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Home My WebLink AboutCO 276Conservation Order Cover Pa~e 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. Z~_~_ Conservation Order Category Identifier Organizing RESCAN Color items: [] Grayscale items: [] Poor Quality Originals: [] Other: NOTES: 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 BY: Scanning Preparation Production Scanning Stage 1 PAGE COUNT FROM SCANNED DOCUMENT: i / PAGE COUNT MATCHES NUMBER IN SCANNING PREPARATION' ,~ YES ~ NO BY: Stage 2 IF NO IN STAGE 1, PAGE(S) DISCREPANCIES WERE FOUND: YES __ NO (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 ALASKA OIL AND GAS CONSERVATION COMMISSION 3001 Porcupine Drive Anchorage, Alaska 99501-3192 Re: THE REQUEST OF ARCO ALASKA ) INC. for amendments to Kuparuk River ) Oil Pool rules regarding key well ) pressure surveys and productivity ) profile requirements ) Conservation Order No. 276 Kuparuk River Field Kuparuk River Oil Pool August 6, 1991 IT APPEARING THAT: . . . By correspondence dated June 10, 1991 ARCO Alaska, Inc. requested amendments to Rule 9 of Conservation Order No. 173 (CO 173) and Rule 8 of Conservation Order No. 230 (CO230). Notice of public hearing pursuant to 20 AAC 25.540 was published in the Anchorage Daily News and the Anchorage Times on June 22,1991. No protests were filed with the commission. FINDINGS: . . . . . Full field waterflood development continues in the Kuparuk River Oil Pool (KROP). Additional Enhanced Oil Recovery (EOR) methods are being utilized in portions of the KROP. EOR operations affect well performance ( i. e. water-oil-ratio and gas-oil ratio changes occur as a result of waterflood and miscible gas injection operations). Rule 9 of CO 173 requires productivity profile surveys to be run in wells which exhibit rapid changes in performance. Rule 8 of CO230 requires one well per drillsite be designated a key well and a pressure survey be taken annually. CONCLUSIONS: le 3~ Rapid changes resulting from EOR operations are normal events. Wells which exhibit performance changes due to EOR operations need not be surveyed, as changes are expected and explainable. Revising the key well pressure survey requirements to allow an annual survey for each pad rather than an individual designated well per pad will not reduce the number of surveys nor detract from' the commission's ability to assess reservoir performance. Conservation Order 276 Date: August 6, 1991 Page 2 NOW, THEREFORE, IT IS ORDERED THAT Conservation Orders 173 and 230 be amended to read as follows: RULE 1 Conservation Order No. 173, Rule 9(b) is amended to read: Subsequent surveys shall be run in wells which exhibit uncharacteristic changes in performance. Subsequent surveys shall also be required in wells which have had remedial work performed to change the production profile unless the remedial work results in only one sand interval being open to the wellbore. RULE 2 Conservation Order 230, Rule 8(b) is amended to read: One bottom-hole pressure survey on a well from each drillsite shall be performed annually. The commission may require additional surveys as deemed necessary. DONE at Anchorage, Alaska, August 6,1991 David W. ~°~fiston,~'C'glainn'"~ Alaska Oi~onservation Commission Russell A. Douglass, Commi~ioner Alaska Oil and Gas Conservation Commission STOFO 330 (' PO# AO 08 567(~ AFFIDAVIT OF PUBLICATION STATE OF ALASKA. ) THIRD JUDICIAL DISTRICT. ) ss. Jennifer Gillquist being first duly sworn on oath deposes and says that .... she ........ is the .... Legal Rep .......... of the Anchorage News, a daily newspa- per. That said newspaper has been approved by the Third Judi- cial Court, Anchorage, Alaska, and it now and has been published in the English language continually as a daily newspaper in Anchor- age, Alaska, and it is now and during all said time was printed in an office maintained at the afore- said place of publication of said newspaper. That the annexed is a true copy of ar]....a...d.~..e..r..~.~..,m...e.~.,t. ........ as it was published in regular issues (and not in supplemental form) of said newspaper on June 22, 1991 , Notice of Public Halt:lng STATE OF ALASKA" , , .'AlaSka Oil and. Gas .i Con'servatioJt commission ,, , Re: · ;":: ' ' O The application,~ ARC ; Alaska, In~c~, f~.;',:~mend- merit to Rule $ of~.~On'4~'rva' ' . lion OrderS, NO. ', ~ARCO Ala'~Y'a,,i~?:'l~y let- ,:tar ,dated JUlte 10,. :..19~1' .requested an,, ame6dment to Rule 8 of ConservatiOn O'rder 'No'. 230. The amen'dr~ent Would modify, ,the 'keY, well ¢~eSSure sur~eY prog¢~m b.y replacing" it Will1",,, 'yearlY ,surveys from bt' least One well from each pad/. . :".A' person. WhO. may be ., Iiarm'ed · by ' '.if the requested .iOrder is 'isstled may file a ~' W'r, lteen proteSt'.prior to 4:00 , pm july '.8, ."1991; with the I" "Alaska: Oi1' and .Gas .Conserva- .: .flon.. commission '(hereinafter l~.ifhe .Com'm.isSlon)~ 300'1 Porcu- , :'blne'Drive., Ar~cti~rage~' Alaska t '9~50i', and request a hearing ! .0n..th.e,.matt. er. I.f:.'the 'protest .i.s '.'tlO3ew, filea .and:.~"a'ises a suo- I; ,st~l'ntlal .and .. :rn'at[,rla'l '.issue ,,', ~uClal to" tl~e"v;~om'mlsSlon,'S "d~}er:mi'~at, on,';a i ~ith~':m alter; ~'Will be:: held: alr;:~ne :,,".ab~.v,e addreSs' i at'"~l':.:. P;m.' ","r; ~1~ 3, ~991¢'.ln,.con'ferntance i."i tl~ o. AAC;.2$ 540.'.'1f a:..hear. ".~'i g',,,~;t~ ;,'i ir'~may' :coilfl'rm:'thiS':'b'~ ;',';," il ;j' the ,,commisS. i,0h's O.f ",' :~ '907): '279:1433 atTffr, JUl~ !!?, i: ~ .no ' ~r~t~t :. t's.'.i..fl~e~, i".',~; e~mm.lsSlo. h.i;~lill ..'.censiff[~ ;,,.' ~ Suance".o~t~ne 0raer,,w~ n !~,','.! ~jf h'ea¢ldg, ',,"," '.'.': . '~ ,i ,',, ,;~ I,!'i'; ssell, 'A, Doug assr: ,~, I';~'' :.".~ m'm Ss oner. ',., ',, lli:.". :.;.I aSl(a,i'Oilh~and'.Ga.s.''.','', ':' r',, ". nservatlbn'C°rnmlSsi0n I'";' b. LJune'"2~; le91 ';" 1':': ;~':i ):08-5674, .'" and that such newspaper was regularly distributed to its subscri- bers during all of said period. That the full amount of the fee charged for the foregoing publication is not in excess of the rate Charged private individuals. , --. signed ~~./~,~,~J~ ~~7 SubscrilSed and s~y,,orn to before me this~2day of.~,~.~[ I .... Notary Pub4ic in and fo~ the Stale of Ala.~ka, Third Division. Anchorage, Alarm MY COMMISSION EXPIRES ~Y CO;¢,.MISsIoK EXPIRE~;. ..~9. JANUARY 10, 1995 AD#9440 STOF0330 t" PO# AO 08 56 74 AFFIDAVIT OF PUBLICATION STATE OF ALASKA, ) THIRD JUDICIAL DISTRICT, ) ss. being first duly sworn on oath deposes and says that .... s. he ........ is the ..... Legal. Rep ........... of the Anchorage News, a daily newspa- per. That said newspaper has been approved by the Third Judi- cial Court, Anchorage, Alaska, and it now and has been published in the English language continually as a daily newspaper in Anchor- age, Alaska, and it is now and during all said time was printed in an office maintained at the afore- said place of publication of said newspaper. That the annexed is a true copy of a~.....a...d.~..e..r..?..-f:.s..../c..e..~..~ ......... as it was published in regular issues (and not in supplemental form) of said newspaper on June 22, 1991 ' , STATE OF A~,ASKA ' Alaska Oil and GaS " ,,Conservation commission ' The aPpllca~iori.: '°f _AmRenCdO., ' AlaSka, IflcJ..tor am ' merit to Rule8 of Conserva- tion Order No; 23~. ' -!' ",'. ARCO .AlaSka, I. nc...by let- r ;' ter .'dated June i0, 199,1 has .,requested ah emendment to .R. uie 8 of C~ation' Order No. 230. 3~i~'"' amendment Would. modify .the key well pressure :surVey program'by .re[placing It/.~= .wit I~. , _Y_e ~:r,.I ~ ' surveys t~om at leaST Qn~.W~-, · f. rsm eac~h pad,..' ; 1.,.,:A,,oers0n :who may .be. . . ,;:_;,J~,~h hv "if. the i, equ'esfea =;r°~le"~"~s-i'ssU'ed: maY ~flle. ~ 'Wrlteen Protest" prlOr%.~o ~;.pm ,.i~luW. '8,. '1~1~: Wi:th, the. :.,'AlaSka Oll. and Gas'!c°nserva' "t,i6n "cummlssl°n (hereinafter ..';the :'commlsSlon),.'300~: .'p0r~u- '~ i'.pine DJ. ye, AnCh0r~.g'e~' Alaska ;'99501 ~" and. request "a. hearing .'.'on'the matter,'',lf'the; hrotest Is ':'.timelY filed and.':[aises'a sub. /". i~tlal' and m'ate~lal' ssue · ".'Sta ~' ' 0 ~, :Crucial'. to' the., c0.m. ml. sS:1, atj0n a nea¢.mg or · .i.deter. min ~ , ..... ....... ~ ~'. rnaffer' w I .be, Iield at , . ..,.~ ~ ,, ,h*~above't address...at. ~, :p, ..m, ~uW ~ 1991, in contorm, anc, wi~ 2'0'AAC 25.540, If a ne.ar; {;~; Is to be bela,' interes~.ea . ;;;,~+~ mav confirm this ~,='.~;,~ ;'~e'Commisslon's m- 'f~l~'~;"[~0~'i 279-1433 aft.er,.J,u_l,y ' If ~10 IS Tlleu, consider der,witl!-~." .'. ';.... ': [. =s'' ' '"I i s ¢ . . '..'. . ,mission:. .. . i :','" .. and that such newspaper was regularly distributed to its subscri- bers during all of said period. That the full amount of the fee charged for the foregoing publication is not in excess of the rate charged individuals. private /~_/(~~ -~ sign ed ~//-' ,/~ ~/li ~~.A ~'"~ Subscribed and sworn to before me this~,,.~..day o~'/~..~.~.~ ..... Notary Public in and ~ the State of Alaska. Third Dtvlaion. Anchorage, Alaska MY COMMISSION EXPIRES .. ~y., .~),~,, ~ ~'~ ~'~.]~ · '~ ~11]~ ~ ......... JANUARY 10, ]995 E[¢E'IVED J U L - 1 1991 Nasl~a 0il & Gas Cons. Commissioa ~nch0rage STOF0330 PO# AO 08 567~'~ AFFIDAVIT OF PUBLICATION STATE OF ALASKA. ) THIRD JUDICIAL DISTRICT, ) ss. .. Jenni far, Gi 1 lquis t .......... being hrst duly sworn on oath deposes and says that .... ..s..he. ........ is the ...Le~/'a..!...Rep ............. of the Anchorage News, a daily newspa- per. That said newspaper has been approved by the Third Judi- cial Court, Anchorage, Alaska, and it now and has been published in the English language continually as a daily newspaper in Anchor- age, Alaska, and it is now and during all said time was printed in an office maintained at the afore- said place of publication of said newspaper. That the annexed is a true copy of au....¢.dv..er.t.i¢men.t. ........ as it was published in regular issues (and not in supplemental form) of said newspaper on June 22, 1991 __ ,Notice of Public Hearihg STATE, OF ALASKA ,, Alaska Oil and Gas Conservation Commission', Re: The application of ARCO! Alaska, Inc., for amend- ' ment to RUle 9 of COnserva-, :tlon ,Order No. 173. ARCO Alaska, Inc. by let-! tar dated June 10, 1~1 has~ requested an' amendment to Rule 9 of Conservation Order No. 173. The amendmentI would revise the rule to .re-, 'quire productivitY profiles on~l ly in cases where the observedl changes, in Production perfOr- mance are ~ncharacterisflc. . '"',;i,'A person 'Who may be harmed by if .the requesfed 'order is issued may file a written protest,~prior to 4:00 ~pm, July 8, .1~1, with the : .Alaska OII 'and Gas ConSerVa- ..,~!~fl0n, CommissiOn .(hereinafter '.,',the.COmmiSsion'), 3001 Porcu- :r':'!pl D'r lVe,."Anchorage,:. AlaSka 99501, and'request a..hearing ,' one'.the ,m after. "! f, the. 'protest .is ti:mely filed' and/ralses.' a sub- sta:rltlal and. materf'al.' Issue crucial to"..the. Com'mlSslon.'s '~'¢leterminatlon';' a' hearing on .:.the matter: Will. be ' hal.d,: at 9: .: a'..nl, on.July 23,.1991, in'con. formance 'with 20.' .AAC. 25.~40.: .'..f a .hearl'ng ".I:S..tO.: be · held, . ]'nteresfe~ pa'rt!es';, ma~ con, . firm: thiS'.; by. call.lng ,the', .' mission's office; ;.(907)'.279.1433 after: July 8; 1~1; If 'n~ 'protest I...is f'iled~, the commission .will ,.~c0nsl.de~','the :ISsuan'ce. of the I. order without: a..hearlng. '.: ;' ,' RUssell..A~ O0'tig'tasS; .' .': Comm ssioner'. '~' ..' I .-.". Alas:ka'OIl' and Gas " [ i' c0nservati0n.'. ':com. rn'.ISs!°n '" I.".;.., , Pub: June .22/1~91 ' I ' AO-08~5~74, '.£ ',' and that such newspaper was regularly distributed to its subscri- bers during all of said period. That the full amount of the fee charged for the foregoing publication is .not in excess of the rate charged private individuals. s i g n ed (~....¢¢ ~4'~/~ Subscribed and sworn to before me this..~..~-ay of... Notary Public in and fo~ the State of Alaska. Third Division. Anchorage, AJaa~a MY COMMISSION EXPIRES AD#10043 STOF0330 PO# AO 08 5673 AFFIDAVIT OF PUBLICATION STATE OF ALASKA, ) THIRD JUDICIAL DISTRICT, ) SS. ...Jenn ife r. .Gi 11 qu is t .......... being first duly sworn on oath deposes and says that .... ..s.he. ........ is the ...Leg'a.../...R.ep. ............. of the Anchorage News, a daily newspa- per. That said newspaper has been approved by the Third Judi- cial Court, Anchorage, Alaska, and it now and has been published in the English language continually as a daily newspaper in Anchor- age, Alaska, and it is now and during all said time was printed in an office maintained at the afore- said place of publication of said newspaper. That the annexed is a true copy of au...a..dv.e.r.t.i$men.t. ........ as it was published in regular issues (and not in supplemental form) of said newspaper on June 22, 1991 .... NOtice of Public Hearing - STATE OF ALASKA Alaska Oil and Gas Conservation Commission ,Re: , .. The application of ARCO . Alaska, Inc., for amend- ment to Rule, 9 of Conserva- ~tlOn Order No. 173. , ARC° Alaska, Inc. by let- ter dated June 10, 1991 has requested an amendment to Rule 9 of Conservation Order. NO. 173. The amendment would revise 'the rule to re- quire productivity profiles on- ly. in cases where the observed changes'in production perfor- 'mance are uncharacteristic. .'.:;.A PerSon. Who .may be .harmed 'by if the' requested' Order is Issued may'.'file a . Written. protest prior .to 4:00 .'p~ ~July. '8,,' 1991, with the .AlaSk~j Oil and Gas'conserVe- ;'flori. commission (hereinafter ~ the,.. Commisslon)',~ 3001 P0rc0- . pine :Drive, Anchorage, Alaska .9950!;: a~d 'request a' I~earlrig .on. the' m'atter... ~ If the ,Protest.is 'timely filed, and' ralses.'.a~, sub- ".sta'ntral,.::and m.aterira,l:'...issue .crucial' to the,. commlssl0nts .. determinatl0n, ~ ,a.:hearing .the matte~ will Cbe held at 9:00 "'a~m. ,on: JUly .23~. 1991;. in con- formance with 20 AAC 25:540~ ,If a hearing is to be held,~ '. Interested parties may con- . firm this by calling the Com- ' mission's office, (907) 279-1433 after: July 8, 199h I.f..n~ protest ' , Is "fi,leq,~ the .'(~ommlssion 'Will ..i'con~!der, ..'the....:.issUance of Fi.;the .:. "'.order Without. a hearing.. ':~'.~ , Russell A:. DOuglass'; Commlss oner. ". ' '.',' ",Alaska.O.il and ~aS .' conServation,~.'co'm m,lssi0n.'. ..:,,.' p.ub~ June: 22;.."i991 ,;, AO~08-5674 ~,... . . and that such newspaper was regularly distributed to its subscri- bers during all of said period. That the full amount of the fee charged for the foregoing publication is not in excess of the rate charge~ private individuals. ¢ s i g n e d~.. _,¢'{..,:~ 'J~, Subscribed and sworn to before me this~-~..day of...~..~ Notary Public in and for the State of Alaska. Third Division. Anchorage, Alaska MY COMMISSION EXPIRES N'.'¢ C0¢,~¢~lS5~0't'4 EXPIRES ...... · j;~;~,~,'l"~O;"t~ .............. R'ECEIVED J U L - 1 t991 Alaska Oil & Gas Cons. Commission Anchorage PROOF OF PUBLICATION THEt !ORAGE TIHES P.O. BOX 40 ANCHORAGE, ALASKA Alaska Oil & Gas Conservation 5001 Porcupine Dr., ANCHORAGE, AK 99501 VICKIE H. HCHAHON , BEIN6 DULY SNORN, ACCORDIN6 TO LAN DECLARES: THAT HE/SHE IS THE LEGAL CLERK OF THE ANCHORAGE TIHES, A DAILY NENSPAPER PUBLISHED IN THE TONN OF ANCHORA6E IN THE THIRD 3UDICIAL DIVISION, STATE OF ALASKA, AND THAT THE NOTICE OF ..........................AO-eB-S&72 A COPY OF NHICH IS HERETO ATTACHED, NAS PUBLISHED IN ................... OF THE ANCHORA6E TIHES. 8EGINNIN6 ON ....................... ENDINGON .......................... I ISSUES B&/22/91 THE SIZE OF THIS AD NAS ............55 LINES : '. Nofleeof Pul~c~'Heai~lng ' .... STATE OF ALAS. ICA ' "'~' "AlatkC~OIl'ana, i,* ' ~lC.Ofllerv~ ~tl~p Commission n~,:, Ti~:'apPlimti~h,',~ ARCO '. ,, Alaska; Inc~ for :ami~dment , to Rule' 8 of", C0fl~ervotlon ,, Qrder NO~ 2]0;" , "~..i~Co ^iaSKo,' 'Inc.. clat~ ..june ',10~" 1991 has, re- ?he,'amendment ~W~uld,' modl{Y. th~:K~-?~W~ll gr~s~re',: survey y~y.~e~s',~m, at I~st,0ne, ~em'~eh',~.~ ', ,,,, ',, , '", '~Q.~ I~~-~ ,a~ me..m~,er.. ~t me p~mst ~s t[mM~.~flJ~ an9 rplm a su~ sta~hm aha mamrml I~ue cru- clal'~ ~ ~ommlnlon's ~eter- mlnaflon, a h~rlng ~' the mat- ter will ~ hel~ at the a~v~ drm' at 1:~ ~m on July 23, 1~1'; In ~n~rman~ with AAC ~. If a ~rlng Is held;' In~est~ ~Hles may ~n~lr~ls..b~ ~lll~.the. Com- mmon'~bOffl~, (~7) ~-1~ ahr J~l~ 8,1~1. If no ~rotest fll~, ~e' Comml~l~ will con- ~Tder fh~l~n~ ~ the order wlthou~ a.~rlng. Ru~II A Douglass, '. '" comml~loner AlasKa OII an~ ~s · · 'Con~atlon Commllslon Pub~ June.~., I~1 AO~ THE PRICE OF THIS AD IS ............. $ 24.75 THE AD NUflBER IS .................... ~17~162 SUBSCRIBED AND SNORN TO BEFORE HE THIS ................... 25 DAY OF 3u.n,1991 NOTARY PUBLIC OF THE STATE OF ALASKA " ,RECEIVED J U L - 2 t991 Alas.l{a.OJl ;& Gas Cons. Commission ~Anchorage HY COHHISSION EXPIRES .............../~~. ~-¢~/~/ PROOF OF PUBLICATION TH~' ,tORAGE TIHES P.O. BOX 48 ANCHORAGE, ALASKA 99518-8848 Alaska Oil & Gas Conservation 5881 Porcupine Dr., ANCHORAGE, AK 99581 VICKIE H. HCHAHON , BEING DULY SMORN, ACCORDING TO LAX DECLARES: THAT HE/SHE IS THE LEGAL CLERK OF THE ANCHORAGE T]HES, A DAILY NEMSPAPER PUBLISHED IN THE TOMN OF ANCHORAGE IN THE THIRD aUDICIAL DIVISION, STATE OF ALASKA, AND THAT THE NOTICE OF ..........................AD-88-5671 '~ Notice, of PubliC,Hearing : ,::, STATE OF, ALASKA, Alaska Oil and Gas, ConservatlancommlsslO A COPY OF MHICH IS HERETO ATTACHED, NAS PUBLISHED IN ...................! ISSUES OF THE ANCHORAGE TIHES. BEGINNING ON .......................86/22/9! ENDING ON ..........................86/22/9! THE SIZE OF THIS AD WAS ............ 56 LINES , ~Mor the Issuonee.~Of.'t , Wlthout:o~heerll~ · ?'..'.,,:., R~S~i'i'~i DOuglass,. ..... ...J :.'" Cemmlslloner'.:.'.',, . II .... AIO~kaOIl'ondG~iS ':'' II · . · Con~ervotlon'Commlsslon'. ,: SIGNED ....... ~/~'~. ~{. THE PRICE OF THIS AD IS ............. $ 25.28 THE AD NUHBER IS .................... ~1~166 SUBSCRIBED AND SMORN TO BEFORE HE THIS ................... 25 DAY OF aun,1991 R£¢ lvrco A]asl~a Oil & Gas Cons. NOTARY PUBLIC OF THE STATE OF ALASKA HY COHHISSION EXPIRES ............... ~// ~ // / , Notice of Public Hearing STATE OF ALASKA Alaska Oil and Gas Conservation Commission Re: The application of ARCO Alaska, Inc. for amendment to Rule 9 of Conservation Order No. 173. ARCO Alaska, Inc. by letter dated June 10, 1991 has requested an amendment to Rule 9 of Conservation Order No. 173. The amendment would revise the rule to require productivity profiles only in cases where the observed changes in production performance are uncharacteristic. A person who may be harmed if the requested order is issued may file a written protest prior to 4:00 pm July 8, 1991 with the Alaska Oil and Gas Conservation Commission (hereinafter the Commission), 3001 Porcupine Drive, Anchorage, Alaska 99501, and request a hearing on the matter. If the protest is timely filed and raises a substantial and material issue crucial to the Commission's determination, a hearing on the matter will be held at the above address at 9:00 am on July 23, 1991 in conformance with 20 AAC 25.540. If a hearing is to be held, interested parties may confirm this by calling the Commission's office, (907) 279-1433 after July 8, 1991. If no protest is filed, the Commission will consider the issuance of the order without a hearing. Russell A. Douglass ~/ Commissioner Alaska Oil and Gas Conservation Commission Published June 22, 1991 ARCO Alaska, Inc~" Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 276 1215 June 10, 1991 Mr. David W. Johnston, Commissioner Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501 RE: Application for Modification of Rule 8, Conservation Order 230 Dear Mr. Johnston: .... Please consider this letter a request by ARCO Alaska, Inc. as Operator of the Kuparuk ..River Unit, for the modification of Rule 8, Conservation Order 230. Applicant requests that the key well requirements of Rule 8(b), Conservation Order 230 be revised. This Rule requires a designated key well on each drill site, and an annual pressure survey on that particular well. With the continued success of the Kuparuk waterflood, the current key well program has reached its useful life. The applicant proposes instead to simply obtain a reservoir pressure on one well per drill site annually. This revision will result in a broader data base of Kuparuk reservoir pressures , while maintaining the same data collection frequency. This change maximizes the value of Kuparuk pressure surveys and increases efficiency. Applicant believes that revision of the key well program as outlined above will not adversely affect ultimate recovery or create-waste and conforms with prudent oil field operating and reservoir management practices. Sincerely, P. S. White Senior Operations Engineer / ECEIVED J UN 1 1901 Alaska 0il & Gas Cons. Commission Anchorage ARCO Alaska, Inc. is a Subsidiary of AtlanticRichfieldCompany AR3B-6003-C ARCO Alaska, Inci' Post Office Box 100360 Anchorage, Alaska 99510-0360 Telephone 907 276 1215 June 10, 1991 David W. Johnston, Chairman Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, AK 99501 RE: Application for Modification of Rule 9, Conservation Order No. 173 Dear Mr. Johnston' Please consider this letter a request by ARCO Alaska, Inc. as Operator of the Kuparuk River Unit, for the modification of Conservation Order 173. Applicant requests that Rule 9(b) of Conservation Order 173 be modified to require subsequent productivity profiles for wells that exhibit uncharacteristic changes in performance. Currently, the rule requires productivity profiles for wells which exhibit rapid changes in performance. The nature of both waterflood and WAG (Water-Alternating-Gas) operations are such that rapid changes are not only common but expected. This change serves to clarify the Rule's wording while preserving its original intent. Applicant believes that the changes as outlined above will not adversely affect ultimate recovery or create waste and conforms with prudent oil field operating and reservoir management practices. Sincerely, P. S. White Senior Operations Engineer ARCO Alaska, Inc. is a Subsidiary of AtlanlicRichfieldCompany R'.ECEIVED JUN 1 4L 1991 .OiJ .& Gas Cons. Commission .~nch0rage