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Home My WebLink AboutCO 176Conservation 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. TA Conservation Order Category Identifier Organizing RESCAN [] Color items: [] Grayscale items: [] Poor Quality Originals: [] Other: NOTES: BY: ROBIN ~ Scanning Preparation 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 TOTAL PAGES BY: ROBIN MARIA Production Scanning Stage 1 PAGE COUNT FROM SCANNED DOCUMENT: PAGE COUNT MATCHES NUMBER IN SCANNING PREPARATION: /~YES __ NO Stage 2 IF NO IN STAGE 1, PAGE(S) DISCREPANCIES WERE FOUND: __ YES NO BY: ~ARIA DATE: ~)'--~"-(~,~ /S/ '"'" ~"~ (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 APPLICATION OF AMOCO ) PRODUCTION COMPANY ) requesting an exception to ) 20 AAC 25.035. ) Conservation Order No. 176 Platforms Anna, Bruce, Baker and Dillon; Cook Inlet. September 1, 1981 IT APPEARING THAT: Amoco Production Company, by letter dated July 7, 1981, requested the Alaska Oil and Gas Conservation Commis- sion to grant an exception to part of the surface hole diverter system requirements in 20 AAC 25.035(b)(1) for the drilling rigs on the referenced platforms, which requires, among other things, the equivalent of a six- inch line with at least two lines venting in different directions. · Notice of Public Hearing was published in the Anchorage Times on August 20, 1981. 3. There were no protests to the application. FINDINGS · · 20 AAC 25.035(b)(1) is as follows: (b) Surface Hole Diverter System: (1) before drilling below the conductor string, at least one remotely controlled annular pre- venter and flow diverter system must be installed; the annular preventer must permit the diversion of hydro- carbons and other fluids; the low pressure, high capac- ity diverter system must provide at least the equivalent of a six-inch line with at least two lines venting in different directions to insure safe downwind diversion and must be designed to avoid freezeup; these lines must be equipped with full-opening butterfly type valves or other valves approved by the Commission; a schemat~ic diagram, list of equipment, and operational procedure for the diverter system must be submitted for approval with the application for a Permit to Drill (Form 10-401); and The drilling rigs mounted on the four referenced platforms have diverter systems that vent gas in the derrick at either the derrickman's position or the crown. Conservation Order No. 176 Page 2 o 4, The diverter systems on the drilling rigs on the referenced platforms have functioned safely for more than 10 years. An exception, as requested, to 20 AAC 25.035(b)(1) for rigs mounted on offshore platforms will not create an unsafe drilling practice. NOW, THEREFORE, it is ordered that: The drilling rigs now mounted on platforms Anna, Bruce, Baker and Dillon are exempted from the specific requirements of 20 AAC 25.035(b)(1) which require the equivalent of a six-inch line with at least two lines venting in different directions. A system with a minimum four-inch diverter flowline to a degasser and vented by a minimum four-inch line at the derrickman's position or the crown is approved. DONE at Anchorage, Alaska and dated September 1, 1981. ffoyl~FH. R~milt'on, Chairman Alas~%a Oil and Gas Conservation Commission Harry W. Kugl~r, Commissioner Alaska Oil and Gas Conservation Commission 6~ ~i~o AL ~ ~ e lasts Oil nd Gas onse~v~t[on Commission 2. PUBLISHER ADVERTISING ' 'ORDER NOTICE TO PUBLISHER INVOICE MUST BE IN TRIPLICATE SHOWING ADVERTISING ORDER NO., CERTIFIEDAFFIDAVlT OF PUBLICATION (PART 2 OF THIS FORM) WITH ATTACHED COPY OF ADVERTISE- MENT MUST BE SUBMITTED WITH INVOICE. VENDOR NO. DATES ADVERTISEMENT REQU [DEPT. NO. A.O. NO. 5501 DATE O[ A.O. , ~n?st 17, 19 81 RED: .Aulc~/st 20, x.,,oJ_ THE MATERIAL BETWEEN THE DOUBLE LINES MUST BE PRINTED IN ITS ENTIRETY ON THE DATES SHOWN. BILLING ADDRESS: S .A H E AFFIDAVIT-OF-PUBLICATION UNITED STATES OF AMERICA STATE OF AT,ASKA t THIRD DIVISION. BEFORE ME, THE UNDERSIGNED, A NOTARY PUBLIC THIS DAY PERSONALLY APPEARED PAra T4Z~TC~z~ WHO, BEING FIRST DULY SWORN, ACCORDING TO LAW, SAYS THAT HE/SHE IS THE T_,EGAT-- CT-Ep.K OF PUBLISHED AT '". '..'ANCHORAGE IN SAID DIVISION ... AND STATE OF. ALASKA AND THAT THE ADVERTISEMENT, OF WHICH THE ANNEXED IS A TRUE COPY, WAS PUBLISHED IN SAID PUBLICATION ON THE . 20THDAY OF AUGUST .19 8.____1, AND THEREAFTER FOR, NONE CONSECUTIVE DAYS, THE LAST PUBLICATION APPEARING ON THE 20TH,DAY OF AUGUST 1~_~_1, AND THAT THE RATE CHARGED THEREON IS NOT IN EXCESS OF THE I:~_TE CHARGED PRIVATE INDIVIDUALS. 1TIME 6 1/4INCHS 26.40 L79181 SUBSCRIBED AND SWORN TO BEFORE ME THIS_ 25TH_DAY OF AUGUST 1981. NOTARY PUBLIC FOR S~-~-'I:'E OF ALASKA MY COMMISSION EXPIRES OCTOBER 20.,, 19R4 REMINDER- ATTACH INVOICES AND PROOF OF PUBLICATION. · ' 2.A. , izedi : · arry W.l~ugler, i; :' : CommiSsioner :: r , Alaska Oil and Gas ~ 'COnservatiOn Commis~i0n ~ O~08 5501 · PUb: Aug. 20, 1981 ? ' L. A. Darsow District Superintendent Amoco Production Company Post office Box 779 Anchorage, Alaska 99510 907-272-8471 July 7, 1981 File' LAD-754-447.1 Lonnie.C. Smith Commi s s i oner Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchor. age, Alaska 99501 Dear Sir' Request for Exception 'Surface Hole"DiVerter SyStem With r. egard to your recent request for comments involvi.ng the Surface Hole Diverter System Regulation (refer to your letter dated June 4, 1981, Regulation 20 AAC 25.035, Section 'B), Amoco is requesting an exception to the section of this r. egulation which states: '!...the low pressure, high capacity diverter system must provide at least the equivalent of a six-inch line with at least two lines venti.ng in different directions to insure safe downwind diversion .... " We request this exception for all four of our Cook Inlet platforms for all present and future drilli.ng operations. Our present system of diversion, as seen in Attachment I, vents gas in the derrick above the rig floor at the crown on platforms Anna 'and Dillon, and at the derr'ickman's position on Bruce and Baker. Historically, this system has been'rarely, yet successfully utilized to divert small amounts of coal gas while drilling at these shallow depths. This gas is low volume and 'tends to deplete quickly. This system has also been satisfactor:y.inspected by your personnel in'the recent past and was found to be~'~~/~'~"~'~ LAD-754-447.1 July 7', 1981 ?age 2 Furthermore, it is felt that diverter lines laid horizontally for diversion of flow in two directions on an offhsore platform is far more hazardous than our present system since there are many potential ignition sources at or near the deck level that could easily.ignite'vented gas in the event of a sudden wind change or similar occurrence. Also, our system is functionally identical to the system seen in the API Recommended Practices for Blowout Prevention Equipment Systems Bulletin (API RP 53), Page 4, Figure 2~A.1; the API recommendations bei.ng widely accepted as the standard of the industry. In closing, we will appreciate your consideration of our request for this exception and will be glad to field any questions or comments you may have'r.egardi.ng this regulation and our system. We also invite you or any of your associates to visit our.platforms and inspect the diverter systems at your convenience. Very truly yours, L. A. Darsow Di strict Superintendent Attachments TWM:cm ~AMOCO' SUBJECT Amoco 'Production CompaCt.*,' ENGINEERING CHART SHEET NO. FILE OF T ................... ~/ .... : ........ :' ,' ' ~ ' ~ ...... : ~ ' h ~ ~ ' · ...... ~ ........... ~ ....... , ~ + .... ~ ~ ..... : ; ' ' i /"" ,~ ~ : ' .... ~ ~ ' ............... ~ ..... T + ...... + .................... T ......... ~ ............ ~ ............ t .............. ~ ..................... * .......................... 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I .............................................................................................................. '~F~:"~'",'. :-,'~/~-~ ~,~,,~~ , , , ~,.~ ~ ................................ ~ . .......... .................................... ....................... I NOTICE OF PUBLIC HEARING STATE OF ALASKA Alaska Oil and Gas Conservation Commission Re: The application of Amoco Production Company, dated July 7, 1981, requesting an exception to section (-b) of Alaska Oil and Gas Conservation Commission's regulation 20 AAC 25.-035, concerning the surface hole diverter system. Notice is hereby given that Amoco Production Company has requested the Alaska Oil and Gas Conservation Commission to issue an order granting an exception to the surface hole diverter requirements stated in 20 AAC 25.035 (b),(1), for their four Cook Inlet platforms, Anna, Dillon, Bruce and Baker. Exception is requested specifically for that phrase which states: "...the low pressure, high capacity diverter system must provide at least the equivalent of a six-inch line with at least two lines venting in different directions to insure safe downwind diversion " Amoco Production Company proposes a minimum four inch diverter flowline to a degasser and vented by a minimum four inch single line to the crown or derrickman's position in the derrick abOve the rig floor. Their systems are similar to the ~system as shown in the API Recommended Practices for BLOWOUT PREVENTION EQUIPMENT SYSTEMS Bulletin (API RP 53), page 4, figure 2.A.1. and have been safely utilized for more than 10 years. Parties who may be ~aggrieved if an order is issued granting the referenced exception are allowed 10 days from the date of this publication in which to file a protest in writing, stating in detail the nature of the aggrievement, and a request for a hearing. The place of filing is the Alaska Oil and Gas Con- servation Commission, 3001 Porcupine Drive, Anchorage, Alaska 99501-3192. If such a protest is timely filed, a hearing on the matter will be held at the above address at 9:00 AM, on September 1, 1981 at which time protestants and others may be heard. If no such protest is timely filed the Commission will consider the issuance of the order without a hearing. ~Ha'rry W. KUgle/J' ~~r ' Commissioner Alaska Oil and Gas Conservation Commission