I ._ i..i 1. ._I I._ _,_...,.. .. - {_- 9 -� -- l I"_.... _ ,..L� 111 ; I IIII III III I�.. f j __I _I I ', I� I I; I 1 I. III I I I ., ..I _;t 1' :i L_.I . ;_. ,_- 1� I 1 1!� �I - li;ll i_ I I _ Ilil ill IIII Illi I i!l i�' Ilii iIII !i i PAN I N - A,i -'� -. I I I � !I I I �'I I 1 - I I. _ I. ( i.. I I I I i l I I I'I, i �!L.' I I I- I I� I i I i i I I ilk f it f l l _ , I ± I.: i I !:I 1 I- I I' ;.'I I 'I -I .I -I' j I I-� i� ,. I ; 1 � I L, ,..I .I .; .i .,_i.(l Aid 1-I-1-, ....-._Li L_,_ , , I I I I i_� .! I I ..I i I .. I.�. I I_,�-OEM RRIM I...'..I..III..I .I..... I�.l I_.._- _ I�II I1I, I �Illl11 �.II II I III III �II�I IIII I I � I II I�I I II K Z4 �y; P[ISLTC 1JE-ARING TESTIMONY G1-' STATE O aLAU��t I a or t, Q + ov DEt ARTINIENT OF ti'!l`I (.,P,1%1, RESOURCL5: r.T,1.7T Q,Tn„ T nr,r, l,\ �✓ � ./ 1 L . 1. � L' \? � '\'.�' LASKA M, ANC! GAS COI,dSI.R.�l�-'1TIC�N COi�1�tI CM,TTEF:: CONSI]RVAT"ION F TI,E' NO. 95 AUGUST � 7 , 1970 INTRODUCTION On August 12, 1970, Union Oil Company of California, Operator of. the Trading Bay Unit, requested the State of Alaska Oil and ;Ias Conservation Committee amend the A(cArthur River Field Rules, Conservation Order Number 80, to include the following rule: rule: "Gas from a gas well may be permitted -to escape into the air without Committee approval when such gas is used to artificially lift oil from a pool in cases of operational necessity, provided no such escape be for more than 30 days in each such case." I request the following sentence be added to the originali.y proposed .-llpon request, C!le Culm i u.eC a longer period of time." Operational experience has shown the rigid provision of Section 2158(b)(3) of the Conservation Regulations to be inadequate for the proper conservation of natural resources in the McArthur River Field by not allowing use of gas well gas in lieu of compressed casinghead gas for artificial lifting for a sufficient time for repairs and for scheduled preventive maintenance of compression equipment. Evidence exists which shows permanent - damage may have been suffered by McArthur River Field wells when shut in for varying; periods of time. Such well damage, when caused by being shut in during repairs and ;maintenance of compression equipment, can be minimized if gas well gas is available for lifting on a flexible basis. The proposed rule offers the necessary flexibility while at the same tir:;e limiting the period during .diicii Oas well gas ;?,ay be uti lizod for a single operat icn���. necessity before, rurther Committee approval ,,�ould be rcqu:ired. 2 Mr. C. J. Diver and Mr. Kenneth 11. Slepr will present testimony in support of the proposed rule. I will read the qualifications of both these men into the record since neither have previously been established as expert witnesses by the Conservation Committee. Mr. Diver graduated from Colorado School of Mines in 1952 with a degree in Petroleum Engineering. Following two years with the U. S. Army Corps of Engineers, he went to work for Marathon. Oi 1 Company in Wyoming as a Production Engineer in 1954. From Wyoming, he went to Tulsa, Oklahoma as a reservoir engineer in 1957 until 1963 when he moved to Denver, Colorado where he worked as a reservoir engineer in Marathon's research laboratory. In 1965 lie was transferred to Robinson, Illinois as the District Reservoir Engineer. From 1965 through 1969 Mr. Diver was Marathons Division Reservoir Engineer in Los Angeles, California. In January 1970 he moved to Anchorage, Alaska where he is the Chairman of the Trading Pay Unit Engineering and Planning Group. Mr. Diver previously served as the Chairman of the District Three of the Conservation Committee of the California Oil. Producers. H presently is serving on the API Reserve Subcommittee for Alaska.. Mr. Diver is a member of. the Society of Petroleum Engineers of AIMF and is a Registered Professional Engineer in Oklahoma. Mr. Slepr graduated from. Georgia Institute of Technology in 1953 with a Bacliel.or of Mechanical Engineering Degree. He has worked over seventeen years. for Atlantic Richfield Company at various levels of responsibility in the Engineering Section. Mr. Slepr came to Alaska in December 1968 as Special Projects Engineer - Cook Inlet. He has been District Production Supervisor. since February 1969. He is a Registered Professional Engineer in Texas and a member of. the Society of Petroleum Engineers of RIME. In 196$ and 1969.i1e served as chairman of. the Production. Operations Committee, RIME. I request lair. Diver and' INir. Slepr be established as expert witnesses and be sworn for this hearing. (Oath administered) E�;GIf.'.Ef_PIf G TESTIl"O Y TO SUPPORT THE APPLICATION FOR APPROVAL OF AN APPLICATION FOR EXCEPTIO11 TO SECTION 2158(b) OIL AND GAS CONSERVATION REGULATIONS TRADING DAY UNIT STATE K-20 AND FOR AMENDMENT OF CONISERVATION ORDER NO. 80 PRESENTED BY C. J., DIVER, CHAIMAN - ENGINEERING & PLANNING GROUP TRADING BAY UNIT AT A PUBLIC HEARING - AUGUST 27, 1970 - ANCHO..F'I\GE., ALASKA r IHT[ZODU' CTI011 IN testimony Sri 1 i slhov; that the use of c?as t,"e11 nas for nas lift purposes is an operational necessity. The fol 1 of !i nq '111 he discussed: r o . 1 - Uti l i zati on of c:as as a lift m`c'.ani sm on the pl atfori-ns , rNlo. 2 - The historical summary of operation of compressors on the pl atforins , iIo. 3 -- The near term effects of. a lack of avai 1 able lift oas and 111o. n - The lone► ter,i effects of a lack of lift -aas . In the 1,11cArthur River Field, the pressure in the Hemlock reservoir has de- .cl i ned to the point where most wells have ceased to flow; therefore, artificial lift of some type must be used to sustain oil production. 1,,,►e are employing gas lift for this mechanism. Gas lift operations are conducted by compressing . low pressure gas and circulating this now high pressure aas into the annulus of a well and returni na it to the surface through the tubing i�ii th the oil and water,- Under normal operating conditions, our source of gas for gas lift. purposes is that evolved from the crude oil in the producing stream. Gas compression equipment has been installed on all platforms in the ticArthur River Field. When this compression equipment is inoperable, the oil production ceases. HISTORICAL DOWNTIIE Exhibits A, a and C are historical summaries of the operation of compressors on each of the three platforms in the Trading .Day Unit. This information indicates that the frequency and duration of compressor dovintime is not predictable. The compression equipment is massive, intricate and very specialized, Exhibit A for the King Salmon platform shows three major periods during which lift gas from a compressor was; not available. Mr. S1 epr will testify in detail concerni nn the doti.rnti r,e start-i no in July 1970. In riarch , flay and July a compressor v.as dorm for consi dera�)l e periods of time for repairs. on the Grayl i nn platform, in Jani, ary, February and (--'arch of 1970, a compressor was ft,ln for several days. The 13 month period tabulated on Exhibit C for tho Dolly Varden platform shol.!!s .several months, i ndl uci ng December of 1969 and lMarch of 1970, when a com- pressor t%yas inoperable. Every effort is being made by the Operators to improve on this performance. For example, spare parts inventories for all compressors on the platforms are maintained by the Operators. Those inventories are a part of the original compressor package and include those parts which are expected (through operat- ing experience) to need replacement. As more experience is gained in the operation of these machines, we expect future performance will be better. However, we can never hope to achieve an'operating efficiency which is equal to that of a land operation. This is do in part to the amount of vibration which occurs in a platform installation as compared to that vrhen the same machine is operated on a golid foundation. Also, the location on platforms demands far more safety devices than would be necessary elsewhere. These can automatically stop the compressor yet no hazard would exist if production were continued., Space limitations on the platforms create problems in delaying repairs. In addition to the non-scheduled downtime as shown on these exhibits, other periods of downtime are expected. These will result from required annual -2- Y preventive maintenance on the various pieces of in0chi nery. Ile estimate this t,.i l l amount to al -Tut 20 days a year, i t r platform. NEAR TEIRI EFFtCTS I?Jhen one r�achi ne or half the coi:'.pression is lost on a platform, we lose about 35 percent of the production rate from the Hemlock. At the current level of production- for the three pl atfori>>s , this loss in production amounts to about 9,000 barrels per day on the King Salmon, 13,000 Barrels per day on the Graylinq and 15,000 barrels per day on the Dolly Varden. eased on the royalty and the severance tax currently -payable, the State of Alaska's loss of daily income 'attributable to this loss in production will be $4,400, $6,300 and $7,300, respectively. These losses assume a price of ;2.78 per barrel which is the posted price of the Unit Operator. When both compressors are inoperative, platform production is essentially zero. It remains so until lift facilities are once more available. At that time, production resumes but at a reduced rate. Experience. has shown that it takes about 72 hours to approach normal production rates. Exhibit D illustrates thi.s typical rate performance after a platform shutdown. from this curve, it can be seen that when a platform is completely shutdown and then restarted, an equivalent day and a half of production is lost after startup. When there is a platform shutdown on the King Salmon, -the revenue loss to the State of Alaska will be $12 ,000 per day of shutdown plus an additional '$10,300 while the production is returning to the pre --shutdown rate. On the Grayl i np, this loss will be $17 ,500 a day plus an additional . $26,300, for the Dolly Darden $20,500 a day plus $30,700. -3- I There are other potential losses when a well is shuti n . Typical pas lift i nstal 1 atl on s cnnsi st of ten to fourteen (,,(,s 1 i 'It vaI ve s . It, 1'1F_'.r1 a s in normal operation, only one of these valves is operati r;q. After a ,;ell is shuti n , liquid r i ses in the tUhi nn. In or-cier to return a to normal o��c'rati nc status most cf the v, �i ves i n the syster', must onerate . Tl�i s creates thy, pos si bi 1 i tv of a r;al functi or, . ! +hen this occurs, it is so,Yreti rocs necessary to kill t!F,,_,- V;el l and pall the tuhli nro. This is a probable har}peni nq, the frequency of tilhi ch cannot h,e predicted. The result is a further delay in production and more importantly, exposes the �.,,el l to fluids which could result in long term losses in productivity. LONG TERM EFFECTS There is concern about the effect of a shut in on the long, term productivity of a well. Laboratory data on Vleml ock cores from the Mc' Arthur River Field indicate that water introduced into the rock causes'a reduction in flow capacity. Measurements of this have been made utilizing both pseudo -Hemlock formation water and filtered Cook Inlet water. The results of these studies are.documented in a report titled "Water Sensitivity Evaluation Hemlock Reservoir", dated April 1969 by Mr. J. T. Morgan, Senior Geologist of 1,111arathon Research. This report is marked Exhibit E. When a well which is producing some water -is shut i n , the liquid rises in the well bore and along with fluid segregation, will expose oft bearing sandstone to water. Thi s 'porti on of the reservoir is then free to imbibe water and cause a reduction in flow capacity through increased water saturation and through particle dislocation. This 'problem is more severe where there are different pressure systems in the various layers as is the case in this field. In addition, it is an accepted fact of reservoir behavior that with increased -4- �rt !{rater saturation, the relative permeability to oil decreases . In the ''cArthur River Field, many t,-ells currentl\� produce some water. Also, we are injecting v!ater for pressure mai nten-nce and', in ti r;e , all � lel l s in the field v?i l l produce ti;ater in increasing amounts. The Committee ti,fas previously given data on Piay 25, i°I _,, concerning the per- formance of !-!ell K-4. Prel i rni nary data on at least one other well in the McArthur River Field, that is G-16 , indicates a' productivity loss i�Ih-i ch tine believe to have been caused by a shut in. Since subsurface pressure data was not gathered before and after the shutin, the evidence is not entirely conclusive on this ivel 1 ; ho�,rever, production performance did indicate a loss of productivity, We plan to observe individual well performance and to monitor losses in productivity resulting from unavoidable shutins. The loss in well productivity that vie have been discussing has been measured on at least one other platform producing from the Hemlock reservoir in the Cook Inlet. This is the Spark platform operated by Atlantic Richfield where this has been a major operating problem. Mr. Chairman, this concludes our direct testimony. I request Exhibits A through E referred to in the testimony be entered into the record of this hearing. (Question & Answer) Conclusion From the testimony presented, it is obvious an artificial lifting mechanism is mandatory for the Hemlock Pool of the McArthur River Field. It can be seen from an historical viewpoint that considerable compressor down time has been suffered for periods ranging upward from one hour. An immediate result of losing gas lift capability is a loss of the Sta.te's royalty and tax income. Permanent damage of a well is highly possible following its being shut in. To avoid adverse effects from shutting in wells when comnressed gas is unavailable -for art1 fi -i --l1 l i ifting ??s well gas must be made available for this purpose as allowed by the proposed rule. :, B I A KING PLAT M r; COI-TF.ESSOP D0!-NN T T, "� Date er:s. Jan. 9 20 firs . Install new overSr!V. nod swi l-ch . 18 10 " Adjust ermine. 19 12 " At 25 la f° 2e 14 r It a It Feb. iQ a hrs. Change fuel regulator. 15 3itChance plugs. 25 10 Adjust empi ne (both units). March 3 lr, Adjust engine. 1$ l t i'ai ntenance . 2G 3: :.�ays Unit N�o. 2 dorm for overhaul. 26 2 hrs. Change plugs. AP . 15 G hrs. High liquid level in scrubbers. flay 13 12 days Unit Nlo. 1 dovrn for overh�.&ul. June 1 12 hrs. Repair broken gas line. 4 12 It 11 of it 24 11") Repair e; haust coup -line. July 14 12 1hr5 , Replace f,Io . 1 compressor valves. 24 34 das Comnresso,, P' o. 1 d e}t-:r. f ol- rer ai rs . 15- 3 Compresscr f!o. 2 do►in for ret-4air,s. Aua. 2 hy-s . Chancre n1 ups . 11 2 Repair Beat exch(--mner. Date Jain. 1 6 7 8 .9 10 10 1.1. 1.4 20 Feb. 3 March, 1.3 14 1.6 18 24 April 22 27 May 3 3 7 20 23 25 Dou-ntimie 6 days LZ I)rs 16 hrs. 4 -r s . �.6 hr r s . 8 h s. ? day 4 hrs, 4 days 4 hrs. 2-1/2 dati;-s Lk:ITB-TT B GRAYLING PLATF� RIN-1 COMPRESSOR DOW",'" rI�,IL R.emarI,s Unit B down due to condensate i.n lube oi-I , Uni t A dozen due to conc:eiisate i._i itii;,e of i Unit A dov.,n due to condensate in 1u1)f, , of 1 , 'unit A down due to condensate in lul)e oi.1. Unit A dovin due Lo clonC1eiiSa.te in labc, oil. , 'Unit B down due to conclensa.te in lu.be oil. Unit A doi n due to scrubber drains and. air inlet filters freezing. Unit B down due to scrubber drains and air inlet filters f'reezin^. Unit A doWn du.o - o cc -.dens ate in lub eY of 1. . Unit B down due to condensate in i..ue, ol.l , Unit A down -�o replace seals i.l low :> �..zZ>e . ''( .1i 7. .., N V'/!. A. 4 ,(\ U.V YY♦• �.V A ♦'.�Aa+\. •, „7Vf4 ./. �) J. .1a 3!ilj..,,lA 6-1./4 days Unit B dowel to replace seals ..ri hikyl, S%o.go 3-1.12 days Unit A down to replace seals in hista gse . 5-1/2 days Unit B down to lepla.ce seals in high stage. 4 hrs. Unit A down to replace seals in hiph stage. 4 hrs. Unit A down to replace seals in high t;tago. 1.6 hrs, Unit A down to replace seals :i.n ILi.gh stage. 8 Ilrs . Minor adjustments. 4 hrs. Minor repairs on low stage. 16 hrs. Minor repairs on control air. 4 :hrs . Unit A down due to minor hi gh stage repairs . 4 hrs . Unit B down due to minor hligh stage, r e"I�G 1T-5 . 3-1/2 days Unit B dowl—L to replace bearings and seals .in high stage. 12 his. Unit B down to .replace bearings and seal s in high stage. 10 Iirs , Minor repairs , 4. hrs . ! (I jesting control system. 12 Uzrs . 114in.or repairs. Date 3u:1c 12 29 29 jul s 7 ov nt i m c 4 hrs , 4 nrs . 4 hrs . F.%I I� B I `I B (Cojitinued) Rema : 1::7 Unit A down due to minor hi crh stage repairs. Unit A doi,m due to minor iig.'r. stag:; r. fairs Unit B down duv to minor higli stage repairs, 8 hrs . Both units do,..n for electrical repairs c.,--n low stage, r Beth units down for ea.ectz• ica.I rei3iI-s On low stage. 4 hrs. Both units down for electrical_ repairs on high stage Da to July - 1 9�5t 3 4 7 t5 15 19 Oct 12 25 NIOV . 7 8 10 13 18 20 27 29 Dec. 3 5 9 10 12 26 Sian. - 1970 2 3 28 Fe 2 Down t i rT:e 18 hrs. 1-1/2 firs. 1 d a 4, J 9-1/2 hrs. E) HiBiT C 0 LY f :., ,T CONTRESSOR DUIT'iTI, IE Inspecting corrr)ressor. Replaced nush rod. Chance suction valve. Repair broken piston. Rema rl s 5 firs. - Kenai r rnan i fc,l d . 10_1/2 tars. install fuel injection valve. 4-1/2 Change discharge valve. 9--3/4 firs. Installing di sCharge valve. AA 10 hrs. itechani cal repair. 14 " Change nluc,s and head gasl'et. 1-1/2 hrs. Chancre plugs. 2 hrs. Charing of 1 f i 1 ters . Chance plugs. 2-1/2 hrs. Change di scharre valve. 2 4rrs. Chancre spark plugs and adjust air controller. 2-1/2 hrs. Chance r1 ucs . 7--1/2 hrs. Chance valves. 2 hrs. Chance plugs. 18 Change ni ston and cylinder. 1 hr. Chance t,l u n s . 7 hrs. Chance head. 6-1/2 hrs, Chance hoad 4 days Inspection and mWai nt:enance . 6--1/4 firs. P.enai r ,)acker arm. 1 hr. Chan,-ie snarl: 01 uc s . 3--1 /2 days Pen",'Ice craci:ed h--ads . 12 sirs. P%djus1-- clearance. 2--1/4 firs. C'l.anne valve. 3 hrs . lonai r valves. 3 C:oripressor piston hack rod. 8-1/2 hrs. P..djUst engine. It Ca to Feb. 1070 8 21 Ma r. 15 23 24 22, 29 30 i r J 26 3 r, rt r_ June 17 25 July 1 4 7 8 16 2.1 24 ���•:nti r�:e 5 ti rs . 2 days * / � 1 B 1 . %C (Conti nueu j Repairing ccMrressor. tepai rs. Pena rk s 1 fir. Chance valve . 1 Repair ignition. 2 days Chancled piston. 22 hrs. Changing cylinder mead oaskets . 24 hrs. Replace piston arida rod. 4-1/2 hrs. it It" 2-3/4 hrs. Chance suction valve. 1-3/4 ;ors. Chance three discharge valves. c) hrs. Completi nd rAriai rs . 1-3/4 firs. Engine oversreed . I hr. Install ncw transformer. 1 hr. Repair scavenger air. 2 days Replace head. 1 hr. Repair. 7 hrs. Peoai r. 14 hrs. Adjustment - engine No. 2. 10 hrs. Repair enni ne No. 2. 1 ter. Flaintenance chec,:. 5--1/2 hrs . Replace suction valves. 8-1/2 " ,•jai ritenance . EXFilBIT D �-1 DAY -� TIME S -7 IRV I C E _? "Ic 0 7\7,a T ATER SENSITIVITY HEMLOCK RESER%70'.,rR UAT i 0 NT J. T. MorCD-,C--.n 'S? 04 04 008 08 was authorized at the r%aC.uas_L 0. :.ncnora e District O-oc-rations Vanac7er. A water sensitivity evalu-a-cLon of core Cal material from the D-2 Trading Bay Unit well was requested. An interiT,,; repo-rt dated July, 1.968, re -ported the results of: 1 licuid permeability data performed by Core Laboratories, inc., of Dal"A_,!­:S, Texas, and (2) permeabilities to Cook Inlet water which was performed at DRC. A copy of the intarii-ii report is attached (in Docket). The interim report concluded that the Hemlock sand could he flooded at a uniform rate with filtered Cook Inlet water. That conclusion was IDased on tests which were performed in the presence of water alone. Emulsion problems, etc., were not evaluated. We helped coordinate some of the special analyses run by Core La' -,-;- oratories, Inc., Dallas, Texas. That work has not been completed. To aid in the interpretation of the special analyses Ap L pend-Ix I, J_L n. pocket, was prepared. Appendix I contains photographs of: (1) plug ends at one magnification, and (2) thin sections of the plug ends at 30 magnifica-`ions. Examples of pores, quartz, feldspar, clay and mica are labeled. The -Door sorting of grains and consequently of pores, and grains with large surface areas, such as clay grains, suggest the connate water saturations of 30-40% reported by Core Laboratories, Inc. are reasonable. Regardin7 the photo- micrographs, in general, those with the larger and more abundant- pores will have the lower connate water saturations and more favorable relative ability curves. All of t--he plugs contain approximately the same complex mineralogy. They are composed of subangular grains of quartz, chert, mica, feldspar, and rock 447ragments. The rock fragments have the following variety in origin: igneous, metamorphic, volcanic, and sedimentary. Clays are kaollnite, chlorite, sericite, illi-Le, montmorillonite, and mixed !ayer"7­1'. clays. X-ray diffraction indicates the presence of swelling clays in al'i the Hemlock samples. The amount of swelling clay varies considerably. r.mounts 'Large enough to be detected by swelling tests (see Table I) ocC,,_,-- e---ratically distributed t-hrough the reservoir interval. Amount of smaller than 0.016 mm are shown on Table II. Recon.'Iniendations remain the same as those given in the attached intar-ILm ner It is further recommended that, if special analyses of Core 1,a:b- Inc. of the " congloir,,e rates" show any differences fro7t*-Ie 1� S anlalvzed, the "con.2-lo-m.era Les" he sent here for a lithologic study to define Me reasonS far those variations. C.D. 9s j� /� �il:�lji nO�T\T O T .� Tl.1C:rY�A:u I� D-2 r:"i"\I�l ING BAY U.,," STAVE Deg 1157271-11,728' 115798`-115799' 11,894'-11,895' 11,901'-11,900' 115902'-11,903' ll,9061-112907' 119912'-115913' 11, 918' -119 919' 11,921'-11,922' 115923'-11,924' 11,931'-115932' 112933'-11,934' 11.,934'-11,935' 112972' 12,122' 12,205' 122208' 125398'-12,399' Swelli n? Value- 98.1 100.0 112.0 102.0 106.2 105.0 100.0 105.0 102.0 100.0 100.0 100.0 102.0 122.0 100.0 100.0 104.0 96.0 SwelLing value over 105 indicates the presence of swelling clay. TABLE II CLAY SEPARATIONS MARATHON OIL COMPANY #D-2 TRADING BAY UNIT STATE Depth 11,798.7-99.2' 11,894.0-95.0' 115906.0-07.01 119918.0-19.0' 111,921.0-22.01 11.1972. 01 12,122.O' 12,205.0' 125208.5-09.5° finery than 0.0-6 6.7 4.8 9.7 3.9 2.9 6.7 2.3 3.5 4.3 TECHNICAL SERVICE PROJECT 04 04 08 INTERIM REPORT July, 1968 J. T. Morgan Reported here are (1) liquid permeability data performed by Core Laboratories, Inc., of Dallas, Texas, and (2) permeabilities to Cook Inlet water, which was performed at DRC. CONCLUSIONS These conclusions are based on a very limited amount of evidence. More core material would need to be studied to characterize the reservoir. It is concluded: 1. The Hemlock is slightly to moderately sensitive to brine. This sensitivity increases with decreasing salinity, with the rocks being strongly sensitive to fresh water. 2. Any fresh water, including fresh water based drilling muds, will damage the Hemlock reservoir, as well as some sands above the Hemlock. 3. Cook Inlet water is apparently compatible with Hemlock brine. 4. Permeability to Cook Inlet water ranges from about 40 to 70 percent of Klinkenberg or air permeability. 5. The Hemlock can be flooded with filtered or filtered and treated Cook Inlet water at a uniform rate. RECOMMENDATIONS It is recommended that: 1. No fresh water be introduced into the Hemlock reservoir. 2. Consideration be given to avoiding the use of fresh water drilling fluids in future wells in the area. 3. Additional liquid permeabilities be performed to confirm con- clusions and the above recommendations that are related to water sensitivity. 4. Cook Inlet injection water be both treated and filtered. More complete recommendations were made under TSP 04 04 07. TSP 04 04 08 July, 1968 CORE LABORATORIES, INC. LIQUID PERMEABILITIES Results of liquid permeability measurements performed by Core Laboratories, Inc., Dallas, Texas, are listed on Table I. Because of core breakage and shortage of core samples along with numerous other types of tests to be performed, samples from only two depths were analyzed. Those data show the Hemlock to be moderately sensitive to brines and Cook Inlet water and strongly sensitive to fresh water. The sensitivity to fresh water can be caused by either or both particle movement and swelling clays. Incomplete data indicates montmorillonite occurs scattered through the reservoir. This strong sensitivity to fresh water indicates that any fresh water, including fresh water based drilling muds will damage the reservoir. Study (TSP 04 04 01 letter report by Hewitt and Morgan, April, 1967) of the sands above the Hemlock in the Trading Bay #A-2 well showed those sands to be strongly sensitive to fresh water. So all data indicate that a fresh water based drilling mud probably results in bore hole damage. Permeabilities to Cook Inlet water are similar in both plugs initially saturated with formation brine, and in plugs saturated with Cook Inlet water. This data suggests that the formation water and Cook Inlet water are compatible. DRC PERMEABILITIES TO COOK INLET WATER To support Technical Service Project 04 04 07 (Water Treatment, Hemlock Reservoir, McArthur River Field, Cook Inlet), a series of perme- abilities to Cook Inlet surface water was performed. Results of these measurements are shown on Figures 1-13, which are plots of permeability variation as a function of cumulative water injected. BEREA CORES Because of a small amount of available Hemlock core, Berea core (Figures 1-6) was used to help evaluate selected treatments of Cook Inlet surface water. The Berea cores had been fired, which broke down clay structures. This minimized clay dispersion problems, and allowed an evaluation of treated Cook Inlet water in a 'anon -sensitive" rock. Figures 1-3 show there is little permeability reduction with large amounts of throughput for filtered (0.45 microns) Cook Inlet water, filtered Cook Inlet water +3 ppm ARCO 901, or filtered Cook Inlet water +3 ppm Cla-Perm A-34. Of the three solutions, filtered Cook Inlet water shows the least reduction. . Figure 4 shows that unfiltered, settled one hour, Cook Inlet water caused severe permeability reduction. Figures 5 and 6 show that treatment of the unfiltered water with ARCO 901 or Cla-Perm A-34 causes the perme- ability reduction to be much less severe. -2- TSP 04 04 08 July, 1968 HEMLOCK CORES Having established a basis for comparison, with the Berea, the same measurements were performed on Hemlock cores. Those results are shown on Figures 7-13. Figures 7-11 show that there is basically no difference between filtered Cook Inlet water and treated (ARCO 901 or Cla-Perm A-34) and filtered Cook Inlet water. All show a 5-10 percent of Klinkenberg drop from the initial permeability to the solution to its last permeability value. All of that reduction takes place in the first 50 pore volumes of throughput and probably is caused by particle movement. This suggests that the Hemlock can be flooded at a uniform rate once this small amount of initial permeability reduction has taken place. Further permeability reduction would be caused by material injected rather than because of a rock property. Figures 12 and 13 indicate that unfiltered, settled one hour, and treated Cook Inlet water has a continuing permeability reduction, but that a considerable number of pore volumes can be injected through a sample without completely plugging the rock. The sharp permeability reduction at 300 cc. cumulative throughput on Figure 13 is unreal. It is actually a relative permeability effect caused by air entering the system. The above data suggest that it would be desirable to both treat and filter Cook Inlet water. If a filter failed, the temporary injection of treated, but unfiltered water, would cause much less damage than an un- filtered untreated water. The initial permeability to Cook Inlet water varied from 46 to 71 percent of Klinkenberg on the Hemlock plugs (Figures 7-13). Similar results were obtained by Core, Laboratories, Inc. (see Table I). All liquid permeabilities (including Kro at Swi) in the Hemlock should be expected to fall in about the same ranget -3- TABLE I LIQUID PERMEABILITIES MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 Depth Koo K ( % K ) K (% K ) K A K ) K (% KW) 30,000 � 25,000 � 10 000 � w m 119794-169795' 63.0 24.0 (39.2) 23.0 (36.5) 19.0 (30.2) 0.80 (1.2) 129395-129396' 10.0 4.2 (42.0) 4.2 (42.0) 3.4 (34.0) 0.65 (6.5) Depth Koo KC.I. (% KOO) Kw (% Koo) 11,794-11,7951 71.0 31.0 (43.6) 12.0 (16.9) 119794-115795' 16.0 7.1**(44.3) 1.8 (11.2) 129395-129396 10.0 4.2 (42.0) 2.6 (26.0) 129395-129396 11.0 4.8" (43.6) 2.4 (21.8) All measurements in millidarcys Plugs saturated with formation brine prior to measurement of permeability to Cook Inlet water KC0 Klinkenberg Permeability K30,000 Permeability to 30,000 mg/liter NaCl K25,000 Permeability to 25,000 mg/liter NaCl K10,000 Permeability to 10,000 mg/liter NaCl Kw Permeability to fresh water KC.I. Permeability to Cook Inlet Sea water loo 90 �- e0 _J m Q W 70 c W d 60 0 !Y m 30 Z W ]L Z_ 40 J ]C H- 30 Z W U 20 W a 10 F K co 365md. I i I i I i 50 Pore Vo/umes /00 100 200 300 400 500 600 700 Boo 900 1000 1100 1200 LIQUID THROUGHPUT (CC.) FIGURE 1 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (FILTERED COOK INLET WATER) BEREA SANDSTONE SAMPLE T-10 100 90 F- 30 DIN EGN K cc 391md. 150 Volumes 50 Pore /00 200 100 200 300 400 500 Goo 700 Soo 900 1000 1100 1200 LIQUID THROUGHPUT (CC.) FIGURE 2 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (FILTERED COOK INLET WATER + 3 ppm ARCO 901) BEREA SANDSTONE SAMPLE T-27 100 90 } _J m a LLJ 70 cr W 0- so ac aWo 50 z w ]c Z_ 40 J ]C 1- 30 Z W v cr 20 w a 10 0 V co 348md. f I 50 Pore Volumes /00 100 200 300 400 500 Coo 700 Soo 900 LIQUID THROUGHPUT (CC.) FIGURE 3 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (FILTERED COOK INLET WATER + 3 ppm CLA-PERM A-34) BEREA SANDSTONE SAMPLE T-12 1000 1100 1200 M 90 so CD LLJ 70 2 cr LLJ CL so �— 30 z Uj U w 20 w CL it] 0 K co 393md. 4- 41.3 Pore Volumes 100 200 300 400 500 600 700 Soo 900 1000 1100 1200 LIQUID THROUGHPUT (CC.) FIGURE 4 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (UNFILTERED COOK INLET WATER, SETTLED ONE HOUR) BEREA SANDSTONE SAMPLE T-7 100 so F- so -j cc 4% W 70 2 cr- w 0- so (D cr_ mLL) 50 z LLj le z 40 F- 30 10 0 K co 427md. 50 Volumes /00 /50 200' 100 200 300 400 500 Goo 700 Soo 900 LIQUID THROUGHPUT (CC.) FIGURE 5 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (UNFILTERED COOK INLET WATER + 3 ppm ARCO 901, SETTLED ONE HOUR) BEREA SANDSTONE SAMPLE T-19 1000 1100 1200 loo 90 d Go CD cr- w co 50 z LLJ Y Z 40 F- 30 z ui u at 20 w 0- 10 0 X co 408 md yy -4 - - - -- - 200 /00 Pore Vo/ames 100 200 300 400 500 600 700 Boo 900 1000 1100 1200 LIQUID THROUGHPUT (CC.) , FIGURE 6 PERMEABILITY VARIATION ASA FUNCTION OF CUMULATIVE WATER INJECTED (UNFILTERED COOK INLET WATER + 3 ppm CLA-PERM A-34., SETTLED ONE HOUR) BEREA SANDSTONE SAMPLE T-18 100 90 r ~ 80 J_ m Q W 70 arc w CL so c� a` m 50 z w ]G z 40 J ]C H- 30 Z w U 20 W a 10 0 K co 134 md. I 1 � I � I i i ............... I I 50 Pore Volumes /00 /50 100 200 300 400 500 Goo 700 Soo 900 1000 1100 LIQUID THROUGHPUT (CC.) FIGURE 7 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (FILTERED COOK INLET WATER) MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,921-22 FEET HEMLOCK FORMATION 1200 EXHIBIT "E" o� K co //.Omd. +Oa 90 a ao CD a` m 50 z w ]G z_ 40 J X 30 z W cr 20 w !1 10 n /OO Pore Volumes I 1 100 200 300 400 500 Goo 700 Soo 900 LIQUID THROUGHPUT (CC.) FIGURE 8 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (FILTERED COOK INLET WATER + 25 ppm HgC12) MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12,395-96 FEET HEMLOCK FORMATION 1000 1100 1200 K co /6md. 100 90 r ~ 90 _J m Q W 70 ME Qr W a so cD cc co so z w ]C z 40 J ]C H— 30 Z W V cr LO W a 10 RE /00 Pore do/umes 100 zoo 300 400 300 Goo 700 Goo 900 LIQUID THROUGHPUT (CC.) FIGURE 9 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (FILTERED COOK INLET WATER + 25 ppm H9C12) MARATHON OIL COMPANY TRADING BAY UNIT. STATE HD-2 DEPTH 11,794.95 FEET HEMLOCK FORMATION 1000 1100 1e00 100 90 ~ so J a W 70 a 1Y w 60 t9' 0` m 50 z W Y. 2 40 J Y H- 30 Z W U 0: 20 W a 10 0 C co 102 md. 3 � 1 � i I 1 1 j 1 I 1 50 Pore Volumes t00 150 100 200 300 400 500 Goo 700 Soo 900 1000 1100 1200 LIQUID THROUGHPUT (CC.) FIGURE 10 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (FILTERED COOK INLET WATER + 3 ppm ARCO 901) MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,921-22 FEET HEMLOCK FORMATION loo 90 �= 90 m a W 70 a O` W d 60 C'3 Z m 50 2 W ]C Z_ 40 J Y 30 Z W U 1r Ito W a 10 0 as 60.2 md. 50 Pore Volumes /00 100 200 300 400 500 50o 700 Boo 900 1000 1100 1200 LIQUID THROUGHPUT (CC.) FIGURE 11 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (FILTERED COOK INLET WATER + 3 ppm CLA-PERM A-34) MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-Z DEPTH 11,906-07 FEET HEMLOCK FORMATION 100 90 ~ BO J m Q W TO a 0: W C- 60 0 m 50 Z W ]e Z_ 40 J Y 30 Z W U O` 20 W a 10 0 K co /9/ md. I i i 1 fI I i i 50 Pore Volumes /00 /50 200 250 100 200 300 400 500 600 700 Soo 900 LIQUID THROUGHPUT (CC.) FIGURE 12 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (UNFILTERED COOK INLET WATER + 3 pPM CLA-PERM A-34, SETTLED ONE HOUR) MARATHON OIL COMPANY TRADING BAY UNIT STATE HD-2 DEPTH 11,921-22 FEET HEMLOCK FORMATION 1000 1100 1200 loo 90 �= 00 CD J_ Q W 70 la1 d 60 tr m 50 z Uj Y z 40 J Y 30 z W U 1r 20 W iZ 10 0 K cc 60.7 md. i I I i vIr bubbles i Ii - 1 i I 50 Pore Volumes /00 100 too 300 400 500 COO 700 a00 900 1000 1100 1200 LIQUID THROUGHPUT (CC.) FIGURE 13 PERMEABILITY VARIATION AS A FUNCTION OF CUMULATIVE WATER INJECTED (UNFILTERED COOK INLET WATER + 3 ppm ARCO 901, SETTLED ONE HOUR) MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,906-07- FEET HEMLOCK FORMATION APPENDIX I PHOTOMICROGRAPHS OF HEMLOCK SAND ON WHICH MEASUREMENTS WERE PERFORMED BY CORE LABORATORIES, INC. Legend Q quartz F feldspar C clay m mica p pore 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12,395-96 FEET PLUG #1 'r1TT+= y i 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12,395-96 FEET PLUG #2 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12,395-96 FEET PLUG #2A 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2* DEPTH 12,395-96 FEET PLUG #3 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,717-18 FEET PLUG #4 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE ##D-2 DEPTH 11,717--18 FEET PLUG ##5 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,824-25 FEET PLUG #7 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,824-25 FEET PLUG #8 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,794-95 FEET PLUG #10 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 119794-95 FEET PLUG #l0A 1X g' so i 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH ll,794-95 FEET PLUG #11 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,794-95 FEET PLUG #11A 1pn 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 119794-95 FEET PLUG #12 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,894-95 FEET PLUG #13 14 L C, 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,903 FEET PLUG #17 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,903 FEET PLUG #18 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,907 FEET PLUG #19 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,907 FEET PLUG #20 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,907 FEET PLUG #21 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 111911 FEET PLUG #22 1X x 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,911 FEET PLUG #23 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,911 FEET PLUG #24 'p��q� fin.. ;•r%�+ + r'„1'. #1 '9'� > 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,915 FEET PLUG #27 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 115918 FEET PLUG #28 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,918 FEET PLUG #29 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 119918 FEET PLUG #30 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 115925 FEET PLUG #31 1X 11 r �y rXN 0.0 .•� � y 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 119925 FEET PLUG #32 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,925 FEET PLUG #33 SW. 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,930 FEET PLUG #35 w, t 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,935 FEET PLUG #37 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 119935 FEET PLUG #38 kip. ,30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,967 FEET PLUG #40 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,972 FEET PLUG #43 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,972 FEET PLUG #44 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 11,976 FEET PLUG #46 WA 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12,193-94 FEET PLUG #49 1X i A 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12,199-200 FEET PLUG #52 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 129199-200 FEET PLUG #53 ix 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12,199-200 FEET PLUG #54 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 129397-98 FEET PLUG #55 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 1231397-98 FEET PLUG #56 .".,r "'r. } � , 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12,389 FEET PLUG #58 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12 089 FEET PLUG #60 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 125400-01 FEET PLUG #61 1X '117 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 129400-.01 FEET PLUG #62 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 12,400-01 FEET PLUG #63 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE #D-2 DEPTH 129410-11 FEET PLUG #64 1X 30X MARATHON OIL COMPANY TRADING BAY UNITS STATE #D-2 DEPTH 12,410-11 FEET PLUG #65 1X 30X MARATHON OIL COMPANY TRADING BAY UNIT STATE ##D-2 DEPTH 125410-11 FEET PLUG ##66 AFFIDAVIT OF PUBLICATION STATE OF ALASK.A, ) THIRD JMC1AL DISTRICT,) ss. -- _ being first duly sworn on oath deposes and says that is the- _"^'-= of the Anchorage mews, a daily news- paper. That said newspaper has been approved as a legal news- paper by the Third Judicial Court, Anchorage, Alaska, and it is now acid has been published in the English ianguage continually as a daily newspaper in Anchorage, Alaska, and it is now and during all of said time was printed in an office maintained at the aforesaid place of publication of said news- paper, That the annexed is a true . copyof a - --------------------------------- as it was published in regular issues (arid not in supplemental form) of said newspaper for a period of __ _one __ insertions, commencing on the `� - -- day r� i U f"'"71 t "% of `� -------®� 9 - -- - , and ending on the ------ I ------- day of o6 gg ------------ , -- both dates inclusive, and that such newspaper was regularly distributed to its subscribers dur- ing all of said period. That the full amount of the fee charged for the foregoing publication is the sum of 12 . C'0 which arriount has been paid in full at the rate of 25¢ per line; Mini- rnum charge $7.50. Subscribed � dsworn to before 22 "7 St me this --____-- day of--------------------, 1 9---- Notary Public in and for' the State of Alaska, Third Division, Anchorage, Alaska MY COMMISSiC N EXPIRES i NOTICE OF PUBLIC HEARING STATE OF ALASKA DEPARTMENT OF NATURAL RESOURCES DIVISION OF OIL AND GAS Alaska Oil and Gas Conservation i Committee Conservation File No. 95 Joint Resolution No. 11. Re: The Application of Union Oil Company of California for mod ification of Conservation Order No. 80 to include the following pool rule: Gas from a gas well may be per. witted to escape, into the air with- out Committee approval when such gas is used to artificially lift oil from a pool in cases of operational necessity provided no such escape be for more than 30 days in each such case. Notice is herebygiven that the, Union Oil Company of California has petitioned the Alaska Oil and Gas Conservation Committee for an or- der which would make the above referenced addition to the McArthur' River pool rules. A public hearing on this matter will be held on August 27, 1970 in the Ben Craw- ford Memorial Building, Third Ave- nue and Eagle. Street, Anchorage, Alaska, at 9:30 a.m., at which time affected and interested parties will be heard. THOMAS R. MARSHALL, JR. Executive Secretary Alaska Oil and Gas Conservation Committee 3001 Porcupine Dr. Anchorage, Alaska 99504 'Pub.: August 15, 1970 Legal Notice No. 3063 5 NOTICE OF PUBLIC HEARING STATE OF ALASKA DEPARTMENT OF NATURAL RESOURCES DIVISION OF OIL AND GAS Alaska Oil and Gas Conservation Committee Conservation File No. 95 Re: The application of Union Oil Company of California for modification of Conservation Order No. 80 to include the following pool rule: Gas from a gas well may be permitted to escape into the air without Committee approval when such gas is used to artificially lift oil from a pool in cases of operational necessity provided no such escape be for more than 30 days in each such case. Notice is hereby given that the Union Oil Company of California has petitioned the Alaska Oil and Gas Conservation Committee for an order which would make the above referenced addition to the McArthur River pool rules. A public hearing on this matter will be held on August 27, 1970 in the Ben Crawford Memorial Building, Third Avenue and Eagle Street, Anchorage, Alaska, at 9:30 a.m., at which time affected and interested parties will be heard. Thomas R. Marshall, Jr. v Executive Secretary Alaska Oil and Gas Conservation Committee Anchorage, Alaska 99504 Publish August 15, 1970 Union Oil and Gas D', ;ion: Western Region Union Oil Company of California 2805 Denali Street, Anchorage, Alaska 99503 Telephone (907) 277-1481 August 12, 1970 I . 3 41Y L; I.af ir.r Alaska Oil and Gas Conservation Committee 3001 Porcupine Drive Anchorage, Alaska e°;SO4 APPLICATION FOR EXCEPTION TO SECTI OI'v 2158(b) OIL AND GAS CONSERVATION REGULATIONS TRADING BAY UNIT STATE K-20 AND FOR AMENDMENT OF CONSERVATION ORDER NO.'80 Gentlemen.: Reference is made to Conservation File No. 94, Emergency Order, dated July 23, 1970. Circumstances beyond the control of Union Oil Company of California, operator of the Trading Bay Unit, and Atlantic Richfield Company, sub -operator of the King Salmon Platform, have prevented the repair of the damaged compressor creating the emergency requiring the above Emergency Order. A part necessary for such repair was not available and had to be manufactured thus causing an unforeseeable delay in the repair. It is anticipated the compressor will not be operational' until approximately August 26, 1970. Unless gas from the Trading Bay Unit State K-20 well can be utilized for gas lifting operations, production from some wells will have to be curtailed and other wells will have -to be shut in. The Engineering Report referred to in Union's application for exception to Section 2158(b) dated August 3, 1970 contains information presenting strong evidence of the likelihood of well bore damage to wells shut in for an extended period of time. Unio,-., therefo;rve respectfully requests an Emergency Order be issued allowing,exception to S ctic;% 2158(b) of the Oil and Gas Conservation Regulations to permit the escape into the air of gas from Trading Bay Unit State K-20 well after being utilized for lifting oil for the y . period August 13, 1970 through August 27, 1970 inclusive or until the damaged _i_ _..._._._.._.�.... compressor is again operational, whichever first occurs. It s.. also requested that the McArthur.._......_.._._.........._.__._.......... _........ �.. include that following Order No. 80 be amended to _... ,,...._._..., . Gas from a gus well may be permitted to escape into the air without Committee approval when such gas is used to artificially lift oil from a pool in cases of operational necessity provided no such escape be for more than 30 days in each such case. 'V DO Pku pwVj,,ijuN OF OIL AND GAS �•,�*1C li �l�AG � Alaska Oil and Gas Coi�.servat i on Committee Page 2 August 12, 1970 It is requested a hearing be held on August 27, 1970 at which testimony may be presented to support this request for Field Rule Amendment. Very truly yours, UNION OIL COMPANY OF CALIFORNIA Unit Operator By Robert T. Anderson ��