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Home My WebLink AboutBPXA - EIDERState of Alaska Alaska Oil & Gas Conservation Commission 1999 Facility Report Files File Names Gas Disposition ~.1 . ~ .. Facility i~~~~ ~ . ALASKA OIL AND GAS CONSERVATION CONII~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Operator Field(s) Endicott 10450 Month/Year of Dispositi BP Exploration (Alaska) Eider ... a.. +Disposition Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 425,773 3. Flared or vented less than 1 hour 18 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 433 5. Pilot and Purge 406 6. Used for lease operations Assist Fuel 970 61 670 7. Other TOTAL items 1-7 489,270 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: I hereby c ify at the toregoing is tnr~u`e!_ and correct to the, b!e_st of Signature Title/v•yl~ ~( Date ~_ Jan-99 *Indicate contribution of each pool to t Pool Name Code Percent 220150 Official Use Only Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC 25.235. Form 10-422 Rev. 4/95 2/8/99 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT January-99 Unplanned Events less than or equal to 1 hour 1~1~1lI~ p~ DATE ' TIME VOLUME: DESCRIPTION OF INCIDENT & C/4USE ACTION TAKEN TO ELIMINATECAUSE TOTAL 457 Not required for unplanned events which Not required for unplanned events which are less than or equal to 1 hour are less than or equal to 1 hour Unplanned Events greater than 1 hour DATE'' TIME .VOLUME DESCRIPTION OF INCIDENT & CAUSE .~ ACTION TAKEN'TO ELIMINATE'CAUS'E Plant upset; DCS failure, high separator level 1 /10/99 18:20-23,50 962 alarm. All SDI wells were shut-in 1 /11 /99 00:00-01:50 279 Booster compressor shut-down. Restarted compressor 1 / 12/99 22:20-23:50 219 Booster compressor shut-down. Restarted compressor Booster compressor shut-down. Problems 1/13/99 14:30-17:00 1,431 with NGLsystem. Restarted compressor 1 /15/99 01:50-04:50 300 Booster compressor down, cooler froze up. Restarted compressor Propane compressor system problems, NGL 1 /18/99 08:20-11:30 282 plant upset. Restarted propane compressor 1 /21 /99 12:00-13:50 249 Booster compressor shut-down. Restarted compressor 1 /27/99 13:00-16:15 744 Gas booster compressor fln fans freezing up. Restarted compressor 1 /28/99 00:00-02:30 525 Booster compressor shut-down. Restarted compressor 1 /29/99 13:10-23:10 2,449 Booster compressor Ashut-down. Restarted compressor MGC-A Shut-down. Lost power supply due 1 /30/99 20:30-23:50 2,518 to PLC error. ALL wells shut-in. 1 /31 /99 01:40-05:00 ~ 902 ~ Booster compressor down, plant upset. Restarted compressor TOTAL 10,860 Planned Events Less Than or Equal 1 Hour AND Not Exceeding 5000 Mcf DATE ,: TIME' VOLUME DESCRIPTION OF' INCIDENT & CAUSE ACTION TAKEN'TO ELIMINATE'CAUSE' None.... TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf -DATE TIME VOLUME ' bESCRIPTION OF'INCIDENT & CAUSE '' ACTION`TAKEN`TO ELIMINATE''CAUSE None TOTAL 0 Page 1 2/8/99 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT ' January-99 TOTAL ElDR SbN ENI~fCOT~' Volume flared less than 1 hour 457 18 0 439 Volume flared greater than 10,860 433 10 10,417 1 hour PIIot Purge 10,199 406 9 9,784 Assist Gas 24,361 970 22 23,369 TOTAL FLARED VOLUME 45,877 1,827 41 44,009 Page 2 ALASKA OIL AND GAS CONSERVATION CONII~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Endicott 10450 Month/Year of Disposition Endicott BP Exploration (Alaska) Eider Feb-99 Disposition Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 667,950 3. Flared or vented less than 1 hour 465 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 368 5. Pilot and Purge 673 6. Used for lease operations Assist Fuel 1,627 100 239 7. Other TOTAL items 1-7 771,322 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: I hereby certiYy ghat the Yorego>_ng is true and correct to the best oY Signature t~-~, (~ ~n,,,u~ Title /Ylr(o2. VfSt. Date --r•_ ~ _ _ _ _. _ --- *Indicate contribution of each pool to t Pool Name Code Percent 220150 Official Use Only Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 Asia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC 25.235. Form 10-422 Rev. 4/95 3/5/99 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT February-99 Page 1 Unplanned Events less than or equal to 1 hour DATE TIME VOLUME DESCRIPTION'OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 6,359 Not required for unplanned events which Not required for unplanned events which are less than or equal to 1 hour are less than or equal to 1 hour Unplanned Events greater than 1 hour DATE TIME VOLUME DESCRIPTION'AF INCIDENT'& CAUSE ACTION TAKEN TO ELIMINATE CAUSE Both booster compressors shut-down on high Closed louvers, circulated hot glycol until inter- 2/1 /99 0800-1630 733 temp alarms when the inter-coolers hydrated off coolers thawed out. Booster compressor shut-down unexpectedly Finally able to restart booster compressor, looking 2/10/99 1750-1920 303 to cause for shut-down. MI compressor commissioning upsets. Troubleshoot and tune logic controls on MI 2/17/99 2150-2300 472 compressor Temperature control valve stuck open to flare Reseated valve. 2/21 /99 2030-0000 967 header. MI compressor commissioning upsets. Reviewed MI compressor start-up procedures. 2/23/99 1510-0000 1,403 Troubleshoot and tune logic controls Start up of MGC-B affer shut-down caused Review start-up procedures. 2/24/99 0000-0110 236 unexpected process upset Process upset due to large volume slug off liquid Reviewed 3-phase instability of SDI flowline and 2/24/99 0930-1430 662 from SDI, plant shut-down. standard procedure for well operation at SDI MI compressor shut-down due to problems with Controls on 1st stage suction reprogrammed 2/28/99 2040-0000 254 1 stage suction. TOTAL .5,030 Planned Events Less Than or Equal 1 Hour AND Not Exceeding 5000 Mcf DATE' TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE None TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF 1NCfDENT'& CAUSE ACTION TAKEN TO ELIMINATE CAUSE None ~-~ TOTAL 0 3/5/99 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT February-99 Page 2 TOTAL EIDR 5DN ENDlCOTT Volume flared less than 1 he 6,359 465 9 5,885 Volume flared greater than 5,030 368 7 4,655 1 hour Pilot Purge 9,212 673 12 8,527 Assist Gas 22.268 1.627 30 20,611 TOTAL FLARED VOLUME 42,869 3,133 58 39,678 ALASKA OIL AND GAS CONSERVATION CONII~RISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility (Operator (Field(s) Endicott BP Exploration (Alaska) Eider DispositoriJ` Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 624,042 3. Flared or vented less than 1 hour 977 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 1,029 5. Pilot and Purge 980 6. Used for lease operations Assist Fuel 2,345 50,573 7. Other TOTAL items 1-7 679,946 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: t the foregoing is true and correct to Title (/yL(s~i ~~( Date Endicott 10450 ~MOnth/Year of Disposition Mar-99 *Indicate contribution of each pool to t Pool Name Code Percent 220150 Official Use Only-Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 Asia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC 25.235. st of Form 10-422 Rev. 4/95 4/6/99 _ _ BP EXPLORATION (ALASKA INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT March-99 Unplanned Events less than or equal to 1 hou r DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 10,168 Not required for unplanned events which Not rewired for u_„- ned events which n~lan __ _ are less than or equal to 1 hour are less than or equal to 1 hour Unplanned Events greater than 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO'ELIMINATE CAUSE MI compressor pressure control setpolnt was low AdJusted pressure control setpoint accordingly. _03/01 /99 _ 17,10-20;50 _ 1,375 and caused flare valve too en, Doostor compressor S/D for high temp caused by Booster compressor restarted. high first stage separator pressure, assist gas on 03/01 /99 22:50-00:00 88 for opaci com liance. Booster compressor S/D for high motor temp Booster compressor restarted. caused by high first stage separator pressure, 03/01 /99 11:50-13:20 81 assist as on for o aci com liance. Booster compressor S/D due to motor heating up Production cut to lower first stage separator 03/02/99 00:00-01:20 52 because of hi h first sta a separator ressure. ressure, booster com ressor restarted. MI compressor upsets. Attempts start up and Troubleshoot and tune control logic. Adequate tune control system, Assist gas on for opacity production cut, but flare response lags cuts. 03/03/99 19:20-20:40 196 compliance. MI compressor upsets. High differential pressure Troubleshoot operating procedures and tune 03/04/99 09:40-11:50 895 across seals caused shutdown. control to ic. MI compressor upsets. Attempts start up and Troubleshoot operating procedures and tune tune control system. Assist gas on for opacity control logic, 03/04/99 13:50-17:00 266 com liance. Shut down for hi h tem . in 2nd Assist gas on for opacity compliance following Troubleshoot operating procedures and tune 03/04/99 17:20-19;00 73 S/D of MI compressor earlier in da control to ic. MI compressor start up and shut-down for high Troubleshoot operating procedures and tune differential across seals. Assist gas on for opacity control logic. 03/05/99 15;00-16:00 180 compliance. Leaking valve in MI compressor skid. Assist gas Identified and fixed leaking valve. 03/08/99 13:20-15:50 254 increased for o aci compliance. MI compressor startup and shut-down for high Troubleshoot operating procedures and tune temp in 1st stage discharge. Assist gas on for control logic. 03/08/99 10;30-12:10 194 o acct com liance, Page 1 4/6/99 Page 2 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT March-99 Lost "A"-Main when "B"-Main was already down Shut-In all production. Diagnosed and repaired for upgrades: lost water pump and low pressure anti-surge valve. booster compressor, Root cause was anti-surge 03/09/99 02:50-05;00 4,004 valve faliure on 1st sta e com . NGL plant upset, slug of NGL not absorbed in Adjusted NGL plant. low oil level in stabilizer and sent to flare. Assist 03/11 /99 08;50-10:20 29 as on for opacity com liance. 03/12/99 10;00-13:20 2 Assist as on for opaci compliance, Plant stablilzed. Failed seal buffer pump caused water injection Repaired faulty seal buffer pump. Flare was pump S/D, triggering plant upset that resulted in CAUSED by sudden loss in production when booster compressor and NGL reboiler S/D. Assist water injection pump S/D. Booster compressor 03/14/99 08:00-09;00 107 as on for over 1 hour for o aci com liance, and NGL reboiler could not be restarted in less MI compressor start up and leaking temperature Ceased start-up attempts when problem was valve. Additional assist gas required to maintain identified. Closed manual block valve, No 03/18/99 09;30-00:00 1,163 o acit com liance. mitt ation ossible with roduction cut. MI compressor temperature control valve Closed block valve after compressor S/D when 03/ 19/99 00:00-02:50 73 leakin leak was identified. Booster compressor S/D due to liquid slug Into Cut production to mitigate slugging. Restart 03/21 /99 07:20-08:20 37 lant. Assist as on for o aci booster com ressor. MI compressor start up and shut-down. Assist Troubleshoot operating procedures and tune 03/23/99 14:10-15:10 31 as on for o aci compliance. control to ic. Attempted to start up MI compressor. Troubleshoot operating procedures and tune 03/24/99 09:50-12;00 81 control to Ic. Temperature control valve leak by in MI Valve identifed and re-seated. Troubleshoot 03/24/99 13:10-16:30 35 com ressor. o eratin rocedures and tune control to lc. MI compressor upsets Troubleshoot operating procedures and tune 03/25/99 11:30-15;50 487 control to ic. MI compressor start-up. Assist gas on for opacity Troubleshoot operating procedures and tune 03/26/99 13:10-15:50 45 compliance, control to ic. Plant upset. First stage separator flare valve Cut production to eliminate flaring. Diagnosed opened and first stage compressor PSV opened and repaired control problem. 03/31 /99 19:50-21:20 958 to flare due to antisur e valve control problem TOTAL 10,706 -' ~ D "' ~ ~ ~ < O < O ~_ ~_ y r „ ~ ~, -' O -+ ~ o c 1 c ~ c ~ Z v O D ~ ~ Z v O D ~ ~ ~ Q c cQ O O ~ ~ ' ~ m m ~D O ~ m m cD rn m Q O . o (D Q < a ~ ~ ~ fD < cD < cQ (D ~ ~ ~ .~+ ~ . m ° D m K ~ m ~ , , , ~ ~ ~ ~ c~ r ~, ~ Q ~ ~ a ~ ' ~ ~ C O f C a O cn N ~ j ~ ~ ~ c = o c c m ~. cn -P o 0 0 ~ ~ ' c ~ ~ v o J o j ~' R f ~ m ~ V ~ co CO m rn Oo ~ - ... 2 { ~Jt N ~ x O i , W ~~ 00 N ~ v ' O ~ ~ D I -- cn o co ~ ~ Q. Z N ~ ~ ~ ~, ~ C ~ Z O D N Di ° ~~ ~ x a ~ p ~ p ~ ~ ? m z ~, z ~ z'~ p x 0 o c. ~ ~ -" ~" ~ z ~ o n', n ~ ~ ~ 0 ', m D m m °o a~ ~ z'D ~ O z z o ~ 3 ~~ z !p 3~ n ~ ~ < D ~ ~ - ~w O G C ~ i . D ~`r N 7C (A t/! ~ ' Z D m m I m p Z,N Z n ~o Cn O ~ d p i i 6 2 Z i v : m m Z z 0 0 m m r ~ E n D m m D D i N ~ „~ m m Z v' O N Cp CO CD (~' ~ J1 C CO N O ~ A a Q O w ALASKA OIL AND GAS CONSERVATION CONII~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Endicott 10450 Month/Year of Disposition Endicott BP Exploration (Alaska) Eider Apr-99 Disposition Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 509,490 3. Flared or vented less than 1 hour 444 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 390 5. Pilot and Purge 759 6. Used for lease operations Assist Fuel 1,827 34,483 7. Other TOTAL items 1-7 547,393 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: I hereby c~tiYy~~that the Lorego>ng >s true and correct to the best of Signa Title~~}/,kY Date *Indicate contribution of each pool to t Pool Name Code Percent 220150 Official Use Only-Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC 25.235. Form 10-422 Rev. 4/95 5/6/99 Page 1 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT April-99 Unplanned Events less than or equal to 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 5,567 Not required for unplanned events which Not required for unplanned events which are less than or equal to 1 hour are less than or equal to 1 hour Unplanned Events greater than 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE "A"-Main shut down unexpectedly due to ground Source of ground fault was found and repaired. fault which tripped control system. "A"-main Not expected to happen again, depressurized relatively quickly (-40-50 minutes) but assist gas was needed to maintain 04/01 /99 10:20-15:30 554 compliance with EPA opacity regulations, Plant processes were in an upset condition Plant processes were stabilized and assist gas was following full field shut-down. Assist gas was used no longer needed. 04/01 /99 18:50-00:00 14 to maintain compliance with EPA opacity Start-up of MI compressor. Assist gas was used as Troubleshooting and tuning controls for necessary to avoid opacity as per EPA commissioning. Flaring necessary to pressurize 04/04/99 09:30-10:50 140 regulations. compressor for start-up. Assist gas was used duing plant upset condition to Plant operation was stablized and assist gas as 04/04/99 13;40-14:50 206 maintain compliance with EPA opacity turned off. MI compressor was started-up with necessary use Troubleshooting and tuning of controls for of assist gas to avoid opacity as per EPA commissioning. Flaring was necessary to 04/04/99 16:00-17:50 75 regulations. pressurize compressor for start-up. The MI compressor was initiating plant instability Troubleshooting and tuning controls for which called for use of assist gas to avoid opacity commissioning, Plant operation was stablized as per EPA regulations. MI compressor was also when MI compressor was depressurized and assist 04/04/99 18:10-20:10 199 shut-down later in this event. gas was turned off. Unstable plant processes necessitated use of Plant processes were stabilized and assist gas was assist gas to maintain compliance with EPA no longer needed, 04/05/99 14:10-17:10 33 opacity regulations. Plant in upset condition resulting from ramping up Plant operations stabilized and assist gas was no production affer TAPS proration. Upset condition longer needed. Booster compressor was re- caused booster compressor to shut down started. unexpectedly requiring assist gas for compliance 04/ 10/99 17:50-21;10 117 with EPA o acit re ulations. 5/6/99 Page 2 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT 04/ 15/99 15:00-17:20 04/15/99 119:20-21:00 MI compressor instability led to flaring and necessary use of assist gas to avoid opacity, as 131 per EPA re ulations. Gas liff instability initiated instability in gas production rate and resulted in compressors bogging down. 860 04/17/99 09;10-10:30 2,302 04/17/99 13:30-15:10 42 04/20/99 19:20-00:00 250 04/26/99 19:50-20:50 143 TOTAL 5,066 "B"-Main shut down unexpectedly due to high pressure trip. The high pressure resulted from plant instablity initiated by the "A"-Main shut down for upgrades on the previous evening. The plant was unstable when bringing wells back on production following complete shut-down. Upset condition required use of assist gas to avoid opacity as per EPA regulations. MI compressor shut-down led to gas release from depressurization, but the majority of the flare event duration was due to extended use of assist gas as per EPA opacity requirements. MI compressor shut-down led to some gas relea: from depressurization, but the duration of the flare event was mostly determined by extended use of assist aas as per EPA opacity reauirement Troubleshooting and tuning controls for commissioning. High GOR production was cut, but not quickly enough to avoid the flare, The majority of the flare volume was flared over a span of less than 30 minutes, but depressurization of the high pressure flare header lengthened duration of the All wells were shut-in automatically, "B"-Main was restarted as soon as possible and the wells were brought back on slowly to promote plant stability, Plant operations stabilized and assist gas was no longer needed. Troubleshooting and tuning controls for commissioning. The faulty control function was identified and corrected. Assist gas was used to mitigate black flare smoke resulting from MI compressor shutdown, Troubleshooting and tuning controls for commissioning. Planned Events Less Th an or Equal 1 Hour AN D Not Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE MI compressor was shut-down voluntarily, but still Troubleshooting and tuning of controls for depressured via flaring. commissioning, Flaring was necessary to safely de 04/03/99 22:10-22:10 1 13 pressurize compressor when shuttin down. "B"-Main planned start-up following upgrades Flaring was necessary to pressurize the 04/10/99 00:30-00:30 101 compression train for start-up. TOTAL 214 5/6/99 Page 3 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT April-99 Planned Events Exceed ing 1 Hour OR Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE None TOTAL 0 TOTAL EIDR Volume flared less than 1 h 5,781 444 SDN 5 ENDICOTT ~ 5,332 Volume flared greater than 5,066 390 4 4,672 1 hour Pilot Purge 9,870 759 9 9,102 Assist Gas 23.754 1.827 21 21,906 TOTAL FLARE D VOLUME 44,471 3,420 39 41,012 ALASKA OIL AND GAS CONSERVATION CONII~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Endicott 10450 Month/Year of Disposition Endicott BP Exploration (Alaska? Eider May-99 ,....£ ~~' "1~r ~:.. p.? ~< ~~.~ .8~ T~ Disposition Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 498,930 3. Flared or vented less than 1 hour 204 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 93 5. Pilot and Purge 560 6. Used for lease operations Assist Fuel 1,302 30 452 7. Other TOTAL items 1-7 531,541 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: *Indicate contribution of each pool to t Pool Name Co a Percent 220150 Official. Use Only-Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date ~~ ~t !7 ~; :~ ~n .~ ~~ K ':J °:3 :~ Gd r.~~`` I hereby certify th t the foregoing is true and correct to the best of Signature Title rric,R. T1F!(!( Date Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC Form 10-422 Rev. 4/95 6/4/99 Page 1 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT May-99 Unplanned Events less than or equal to 1 hour DATE .TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 3,726 Not required for unplanned events which Not required for unplanned events which are less than or equal to 1 hour are less than or equal to 1 hour Unplanned Events greater than 1 hour DATE TIME VOLUME. ' DESCRIPTION OF INCIDENT &' CAUSE ACTION TAKEN TO ELIMINATE CAUSE MI compressor tripped to recycle several times Troubleshooting and tuning controls for before finally shutting down. commissioning. Plant operation was stablized when MI compressor was depressurized and assist 05/02/99 04:50-06:40 665 gas was turned off. Plant upset condition caused booster compressor Assist gas was returned to normal levels when shut-down, which necessitated increased use of plant operation was stabilized and opacity was assist gas to maintain compliance with opacity acceptable, Booster compressors were regulations, Note: booster compressors needed overhauled and operations were adjusted to help overhaul to operate at higher gas throughput (C them keep up with upgraded compressors, 05/15/99 20:00-21:00 93 to D upgrde) Assist gas was increased a very small ammount to Flare reporting computer was changed to not mitigate flare opacity, but overall purge, pilot, report assist gas to flare unless the PP&A is above and assist gas remained below limit of 11 bl the 11 bl mscf/d limit, 05/19/99 17:30-00:00 2 mscf/d, including this Ion duration release. Increased assist gas use was necessary to Assist gas was returned to normal levels when mitigate opacity of flare exhaust, as per EPA plant operation was stabilized and opacity was regulation. Opacity condition caused by plant acceptable. Booster compressors were upset, overhauled and operations were adjusted to help 05/21 /99 11:00-13:30 50 them keep up with up raded compressors. Increased assist gas use was necessary to Assist gas was returned to normal levels when mitigate opacity of flare exhaust, as per EPA plant operation was stabilized and opacity was regulation. Opacity condition caused by plant acceptable. Booster compressors were upset. overhauled and operations were adjusted to help 05/22/99 14:10-16:40 7 them kee u with u raded com ressors. ,~ I ~ : ~.. ~ ~. ~ ~< M~,V~4 6/4/99 Page 2 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT May-99 Increased assist gas use was necessary to Assist gas was returned to normal levels when mitigate opacity of flare exhaust, as per EPA plant operation was stabilized and opacity was regulation. Opacity condition caused by plant acceptable. Booster compressors were upset, overhauled and operations were adjusted to help 05/22/99 17:00-18:30 26 them keep up with upgraded compressors. Increased assist gas use was necessary to Assist gas was returned to normal levels when mitigate opacity of flare exhaust, as per EPA plant operation was stabilized and opacity was regulation. Opacity condition caused by plant acceptable. Booster compressors were upset. overhauled and operations were adjusted to help 05/22/99 19:20-22:20 14 them keep up with upgraded compressors. Increased assist gas use was necessary to Assist gas was returned to normal levels when mitigate opacity of flare exhaust, as per EPA plant operation was stabilized and opacity was regulation. Opacity condition caused by plant acceptable. Booster compressors were upset. overhauled and operations were adjusted to help 05/23/99 1 1:20-13:00 28 them keep up with upgraded compressors, Increased assist gas use was necessary to Assist gas was returned to normal levels when mitigate opacity of flare exhaust, as per EPA plant operation was stabilized and opacity was regulation. Opacity condition caused by plant acceptable. Booster compressors were upset, overhauled and operations were adjusted to help 05/24/99 13:10-14:10 32 them keep up with upgraded compressors. Plant upset condition and booster compressor Assist gas was returned to normal levels when overhaul necessitated increased use of assist gas plant operation was stabilized and opacity was 05/25/99 18:00-20:30 1 10 to avoid opacity as per EPA regulations. acceptable, Plant upset condition and booster compressor Assist gas was returned to normal levels when overhaul necessitated increased use of assist gas plant operation was stabilized and opacity was to avoid opacity as per EPA regulations. acceptable. Booster compressors were overhauled and operations were adjusted to help 05/25/99 22:40-00:00 86 them keep up with upgraded compressors. Increased assist gas use was necessary to Assist gas was returned to normal levels when mitigate opacity of flare exhaust, as per EPA plant operation was stabilized and opacity was 05/26/99 17:40-20:00 93 re ulation. O aci condition caused b lant acce table. 6/4/99 Page 3 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT May-99 5/29/99 4:40-06:00 94 Production slug to the first stage main production separator caused the booster compressors work harder and shut down because of high temperature, Compressors could not be started for over 1 hour (lockout). Assist gas was used for opacity compliance. Booster compressors were re-started when lock- out period was over, Assist gas was returned to normal levels. TOTAL 1,700 Planned Events Less Than or Equal 1 Hour AND Not Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE None TOTAL 0 TOTAL EIDR SDN ENDICOTT Volume flared less than 1 ho 3,726 204 3 3,519 Volume flared greater than 1,700 93 2 1,605 1 hour Pilot Purge 10,199 560 9 9,630 Assist Gas 23.731 1.302 22 22,407 TOTAL FLARE D VOLUME 39,356 2,159 36 37,161 ALASKA OIL AND GAS CONSERVATION CONII~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Endicott 10450 Month/Year of Disposition Endicott BP Exploration (Alaska) Eider Jun-99 Disposition ~ Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 449,640 3. Flared or vented less than 1 hour 62 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 97 5. Pilot and Purge 401 6. Used for lease operations Assist Fuel 955 24 679 7. Other TOTAL items 1-7 475,834 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: I hereby ce tify t at the foregoing is true and correct to the best of Signature Title /!~,((_, '~/~)( Date ~ ~ ~''", ~ `max ~' ~ w' _ Form 10-422 ~,TM, -: ., Rev. 4/95 °' ' `=~~' *Indicate contribution of each pool to t Pool Name Code percent 220150 Official Use Only-Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC ;~7cd~"+~° (iii ~7~ti {.sd~'i`.`~. Lrf~sg , AnchOr~~; 7/6/99 Page 1 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT June-99 'nplanned Events less t han or equal to 1 hour DATE TIME VOLUME TOTAL 1,520 nplanned Events greater than 1 hour BATE TIME VOLUME 06/10/99 11:30-12:50 88 06/17/99 07:10-08:10 38 06/18/99 17:00-18:00 45 06/20/99 10:20-12:30 121 06/20/99 12:50-16:30 481 06/20/99 18:40-19:50 98 06/21/99 07:50-08:50 10 06/21/99 09:10-19:10 315 DESCRIPTION OF INCI T & CAUSE ed events which ACTION TAKEN TO Not required for u are less than or e TE CAUSE d events which Not required for unpl are less than or equ~ to 1 hour DESCRIPTION OF INCIDENT & CAUSE Adjusting export rate for TAPS proration initiated slugging and plant instability which caused a booster compressor to trip off-line, thereby increasing need for opacity mitigation with additional assist gas. Plant upsets due to slugging production from SDI resulted in a booster compressor shut down, thereby increasing need for opacity mitigation with additional The MI compressor shut down on a recycle trip and safely depressurized to flare. This temporarily increased the need for assist gas to avoid opacity. to 1 hour ACTION TAKEN TO ELIMINATE CAUSE The booster compressor was re-started as soon as possible to eliminate the need for and use of addtional assist gas. The booster compressor was re-started as soon as possible to eliminate the need for and use of addtional assist gas. Once the compressor and turbine was safely depressured, the assist gas was turned off. This event occurred during the commissioning phase of the MI Pressurization of MI compressor for start-up and tuning MI compressor was started up and tuned. The to set surge curves resulted in a significant need for booster compressor was then also re-started. Once additional assist gas to avoid flare smoke opacity (EPA operational stability returned, additional assist gas regulation). Simultaneous plant upset caused booster was no longer needed. Production cut during this compressor to o down also. event was not pertinent to minimizing flared volume. Pressurization of MI compressor for start-up and tuning MI compressor was started up and tuned. The to set surge curves resulted in a significant need for booster compressor was then also re-started. Once additional assist gas to avoid flare smoke opacity (EPA operational stability returned, additional assist gas regulation). Simultaneous plant upset caused booster was no longer needed. Production cut during this compressor to go down also. event was not pertinent to minimizing flared volume. Plant upsets due to slugging production from SDI The booster compressor was re-started as soon as resulted in a booster compressor shut down, thereby possible to eliminate the need for and use of increasin need for opacity miti ation with additional addtional assist gas. Pressurization of MI compressor for start-up resulted in a Once the MI compressor was started, the additional significant need for additional assist gas to avoid flare assist gas was no longer needed and was eliminated. emission opacity (EPA regulation). The volume flared during this event was almost Once the knock out vessel was blown down, the completely addtional assist gas that was necessary for additional assist gas was not necessary and turned opacity mitigation while blowing liquids down from 1st off, The MI compressor operation was adjusted to sta a knock out vessel for MI com ressor. minimize li uid formation in this vessel. 7/6/99 Page 2 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT June-99 06/22/99 11:00-13:50 109 Performance testing of MI compressor increased the need for additional assist gas to mitigate flare emission opacity. When the performance testing was complete, the additional assist gas was no longer needed and was returned to normal levels. 6/25/99 4:10-05:40 ,058 MI compressor shut down and depressurized due to "O"-ring failure in tree cap of MI injection well 2-22. Additional assist gas was necessary to avoid flare smoke opacity as per EPA regulation. The "O"-ring on well 2-22 was replaced with a new "O"-ring made of a material better suited to MI injection service. This change was applied to each well scheduled for MI injection service. Production cut not necessary due to proration. 6/25/99 6:10-07:20 1 MI compressor shut down and depressurized due to "O"-ring failure in tree cap of MI injection well 2-22. Additional assist gas was necessary to avoid flare smoke opacity as per EPA regulation. The "O"-ring in well 2-22 was replaced with a new "O"- ring made of a material better suited to MI injection service. This change was applied to each well scheduled for MI injection service. Production cut not necessary due to proration. TOTAL 2,394 Planned Events Less Than or Equal 1 Hour AN D Not Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE None TOTAL 0 TOTAL EIDR SDN ENDICOTT Volume flared less than 1 h 1,520 62 1 1,457 Volume flared greater than 2,394 97 2 2,295 1 hour Pilot Purge 9,870 401 8 9,461 Assist Gas 23.543 955 19 22,569 TOTAL FLARED VOLUME 37,327 1,515 30 35,782 ALASKA OIL AND GAS CONSERVATION CONIl~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Endicott 10450 Month/Year of Disposition Endicott BP Exploration (Alaska) Eider Jul-99 Disposition Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 491,817 3. Flared or vented less than 1 hour 259 4. Flared or vented greater than 1 hour (Supplemental report re9uired--See 20 AAC 25.235) 219 5. Pilot and Purge 440 6. Used for lease operations Assist Fuel 1,054 27 036 7. Other TOTAL items 1-7 520,825 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: I hereby certify th t the foregoing is true and correct to Signature Title iyvV`~ ~ Date the best of ~ 1 *Indicate contribution of each pool to t Pool Name Code percent 220150 Official Use Only-Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC C x sn c.~ b ~, ~ ~ n ~ o C7 ;~ O~i C'S a ux" t~ ~~ R~ Er CO p~~.~ Form 10-422 Rev. 4/95 8/5/1999 Page 1 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 _~__. __.._~~ __.__ GAS FLARING INCIDENT REPORT - ENDICOTT _ July-99 Unplanned Events less than or equal to 1 hour DATE TIME''' VOLUME DESCRIPTION'OF INCIDENT& CAUSE' ACTION TAKEN TO'ELIMINATE'-CAUSE TOTAL 5,996 Not required for unplanned events which Not required for unplanned events which are less than or equal to 1 hour are less than or equal to 1 hour Unplanned Events greater than 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENY& CAUSE ACTION TAKEN TO ELIMINATE CAUSE Combination of high ambient temperatures and new The operating conditions were adjusted to mitigate the high operating conditions with MI compressor were resulting in temperature problems with the booster compressor until the 07/05/99 20:20-23:20 524 severe booster compressor problems. Assist gas was ambient temperature cooled, Assist gas use was eliminated applied as necessary to avoid o aci of flare emissions. as soon as possible. Simultaneous shut down of the MI compressor and The MI compressor was safely depressured via flaring, the booster compressor necessitated safe depressurization via booster compressor was re-started and assist gas use was 07/10/99 05:20-07:10 715 florin and use of assist as to avoid opacity, terminated when o acity cleared. The MI compressor tripped to recycle, initiating plant The MI compressor and injection weliset were adjusted until instability which caused the booster compressor to shut- the recycle valve and controls could be tuned 07/13/99 00:00-01:20 193 down, Assist as was required to avoid o aci , The MI compressor shut-down and depresurrized via the The leak was repaired and the MI compressor was returned flare. Assist gas was used to avoid opacity as per EPA to service. Assist gas use was terminated as soon as 07/14/99 05:10-06:10 199 re ulation. Cause was an h draulic leak in the ropane permissible. During start-up of MI compressor and NGL system, the Booster compressor was re-started when plant operations 07/14/99 22:40-00:00 133 booster compressor shut-down. Assist gas use was were stabiliized. Assist gas was used only as long as necessa to avoid o aci necessar to avoid o acity. The booster compressor shut-down during plant instability The booster compressor was restarted as soon as possible resulting from shutting-down the propane compressor to while plant operation was stabilizing. Assist gas use was fix a leak. Assist gas was necessary to maintain eliminated as soon as the flare emissions satisfied the 07/15/99 02:40-04:20 39 compliance with EPA o acity re ulation. o aci requirements. Due to the control system, the MI compressor was shut- Upon safely depressurizing the MI compressor, the control down and depressurized via flaring. Assist gas was used system was reset and the compressor was restarted. Assist 07/15/99 08:40-09:40 140 t o burn the rich MI gas without causing flare opacity, as gas was used no longer than necessary to maintain with er EPA re ulation. opaciy re ulation. MI compressor was re-started offer shutting down while Affer several attempts the new inter-island MI injection commissioning new MI injection header to SDI. Assist gas h eader was purged and warmed up. The MI compressor 07/15/99 1 0:30-12:10 122 was used to maintain compliance with opacity regulation operated more smoothly once the line was in service. B urin re- ressurization and start of the com ressor. P lant instability from propane compressor repairs and MI T he plant was stabilized and the booster compressor was re- 07/15/99 1 4:00-15:10 36 c ompressor start-ups caused booster compressor to shut- s tarted. Assist gas was only used as long as necessary to d own. Assist as was used as needed to avoid o aci a void m ste 8/5/1999 Page 2 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 - --- QAS FLARINQ INCIDENT REPORT - ENDICOTT __ July-99 When MI gas was circulated through the tie line to the The MI compressor was slowly taken out of recycle as the MI SDI during comissioning of the line, the MI compressor tie-line to SDI was warmed up and commissioned. Assist gas tripped to recycle and thereby necessitated flaring of rich use was terminated as soon as allowed. by EPA opacity 07/15/99 16:00-17:10 45 MI as. Assist as was necessa for opaci com liance. re ulations. Assist gas was added to avoid opacity as per EPA Opacity was remedied in the first 50 minutes in which time regulations for 50 minutes, and then Jeff on inadvertantly the process was adjusted to eliminate cause of opacity, for the rest of the day. Operations staff were trained to turn set reminder alarm to 07/16/99 12:00-00:00 570 . turn assist as off offer 50 minutes. The MI compressor shut-down and depresurrized via the The MI compressor was safely depressurized before trouble- flare. Assist gas was used to avoid opacity as per EPA shooting to find and remedy control system that caused the 07/17/99 19:20-21:00 370 regulation. shut-down Assist gas was needed to manage opacity when booster MI compressor operation was adjusted to increase booster compressor was frequently shutting down due to new compressor stability. Assist gas was used only when needed 07/19/99 17:50-18:50 54 operatin conditions im osed by MI compressor. to miti ate o acity, as per EPA re ulation. Assist gas was needed to manage opacity when booster MI compressor operation was adjusted to increase booster compressor was frequently shutting down due to new compressor stability. Assist gas was used only when needed 07/19/99 21:50-00:00 70 operatin conditions Imposed by MI com ressor. to miti ate opaci , as per EPA re ulation. Booster compressor shut down when starved of gas MI compressor injection rate was lessened to reduce the during MI compressor performance testing. Assist gas was starvation of booster compressor, to facilitate it's restart, needed to avoid opacity. Assist gas was used as necessary to avoid opacity, but was 07/20/99 09:00-11:30 111 terminated as soon as permissible, Well work on SDI initiated instability in the plant which Booster compressor was re-started when possible until well caused booster compressor to shut down and assist gas work, and associated instability, was past. Assist gas was 07/30/99 11:20-12:30 94 use to be required for opaci re ulation compliance. used only when needed to avoid opacity. Unexpected shut-down of water injection pump required As soon as plant stability was restored, the booster rapid shut-in of wells, which initiated temporary plant compressor was restarted and the assist gas use was instability and caused the booster compressor to shut- terminated. 07/31 /99 11:50-13:20 391 down. Assist gas was used as necessary to avoid opacity. Unexpected shut-down of water injection pump required As soon as plant stability was restored, the booster rapid shut-in of wells, which initiated temporary plant compressor was restarted and the assist gas use was instability and caused the booster compressor to shut- terminated. 07/31/99 13:40-15:00 386 down, Assist as was used as necessary to avoid opaci TOTAL 4,192 Planned Events Less Than or Equal 1 Hour AN D Not Exceedin 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION?AKEN TO ELIMINATE CAUSE TOTAL 0 8/5/1999 Page 3 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT July-99 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE The booster compressors were shut-down for cleaning in The boosters were returned to service as soon as possible an effort to make them more reliable at high ambient after washing and the assist gas use was discontinued when temperatures and operating condition with MI no longer needed. 07/10/99 13:00-15;10 885 compressor. Assist as use was the dominant source and TOTAL 885 .TOTAL EIDR SDN ENDICOTT Volume flared less than 1 h 5,996 259 7 5,730 Volume flared greater than 5,077 219 6 4,852 1 hour Pilot Purge 10,199 440 11 9,748 Assist Gas 24.430 1.054 27 23,349 TOTAL FLARED VOLUME 45,702 1,972 51 43,679 ALASKA OIL AND GAS CONSERVATION CONII~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Endicott 10450 Month/Year of Disposition Endicott BP Exploration (Alaska) Eider Aug-99 Disposition ~ Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 338,712 3. Flared or vented less than 1 hour 105 4. Flared or vented greater than 1 hour (supplemental report required--See 20 AAC 25.235) 207 5. Pilot and Purge 319 6. Used for lease operations Assist Fuel 763 18 930 7. Other TOTAL items 1-7 359,036 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: I hereby c ify t at the regoing is true and correct to the best of Signature . Title Date/~,2T/Y1C *Indicate contribution of each pool to t Pool Name Code Percent 220150 Official Use Only-Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC Form 10-422 Rev. 4/95 9/3/1999 Page 1 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT DATE TIME. TOTAL nplanned Events g~ DATE TIME 08/01/99 00:00-02:40 08/01/99 16:00-18:20 08/03/99 OT:50-03:00 08/04/99 19:00-21:40 08/04/99 22:00-00:00 08/04/99 05:50-12:00 08/05/99 00:00-01:20 08/05/99 10:30-14:20 than or 159 to 1 hour DESCRIPTION OF INCIDENT & CAUSE Not required for unplanned events which are less than or equal to 1 hour rater than 1 hour VOLUME 573 233 31 226 21 68 485 DESCRIPTION OF INCIDENT.& CAUSE The booster compressor shut down due to high ambient temperatures and required several attempts to restart. Assist gas was used to maintain opacity compliance. High ambient temperatures caused the booster compressor to shut down. Assist gas use was required to maintain opacity A small amount of assist gas was required to mitigate a small amount of black flare emissions, to maintain compliance with opacity regulation. The assist gas valve failed to completely seat when commanded to close. MI compressor recycle trips, shut downs, and re-starts caused some flaring for safe depressurization of the compressor, which necessitated use of assist gas to avoid flare emission opacity, as The Mi compressor tripped to recycle, shut down, and was re- started. Flaring was necessary to safely depressurize the compressor during the shutdown. Assist gas use was required for A small plant upset created black flare smoke which necessitated use of assist gas to maintain compliance with opacity regulation. Upon eliminating assist gas use, the valve did not fully seal and a very small amount of assist gas continued to The MI compressor shut down and depressured safely via flaring. Assist gas use was necessary to maintain compliance with A booster compressor shut down due to ambient temperature swing and plant instability. Assist gas was used to mitigate flare opacity as per regulation. Both booster compressors shut down and required major repairs before they could be restarted, Flared gas included what is usually handled by the booster compressor and the associated 08/07/99 X08:30-20:40 as ACTION TAKEN TO ELIMINATE CA Not required for unplanned events which are less than or equal to 1 hour ACTION TAKEN TO ELIMINATE CAUSE The booster compressor was restarted and assist gas use was eliminated as soon as possible. Approximately 40% of the flared volume was assist gas required for opacity compliance.' The booster compressor was restarted and assist gas use was eliminated as soon as possible. The majority of the assist gas usage was for the cause of avoiding flare emission opacity. When the small flow of gas was discovered, the valve was researted to eliminate undesired use of assist gas. The MI compressor control logic was diagnosed and tuned to promote more stable performance. Assist gas usage was eliminated as soon as opacity compliance was attained. The MI compressor was restarted and assist gas use was eliminated as soon as permitted by opacity regulation. Cutting gas production does not effect the amount of gas flared during MI compressor startup. The assist gas use was eliminated when it was discovered that it had been flaring unintentionally. It was immediately shut-in. MI compressor control logic was diagnosed to facilitate more stable performance. Assist gas usage was eliminated as soon as opacity compliance was restored. Production was cut to attain plant stability and the assist gas use was eliminated as soon as permitted by the opacity regulation. The booster compressor that was repaired first was re-started and the assist gas use was eliminated as soon as opacity was in compliance. Cutting back on production does not decrease the volume of gas flared when the booster 9/3/1999 Page 2 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT August-99 The booster compressor shut down due to high ambient The booster compressor was re-started and the assist gas use temperatures and required several attempts to restart. Assist gas was eliminated as soon as permissible by the opacity was used to maintain opacity compliance. regulation. Production cuts are not useful in minimizing flaring 08/09/99 08:30-09:40 171 from booster compressor downtime. MI compressor tripped to recycle, causing partial depressurization The MI compressor operation was stabilized, the cause of and necessitating usage of assist gas to maintain opacity black flare emissions was eliminated, and assist gas usage 08/11 /99 14:40-16:20 92 compliance. was eliminated as soon as permitted by opacity regulation. A load shed on the main power generators caused the When electircal power was restored, the booster compressor electrically driven booster compressors to shut down. Assist gas was restarted and assist gas use was eliminated soon after. was necessary to achieve clean combustion and maintain Approximately 40% of the flared volume was assist gas 08/11/99 08:50-10:30 251 compliance with opacity regulation. required for opacity compliance. A plant upset required assist gas to be applied to the flare in The assist gas use was eliminated when it was discovered that order to maintain compliance with opacity regulation. When it had been leff on longer than needed to maintain opacity the root cause of the black smoke was eliminated, the assist gas compliance. 08/12/99 05:20-12:00 540 was not turned off for the duration of the flare event. The MI compressor tripped to recycle several times and The MI compressor was safely shut-down and depressurized, eventually shut down, depressurizing safely via flaring. Each plant stability was restored, and assist gas usage was recycle trip caused instability that necessitated assist gas use to eliminated as soon as permitted by opacity regulation. 08/15/99 13:40-i 7:10 170 maintain opacity com fiance, The MI compressor was purged, repressurized, and re-started as The MI compressor was restarted and assist gas use was per normal cold startup procedure. The purge and eliminated as soon as permitted by opacity regulation. repressurization stages created black smoke necessitated use of 08/16/99 09:00-10:10 214 assist gas to maintain compliance with opacity re ulation. During a day of plant instability, a small amount of assist gas was When plant operation was stabilized, the assist gas use was used to mitigate small instances of flare emission opacity that eliminated. 08/16/99 14:20-16:30 6 would occur at erratic, intermittant times. Instability in the MI/NGL systems caused opacity of flare emissions Assist gas use was eliminated immediately following and necessitated use of assist gas to restore and maintain permission by opacity regulation. 08/16/99 21:00-22:10 33 compliance with the opacity regulation. A plant upset required assist gas to be applied to the flare in As soon as opacity compliance permitted, the assist gas 08/17/99 11:10-12:10 38 order to maintain compliance with opacity re ulation. usage was eliminated. Assist gas use was required to maintain compliance with opacity When the control system accepted the command to regulation during a very short booster compressor shut down, but decrease use of assist gas, it was eliminated. The fault in the could not be turned off immediately when permitted; the control control system has since been identified and remedied. 08/20/99 06:50-10:40 358 system rejected the command to eliminate use of assist gas. The MI compressor tripped to recycle, initiating NGL system The MI compressor was safely and partially depressured. instability that necessitated assist gas usage to keep flare Once the need ceased to use assist gas to maintain opacity emissions in compliance with opacity regulation. compliance, however, human error led to a 1.5 hours delay 08/24/99 13:00-16:00 113 in the elimination of assist as usa e. 9/3/1999 Page 3 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT August-99 8/27/99 7:00-13:10 13 The MI compressor tripped to recycle and eventually shut down, safely depressuring to flare and causing plant instability which resulted in black smoke emission from the flare. Assist gas was required to maintain compliance with opacity regulation. The MI comprssor was re-started and the NGL system was stabilized. Assist gas use was eliminated as soon as permitted via opacity regulation. TOTAL 6,533 Planned Events Less Than or Equal 1 Hour A ND Not Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE... ACTION TAKEN TO ELIMINATE CAUSE Flaring resultant from required emissions testing on MI compressor Emissions testing was completed and stable operation 08/29/99 17:00-17:30 180 turbine; Assist gas use was not necessary, resumed for the MI compressor. TOTAL 180 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE Deaerator (DA) gas was diverted from booster compressor to When sufficient data was collected, the DA gas was re- flare instead to experiment with operating conditions to minimize routed back to the booster compressor. 08/10/99 08:00-10:00 87 overall flaring associated with booster compressor downtime. TOTAL 87 TOTAL EIDR SDN ENDICOTT' Volume flared less than 1 3,339 105 3 3,231 Volume flared greater tha 6,620 207 6 6,407 1 hour Pilot Purge 10,199 319 10 9,870 Assist Gas 24.423 ~ 23 23,637 TOTAL FLARED VOLUME 44,581 1,394 42 43,145 ALASKA OIL AND GAS CONSERVATION CONII~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Endicott 10450 Month/Year of Disposition Endicott BP Exploration (Alaska) Eider Sep-99 Disposition I Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 474,030 3. Flared or vented less than 1 hour 202 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 29 5. Pilot and Purge 434 6. Used for lease operations Assist Fuel 1,035 28 166 7. Other TOTAL items 1-7 503,896 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: I hereby certify t at the foregoing is true and correct to Signature Title /71.02 "~~u Date the best of ~O *Indicate contribution of each pool to t Pool Name 220150 Code Percent Official Use Only-Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC Form 10-422 Rev. 4/95 10/6/1999 Page 1 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT September-99 Unplanned Events less than or equal to 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 4,380 Not required for unplanned events which Not required for unplanned events which are less than or equal to 1 hour are less than or equal to 1 hour Unplanned Events greater than 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE A sharp ambient temperature swing resulted in decreased gas Production was cut to match decreased gas handling handling capacity which necessitated flaring of process gas and capacity. The booster compressor was restarted and assist assist gas to keep visible emissions within EPA regulation. gas use was eliminated as soon as possible. 09/05/99 16:20-17:20 198 Additional gas flared when the booster compressor S/D. 09/11 /99 03:10-07:00 73 Severe plant upset while ramping down production for TAPS slowdown required use of assist gas to maintain compliance with EPA opacity regulation. Once prorated production levels were achieved, plant operation smoothed out and assist gas use was eliminated as soon as it was no longer needed for opacity compliance 9/20/99 5:20-16:40 9 Severe slugging through SDI inter island tie-line caused booster compressors to bump flare; assist gas was needed to ensure the richer gas from the boosters was combusted in compliance with EPA Opacity regulation. Production was cut to mitigate slugging and eliminate flaring from the booster compressors. The assist gas use was eliminated as soon as possible, given compliance with Opactiy regulation. 09/21 /99 06:30-07:40 45 B booster compressor shut down when slugging from SDI initiated instability in the plant. Assist gas was needed to mitigate flare opacity as per EPA regulation. A booster compressor was restarted and assist gas use was eliminated as soon as possible. 09/21 /99 20:30-21:30 210 The MI compressor was started up, requiring purge and pressurization which ncessitated flaring. Assist gas was used as necessary to maintain compliance with EPA opacity regulations. The MI compressor was started once it was purged and pressurized. Assist gas was turned off as soon as possible. 09/29/99 16:50-18:00 63 Start-up of propane compressor caused instability and the boostercompressor shut down; both operations required used of assist gas to mainain opacity compliance. Troubleshooting of the Propane compressor once it was re- started facilitated smooth operation. Booster was re-started and assist gas use was eliminated as soon as possible. TOTAL 658 Planned Events Less Than or Equal 1 Hour A ND Not Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF WCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE Planned "A"-Main shut down for TAPS slowdown. Compressed Production was cut for slowdown. "A"-Main was re-started 09/11 /99 01:40-01:40 104 gas safely depressured via flaring. followin completion of maintence work. 09/28/99 09:50-09:50 121 "Planned" shutdown MI compressor for calibration of instrumentation for performance diagnoses. Some assist gas use was necessary to maintain opacity compliance. Flared volume minimized, data gathered from the calibrated instruments to be used to improve performance of MI compressor and thereby decrease future flaring. TOTAL 225 10/6/1999 Page 2 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT September-99 Planned Events Exceeding 1 Hour OR Exceed ing 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL. 0 TOTAL EIDR SDN ENDICOTT Volume flared less than 1 4,605 202 3 4,400 Volume flared greater tha 658 29 0 629 1 hour Pilot Purge 9,870 434 6 9,430 Assist Gas 23.556 1.035 14 22,507 TOTAL FLARED VOLUME 38,689 1,700 23 36,966 ~~~~ Y ~~/ ALASKA OIL AND GAS CONSERVATION CONII~lISSION NC~V ~ ~ ~9g FACILITY REPORT OF PRODUCED GAS DISPOSITION ~~~; . Facility ~•{;~~~ ~i~t~~~-t5perator Field(s) Endicott 10450 Month/Year of Disposition ~ i~~k~-(fit & ~~ Endicott - BP Exploration (Alaska) Eider Oct-99 Disposition Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 0 3. Flared or vented less than 1 hour 0 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 0 5. Pilot and Purge 0 6. Used for lease operations Assist Fuel 0 0 7. Other TOTAL items 1-7 0 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: I hereby c ify hat the foregoing is true and correct to the best of Signature Title ~J(L 'fylryC Date ( ~ *Indicate contribution of each pool to t Pool Name Code Percent 220150 Official Use Only-Flaring Authorization 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC Form 10-422 Rev. 4/95 11/3/1999 Page 1 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL N0, 202.4 _____ GAS FLARING INCIDENT REPORT - E.~~DICOTT October-99 Unplanned Events less than or equal to 1 hour DATE ' TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 2,252 Not required for unplanned events which Not required for unplanned events which are less than or equal to 1 hour are less than or equal to 1 hour Unplanned Events greater than 1 hour DATE TIME VOLUME ' DESCRIPTION OF INCIDENT &'CAUSE 'ACTION TAKEN TO ELIMINATE CAUSE The booster compressor shut-down. Use of assist gas was The booster compressor was restarted. Use of assist gas was 10/03/99 12:00-15:00 258 minimized. minimized. The booster compressor shut-down and assist gas was used to The error was identified and the assist gas use was eliminated, maintain opacity compliance. Assist gas was inadvertantly left on 10/06/99 11:00-18:30 65 fora proximately 6 hours. Upsets in the NGL system resulted in the MI compressor shutting The MI compressor was re-started once the NGL system was down and needing to be restarted. Assist gas use was necessary lined out. Assist gas use was eliminated as soon as opacity 10/09/99 16:50-19;10 150 for opacity compliance. compliance would allow. Logging MI injection well 2-22 caused MI compressor upsets which The logging operation was completed and MGC"B" was re- led to assist gas flaring for opacity compliance. Logging also started. Assist gas use was eliminated as soon as opacity was 10/11/99 10:30-14:30 1,029 caused MGC-"B" to shut down at 14:00 and depressure via flaring, clear. The MI compressor shut down while commissioning the MI injection The MI compressor safely depressured via flaring until the next header to SDI, Assist gas was used as needed to mitigate opacity attempt to re-comission the SDI MI header. Assist gas use 10/26/99 11:00-12:30 189 re ulation. was eliminated as soon as possible. The MI compressor shut down while commissioning the MI injection The MI compressor safely depressured via flaring until the next header to SDI. Assist gas was used as needed to mitigate opacity attempt to re-comission the SDI MI header. Assist gas use 10/26/99 13:00-14:00 67 re ulation. was eliminated as soon as possible. The MI compressor shut down while commissioning the MI injection The MI compressor safely depressured via flaring until the next header to SDI. Assist gas was used as needed to mitigate opacity attempt to re-comission the SDI MI header. Assist gas use 10/27/99 20:50-21:50 98 re ulation. was eliminated as soon as possible. The MI compressor shut down while commissioning the MI injection The MI compressor safely depressured via flaring until the next header to SDI. Assist gas was used as needed to mitigate opacity attempt to re-comission the SDI MI header. Assist gas use 10/28/99 12:40-13:40 148 re ulation. was eliminated as soon as possible. "A" Booster S/D because hydrates formed in the intercooler. Assist The louvre control that affects booster compressor intercooler gas was used as necessary to maintain compliance with opacity temperature was identified to be broken and was fixed. The regulations. boaster compressor was returned to service and assist gas use 10/31 /99 15:00-19:00 558 was eliminated. TOTAL 2,562 11/3/1999 Page 2 BP EXPLORATION ALASKA) INC. ADMINISTRATIVE APPROVAL N0.202.4 GAS FLARING INCIDENT REPORT - ENDICOTT October-99 Planned Events Less Than or Equal 1 Hour A ND Not Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO'ELIMINATE CAUSE MI compressor shut-down during performance testing. Assist gas Performance test data was collected and MI compressor was was used as necessary to maintain compliance with opacity re-started. Assist gas use was eliminated as soon as opacity 10/O1 /99 14:30-15:00 129 re ulations. re ulation was satisified. 10/02/99 08:20-08:40 209 MI compressor shut-down during performance testing. Assist gas was used as necessary to maintain compliance with opacity re ulations. Performance test data was collected and MI compressor was re-started. Assist gas use was eliminated as soon as opacity re ulation was satisified. 10/02/99 21:10-21:50 160 MI compressor shut-down during performance testing. Assist gas was used as necessary to maintain compliance with opacity re ulations. Performance test data was collected and MI compressor was re-started. Assist gas use was eliminated as soon as opacity re ulation was satisified. 10/05/99 17:10-17:20 160 MI Compressor was shut-down intentionally for operator training. MI compressor was started up again. Assist gas use was eliminated when opaci compliance was re-established. 10/05/99 19:40-20:00 115 MI compressor was re-started for operator training. Operators were trained in start-up procedure of MI compressor in hopes that future flaring would be reduced. TOTAL 773 Planned Events Exceeding 1 Hour OR Exceed ing 5000 Mcf DATE TIME VOLUME DESCRIPTION OF tNCiDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 0 TOTAL EIDR SDN ENDICOTT Volume flared less than 1 3,025 0 1 3,024 Volume flared greater tha 2,562 0 1 2,561 1 hr Pilot Purge 10,199 0 6 10,193 Assist Gas 24.151 0 13 24,138 TOTAL FLARED VOLUME 39,937 0 21 39,916 ALASKA OIL AND GAS CONSERVATION CONII~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Endicott 10450 Month/Year of Disposition Endicott BP Exploration (Alaska) Eider Nov-99 Disposition Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 0 3. Flared or vented less than 1 hour 0 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 0 5. Pilot and Purge 0 6. Used for lease operations Assist Fuel 0 0 7. Other TOTAL items 1-7 0 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. Transferred to: I hereby c tify hat the foregoing is true and correct to the best of Signature .~. TitlelM,<~2,r-y~c Date *Indicate contribution of each pool to t Pool Name Code Percent 220150 Official Use Only-Flaring Authorizatioi; 1. Safety MCF 2. Lease MCF 3. Conserv. Purposes MCF Commissioner Date Note: All volumes must be corrected to pressure of 14.65 Asia and to a temperature of 60 degrees F. Report due by the 20th of the month folowing the month of disposition. Authority 20 AAC ~. .9- <, ~- 49 t.9 cj-- ~. , Form 10-422 Rev. 4/95 12/6/1999 Page 1 BP EXPLORATION (ALASKA INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT November-99 Unplanned Events less than or equal to 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO'ELIMINATE[CAUSE TOTAL 6,233 ~ Not required for unplanned events which Not required for unplanned events which are less than or equal to 1 hour are less than or equal to 1 hour Unplanned Events rester than 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE The booster compressor shut down and could not be restarted. Assist gas The booster compressor was restarted. Assist gas use was 11 /Ol /99 13:50-15:50 226 was necessary to ensure compliance with flare emissions opacity eliminated as soon as permitted by opacity regulation. The booster compressor shut down because hydrates had formed in the Once the intercooler was thawed out, the booster compressor intercooler, thereby inhibiting the cooling of the compressors. Assist gas was restarted. Assist gas was eliminated as imediately upon 11 /02/99 19:10-21:20 291 necessary for opacity compliance. meeting opacity compliance. An attempt to restart the MI compressor was unsuccessful. Flare volume The MI compressor operating parameters were adjusted due to purging, pressurization, depressurization, of MI compressor. Assist slightly for a greater chance of success on the next re-start gas was used for the duration of this event to mitigate flare emission attempt. Assist gas use was eliminated as soon as permitted 11 /03/99 13:50-15;10 369 opacity. by flare emission opacity. A successful attempt at re-starting the MI compressor. Flare gas necessary As soon as the MI compressor was successfully started, the to purge and pressurize compressor during start-up sequence. Assist gas flaring was no longer necessary. Assist gas use was eliminated 11 /03/99 15:50-16:50 367 use necessary for flare emission opacity compliance. as soon as permitted by opacity regulations. An attempt to restart the MI compressor was unsuccessful. Flare volume The MI compressor operating parameters were adjusted due to purging, pressurization, depressurization, of MI compressor. Assist slightly for a greater chance of success on the next re-start gas was used for the duration of this event to mitigate flare emission attempt, Assist gas use was eliminated as soon as permitted 11 /04/99 09:40-10:50 116 opacity. by flare emission opacity. Difficulties encountered when restarting the Propane compressor resulted The propane compressor was restarted, the assist gas use was 11 /11 /99 11:50-13:40 14 in assist gas use to facilitate compliance with opacity regulation. no longer needed and was immediately eliminated. Multiple attempts were made to restart the MI compressor. Booster The flared volumes of gas that were necessary during the start- compressor shut down during the attempts and did not immediately re- up and shut-down were eliminated when the MI compressor start, Significant assist gas was used to mitigate flare opacity. was successfully started. The booster compressor was also 11 /11 /99 14:30-21:30 723 successfully restarted and assist gas use was eliminated. MI compressor start-up attempt and booster compressor downtime. Gas The booster compressor was restarted. The MI compressor was flared during MI compressor start-up procedure and as assist gas to operating parameters were adjusted slightly for a greater avoid flare opacity. chance of success on the next re-start attempt. Assist gas use 11 /14/99 09:40-12:30 103 was eliminated as soon as permitted by flare emission opacity. MI compressor start-up attempt and booster compressor downtime, Gas As soon as the MI compressor was successfully started, the was flared during MI compressor start-up procedure and as assist gas to flaring was no longer necessary, Assist gas use was eliminated 11 /14/99 15:10-16:20 81 avoid flare opacity. as soon as permitted by opacity regulations. The MI compressor tripped to recycle because of control system. Assist Refinement of the control system for the MI compressor is gas was necessary for flare opacity compliance. ongoing. Steps were taken to mitigate re-occurrence of the reason for tripping to recycle. Assist gas was used only as long 11 /15/99 12:00-13:00 101 as necessar to miti ate flare o aci 12/6/1999 Page 2 BP EXPLORATION (ALASKA) INC. ADMINISTRATIVE APPROVAL NO. 202.4 GAS FLARING INCIDENT REPORT - ENDICOTT __ November-99 11 /22/99 13:50-16:00 323 A successful attempt at re-starting the MI compressor, Flare gas necessary to purge and pressurize compressor during start-up sequence. Assist gas use necessary for flare emission opacity compliance. As soon as the MI compressor was successfully started, the flaring was no longer necessary. Assist gas use was eliminated as soon as permitted by opacity regulations. 1 /28/99 1:50-1.5:00 63 Repairing an anti-surge valve on the first stage of the main gas compressor led to shut-down of NGL system and MI compressor while causing significant upsets to the rest of the plant. Assist gas use was necessary to maintain opacity compliance. When the anti-surge valve was repaired, operational stability was restored and the systems were re-started. Assist gas use was eliminated as soon as permited by flare emissions regulations. 11 /29/99 14:10-16:40 199 Instability in the NGL system necessitated use of assist gas for opacity compliance, Production was cut to re-establish stability in the NGL system. Assist gas use was eliminated as soon as flare emission opacity allowed. TOTAL 3,176 Planned Events Less Than or E ual 1 Hour A ND Not Exceedin 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE TOTAL 0 Planned Events Exceedin 1 Hour OR Exceedin 5000 Mcf DATE "TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE The A-main gas compressor copus (gas-fed pneumatic start-up motor which relieves to LP flare header) was run in order to investigate a suspected leak on the MGC turbine during a planned shutdown of A- 11/13/99 05:05-09;20 173 main. ACTION TAKEN TO ELIMINATE CAUSE The use of the copus was discontinued immediately after it had served its usefulness. TOTAL 173 TOTAL EIDR SDN ENDICOTT Volume flared less than 1 6,233 0 5 6,228 Volume flared greater tha 3,349 0 2 3,347 1 hr Pilot Purge 9,870 0 8 9,862 Assist Gas 23.218 0 18 23,200 TOTAL FLARE D VOLUME 42,670 0 33 42,637 C~~ R P .°~ {~ir~~ ~1~ a ~iC i~ ~ Endicott ALASKA OIL AND GAS CONSERVATION CONIl~lISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Operator Field(s) Endicott 10450 Month/Year of Disposit BP Exploration (Alaska) Eider Dec-99 Disposition Volume MCF* 1. Sold Fuel NGL 0 0 2. Reinjected 0 3. Flared or vented less than 1 hour 0 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 aAC 25.235) 0 5. Pilot and Purge 0 6. Used for lease operations Assist Fuel 0 0 7. Other TOTAL items 1-7 0 8. NGL gas equivalent produced 0 9. Purchased gas 10. Transferred from: 11. 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