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BPXA - GC #3
GAS DISPOSITION FILES Field ~ C... bPX R 2000 ,, ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) WESTERN OPERA"PING AREA-PBU Month/Year of Disposition Jan-00 Disposition *Indicate contribution of each pool to total. 1. Sold 0 Pool Name Code Percent 2. Reinjected 0 PRUDHOE 640150 100 3. Flared or vented less than 1 hour 37,907 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 2,119 5. Pilot and Purge 14, 391 6. Used for lease operations 541,071 7. Other 0 ................................................................. Offtc~al Use bnly--Flaring:Autliorization.~ 1 hi. TOTAL items 1 - 7 595,488 1. Safety MCF 8. NGL gas equivalent produced 0 2. Lease Use MCF 9. Purchased gas 0 3. Conserv. Purposes MCF 10. Transferred from: 0 Commissioner Date 11. Transferred to: CCP 26,296,469 Note: All volumes must be corrected to Remarks: pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is true and correct to the best of my knowledge. ignatare: ~ Title: MANAGER month following the month of dispositio Authority 20 AAC 25.235. ~~ ~. , ° ':: ~,~ ~ c ~~y~~ -~ Form 10-422 (Revised 4/95) 01-00 FORM 10-422.x1s/FORM 10-422 ~,a;sue o i;, ~e~J VS:. J v;.;i4r"M~y.~ ~1i~1Gi ~:~i; ~' BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC-3 GAS FLARING INCIDENT REPORT JANUARY, 2000 Unplanned Events less than or equal to 1 hour ::`DATE TIME VOlrUtllll~ . .:::DESCRIPTION OF INCIDENT& C~ll)SE _. ,4CTIQN TAIKEN TO:EL.I11A1Ni4TE Ci4USE 1/8/00 0900-1000 30,000 Not required for unplanned events which Not required for unplanned events which 1/26/00 1038-1128 7,674 are less than or equal to 1 hour are less than or equal to 1 hour 1 /29/00 0048-0125 128 1 /29/00 1619-1650 105 TOTAL 37,907 Unplanned Events greater than 1 hour DATE TIME VOLUME DESCRIPTION:Qt~.INCIDENT & C+4lt~E ' 'ACTION TAKEN TQ ELIMINATE CAtISE 1/28/00 1428-2230 249 See Attachments See Attachments 1/29/00 0833-1310 852 See Attachments See Attachments 1/31/00 1301-1559 799 See Attachments See Attachments 1/31/00 2130-2300 219 See Attachments See Attachments TOTAL 2,119 Planned Events Less Than or Equal 1 Hour AND Not Exceeding 5000 Mcf DA~`~ `' ::.: TIME TOLU1VIE DE;~CRIPTION C1F. INCIDENT ~C CAt1SE ACTI.OIV TAK~N:TQELIMINATE GAIISE See Attachments See Attachments TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf bATE 'rIME::::::. VOLUME DES+~.RIP'1'I~N4PINCIDENT:&C44ltSE /gCTIOIJ TAKEIJ T+fJ ELI11111.NATE:CAUSE See Attachments See Attachments TOTAL 0 ... ... ................ ................ rQ~~al. Unplanned Events < 1 Hour 37,907 ~"' ~ "` ""' ?'~ ~` 8a ~ ~ ~ n I nne Even 1 H r U pa d ts> ou 2 119 , Planned Events < 1 hour & not 0 ~' ~ "'~' z i._ ~~ ~ ~ ~v ~~~ exceeding 5,000 MCF Planned Events > 1 hour and 0 ~~^P~? n~ "• "'`~' `fz''"'`'"'1~?~ exceeding 5,000 MCF ~~~~~~'~^ Pilot Purge .14,391. TOTAL FLARED VOLUME 54,417 Page 1 REPORT NO: 00-0017 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 28 Jan 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 14:28 22:30 8 Hrs. 2Mins ^ ^ ^ 249 MSCF TOTAL VOLUME 249 MSCF First Determination of Cause: 1. K5500 wet gas compressor s/d due to High Lube Oil Temperature Indication (False reading). The Gathering Center 3/K-5500 Wet Gas Compressor Flaring procedure was followed. Action Taken to Stop Flaring: 1. No assist gas was used and tank sweep gas was not in service when the event began. At 1530hrs water production rates were to facilitate one skim tank operation. At 1930hrs water production rates were reduced to 50MBWPD by water sort and both skim tanks were shut down. At 2130hrs All HP production was shut in. K-5500 was restarted 2215hrs and production rates were restored to normal over the next several hours. Monday, January 31, 2000 Page 1 of 1 REPORT NO: OO-OO1 H FACILITY: GC-3 SYSTEM 1. Flare/Relief Valve 2. Flare/Relief Valve 3. Flare/Relief Valve BPXA FLARE REPORT PRUDHOE BAY DATE: 29 Jan 00 TIME OF FLARING Start Stop Duration 00:48 01:25 0 Hrs. 37Mins 08:33 13:10 4Hrs. 37Mins 16:19 16:50 0 Hrs. 31 Mins Black Intermittent Smoke Planned VOLUME ^ ^ ^ 128 MSCF ^ ^ ^ 852 MSCF ^ ^ ^ 105 MSCF TOTAL VOLUME 1,085 MSCF First Determination of Cause: 1. K-5500 S/D High tube oil temp. (False indication). The Gathering Center 3/K-5500 Wet Gas Compressor Flaring procedure was utilized.. 2. K-5500 S/D High tube oil temp. (False indication.) The Gathering Center 3/K-5500 Wet Gas Compressor Flaring procedure was utilized. 3. K-5500 S/D High tube oil temp. (False indication). The Gathering Center 3/K-5500 Wet Gas Compressor Flaring procedure was utilized.. Action Taken to Stop Flaring: 1. There was no black smoke so assist gas was not necessary. Trouble shooting is continuing to fix problem without a shutdown of K-5500. GC-3 operators restarted compressor at 0115 and flaring stopped by 0125. 2. There was no black smoke thus assist gas was not necessary. After one hour (1400) high water cut wells were choked back to reduce flaring as well as to slow water level level increases in one skim tank operation. Water rates were then low enough to send all remaining water production to Flow Station #3 and both skim tanks were shut down. Because of the continuing problems, the local GC-3 K-5500 shut down was taken out of service. A local indication is being monitored by on site operators. GC-3 operators restarted compressor at approximately 1300 and flaring stopped as soon as the compressor was loaded. Monday, January 31, 2000 Page 1 of 2 REPORT NO: OO-0018 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 29 Jan 00 3~d. There was no black smoke so assist gas was not necessary. Trouble shooting is continuing to fix problem without a shutdown of K-5500. GC-3 operators restarted the compressor at approximately 1645 and flaring stopped by 1650. If the compressor shuts down again all HP production to GC 3 will be reduced to minimum while repairs are made (to minimize flaring). Monday, January 31, 2000 Page 2 of 2 REPORT NO: 00-0023 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 31 Jan 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke 1. Flare/Relief Valve 13:01 15:59 2Hrs. 58Mins ^ ^ 2. Flare/Relief Valve 21:30 23:00 1 Hrs. 30Mins ^ ^ Planned TOTAL VOLUME VOLUME 799 MSCF 219 MSCF 1,018 MSCF First Determination of Cause: 1. Extended flaring event occurred while awaiting GC operator/maintenance evaluation. K5500 s/d and procedure for Wet Gas compressor. implemented. H2O cuts were made after one hour and one skim tk operation in service. (30k bbls of H2O.) 2. K-5500 S/D at 2130hrs Due to suction pressure transmitter malfunction. Action Taken to Stop Flaring: 1. K5500 was restarted at 1559 hours. 2. Notified POTL,OE,OPS manager, GC-3 boardman, GC-3 OTL. A joint decision was made to: Cut out HP prodution and reduce water rates to the point that FS-3 would handle water production from GC- 3, equal to 50M barrels. HP wells: B-8,2,7,3,36,12,30. C-17,22,25,31,9,30,28,39,20 were reduced to minimum choke. Water related wells: B-25,35. A-23,43,26,13,34,37,12,24,18,28,2,14. X- 8,17,4,10,25,16,7,12,2. At 2300hrs. compressor was restarted, but above actions remain in effect. Tuesday, February 01, 2000 Page 1 of 1 REPORT NO: oo-oo~ s BPXA FLARE REPORT PRUC~HOE BAY FACILITY: GC-1 DATE: 2g Jan Of} TIME OF FLARINq Bfack SYSTEM Start Stop buratlon Intermittent Smoke planned VOLUME 1. Flare/Relief Valve 08:32 08:53 0 Hrs 21 Mins 248 M8CF 2. Flare/Relief Valve 08:30 20:30 11 Hrs 0 M(ns $,406 M3Cr° TOTAL VOLUME 8,654 M8CF First Ueterminatlon of Cause: 1. High gas transit line pressure caused by CGF compressor problems due to 1883 tandem vibration problems. 2. Sk-1t3 Ip compressor shut down because of a problem associated with power surge and a faulty 24v power supply card. Action Taken to Stop Flaring: 1. BPX reduced productlan rates and shut-in t3 wells equaling 100 mmscfd. ARCQ reduced production rates and shut-in 17 wells equaling 380 mmscfd. Wells were shut-in or choked back starting at 0836 hours. ~". BPX flared the full amount of gas flowing to the compressors (prior to SD) at a rate of 30 mmscfd from 0930 hrs to 0945 hrs to allow GC personnel sufficient time to troubleshoot the source of the problem, and to attempt to restart the compressors. Between 0946 and 1015 hrs, BPX reduced production rates and shut-in 17 wells equaling 600 mmscfd, reducing the volume of flared gas to 19 mmscfd, the minimum amount of gas required to prevent black smoke flaring. Production cuts were maintained until compressors returned to normal operation. .}. =o _ . ~~:~i,~ t,i ~;;,; ~~~~~. t~ornr~isson ~jcr:~a~a , Sunday, January 30, 2000 ~0'd Z00'nN OZ~6 00~0~ Ndl: I~Sb-6S9-Z06~QI f~age 1 of 1 SNOIld~13d0 REPORT NO: OOWO017' BPXA FL,~#RE REPORT PRUDHOE BAV' f~ACILITY: GC-3 DATE: 28 Jan 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1, Ffare/Relief Valve 14:28 22:30 8 Mrs 2 Mlns 249 MSCF TOTAL VOLUME 249 M8CF Flrat 13eterminatlon of Cause: 1. K5500 wet gas compressor s/d due to High l.ube Oil Temperature Indication (False reading). The Gathering Center 3/K-5500 Wet ©as Compressor Flaring procedure was followed. Action Taken to Stop Flaring: 1. No assist gas was used and tank sweep gas was not in service when the event began. At 1530hrs water production rates were to facilitate one skim tank operation. At 1930hrs water production rates were reduced to 50MBWI~D by water sort and both skim tanks were shut down. At 2130hrs All NP production was shut In, K-5500 was restarted 2215hrs and production rates were restored td normal aver the next several hours. {DIVED f,~.ldita oii & Gas Cony. Commission rte"orate Sunday, January 30, 2000 ~0'd T00"oN OZ~6 00~0~ Nd1^ Z~Sb-6S9-L06~QI Page i of 1 SNOIld~13d0 REPORT NO: OO-OO1$ BPXA FLARE REPORT PRUDHO~ BAY FACIL,I7Y: GC-3 SYSTEM 1. Flare/Relief Valve 2. Flare/Relief Valve 3. Flare/Relief Valve DATE: 29 Jan 00 ~'IM~ OF FLARING Start Stop Duration 00:48 01:25 0 Hrs 37 Mlns 08:33 13:10 4 Mrs 37 Mlns 1 B:19 16:50 0 Nrs 31 Mlns Black Intermittent Smoke plannod VOLUME 128 MSCF 852 MSCF 105 MSCF TOTAL VQl,UMf= 1,085 MBCF Flrat Dbtgrminatton of Cause: 1. K-5500 S/D Wigh tube oil temp. (False indication). The Gathering Center 3/K-5500 Wet Gas Compressor Flaring procedure was utilized,. 2. K-5500 9/D High tube oil temp. (False indication.) The Gathering Center 3/K-5500 Wet Gas Compressor Flaring procedure was utilized. 3. K-6500 SID High tube oil temp. (False indication). The Gathering Center 3/K-5500 Wet Gas Compressor Flaring procedure was utilized.. Action Takao to Stop Flaring: i. There was no black smoke so assist gas was not necessary. Trouble shooting fs continuing to fix problem without a shutdown 4f K-5500. GC-3 operators restarted compressor at 0115 and flaring stopped by Oi25. 2. There was no black smoke thus assist gas was not necessary. After one hour (1400) high water cut wells were choked back to reduce flaring as well as to slow water level level increases In one skim tank operation. Water rates were then law enough to send all -emaining water production to Flow Stat(on #3 and bath skim tanks were shut down. Because of the continuing problems, the local GC-3 K-5500 shut down was taken out of service. A local indication Is being monitored by on site operators. GC-3 operators restarted compressor at approximately 1300 and flaring stopped as soon as the compressor was loaded. 3. There was no black smoke so assist gas was not necessary, Trouble shooting is continuing to fix problem without a shutdown of K-5500. GC-3 operators restarted the compressor at approximately 1645 and flaNng stopped by 1650. If the compressor shuts down again all Hf' production to GC 3 will be reduced to minimum while repairs are made (to minimise flaring). r, ,.1, ~r:., k, t '~~ :, ~. `} a i_'J'.J~~" ,,.",.!,ti Uii ~ l'c1s Colts. Commission Anci;orage. b0'd T00'oN iZ~6 00~0~ NdL T~Sb-6S9-Z06~QI SNOIld~I~dO REPORT NQ: O0~0023 FACILITY: f3C-3 SYSTEM BPXA FLA~~ R~P~RT PRUD~O~ BAY DATte: 31 Jan 00 TIME OF Fl-AFi1NG Black Start Stop Duration Intermittent Smoke 1, Flare/Relief Valve 13:01 15:59 2 Hrs 58 Mlns 2. f=lare/Relief Valve 21:30 23:00 1 Nrs 30 Mlns 789 MSCF 219 MSCF TOTAL VOLUME 1,018 MSCF Flart Determination of Cauae: 1, Wet Gas Compressor K-5500 Shut Down with an Instrumentation malfunction. Gathering Center 3 K-5500lWet Gas Compressor Flaring Procedure was implemented. 2. K-5500 S/D at 2i 30hrs Due to suction pressure transmitter malfunction. Gathering Center 3 K-5500/Wet Gas Compressor Flaring Procedure was implemented, Aetlon Taken to Stop Flaring: 1. No assist gas was required. Tank sweep gas was already out of service. Water rates were reduced during first hour so that single skim tank operation was Implemented, reducing water production by 30 MBWD. K5500 was restarted at 1559 hours. Full production was re-established over the next two hours. 2. Natifled Production Optimization Team Leader (K. Eager), ©ptimixation Engineer (S. Kiorpes), operations Manager (M. Werner), GC-3 boardmen (M. Elson), GC-3 C1Tl. (Art Mills), and PCC operator {A. Warnke). Given the recent unreliable operation of K-5500, a joint decision was made to; (1) Cut all GC-3 out HP production and (2) Reduce GC-3 water rates to the point that FS-3 would handle atl water production from GC-3 (water cut equal to 50M barrels). HF' wells: 5-8,2,7,3,36,12,30. C-17,22,25,31,9,30,28,39,20 were reduced to minimum Choke. Water related wells: f3-25,35. A-23,43,26,13,34,37,12,24,18,28,2,1x. X-8,i7,4,10,25,16,7,12,2were reduced to minimum flow. Na assist gas was required. Tank sweep gas was already out of service. At ambient temperature of -t8F full shutdown of GC-3 was not deemed to be rludent. Controls technicians were woken and called out to troubleshoot and repair the control system at 2200 (Chester PeNigran and Dann Schwing). Compressor was restarted at 2300 ,but above rate cuts remain in effect through AM of 2-1-2000 until a forward plan can be developed for K-5500. REC~IVEQ ~~ ~ eon Tuesday, February 01, 2000 ~iaska Oil ~ Gas Cnns. ComgtisSlo~t Anchorage Planned VOLUME Page 1 of 1 z0'd Z00'uN 9S:6 OO,IO 83~ I~Sb-6S9-Z06:QI SNOIldd3d0 ,va ALASKA OIL AND GAS CONSERVATION COMMISSION ' FACILITY REPORT' OF PRODUCED GAS DISPOSITION Facility GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) WESTERN OPERATING A2EA-PBU Month/Year of Disposition Feb-00 Disposition *Indicate contribution of each pool to total. 1. Sold 0 Pool Name Code Percent 2. Reinjected 0 PRUDHOE 640150 100 3. Flared or vented less than 1 hour 3,371 4. Flared or vented greater than. 1 hour (Supplemental report required--See 20 AAC 25.235) 11,157 5. Pilot and Purge 19,446 6. Used for lease operations 527,074 7. Other 0 Official Use.Onl}~-=Elaring:Authorization:~ 1 hr TOTAL items 1 - 7 561,048 1. Safety MCF 8. NGL gas equivalent produced 0 2. Lease Use MCF 9. Purchased gas ~'r~ ~ ~ ~ ~ ~:~~~ 0 3. Conserv. Purposes MCF 10. Transferred from: ~ ~ ~ h L~i~~ 0 Commissioner Date 11. Transferred to: CCP ,;std ~~~ ~ `''~~ ~' Rl~` ~sa:ltltl 25,927,716 ~1Ch1~l~~~ Note: All volumes must be corrected to Remarks: - ` ~` pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is hue and correct to the best of my knowledge. Signature: \~~ - Title: MANAGER month following the month of disposition. Authority 20 AAC 25.235. Form 10-422 (Revised 4/95) `'--`°~ 02-00 FORM 10-422.x1s/FORM 10-422 w BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC-3 GAS FLARING INCIDENT REPORT FEBRUARY, 2000 Page 1 Unplanned Events less than or equal to 1 hour ~ 'EIA'I`E TIMID V04.€~IVI~; . ' D~S~RIPTIQN OE INGIUNT &;CallSE AC`i`IflN;tAK~N TO ~ll~llVtINA~`E CAIJS~ .. ........ 2/i 1/00 1614-1651 3,186 Not required for unplanned events which Not required for unplanned events which 2/12/00 1320-1322 19 are less than or equal to 1 hour are less than or equal to 1 hour 2/12/00 2207-2218 94 2/18/00 1448-1449 72 TOTAL 3,371 Unplanned Events greater than 1 hour ~ i)Atl~ I :. '~.IME V~I.UM~ [~~SCRIRTI~N O~ IAICIIp>~N`f..& ~~,US~ . ACTt4lV T~kK~N 7Q.~t.IMI~At1G CAU'.S~ 2/16/00 0943-1258 622 See Attachments See Attachments 2/19/00 1755-1917 10,535 See Attachments See Attachments TOTAL 11,157 Planned Events Less Than or Equal 1 Hour AND Not Exceeding 5000 Mcf ~ D/~TIE .: TIME 1l4LUME DESC)~IRT1~N OF INCIfDENT & CAUSE ACT'LON TAI(EN:"~~3 ELIMIf~t~1TE ~AIJ~SE See Attachments See Attachments TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf ,...:. C3A1 E:::`::. .. :TIME ::::::::::::::::. vE~II:UM~ ..::..:. DESCRIPTIt7N :Q~INCIIDFNT & CAUSE !;,,, "AG7tpN TAI!EEN TQ EI~[MII~A7E CAUSE See Attachments See Attachments ............. . . TOTAL 0 .. TOT~AI e ~~ ~ Unplanned Events < 1 Hour 3,371 Unplanned Events> 1 Hour 11,157 e~~~R LQ ~~'~~ Planned Events < 1 hour & not 0 F+1~5'~at~i3&~~~O~s~~.ur~~~iit~~ exceeding 5,000 MCF Planned Events > 1 hour and 0 exceeding 5,000 MCF Pilot Purge 1.4,44(2 TOTAL FLARED VOLUME 33,974 REPORT NO: 00-0039 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 16 Feb 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 09:43 12:58 3Hrs. 15Mins ^ ^ ^ 622 MSCF TOTAL VOLUME 622 MSCF First Determination of Cause: 1. K5500 wetgas compressor shutdown due to purge gas malfunction on control system. Action Taken to Stop Flaring: 1. Turbine technicians were called out to assist in restarting the compressor. Per procedure, flaring occurred at a rate of 5 mmscfd for the first hour to allow a restart of the compressor. At 1046 hrs, per procedure, GC operations isolated one of two oil skim tanks, and reduced flaring to 4.4 mmscfd. The compressor was restarted at 1258 hrs. ~~~ 2~^.r~~t 2 ~ L ~~5~~ ~!i ~ ~~~ ti~~t"~. ~Ve t1135~ ~~tCht3P~~ Thursday, February 17, 2000 Page 1 of 1 REPORT NO: 00-0041 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 19 Feb 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 17:55 19:17 1 Hrs. 22Mins ^ ^ ^ 10,535 MSCF TOTAL VOLUME 10,535 MSCF First Determination of Cause: 1. Asset Area TEG regeneration system shut down because of control/instrumentation failure associated with Master Gas S/D. Action Taken to Stop Flaring: 1. BPX reduced production rates and shut-in 14 wells equaling 300 mmscfd. Wells were shut-in or choked back starting at17:50 hours. ~~~ P~!AR ~ 0 ~~ ~~ ~~~~ Qil & ~' ~n~. ~cmmi33lOt~ pndlor~g~ Monday, February 21, 2000 Page 1 of 1 ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) WESTERN OPERATING AREA-PBU Monih/I'ear of Disposition M+4 ~ ~e1~00 Disposition *Indicate contribution of each pool to total. 1. Sold 0 Pool Name Code Percent 2. Reinjected 0 PRUDHOE 640150 100 3. Flared or vented less than 1 hour ~iS. C00'ifCiISg90[~ 2,165 An~'t~~~ 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 5,486 5. Pilot and Purge 16,461 6. Used for lease operations 562,952 7.Other 0 ................................................................ Ot`fi~ial [Tse Otilj--F!']ai~iiig:Aufluori2ation >: l:h~::::::::: >::::::::: TOTAL items 1 - 7 587,064 1. Safety MCF 8. NGL gas equivalent produced 0 2. Lease Use MCF 9. Purchased gas 0 3. Conserv. Purposes MCF 10. Transferred from: 0 Commissioner Date 11. Transferred to: CCP 26,986,548 Note: All volumes must be corrected to Remarks: pressure of 14.65 psis and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is true and correct to the best of my knowledge. /~ Signatare: ' L. Title: MANAGER month following the month of disposition. Authority 20 AAC 25.235. Form 10-422 (Revised 4/95)` ~ 03-00 FORM 10-422.x1s/FORM 10-422 .. p - BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC-3 GAS FLARING INCIDENT REPORT MARCH, 2000 Unplanned Events less than or equal to 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 3/7/2000 1242-1249 49 Not required for unplanned events which Not required for unplanned events which 3/13/2000 0546-0549 25 are less than or equal to 1 hour are less than or equal to 1 hour 3/15/2000 1611-1625 1,021 3/20/2000 0257-0305 694 3/29/2000 2245-2248 8 3/30/2000 1555-1557 3 3/30/2000 1614-1639 365 TOTAL 2,165 Unplanned Events greater than 1 hour ~ DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 3/7/2000 1354-2400 963 See Attachments See Attachments TOTAL 963 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 See Attachments See Attachments TOTAL Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf ~ DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN"TO ELIMINATE. CAUSE 3/8/2000 0000-2400 1,800 See Attachments See Attachments 3/9/2000 0000-2400 1,800 See Attachments See Attachments 3/10/2000 0000-1218 923 See Attachments See Attachments TOTAL 4,523 TOTAL Unplanned Events < 1 Hour 2,165 Unplanned Events > 1 Hour 963 Planned Events < 1 hour & not 0 exceeding 5,000 MCF Planned Events > 1 hour and 4,523 exceeding 5,000 MCF Pilot Purge 16,461 TOTAL FLARED VOLUME 24,112 ~.~.~~ ~/ APR 7 7 2000 ~aS~(~1 ~~ & AfStf~10 I;1(t11SS40t1 Page 1 REPORT NO: 00-0055 FACILITY: GC-3 SYSTEM 1. Flare/Relief Valve 2. Flare/Relief Valve BPXA FLARE REPORT PRUDHOE BAY DATE: 07 Mar 00 TIME OF FLARING Start Stop Duration 12:42 12:49 OHrs. 7Mins 13:54 24:00 10 Hrs. 6Mins Black Intermittent Smoke Planned VOLUME ^ ^ ~ 49 MSCF ^ ^ ^ 963 MSCF TOTAL VOLUME 1,012 MSCF First Determination of Cause: 1. Micon flare controller failed to manual and partially opened the HP flares on all 1st stages. 2. Extended flaring event occurred when K-5500 wet gas compressor shut down due to seal failure. Action Taken to Stop Flaring: 1. When determination of cause was established flare controller was switched to manual and flare valves were closed. Simultaneously control was switched to local controller. 2. Followed K5500 shutdown procedure. Due to extent of damge caused to seal on K-5500 comp. at 1430 hrs. 50 mbpd water rate was cut in preparation of skim tank shut down. At 1500 hrs. both skim tanks (T-8511 and T-8512) were isolated and A sulzer was shut down. At 1925 hrs. started reducing HP rate to GC-3 and at 2000 hrs all HP rate was isolated to GC- 3 as per procedure. ~~ ~~,P~ 17 2000 Alaska tai ~ Gas Cons. Commission Anchorage Wednesday, March 08, 2000 Page 1 of 1 REPORT NO: 00-0056 ' BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 08 Mar 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 24:00 24 Hrs. OMins ^ ^ ~ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. Extended flaring event occurred when K-5500 wet gas compressor shut down due to seal failure. Action Taken to Stop Flaring: 1. K-5500 shutdown due to seal failure. Per procedure, all GC3 LP gas sources were isolated to minimize flare. ~~ ~~~R ~ 7 zoao Alaska Oii ~ Gas Cons. Cor~mission Anchorage Friday, March 10, 2000 Page 1 of 1 REPORT NO: 00-0059 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 09 Mar 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 24:00 24 Hrs. OMins ^ ^ ~ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. Extended flaring event occurred when K-5500 wet gas compressor shut down due to seal failure. Action Taken to Stop Flaring: 1. K-5500 shutdown 03/07 due to seal failure. Per procedure, all GC3 LP gas sources were isolated to minimize flare as repair continues. ~~ ~'~~~ ~ 7 zooo ~'aska Qii ~ Cas Cans. Commission Anchars~e Friday, March 10, 2000 Page 1 of 1 REPORT NO: 00-0060 ~~ BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 10 Mar 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 12:18 12 Hrs. 18Mins ^ ^ ~ 923 MSCF TOTAL VOLUME 923 MSCF First Determination of Cause: 1. Extended flaring event occurred when K-5500 wet gas compressor shut down due to seal failure. Action Taken to Stop Flaring: 1. K-5500 shutdown 03/07 due to seal failure. Per procedure, all GC3 LP gas sources were isolated to minimize flare as repair continues. ~~~~ ~~.~'R ~ 7 2Q~0 AlaskaCAi ~ Gas Cons. Casnmis«ron Anchorage Monday, March 13, 2000 Page 1 of 1 ' GC3 K-5500 question Subject: GC3 K-5500 question Date: Wed, 08 Mar 2000 14:08:32 -0900 From: Wendy Mahan <Wendy_Mahan@admin.state.ak.us> Organization: doa-aogcc To: pbuprodopttl@bp.com CC: Robert Christenson <robert_Christenson@admin.state.ak.us>, Dan Seamount <dan_seamount@admin.state.ak.us>, Camille Oechsli <cammy_oechsli@admin.state.ak.us> Mr. French, The purpose of this email is to document our conversations earlier today regarding potential flaring associated with GC3 K-5500 replacement activity. You indicated that the K-5500 had a seal failure and that the unit was being replaced with another K-5500 located on the North Slope. Associated down time to replace the equipment is estimated at 48 hours. You stated that BPX has followed written flaring policy for GC-3/K-5500 Wet Gas Compressor Shutdown and you are currently operating at a reduced rate of 36,000 bopd (normal production is approximately 57,000 bopd). Due to the extended nature of the shutdown, BPXA needs to make a decision later today regarding full facility shutdown. According to your estimates, if you maintain current production rates, you will flare 3.6 mmscf during the 48 hour period. If you shut down the facility, added fuel and startup flaring is estimated at 2.8 mmscf. Full facility shutdown would result in 800 mscf savings, but also 72,000 bbls lost oil production. Assuming that BPX continues to follow written procedures and if the data submitted to the Commission substantiates that BPX utilized good oilfield engineering practices, the associated flaring remains potentially approvable. The Commission would likely view it in the same manner as past flaring event associated with K-5500 repairs. Please call if you have any further questions. Wendy Mahan Natural Resource Manager 4/4/00 9:45 AM 1 of 1 BP EXPLORATION TO: FROM: SUBJECT: AOGCC Attn: Ms. Wendy Mahan Tom French Production Optimization Team Leader GC-3 Flaring March 7th through 10tH Memorandum oaTE: March 13, 2000 Ms. Mahan, The intent of this letter is to summarize the events related to the recent unplanned shutdown of compressor K-5500 at GC-3, as well as the repair sequence and the actions taken to minimize flaring. At 1400 hours on March 7th, the area operator reported that K-5500 was abnormally noisy , and that an oil/gas mist was spraying from the inboard seal. The control room operator immediately shut the compressor down and dispatched the emergency response team. The module was then isolated and ventilated. When the module was safe and secure the night shift operators began isolation and purging procedures to prepare the compressor for repair. During this time the K-5500 Compressor Shutdown Procedure was followed to minimize flaring. Because the nature of the problem was thought to be extensive, the Production Control Center (PCC) moved immediately to step three of the procedure. Enough water production was to allow the GC-3 produced water system to be shut in and the Sulzer water injection pump was shut down at 1500 hours. HP production to GC-3 was cut beginning at 1925 hours, and by 2000 hours all HP production was shut in. GC-3 production rate had now been turned down from 56 MOBPD to 28 MOBPD. During the morning of March 8th, we evaluated our options regarding GC-3 operations. Our Rotating Equipment Engineer and Overhaul Supervisor determined that the compressor would have to be replaced, a procedure that would take approximately 48 hours. Our flare and fuel gas estimations for each of our options are below, in MMSCFD. GC-3 remains on-line GC-3 is Shut down Turned down flare rate 1.8 Fuel gas to replace waste heat 1.8 generated in E-7010. .9 MMSCFD x 2 days to replace compressor 2 Fuel gas flared through the copus 1 turbine to restart the LPS compressors Total gas flared 3.6 Total gas flared and burned 2.8 After notifying the AOGCC, we decided to keep GC-3 on line in its turned down mode. Maintenance teams were already scheduled to work around the clock until the compressor was restarted. The chronology of our maintenance effort is below. March 7th 1400 K-5500 developed seal leak and was shut down. Module was secured and ventilated. 1830 Fire & Gas Technician re-calibrated F&G system. Began K-5500 safe out and purge. March 8th 0530 Controls Techs. removing instrumentation in preparation of blinding. 0930 Blinding begins. 1400 Mechanics begin compressor replacement. 2300 Piping crew begin re-assembly of compressor piping. March 9th 0230 Controls Techs. installing instrumentation on compressor. 0730 Mechanics begin alignment and coupling installation. 1300 Pipe fitters remove orifice to check for blockage. 1330 Maint. Techs. replace Tube oil filters and coelessor filters. 1745 The separator heater is removed to clean the bottom section of the coelessor. March 10th 0100 Separator heater is reinstalled. 0215 Controls Techs. repairing compressor slide valve. 0300 Began filling Tube oil system 0700 Pre-start diagnostics begin. Test Tube oil regulators, check tubing fittings etc. 0900 Begin K-5500 safe-in. 1220 On second try K-5500 running and on-line. The compressor replacement was completed within the 48 hour estimate and we estimate that the flared volumes were as predicted. During this flaring incident BP followed the approved procedures, worked diligently to expedite the repair of K-5500, and took prudent steps to minimize the associated flaring. If you require further information, do not hesitate to call. Sincerely Tom French ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility ~ GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) WESTERN OPERATING AREA-PBU Month/Year of Disposition Apr-00 Disposition *Indicate contribution of each pool to total. 1. Sold 0 Pool Name Code Percent 2. Reinjected 0 PRUDHOE 640150 100 3. Flared or vented less than 1 hour 1,538 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 2,162 5. Pilot and Purge 19,095 6. Used for lease operations 512,892 7.Other 0 ................................................................ Official Use Otily--daring Atttlinriiation > 1 lu TOTAL items 1- 7 535,687 1. Safety MCF 8. NGL gas equivalent produced 0 2. Lease Use MCF 9. Purchased gas 0 3. Conserv. Purposes MCF 10. Transferred from: 0 Commissioner Date 11. Transferred to: CCP 25,508,371 Note: All volumes must be corrected to Remarks: pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is true and correct to the best of my knowledge. Signature: ~ ~ Title: MANAGER month following the month of disposition. Authority 20 AAC 25.235. Form 10-422 (Revised 4/95) v ~ 04-00 FORM 10-422.x1s/FORM 10-422 BP EXPLORATION (ALASKA) INC. .~ PRUDHOE BAY UNIT - GC-3 GAS FLARING INCIDENT REPORT APRIL, 2000 Unplanned Events less than or equal to 1 hour :::::.:..DATE '' _:::. .T:IM:E ......:: ::::::VOCUME ::: a€3ESCRIPTIC)N:Of:INCIUEM:&:Ci4##SE:.::..:.:: 4~~~OM.Ti?,KENTO FI1MIIdA~:GAUSE. 4/1/00 1449-1451 43 Not required for unplanned events which Not required for unplanned events which 4/1/00 1723-1725 4 are less than or equal to 1 hour are less than or equal to 1 hour 4/4/00 1410-1507 194 4/12/00 0439-0442 6 4/19/00 1312-1315 31 4/23/00 1354-1424. 1,250 4/23/00 1649-1651 10 TOTAL 1,538 Unplanned Events greater than 1 hour ~ GA7~"` .: :€fiIM~ YaI~I~M~ , IGIESGRIAI'I~#N OF tMGIDE~tT;;& CAtI~~' ..:::~4;~~'tON`fAK~1~.tO E1»IMINA'GAU~~~. 4/4/00 1511-1622 212 See Attachments See Attachments 4/20/00 0954-1159 450 See Attachments See Attachments 4/20/00 1719-2030 1,500 See Attachments See Attachments TOTAL 2,162 Planned Events Less Than or Equal 1 Hour AND Not Exceeding 5000 Mcf ~ ::::::::::DATE ......:::.. TIIVItE:::::` '::'.:. VOLUM1r:::::::a3ESCRIATIUN OIF.tNCI€#EId~'& CAUgE..:'. AGTiC1N:'EAKEN,TQELIIVIINATIr;CAUSE :;.., . See Attachments See Attachments TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf ~ ;:,4AT~ "I'IIVk~ '' 114~U1~~:::: i3ESs~F'iIP~'14)N O~.iNCll~~i1~'& C,4#IS~ .. a~~tON 7AK~N;tO,f^~.IMINATI:,CfkU See Attachments See Attachments TOTAL 0 T~ST4L Unplanned Events < 1 Hour Unplanned Events > 1 Hour Planned Events < 1 hour & not exceeding 5,000 MCF Planned Events > 1 hour and exceeding 5,000 MCF Pilot Purge TOTAL FLARED VOLUME 1,538 2,162 0 0 14 095 22, 795 Page 1 BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC-3 GAS FLARING INCIDENT REPORT APRIL, 2000 Unplanned Events less than or equal to 1 hour ~ ~. DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 4/1/2000 1449-1451 43 Not required for unplanned events which Not required for unplanned events which 4/1/2000 1723-1725 4 are less than or equal to 1 hour are less than or equal to 1 hour 4/4/2000 1410-1507 194 4/12/2000 0439-0442 6 4/19/2000 1312-1315 31 4/23/2000 1354-1424 1,250 4/23/2000 1649-1651 10 TOTAL 1,538 Unplanned Events greater than 1 hour ~ DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 4/4/2000 1511-1622 212 See Attachments See Attachments 4/20/2000 0954-1159 450 See Attachments See Attachments 4/20/2000 1719-2030 1,500 See Attachments See Attachments TOTAL 2,162 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' See Attachments See Attachments TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf DATA' TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE' CAUSE See Attachments See Attachments TOTAL 0 T07AL Unplanned Events < 1 Hour 1,538 Unplanned Events > 1 Hour 2,162 Planned Events < 1 hour & not 0 exceeding 5,000 MCF Planned Events > 1 hour and 0 exceeding 5,000 MCF Pilot Purge 19,095 TOTAL FLARED VOLUME 22,795 Page 1 REPORT NO: OO-0080 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 04 Apr 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 14:10 15:07 0 Hrs. 57Mins ^ ^ ^ 194 MSCF 2. Flare/Relief Valve 15:11 16:22 1 Hrs. 11 Mins ^ ^ ^ 212 MSCF TOTAL VOLUME 406 MSCF First Determination of Cause: 1. K-5500 Wet Gas Compressor S/D due to high tube oil temperature caused by faulty cooling water control valve. 2. K-5500 Wet Gas Compressor S/D due to high tube oil temperature caused by faulty cooling water control valve. Action Taken to Stop Flaring: 1. Following K-5500 shut down procedure, flaring was permitted for 1 hour while Techs, trouble shoot problem. There was no assist gas added to flare while flaring. 2. Following K-5500 shut down procedure, after one hour of flaring, one skim tank (T-8511) was removed from service to reduce flaring by .6 mmscfd. K-5500 was restarted after being shut down a total of 2 hours and 8 minutes. There was no assist gas added during flaring. F _ ~"; ~1 ; Thursday, April 06, 2000 Page 1 of 1 REPORT NO: 00-0090 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 20 Apr 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke 1. Flare/Relief Valve 09:54 11:59 2 Hrs. 5Mins ^ ^ 2. Flare/Relief Valve 17:19 20:30- 3 Hrs. 11 Mins ~ ^ Planned TOTAL VOLUME VOLUME 450 MSCF 1,500 MSCF 1,950 MSCF First Determination of Cause: 1. K-5500 Wet Gas Compressor shutdown. Probable cause: Loss of purge air to explosion proof control panel (due to possible relay failure). 2. High gas transit line pressure caused by CGF compressor problems due to instrumentation problems. Action Taken to Stop Flaring: 1. Standard GC-3/K-5500 Flaring Procedure was implemented at start of event. After approximately one hour, at 10;40 AM, one GC-3 skim tank was shut in to cut LP gas while troubleshooting compressor problem. All GC-3 produced water was routed to FS-3 to eliminate skim tank level fluctuations to minimize resulting gas flaring. At 11:59 AM the Compressor was returned to service. Production Control Center operator on shift was Mike Jackson, GC-3 control room operator on shift was Lou Tanske. 2. BPX reduced production rates and shut-in 43 wells equaling 550 mmscfd. ARCO reduced production rates and shut-in 22 wells equaling 550 mmscfd. Wells were shut-in or choked back starting at 1740 hours. . Monday, April 24, 2000 Page 1 of 1 - - ~ ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) Month/Year of Disposition WESTERN OPERATING AREA PBU May-00 Disposition *Indicate contribution of each pool to total. 1. Sold 0 Pool Name Code Percent 2. Reinjected 0 PRUDHOE 640150 100 3. Flared or vented less than 1 hour 664 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 845 5. Pilot and Purge 32,535 6. Used for lease operations 528,250 7. Other 0 ................................................................ Official IIse:Orily:=Fiai~ing: Aut~ioriiation >. laar: :::::::::::::::: TOTAL items 1 - 7 562,294 1. Safety MCF 8. NGL gas equivalent produced 0 2. Lease Use MCF 9. Purchased gas 0 3. Conserv. Purposes MCF 10. Transferred from: 0 Commissioner Date 11. Transferred to: CCP 26,133,986 Note: All volumes must be corrected to Remarks: pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is e and correct to the best of my knowledge. Signature: Title: MANAGER month following the month of disposition. Authority 20 AAC 25.235. -- - Form 10-422 (Revised 4/95) OS-00 FORM 10-422.x1s/FORM 10-422 BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC-3 GAS FLARING INCIDENT REPORT MAY, 2000 Unplanned Events less than or equal to 1 hour ~ "DATI: ::::'TIME ..:.: UC34I;1M~ ....:DE$GRIPT#i~N t?F ENCIpENT:&GAUSE:. i4C71~N 7A~>y"I"QELI[~IIN~ITIr:~A~€SE 5/6/00 0647-0656 250 Not required for unplanned events which Not required for unplanned events which 5/6/00 1109-1113 100 are less than or equal to 1 hour are less than or equal to 1 hour 5/15/00 1022-1030 194 5/23/00 1158-1200 7 5/25/00 1224-1226 7 5/26/00 0743-0802 66 5/26/00 0802-0815 40 TOTAL 664 Unplanned Events greater than 1 hour ~ ~ ~ ~ ~ . ~ ~ ~ ~ r,., , ~ ._ ., ~ ., ~ ~ ....................... . . €lA'I•~.:: .................. ............... `:'.'.: TIAAE ' :: , ................... .. ,..,.,..._ ...............................................................r . . . . :::vbr)1ME ' ::DESGRIP'ftON.(1F1N~IRI=NT.&~AUSE..: ... ..................... ... .............................. ...~ ACT"ION:TAtC~Pf:T~? EL1~1111~IATE:Ci4i}S~..... 5/26/00 0815-1000 160 See Attachments See Attachments 5/26/00 1000-1134 326 See Attachments See Attachments 5/26/00 1134-1416 248 See Attachments See Attachments 5/26/00 1416-1536 111 See Attachments See Attachments TOTAL 845 Planned Events Less Than or Equal 1 Hour AND Not Exceedin 5000 Mcf [3A"EE:' .::::.:::::.TIME::::::::.::~IOLUIaAE DESGFiIPTdON;~F)NDID~N1'& ~AIl~E ACTIQNT~X(CI_N TOEL1:IIili~l~iTE:CA~Sl= See Attachments See Attachments TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf ~ C7A''FL ~711i11~ VCfikUM~:.::: b~SCI~Ip7-0~1 d~ tNClb)f~lt ~~'AUSE. ' :::/#CTION 7~i[C~~l ~d:~C1MiA1At~~A#]~,.-~ See Attachments See Attachments TOTAL 0 ~~7~L' Unplanned Events < 1 Hour 664 Unplanned Events > 1 Hour 845 Planned Events < 1 hour & not 0 exceeding 5,000 MCF Planned Events > 1 hour and 0 exceeding 5,000 MCF Pilot Purge 32 535 TOTAL FLARED VOLUME 34,044 Page 1 REPORT NO: 00-0122 FACILITY: GC-3 SYSTEM 1. Flare/Relief Valve 2. Flare/Relief Valve 3. Flare/Relief Valve 4. Flare/Relief Valve 5. Flare/Relief Valve 6. Flare/Relief Valve BPXA FLARE REPORT PRUDHOE BAY DATE: 26 May 00 TIME OF FLARING Start Stop Duration 07:43 08:02 0 Hrs. 19Mins 08:02 08:15 0 Hrs. 13Mins 08:15 10:00 1 Hrs. 45Mins 10:00 11:34 1 Hrs. 34Mins 11:34 14:16 2 Hrs. 42Mins 14:16 15:36 1 Hrs. 20Mins Black Intermittent Smoke Planned VOLUME ^ ^ ^ 66 MSCF ^ ^ ^ 40 MSCF ^ ^ ^ 160 MSCF ^ ^ ^ 326 MSCF ^ ^ ^ 248 MSCF ^ ^ ^ 111 MSCF TOTAL VOLUME 951 MSCF First Determination of Cause: 1. K5500 wet compressor was shutdown at 0743 hrs to troubleshoot a mechanical problem. 2. K5500 wet compressor was shutdown at 0743 hrs to troubleshoot a mechanical problem. 3. K5500 wet compressor was shutdown at 0743 hrs to troubleshoot a mechanical problem. 4. K5500 wet compressor was shutdown at 0743 hrs to troubleshoot a mechanical problem. Both skim tanks were placed in service in preparation for restart of K5500. 5. K5500 wet compressor was shutdown at 0743 hrs to troubleshoot a mechanical problem. 6. K5500 wet compressor was shutdown at 0743 hrs to troubleshoot a mechanical problem. Controls technicians found a purge and motor problem, and corrected the problem. However, a PLC problem is still preventing the compressor from starting up. Action Taken to Stop Flaring: 1. Production cuts to lower the facility water production to 50 mbwd in order to isolate both skim tanks and minimize the volume of flared gas were immediately initiated at 0719 hrs, when the GC notified Production Control that the shutdown of the compressor was imminent. K5500 was shut down at 0743 hrs. Tuesday, May 30, 2000 Page 1 of 2 REPORT NO: 00-0122 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 26 May 00 2 ~ GC isolated one of two oil skim tanks to further reduce the rate of flarings as a result of K5500 shutdown. 3 ,Ql. GC isolated the second oil skim tank, and all produced water from GC3 was transferred to FS3, eliminating the flared gas from the water handling facility, and reducing flared gas volumes to 2.2 mmscfd. The problem with K5500 was identified and rectified. Re-starts on K5500 were attempted two times. ~ 1~ Two more attempts were made to restart K5500 without success. S 1Jf . Since four attempts to restart K5500 were unsuccessful, both skim tanks were taken out of service to minimize the volume of flared gas. ~ 1~. 250 mmscfd high pressure production was shut in or transferred out of GC3 to the Annex to reduce the volume of flared gas from the condensate associated with high pressure production. Flared gas volumes were reduced to 2.0 mmscfd at 1416 hrs. K5500 was restarted successfully at 1536 hrs. Tuesday, May 30, 2000 Page 2 of 2 ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) Month/Year of Disposition WESTERN OPERATING AREA PBU Jun-00 Disposition *Indicate contribution of each pool to total. 1. Sold =' - ' r:q ~,~ 0 Pool Name Code Percent 2. Reinjected `' ~'- ~ ~ 20~p 0 PRUDHOE 640150 100 ~ua~a Oil ~ Gas Cons. Coma 3. Flared or vented less than 1 hour ~, .~ ;fir, ~1f~,178 2,900 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 2,993 5. Pilot and Purge 21,842 6. Used for lease operations 478,194 7. Other 0 ................................................................ Official Ilse:Orily:=Fiaiiirg:Aut~oriation> 1aari.« : »»::::::::: TOTAL items 1- 7 505,929 1. Safety MCF 8. NGL gas equivalent produced 0 2. Lease Use MCF 9. Purchased gas 0 3. Conserv. Purposes MCF 10. Transferred from: 0 Commissioner llate 11. Transferred to: CCP 24,116,334 Note: All volumes must be corrected to Remarks: pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is true and correct to the best of my knowledge. Signature: ~~ ~~ .° Title: SUPERVISOR month following the month of disposition. Authority 20 AAC 25.235. Form 10-422 (Revised 4/95) ~ 06-00 FORM 10-422.x1s/FORM 10-422 BP EXPLORATION (ALASKA) INC. j. PRUDHOE BAY UNIT- GC-3 - GAS FLARING INCIDENT REPORT JUNE, 2000 Unplanned Events less than or equal to 1 hour DATE TIME VOLUME DESCRIPTION OFINCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 6/5/2000 0316-0317 14 Not required for unplanned events which Not required for unplanned events which 6/7/2000 0145-0148 15 are less than or equal to 1 hour are less than or equal to 1 hour 6/7/2000 0651-0654 75 6/7/2000 0715-0717 31 6/10/2000 1334-1338 417 6/10/2000 1659-1701 14 6/12/2000 0802-0823 420 w ~~ w ~;, 6/17/2000 1217-1312 191 ` ~ ~~ 6/20/2000 0732-0849 97 3 ~Q~~ ' 6/20/2000 1117-1138 263 ~y „j~ ~ 6/20/2000 1411-1428 401 6/22/2000 1159-1205 342 ~~~ a~ ~ G8S ~$, ~F{'lITI{>~` 6/24/2000 0811-0835 100 A~'+"h~-r~~ 6/24/2000 0849-0916 94 6/24/2000 1057-1112 42 6/24/2000 1347-1446 287 6/25/2000 1521-1541 97 TOTAL 2,900 Un tanned Events greater than 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 6/5/2000 1142-2400 871 See Attachments See Attachments 6/6/2000 0000-1600 1,133 See Attachments See Attachments 6/17/2000 1312-1620 574 See Attachments See Attachments 6/17/2000 1620-1830 199 See Attachments See Attachments 6/17/2000 1830-2123 216 See Attachments See Attachments TOTAL 2,993 Planned Events Less Than or E ual 1 Hour AND Not Exceedin 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 TOTAL Unplanned Events < 1 Hour 2,900 Unplanned Events > 1 Hour 2,993 Planned Events < 1 hour & not 0 exceeding 5,000 MCF Planned Events > 1 hour and 0 exceeding 5,000 MCF Pilot Purge 21.842 TOTAL FLARED VOLUME 27.735 Page 1 REPORT NO: OO-O1 Z8 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 05 Jun 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke 1. Flare/Relief Valve 03:16 03:17 0 Hrs. 1 Mins ^ ^ 2. Flare/Relief Valve 11:42 24:00 12 Hrs. 18Mins ^ ^ Planned TOTAL VOLUME First Determination of Cause: 1. High gas transit line pressure. 2. K-5500 was shut down due to excessive vibration. VOLUME 14 MSCF 871 MSCF 885 MSCF Action Taken to Stop Flaring: 1. BPX reduced production rates and shut-in 2 wells equaling 50 mmscfd. ARCO reduced production rates and shut-in 4 wells equaling 55 mmscfd. Wells were shut-in or choked back starting at 03:16 hours. 2. According to approved procedure BP cut 80,000 water, 150 mmccfd gas to allow GC to take produced water tanks out of service. Rates were reduced starting at 1105 hrs. Fuel gas (blanket gas) was shut off to produced water tanks and vent gas blowers were shut down after tanks were taken out of service. Report will follow. 1 f'I ,~'l~, Wednesday, June 07, 2000 ~` "~ "~ J ~ J`~'~ Page 1 of 1 ~.J~ ?~~~ (~` ~ ~3S 1.,0115C~+f~o41fi11~"*~ `' REPORT NO: ~~-0130 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 06 Jun 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 16:00 16Hrs. OMins ^ ^ ^ 1,133 MSCF TOTAL VOLUME 1,133 MSCF First Determination of Cause: 1. K-5500 was shut down due to excessive vibration. Action Taken to Stop Flaring: 1. According to approved procedure BP cut 80,000 water, 150 mmcsfd gas to allow GC to take produced water tanks out of service. Rates were reduced starting at 1105 hrs. Fuel gas (blanket gas) was shut off to produced water tanks and vent gas blowers were shut down after tanks were taken out of service. Report will follow. .s., ~ _ .vii r. R.,.„ii Wednesday, June 07, 2000 ~; t~ ; ~ ~d V~~ ti.,1` Alma 0i1 ~ Gas CUns. Cor~mi~4~°F` ~c~e Page 1 of 1 REPORT NO: 00-0148 FACILITY: GC-3 SYSTEM 1. Flare/Relief Valve 2. Flare/Relief Valve 3. Flare/Relief Valve 4. Flare/Relief Valve BPXA FLARE REPORT PRUDHOE BAY DATE: 17 Jun 00 TIME OF FLARING Start Stop Duration 12:17 13:12 OHrs. 55Mins 13:12 16:20 3 Hrs. BMins 16:20 18:30 2 Hrs. 1 pMins 18:30 21:23 2 Hrs. 53Mins Black Intermittent Smoke Planned VOLUME ^ ^ ^ 191 MSCF ^ ^ ^ 574 MSCF ^ ^ ^ 199 MSCF ^ ^ ^ 216 MSCF TOTAL VOLUME 1,180 MSCF First Determination of Cause: 1. K5500 Wet Gas compressor shutdown. 2. K5500 Wet Gas compressor shutdown. 3. K5500 Wet Gas compressor SD. 4. K5500 Wet Gas compressor SD. Action Taken to Stop Flaring: 1. One attempt was made to start the compressor, but an instrument technician had to be called to assist in the restart of the compressor. GC3 operations started to isolate one of the two oil skim tanks to reduce flaring until the compressor was restarted. The technician replaced a broken MI cable located on the high discharge pressure transmitter. 2. One of two oil skim tanks was isolated to reducted flaring. Technicians continued efforts to restart the compressor three times were unsuceessful. Started ramping down water rates at 1600 hrs to further reduce flaring. 3. Production cuts made resulted in approximately 50 mbwd through the GC. At 1620 hrs, the second skim tank was isolated, and the GC Produced Water System was shutdown, eliminating all flared gas from the Produced Water System, thus, reducing flared gas to approximately 2.2 mmscfd. At 1745hrs after talking to the GC Boardman and a re-start was not likely. The decision was made to shut-in all HP production. This was done at 1830hrs. ,. E ~ .. ~$ Monday, June 19, 2000 ~';.~ j 3 ~ Page 1 of 2 Alaska Oii & Gas Cons. CorrSrr~~~~ REPORT NO: 00-0148 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 17 Jun 00 4, J~. All high pressure production into GC3 was shutdown by 1830 hrs, eliminating flared gas from the condensate associated with high pressure production, and reducing flared gas volumes to approximately 1.8 mmscfd. K5500 was restarted at 2123 hrs. Monday, June 19, 2000 ... ~ Page 2 of 2 ..e~.. i •J ~_.~; Alaska Oil 8 Gas Cons. t:;o,ftr~t~~~, i~ ExP1.ORl~ION Memorandum ro: AOGCC DATE: June 8, 2000 Attn: Ms. Wendy Mahan FROM: Tom French Production Optimization Team Leader susrecT: GC-3 Flaring June 5 - 6 Ms. Mahan, This letter is a summation of the events related to the unplanned shutdown of compressor K-5500 at GC-3, and the actions taken to minimize flaring. On June 4~' the vibration on K-5500 wet gas compressor began to increase exponentially. The vibration continued to increase so that on the following morning, June 5~', we decided to shut down the compressor. We believed that failure of the compressor was imminent. The K-5500 Compressor Shutdown Procedure was followed to minimize flaring. Because we knew K-5500 would be off-line for approximately twenty four hours, the Production Control Center (PCC) moved immediately to step three of the procedure prior to shutting the compressor down. At 1100 hours enough water production was cut to allow the GC-3 produced water system to be shut in and taken out of service. K-5500 was then shut down at 1145 hours. All appropriate maintenance crews were dispatched to install the spare compressor The compressor replacement went very well and was completed in just under 24 hours. After an additional 4 hours of restart diagnostics and troubleshooting, K-5500 was placed on-line at 1600 hours on June 6~'. At 1630 hours we began to ramp production back up. During this flaring incident BP followed the approved procedures, worked diligently to install the K-5500 spare compressor, and took prudent steps to minimize the associated flaring. If you require further information please call. Sincerely Tom French ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) Month/Year of Disposition WESTERN OPERATING AREA PBU Jul-00 Disposition *Indicate contribution of each pool to total. 1. Sold "~~ ~ ~ ~~ ~,~ 0 Pool Name Code Percent 2. Reinjected ,c ,~,~ ~ s ~ !.l~ L: J 0 PRUDHOE 640150 100 1y~' p '~~i.v~T ~y ~a u5. 6o~'iY Ni.'t V ': ~~ ~{ J wit%tj 3. Flared or vented less than 1 hour E~ ,~~u4~44~t~~ 597 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 1,400 5. Pilot and Purge 21,591 6. Used for lease operations 466,861 7.Other 0 ................................................................ Offi~ral:~s@:nnly:=Fiartig;Aut~iorization >:1:3iri::::::::::`::::::: >:::: TOTAL items 1 - 7 490,449 1. Safety MCF 8. NGL gas equivalent produced 0 2. Lease Use MCF 9. Purchased gas 0 3. Conserv. Purposes MCF 10. Transferred from: 0 Commissioner llate 11. Transferred to: CCP 23,369,241 Note: All volumes must be corrected to Remarks: pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is true and correct to the best of my knowledge. ~ Signature: ~ ,_~ ~/-~-~ !~ Title: SUPERVISOR month following the month of disposition. Authority 20 AAC 25.235. Form 10-422 (Revised 4/95) 07-00 FORM 10-422.x1s/FORM 10-422 . ~ BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC-3 GAS FLARING INCIDENT REPORT JULY, 2000 Page 1 Unplanned Events less than or equal to 1 hour ~ ::::: ~-: :::: ,..,... >~.:. .:.:.:.:. :::::::::::::::1'I :::::::::::: :.:.:.:.:.:.:.:.::.r~~ .:.:.:.:.:.:.: :::::::: :.. .:. ::::::it ...::...a~s~~IP~"I~ ...oI~:INC~D~Nt::~:cal~~~::::::::::::::::::::: .:.:.:.:.:~>~~~~.:.:.:...:.............................. ~v.:.................................................................... :.:.:.:...'1,'I rE~ 4 ELIMINA::I~:GAU :::::::ac: 4N.r~- ............................. ....... ........................................................................... . 7/4/00 1136-1148 117 Not required for unplanned events which Not required for unplanned events which 7/6/00 2209-2214 43 are less than or equal to 1 hour are less than or equal to 1 hour 7/15/00 2106-2109 10 7/21 /00 1549-1608 367 7/23/00 0000-0048 60 TOTAL 597 Unplanned Events greater than 1 hour 1 y~ tt k~ kk~~**tl~.~~'l~ ,C I. .:: Y~ : i~ .~ i ~ i:i i ' ~. ;i: is is is is is i:i:i: i::;:' N ~TI~N ... N T. ::::::..: ::.:.:.:.:.:.:.:.:.:.:.:.::IMf~ ~/tit:UME:::::::::::OESCI~tIPT1~4Nt~l*INOtpE ....&.~~U~ ............. A ................................................................... ,.,., I~~c~ .:....:.:.:.:.:.:.:.:.T..............................:...:............................................................................................................................................................................................................ . 7/22/00 0945-2400 1,400 See Attachments See Attachments TOTAL 1,400 Planned Events Less Than or Equal 1 Hour AND Not Exceeding 5000 Mcf ~ T ........ M NATE. l#KI~' ~4EI.1 ::::.::::: ::::::::::::::::::::::::.:: :::::::::::::::::::::::: E::::::.::::DE~ORIPTI~IVf3FIN~DENT& CAU~~s... . i~1CT~QN . N . QATE :...:.:.:.:.:.:.:.:.....TIME.................:....V~~.~M..,...,.,.......,........................, ..,.....................................................................................................................................................................................:.:.:.:................. .... . See Attachments See Attachments TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf :, :........: ::. .: ::. :.................................. .............................. .................................................................................................................A E .................... N:TAK£N T .:EIIMINATE:C :::.......:: ::::::::::::::::::::. :UME ....::::DE AIPTI .N.: .F:IN DENT:&: AU E.::::::::::::::A Tk ......... ~ ................ .U.~..:::......... OA'I'~ ........................'~'IpilE.............:.:.:....~tt~L, SSC....:.:.:.:.C~.....~.....:...~,,,,.,..........:.:.C......:'~.:.:.:...............:.:.:.:.......G....:U..................:.:.................................................................................... See Attachments See Attachments TOTAL 0 Unplanned Events < 1 Hour Unplanned Events > 1 Hour Planned Events < 1 hour & not exceeding 5,000 MCF Planned Events > 1 hour and exceeding 5,000 MCF Pilot Purge TOTAL FLARED VOLUME T~QTpc[s ~~ 597 1,400 0 0 21 591 23, 588 ~~`'~. p REPORT NO: 00-0191 BPXA FLARE REPORT PRUDHOE BAY t FACILITY: GC-3 DATE: 22 Jul 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 09:45 24:00 14 Hrs. 15Mins ^ 0 ^ 1,400 MSCF TOTAL VOLUME 1,400 MSCF First Determination of Cause: 1. K5500 wet gas compressor was shut down for maintenance to remover strainer in tube oil line. Action Taken to Stop Flaring: 1. One skim tank was taken out of service to reduce the amount of flaring. After 4 hours of down time the remaining tanks were taken out of service, 50 mbwpd rate cuts were made and remaining water was shipped in the tie-line to Flow Station 3. After 9 hours 5 HP wells and 3 HP headers were moved to Annex service, 2 wells equalling 55 mmscf were shutin, at this time all HP production was removed from GC. Monday, July 24, 2000 Page 1 of 1 r BP EXPLORAT~N Memorandum to: AOGCC DATE: July 24, 2000 Attn: Ms. Wendy Mahan FROnn: Tom French Production Optimization Team Leader suB~ecT: GC-3 Flaring July 22, 2000 Ms. Mahan, This letter is a summation of the events related to the planned shutdown of compressor K- 5500 at GC-3 on July 22, 2000, and the actions taken to minimize flaring. As a result of our ongoing efforts to increase the reliability of K-5500, we identified a strainer in the Tube oil system which we believed to be partially fouled. This caused an excessive differential pressure across the lube oil system which we had previously attributed to problems with the filter system. The strainer is located in a short piping spool which is relatively easy to remove. We decided to remove and clean this strainer in a planned way, rather that risk another unplanned shutdown possibly at an inopportune time. We estimated the total down time to clean this strainer to be less than four hours. To expedite this repair the following preparations were made. 1. All the tools necessary were staged at the work site. 2. An electrician was staged to isolate and re-energize the electrical breaker. 3. Five operators were staged to isolate and de-energize the compressor. 4. Two pipe fitters were used to ensure a speedy job. 5. Three controls technicians were standing by to assist in restart. 6. One safety technician was present to monitor benzene concentrations. During this work the K 5500 Compressor Shutdown Procedure was followed to minimize flaring. At 0945 hours K-5500 was shut down. Although we had checked the benzene levels the previous day we experienced some initial problems getting those levels to a safe range. We purged the unit to remove the benzene, equipped the workers with breathing air, and removed the strainer. After fours hours of down time we moved to step three and shut in all of the produced water tanks. At approximately 1545 hours we attempted to start the compressor. We experienced problems with position of the slide valve which is a start permissive. We performed several restart attempts. Believing that restart was eminent we delayed moving to step four for two additional hours. We then moved to step four and cut all HP production. We continued to troubleshoot and found that a potentiometer had failed causing an inaccurate slide valve position indication. We had not seen this type of failure before. The potentiometer was replaced and restart was successful. The compressor was put online at 0048 hours on July 23. The produced water tanks were returned to service and HP production put back on line. Although this repair took several hours longer than we anticipated, we had taken all foreseeable precautions to ensure that the compressor down time and associated flaring were kept to a minimum. It remains our belief that doing this preventative maintenance in a planned manner was a prudent choice. I have included with this letter a text copy of the flare report for that day. If you require further information please call. Sincerely Tom French 00-0191 REPORT NO: BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 22 Jul 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1.Flare/Relief Valve 09:45 24:00 14Hrs 15Mins 1,400 MSCF TOTAL VOLUME 1,400 MSCF First Determination of Cause: 1.K5500 wet gas compressor was shut down for maintenance to remover strainer in tube oil line. Action Taken to Stop Flaring: 1.One skim tank was taken out of service to reduce the amount of flaring. After 4 hours of down time the remaining tanks were taken out of service, 50 mbwpd rate cuts were made and remaining water was shipped in the tie-line to Flow Station 3. After 9 hours 5 HP wells and 3 HP headers were moved to Annex service, 2 wells equalling 55 mmscf were shutin, at this time all HP production was removed from GC. GC-3 Flaring July 22 Subject: GC-3 Flaring July 22 Date: Mon, 24 Jul 2000 12:51:45 -0500 From: "PBU, Prod Opt TL" <PBUProdOptTL@BP.com> To: "'Wendy Mahan"' <Wendy_Mahan@admin.state.ak.us> CC: "EOC Supervisor PRB (Phillips)" <P2013@ppco.com>, "PBU, NS Optimization Engineer" <PBUNSOptimizationEngineer@BP.com> Ms. Mahan, Enclosed are two documents that explain a flaring incident at GC-3 beginning July 22 and ending on July 23. If you require more information please let me know. Thank You Tom French «GC-3 Flaring 7-24-OO.doc» «GC-3 Flare Report 7-22-2000.doc» Name: GC-3 Flaring 7-24-OO.doc GC-3 Flari~7-24-OO.doc Type: Microsoft Word Document (application/msword) Encoding: base64 Name: GC-3 Flare Report 7-22-2000.doc GC-3 Flare Report 7-22-ZOOO.doc Type: Microsoft Word Document (application/msword) Encoding: base64 7/26/00 8:34 AM lofl ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) Month/Year of Disposition - WESTERN OPERATING AREA-PBU Aug-00 Disposition *Indicate contribution of each pool to total. 1. Sold 0 Pool Name Code Percent 2. Reinjected 0 PRUDHOE 640150 100 3. Flared or vented less than 1 hour 1,686 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 12,385 5. Pilot and Purge 29,657 6. Used for lease operations 471,515 7.Other 0 ................................................................ Offizal Use:C3n1y:=F1.a~ing Authorization:>:~:}iri.:::::: >::::~::::::~ TOTAL items 1- 7 515,243 1. Safety MCF 8. NGL gas equivalent produced 0 2. Lease Use MCF 9. Purchased gas 0 3. Conserv. Purposes MCF 10. Transferred from: 0 Commissioner Date 11. Transferred to: CCP 23,092,411 Note: All volumes must be corrected to Remarks: pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is true and correct to the best of my knowledge. ~, / Signature: ~ ~ln-u~--~ Title: SUPERVISOR month following the month of disposition. Authority 20 AAC 25.235. Form 10-422 (Revised 4/95) 08-00 FORM 10-422.x1s/FORM 10-422 BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC-3 - GAS FLARING INCIDENT REPORT - AUGUST, 2000 Un lanned Events less than ore ual to 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 8/12!2000 2258-2300 62 Not required for unplanned events which Not required for unplanned events which 8/15/2000 2200-2215 139 are less than or equal to 1 hour are less than or equal to 1 hour 8/16/2000 0825-0838 90 8!16/2000 1040-1126 256 8/17/2000 0746-0811 191 8/17/2000 1310-1415 intermittent 106 8/18/2000 1327-1348 175 8/19/2000 0740-0838 308 8/20/2000 1906-1909 21 8/22/2000 1012-1235 intermitent 214 8/23/2000 1300-1310 14 8/27/2000 0145-0149 69 8/29/2000 0650-0654 14 8/29/2000 1228-1234 21 8/31/2000 1443-1447 6 TOTAL 1,686 Un lanned Events rester than 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 8/22/2000 2104-2400 514 See Attachments See Attachments 8123!2000 0001-1310 1,051 See Attachments See Attachments 8/23/2000 2145-2400 169 See Attachments See Attachments 8/24!2000 0001-2400 7,884 See Attachments See Attachments 8/25/2000 0001-1128 2,767 See Attachments See Attachments TOTAL 12,385 Planned Events Less Than or E ual 1 Hour AND Not Exceedin 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 Planned Events Exceedin 1 Hour OR Exceedin 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 TOTAL Unplanned Events c i Hour .1.686 Unplanned Events > 1 Hour 12,385 Planned Events c 1 hour 8c not 0 exceeding 5,000 MCF Planned Events > 1 hour and 0 exceeding 5,000 MCF PI{ot Purge 99.657 Page 1 REPORT NO: 00-0232 FACILITY: GC-3 SYSTEM 1. Flare/Relief Valve 2. Flare/Relief Valve BPXA FLARE REPORT PRUDHOE BAY DATE: 22 Aug 00 TIME OF FLARING Start Stop Duration 10:12 12:35 OHrs 28Mins 21:04 24:00 2 Hrs 56Mins Black Intermittent Smoke Planned VOLUME 0 ^ ^ 214 MSCF ^ ^ ^ 514 MSCF TOTAL VOLUME 728 MSCF First Determination of Cause: 1. High gas transit line pressures resulting from GC2 coming on production. 2. K-5500 shutdown for safe out of B slugcather. Action Taken to Stop Flaring: 1. EOA and WOA cut back chokes to reduce rates and make room for GC2 to come on line. 6 wells were choked to minimum. Approximately 100 mmscfd of gas was cut. 2. Shutdown high pressure oil systems before K-5500 shutdown.Flare was reduced to 4.6 mmscfd for 1 hour. At 2200 hrs. 8511 skim tank was shutdown reducing flare to 4.0 mmscfd. Tuesday, August 29, 2000 Page 1 of 1 REPORT NO: 00-0233 FACILITY: GC-3 SYSTEM 1. Flare/Relief Valve 2. FlarelRelief Valve 3. Flare/Relief Valve BPXA FLARE REPORT PRUDHOE BAY DATE: 23 Aug 00 TIME OF FLARING Start Stop Duration 00:01 13:10 12 Hrs 58Mins 13:00 13:10 OHrs 10Mins 21:45 24:00 2 Hrs 15Mins Black Intermittent Smoke Planned VOLUME ^ ^ ^ 1,051 MSCF ^ ~ ^ 14 MSCF ^ ^ ^ 169 MSCF TOTAL VOLUME 1,234 MSCF First Determination of Cause: 1. K-5500 shutdown for safe out of B slugcather. 2. Facility shutdown due to UPS upset. Black smoke was caused by depressuring the LP system. 3. K-5500 shutdown for safe out of B slugcather. Action Taken to Stop Flaring: 1. Shutdown high pressure oil systems before K-5500 shutdown.Flare was reduced to 4.6 mmscfd for 1 hour. At 2200 hrs on 8-22-00, 8511 skim tank was shutdown reducing flare to 4.0 mmscfd. At 0100 hrs. on 8-23-00, 8512 skim tank and the remaining produced water equipment was shut down reducing the flare to 1.8 mmscfd. All flaring ceased when GC3 shutdown due to an unrelated problem at 1259 hrs. 2. All LP wells were winged in. All HP production was shut in. Plant was shutdown and repairs were made to the power supply system. 3. Shutdown high pressure oil systems before K-5500 shutdown.Flare was reduced to 4.6 mmscfd for 1 hour. At 2200 hrs on 8-22-00, 8511 skim tank was shutdown reducing flare to 4.0 mmscfd. At 0100 hrs. on 8-23-00, 8512 skim tank and the remaining produced water equipment was shut down reducing the flare to 1.8 mmscfd. All flaring ceased when GC3 shutdown due to an unrelated problem at 1259 hrs. Restarted plant at 2145 hrs. with reduced flaring to 1.8 mmscfd. Tuesday, August 29, 2000 Page 1 of 1 REPORT NO: 00-0234 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 24 Aug 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke 1. Flare/Relief Valve 00:01 24:00 23Hrs 59Mins ^ ^ Planned VOLUME ^ 7,884 MSCF TOTAL VOLUME 7,884 MSCF First Determination of Cause: 1. K-5500 shutdown for safe out of B slugcather. Facility problems at GC3 delayed the completion of the slugcatcher on 08/24/00. The vessel had nearly been depressurized before the inadvertent plant shutdown on 08/23/00. As a result of the shutdown, the vessel filled with rich gas and had to be purged an additional four times, beginning at 0730 hrs on 08/24!00. During this purging process, facility operators were also greasing valves and establishing bleeds to try and keep the pressure off the slugcatcher. However, the gas level in the inlet piping was still too high to open the process and swing the blind. At 1800 hrs a corrosion coupon was removed and an additional bleed valve was installed. At 2100 hrs the facility began swinging the blinds. Action Taken to Stop Flaring: 1. K5500 was initially shutdown on 08/22/00 for B-slugcatcher safeout. Actions taken followed the K5500 Wet Gas Compressor Shutdown procedure, shutting down all High Pressure production into GC3 by 08/23/00, eliminating flared gas from the condensate associated with high pressure production, and reducing flared gas to approximately 1.8 mmscfd. Assist Gas at an approximate rate of 8.0 mmscfd was introduced at 0547 hrs to keep from black smoking. Thursday, August 31, 2000 Page 1 of 1 REPORT NO: 00-0238 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 25 Aug 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:01 11:28 11 Hrs 27Mins ^ ^ ^ 2,767 MSCF TOTAL VOLUME 2,767 MSCF First Determination of Cause: 1. K-5500 shutdown for safe out of B slugcather. Facility problems at GC3 delayed the completion of the slugcatcher on 08/24/00. The vessel had nearly been depressurized before the inadvertent plant shutdown on 08/23/00. As a result of the shutdown, the vessel filled with rich gas and had to be purged an additional four times, beginning at 0730 hrs on 08/24/00. During this purging process, facility operators were also greasing valves and establishing bleeds to try and keep the pressure off the slugcatcher. However, the gas level in the inlet piping was still too high to open the process and swing the blind. At 1800 hrs a corrosion coupon was removed and an additional bleed valve was installed. At 2100 hrs the facility began swinging the blinds. Action Taken to Stop Flaring: 1. K5500 was initially shutdown on 08/22/00 for B-slugcatcher safeout. Actions taken followed the K5500 Wet Gas Compressor Shutdown procedure, shutting down all High Pressure production into GC3 by 08/23/00, eliminating flared gas from the condensate associated with high pressure production, and reducing flared gas to approximately 1.8 mmscfd. Assist Gas at an approximate rate of 4..0 mmscfd was introduced at 0547 hrs to keep from black smoking. K5500 wet gas compressor was started up at 1112 hrs, and the flare assist gas was shut in at 1128 hrs. Tuesday, August 29, 2000 Page 1 of 1 ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) Month/Year of Disposition WESTERN OPERATING AREA-PBU Sep-00 Disposition *Indicate contribution of each pool to total. 1. Sold 0 Pool Name Code Percent 2. Reinjected 0 PRUDHOE 640150 100 3. Flared or vented less than 1 hour 7,893 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 3,629 5. Pilot and Purge 22,515 6. Used for lease operations 336,163 7.Other 0 ................................................................ OfficallTse:Only:=Fearing; Auttioriiation > 1:3ir. TOTAL items 1 - 7 370,200 1. Safety MCF 8. NGL gas equivalent produced 0 2. Lease Use MCF 9. Purchased gas 0 3. Conserv. Purposes MCF 10. Transferred from: 0 Commissioner llate 11. Transferred to: CCP 17,750,981 Note: All volumes must be corrected to Remarks: pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is true and correct to the best of my knowledge. ~~ ~ n /o /t Z,~~ Signature: ~~`~ ~ -~. / Title: SUPERVISOR month following the month of disposition. Authority 20 AAC 25.235. Form 10-422 (Revised 4/95) 09-00 FORM 10-422.x1s/FORM 10-422 BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC-3 GAS FLARING INCIDENT REPORT SEPTEMBER, 2000 Unplanned Events less than or equal to 1 hour DATE `TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE .ACTION TAKEN TO ELIMINATE CAUSE 9/1/2000 0420-0438 14 Not required for unplanned events which Not required for unplanned events which 9/1/2000 0631-0719 1,000 are less than or equal to 1 hour are less than or equal to 1 hour 9/1/2000 1140-1159 330 9/1/2000 1615-1632 472 9/2/2000 0939-1018 323 9/2/2000 1101-1130 63 9/7/2000 1311-1342 4,306 9!712000 2213-2223 174 9/14/2000 1643-1820 intermittent 158 9/21/2000 0156-0202 10 9/21/2000 0320-0400 181 9/25/2000 0049-0052 10 9/26/2000 0121-0148 281 9/26/2000 2051-2053 7 9/27/2000 0042-0230 intermittent 19 9/27/2000 1733-1735 7 9/28/2000 1236-1244 78 9/28/2000 1707-1710 2 9/29/2000 0049-0215 intermittent 15 9/29/2000 0705-0708 54 9/29/2000 1614-1619 35 9/30/2000 2000-2034 354 TOTAL 7,893 Unplanned Events realer than 1 hour DATE` TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN?TO ELIMINATE CAUSE 9/3/2000 0822-2359 1,671 See Attachments See Attachments 9/4/2000 0000-2157 1,646 See Attachments See Attachments 9/6/2000 0840-1127 209 See Attachments See Attachments 9/27/2000 1436-1550 103 See Attachments See Attachments TOTAL 3,629 Planned Events Less Than or Equal 1 Hour AND Not Exceeding 5000 Mcf DATE TIME 'VOLUME DESCRIPTION OF fNCIDENT & CAUSE'" ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 TOTAL Unplanned Events < 1 Hour 7,893 Unplanned Evenis> 1 Hour 3,629 Planned Events < 1 hour & noT 0 exceeding 5,000 MCF Planned Events > 1 hour and 0 exceeding 5,000 MCF Pilot Purge 27 515 TOTAL FLARED VOLUME 34,037 Page 1 REPORT NO: 00-0254 FACILITY: GC-3 SYSTEM 1. Flare/Relief Valve 2. Flare/Relief Valve 3. Flare/Relief Valve BPXA FLARE REPORT PRUDHOE BAY DATE: 03 Sep 00 TIME OF FLARING Start Stop Duration 08:22 09:22 1 Hrs OMins Black Intermittent Smoke Planned VOLUME ^ ^ ^ 208 MSCF ^ ^ ^ 550 MSCF ^ ^ ^ 249 MSCF ^ ^ ^ 664 MSCF TOTAL VOLUME 1,671 MSCF 09:22 12:25 3Hrs 3Mins 12:25 15:08 2Hrs 43Mins 4. Flare/Relief Valve 15:08 23:59 8 Hrs 51 Mins First Determination of Cause: 1. K5500 Wet Gas Compressor shutdown. 2. K5500 Wet Gas Compressor shut down. 3. K5500 Wet Gas Compressor 4. K5500 Wet Gas Compressor shut down. Action Taken to Stop Flaring: 1. Flaring commenced at a rate of 5 mmscfd while GC3 started troubleshooting the cause of the shutdown, and attempting to restart the compressor. 2. GC continuing to troubleshoot the cause of the compressor shutdown. At 0922 hrs, one of two oil skim tanks was isolated, reducing flaring to approximately 4.4 mmscf. At 1206 hrs, GC started routing all facility produced water to FS#3 and staging to eliminate all flared gas from the water handling facility. 3. At 1206 hrs, GC3 started transferring all produced water to FS#3. WOA & EOA coordinated shutting in all producing wells above 94% water cut to reduce total produced water rates being handled by FSC~3. At 1225 hrs, the second skim tank at GC3 was isolated, as well as the dirty water tank, slop tank, and the Sulzer was shut down at 1227 hrs, thus, eliminating all flared gas from the water handling facility, and reducing flared gas volumes to approximately 2.2 mmscfd. Troublshooting on the compressor determined that the seal on the compressor need replacement, thus, requiring the compressor remain shut down. Began production cuts to isolate all production from High Pressure production into GC3. Thursday, September 07, 2000 Page 1 of 2 REPORT NO: 00-0254 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 03 Sep 00 ~B`. All High Pressure production isolated from GC3 at 1508 hrs, eliminating flared gas from the condensate associated with high pressure production. Approximate flared gas volumes reduced to 1.8 mmscfd. Thursday, September 07, 2000 Page 2 of 2 REPORT NO: 00-0256 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 04 Sep 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. FlarelRelief Valve 00:00 21:57 21 Hrs 57Mins ^ ^ ^ 1,646 MSCF TOTAL VOLUME 1,646 MSCF First Determination of Cause: 1. K5500 Wet Gas Compressor shut down. Action Taken to Stop Flaring: 1. The water handling facility at GC3 remained shutdown, and all High Pressure production remained isolated from GC3 to minimize flaring to approximately 1.8 mmscfd while K5500 repairs continued. K5500 was depressured, blinded, and safed out for seal replacement throughout the morning. K5500 seal replacement was completed and started up at 2148 hrs. At 2157 hrs K5500 was released for production ramp up. Thursday, September 07, 2000 Page 1 of 1 REPORT NO: 00-0259 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 06 Sep 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 08:40 11:27 2Hrs 47Mins ^ ^ ^ 209 MSCF TOTAL VOLUME 209 MSCF First Determination of Cause: 1. 5500 Wet Gas Compressor S/D due to PLC problem. Action Taken to Stop Flaring: 1. As X-Pad was down for repairs, Water rate was cut by 96,000 BBLs and addisional action was not needed. Thursday, September 07, 2000 Page 1 of 1 REPORT NO: OO-O2$2 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 27 Sep 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:42 02:30 0 Hrs 14Mins ^ ^ ^ 19 MSCF 2. Flare/Relief Valve 14:36 15:50 1 Hrs 14Mins ^ ^ ^ 103 MSCF 3. Flare/Relief Valve 17:33 17:35 0 Hrs 2Mins ^ ^ ^ 7 MSCF TOTAL VOLUME 129 MSCF First Determination of Cause: 1. High ambient temperature swings resulted in flaring and required cuts in production. Ambient temperature increased by 2°F. 2. EOA was increasing rates faster than CGF compressors could keep up causing GC-3 to flare due to transit line pressure. 3. High ambient temperature swings resulted in flaring and required cuts in production. Ambient temperature increased by 2°F. Action Taken to Stop Flaring: 1. BPX reduced production rates and shut-in 2 wells equaling 30 mmscfd. ARCO reduced production rates and shut-in 4 wells equaling 90 mmscfd. Wells were shut-in or choked back starting at 0001 hours. 2. EOA reduced 7 wells equal to 150mmscfpd, GC-3 shut in one well and reduced chokes on 4 more wells equal to 50mmscfpd. 3. BPX reduced production rates and shut-in 2 wells equaling 25 mmscfd. ARCO reduced production rates and shut-in 6 wells equaling 55 mmscfd. Wells were shut-in or choked back starting at 17:15 hours. Thursday, September 28, 2000 Page 1 of 1 ALASKA OIL AND GAS CONSERVATION COMMISSION r FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility GATHERING CENTER 3 Operator BP EXPLORATION ALASKA Field(s) Month/Year of Disposition WESTERN OPERATING AREA-PBU Oct-00 Disposition *Indicate contribution of each pool to total. 1. Sold 0 Pool Name Code Percent 2. Reinjected 0 PRUDHOE 640150 100 3. Flared or vented less than 1 hour 8,055 4. Flared or vented greater than 1 hour (Supplemental report required--See 20 AAC 25.235) 0 5. Pilot and Purge 16,874 6. Used for lease operations 469,357 7. Other 0 ................................................................ Offieall Tse:Only:=Fiaiitig: Aufliorizati~in >: Iau .:::::::::::::::: : TOTAL items 1 - 7 494,286 1. Safety CF 8. NGL gas equivalent produced 0 2. Lease Use ~ MCF i' 9. Purchased gas 0 3. Conserv. Purposes MCF 10. Transferred from: 0 ,~,2- ~ ~~'G """'~`"'~ [~1 ~- d`•r ~~ Commissioner Date 11. Transferred to: CCP 26,882.034 Note: All volumes must be corrected to Remarks: pressure of 14.65 psia and to a temperature of 60 degrees F. Report due by the 20th of the I hereby certify that the foregoing is true and correct to the best of my knowledge. /~ ! ~/ J'a/ Ub Signature: ~ ~ ~~L ~ Title: SUPERVISOR month following the month of disposition. Authority 20 AAC 25.235. Form 10-422 (Revised 4/95) 10-00 FORM 10-422.x1s/FORM 10-422 BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC-3 GAS FLARING INCIDENT REPORT OCTOBER, 2000 Unplanned Events less than ore ual to 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT& CAUSE ACTION TAKEN TO ELIMINATE CAUSE 10/1/2000 1638-1641 4 Not required for unplanned events which Not required for unplanned events which 1012!2000 1856-1904 28 are less than or equal to 1 hour are less than or equal to 1 hour 10/2/2000 2107-2123 28 10/3/2000 0722-0724 7 10/4/2000 0837-0850 117 10/4/2000 1331-1340 200 10/5/2000 1342-1407 710 10/8/2000 0641-0646 198 10/9/2000 1336-1354 208 10/10/2000 0809-0823 4,346 10/10/2000 1404-1408 1,053 10/12/2000 2201-2223 61 10/13/2000 0240-0250 69 i0/14l2000 1330-1550 intermittent 174 10/16/2000 0134-0229 542 10/19/2000 0440-0443 10 10/21/2000 0000-0003 10 10/23/2000 0310-0316 50 10/23/2000 1855-1904 75 10/25/2000 0316-0333 165 TOTAL 8,055 Un tanned Events realer than 1 hour DATE TIME VOLUME DESCRIPTION OFiNCIDENT & CAUSE .ACTION TAKEN TO'ELIMINATECAUSE See Attachments See Attachments TOTAL 0 Planned Events Less Than or Equal 1 Hour AND Not Exceedin 5000 Mcf DATE TIME:. VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 Planned Events Exceedin 1 Hour OR Exceedin 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 TOTAL Unplanned Events < 1 Hour 8,055 Unplanned Events > 1 Hour 0 Planned Events < 1 hour & not 0 exceeding 5,000 MCF Planned Events > 1 hour and 0 exceeding 5,000 MCF Pilot Purge ]l~,ffi9 TOTAL FLARED VOLUME 24,929 Page 1 ALASKA OIL AND GAS CONSERVATION COMMISSION FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Month/Year of Disposition GATHERING CENTER 3 BP EXPLORATION ALASKA WESTERN OPERATING AREA-PBU Nov-00 Disposition 1. Sold 0 2. Reinjected 0 3. Flared or vented less than 1 hour 3,513 4. Flared or vented greater than 1 hour 0 (Supplemental report required--See 20 AAC 25.235) 5. Pilot and Purge 14,119 6. Used for lease operations 490,611 7. Other p TOTAL items 1 - 7 508,243 8. NGL gas equivalent produced ~ 0 m ~- v 9. Purchased gas Q ~' 0 ab =m n 10. Transferred from: ~ ~ ~ 1 ,! p n 11. Transferred to: CCP 3 _~' '~' 27,441,770 Remarks: ~ ~ J"~ I hereby certify that the foregoing is true and correct to the best of my knowledge. Signature: ~~~q,.~tz.~ y l ~ ~ Title: SUPERVISOR / ~g ~ Form 10-422 (Revised 4/95) *Indicate contribution of each pool to total. Pool Name Code Percent PRUDHOE 640150 100 Ot'ficial Use Onlv--Flaring Authorization > 1 hr. 1. Safety MCF 2. Lease Use ~ MCF 3. Conserv. Purposes MCF Commissioner llate t 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 following the month of disposition. Authority 20 AAC 25.235. 11-00 FORM 10-422.x1s/FORM 10-422 BP EXPLORATION (ALASKA} INC. PRUDHOE BAY UN17- GC-3 f ~ GAS FLARING INCIDENT REPORT Page 1 NOVEMBER, 2000 Un lanned Events less than ore ual to 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 11/3/2000 0832-0836 72 Not required for unplanned events which Not required for unplanned events which 11/11/2000 1722-1809 783 are less than or equal to 1 hour are less than or equal to 1 hour 11/12/2000 0732-1350 intermittent 163 11/15/2000 1853-1856 25 11/17/2000 0047-0058 138 11 /17/2000 0351-0445 300 11/18/2000 0013-0106 957 11/22/2000 1540-1544 97 11/22/2000 1848-1853 5 11/23/2000 2336-2355 66 11/24/2000 0004-0030 52 11/24/2000 1412-1420 167 11/24/2000 2103-2106 21 11/25/2000 0152-0155 21 11/25/2000 1142-1204 275 11/26/2000 1210-1214 131 11/27/2000 0415-0420 156 11 /29/2000 1611-1620 81 11/30/2000 0646-0647 3 TOTAL 3,513 Un lanned Events realer than 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT & CAUSE AGTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 Planned Events Less Than or E ual 1 Hour AND Not Exceedin 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT ~ CAUSE ACTION TAKEN TO ELIMINATE CAUSE _ See Attachments See Attachments TOTAL 0 Planned Events Exceedin 1 Hour OR Exceedin 5000 Mcf DATE TIME VOLUME DESCRIPTION OF INCIDENT do CAUSE ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 o _ ~. ~` ° Q L .a ~ v TOTA .~ Unplanned Events < 1 Hour 3,513 n° o ~ ~ ~ Unplanned Events > 1 Hour 0 Planned Events < 1 hour & not exceeding 5,000 MCF 0 3 Q' 3 Q Planned Events > 1 hour and 0 cn exceeding 5,000 MCF ~ Pllot Purge 14.114 .r..n~ n.nrn ,,..,iuec ,>AZ"~ ALASKA OIL AND GAS CONSERVATION COMMISSION i ~ FACILITY REPORT OF PRODUCED GAS DISPOSITION Facility Operator Field(s) Month/Year of Disposition GATHERING CENTER 3 BP EXPLORATION ALASKA WESTERN OPERATING AREA-PBU Dec-00 Disposition *Indicate contribution of each pool to total. 1. Sold 0 Pool Name Code Percent 2. Reinjected 0 PRUDHOE 640150 100 3. Flared or vented less than 1 hour 894 4. Flared or vented greater than 1 hour 26,337 m 0 ~ (Supplemental report required--See 20 AAC 25.235) ¢° y' 5. Pilot and Purge 19,507 o n ~ ~ ° °° 6. Used for lease operations 510,540 n '~' 3 0 7.Other 0 TOTAL items 1 - 7 557,278 8. NGL gas equivalent produced 0 °. 9. Purchased gas = ~ p., t , ,. 10. Transferred from: 0 Official Use Only--Flaring Authorisation > 1 hr. 1. Safety MCF 2. Lease Use ~ f~ MCF r'tP , ~ ;~ t` 3. Conserv. Purposes MCF Commissioner ' llate 11. Transferred to: CCP 22,693,463 Remarks: I hereby certify that the foregoingJis true and /correct to the best of my knowledge. Signature: ~j~`-~~~L(,.Y~--~ Title: SUPERVISOR Form 10-422 (Revised 4/950/ must be corrected to pressure of 14.65 psis and to a temperature of 60 degrees F. Report due by the 20th of the month following the month of disposition. Authority 20 AAC 25.235. 12-00 FORM 10-422.x1s/FORM 10-422 BP EXPLORATION (ALASKA) INC. PRUDHOE BAY UNIT - GC3 -- GAS FLARING INCIDENT REPORT DECEMBER, 2000 Page 1 Unplanned Events less than or equal to 1 hour DATE TIME VOLUME DESCRIPTION OF INCIDENT &'CAUSE ACTION TAKEN TO ELIMINATE CAUSE 12/4/2000 1804-1834 479 Not required for unplanned events which Not required for unplanned events which 12/8/2000 1546-1553 19 are less than or equal to 1 hour are less than or equal to 1 hour 12/9/2000 1632-1638 25 12/28/2000 1441-1535 184 12/29/2000 1041-1052 37 12/30/2000 0910-0928 150 TOTAL 894 Unplanned Events greater than 1 hour DATE TIME VOLUME DESCRIPTION OFINCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE 12/12/2000 0748-0954 350 See Attachments See Attachments 12/13/2000 1130-2400 1,430 See Attachments See Attachments 12/14/2000 0000-2400 1,800 See Attachments See Attachments 12/15/2000 0000-2400 1,800 See Attachments See Attachments ~ ~ 12/16/2000 0000-2400 1,800 See Attachments See Attachments m 12/17/2000 0000-2400 1,800 See Attachments See Attachments ~ t_.. ,.~,x, 12/18/2000 0000-2400 1,800 See Attachments See Attachments ~ Z ~~ v 12/19/2000 0000-2400 1,800 See Attachments See Attachments ~ 12/20/2000 0000-2400 1,800 See Attachments See Attachments ~ ~ ,may 12/21/2000 0000-2400 1,800 See Attachments See Attachments ~ ~ ~ ~ 12/22/2000 0000-2400 1,800 See Attachments See Attachments ~ rv ~~ 12/23/2000 0000-2400 1,800 See Attachments See Attachments ~ o 12/29/2000 0502-0904 823 See Attachments See Attachments 12/30/2000 0716-2400 3,486 See Attachments See Attachments ° 12/31/2000 0225-2400 2,248 See Attachments See Attachments TOTAL 26,337 Planned Events Less Than or Equal 1 Hour AND Not Exceeding 5000 Mcf DATE TIME VOLUME DESCRIPTION OFiNCIDENT & CAUSE ACTION TAKEN TO'ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 Planned Events Exceeding 1 Hour OR Exceeding 5000 Mcf DATE TIME VOLUME `DESCRIPTION OF INCIDENT & CAUSE ACTION TAKEN TO ELIMINATE CAUSE See Attachments See Attachments TOTAL 0 TOTAL Unplanned Events < 1 Hour 894 Unplanned Events > 1 Hour 26,337 Planned Events < 1 hour & not 0 exceeding 5,000 MCF Planned Events > 1 hour and 0 exceeding 5,000 MCF Pilot Purge 19 5O7 TOTAL FLARED VOLUME 46.738 REPORT NO: 00-0365 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 12 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 07:48 09:54 2 Hrs 6Mins ^ ^ ^ 350 MSCF TOTAL VOLUME 350 MSCF First Determination of Cause: 1. Master Plant Shutdown occurred, causing all associated well pads to shutdown, both LP Compressors S/D as well and the laekage to slugcatchers resulted in extended flaring. Action Taken to Stop Flaring: 1. Equipment was restarted at 0954 hours. ~~~~ SAN ~ 8 1001 Alaska Oii & Gas ions. Anchorage ~ommissior, Monday, December 18, 2000 Page 1 of 1 REPORT NO: 00-0368 FACILITY: GC-3 SYSTEM 1. Flare/Relief Valve 2. Flare/Relief Valve 3. Flare/Relief Valve 4. Flare/Relief Valve BPXA FLARE REPORT PRUDHOE BAY DATE: 13 Dec 00 TIME OF FLARING Start Stop Duration 11:30 12:30 1 Hrs OMins 12:30 15:30 3Hrs OMins 15:30 18:30 3Hrs OMins 18:30 24:00 5 Hrs 30Mins Black Intermittent Smoke Planned VOLUME ^ ^ ^ 204 MSCF ^ ^ ^ 538 MSCF ^ ^ ^ 275 MSCF ^ ^ ^ 413 MSCF TOTAL VOLUME 1,430 MSCF First Determination of Cause: 1. K-5500 S/D. Compressor bearing failure. 2. K-5500 S/D. Compressor bearing failure. 3. K-5500 S/D. Compressor bearing failure. ~~~~ 4. K-5500 S/D. Compressor bearing failure. JAN ~ 8 201 Alaska Url & Gas Cons. Action Taken to Stop Flaring: Anchorage COm~'ssion 1. Procedure for S/D implemented. 2. Went to 1 skim tank operation. Cut 25 wells for approximate rate cut of 61 mbwpd. H2O cuts were made deeper than required to prepare for the 4 hr. procedural deadline of no H2O handling at the facility. 3. Procedure followed went to no H2O handling operation. An additional 14 wells cut for a total reduction of 98 mbwpd.. 4. Eliminated all HP production to the GC by 1700 hrs in advance of the 1830 time constraint. Wells were moved to the GC-1 Annex or SI. Freeze protection on the flowlines being maintained by cycling annex wells through all flowlines to the GC test separator (in LP mode with the pressure controller at 500 psi) to A SC. Monday, December 18, 2000 Page 1 of 1 REPORT NO: 00-0369 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 14 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 24:00 24 Hrs 0 Mins ^ ^ ^ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. K-5500 SD. Compressor bearing failure. Action Taken to Stop Flaring: 1. All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow all skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement. ~~~~~ ~ Alaska .JAN ~ 8 Zp~1 Ori & has Cons. Annh~a9e Com'~~ssior, Monday, December 18, 2000 Page 1 of 1 REPORT NO: 00-0370 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 15 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 24:00 24 Hrs 0 Mins ^ ^ ^ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. K-5500 SD. Compressor bearing failure. Action Taken to Stop Flaring: 1. All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow all skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement. e \ ~~ ~.1 Al~ka . JAN ~ ~ 2pD~ ~// 'gnCh ~@ C~ryl/IlISSIpn Monday, December 18, 2000 Page 1 of 1 REPORT NO: 00-0371 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 16 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 24:00 24 Hrs 0 Mins ^ ^ ^ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. K-5500 SD. Compressor bearing failure. Action Taken to Stop Flaring: 1. All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow all skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement V Alaska ~ JAN ~ 8 201 Oil &pn~~ aka ~ommissinr Monday, December 18, 2000 Page 1 of 1 REPORT NO: 00-0372 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 17 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 24:00 24Hrs OMins ^ ^ ~ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. K-5500 SD. Compressor bearing failure. Action Taken to Stop Flaring: 1. All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow all skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement ~~~~$~ 1 SAN .T 8 2001 Alaska Oil & Gas Cons. Anchorage commission Monday, December 18, 2000 Page 1 of 1 REPORT NO: 00-0373 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 18 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 24:00 24 Hrs 0 Mins ^ ^ ^ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. K-5500 SD. Compressor bearing failure. Action Taken to Stop Flaring: 1. K-5500 SD. Compressor bearing failure.All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow all skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement R~~C 1 JAN 1 8 2001 Alaska Oil & Gas Cans, Anchorage COm~ission Wednesday, December 20, 2000 Page 1 of 1 REPORT NO: 00-0374 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 19 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 24:00 24 Hrs OMins ^ ^ ^ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. K-5500 SD. Compressor bearing failure. Action Taken to Stop Flaring: 1. All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow oil skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via the tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement. T ~~~ ~~~ JAN ~ 8 20n1 Alaska pit & Sas Anchoragoe ~0mmission Wednesday, December 20, 2000 Page 1 of 1 REPORT NO: 00-0375 FACILITY: GC-3 SYSTEM 1. Flare/Relief Valve BPXA FLARE REPORT PRUDHOE BAY DATE: 20 Dec 00 TIME OF FLARING Start Stop Duration 00:00 24:00 24Hrs OMins Black Intermittent Smoke Planned VOLUME First Determination of Cause: 1. K-5500 SD. Compressor bearing failure. ^ ^ ~ 1,800 MSCF TOTAL VOLUME 1,800 MSCF Action Taken to Stop Flaring: 1. All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow oil skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via the tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement. ~~ ~~ ~~ /n . Alaska Cil~g ~ ~ ~0~ J qn~o ~~s. C~Rtissi ar, Thursday, December 21, 2000 Page 1 of 1 REPORT NO: 00-0376 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 21 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 24:00 24 Hrs 0 Mins ^ ^ ^ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. K-5500 SD. Compressor bearing failure. Action Taken to Stop Flaring: 1. All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow oil skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via the tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement. ~~~~~~~~ JAN 1 g 2001 Alaska Oit & Gas Cons. Commission Anchorage Wednesday, December 27, 2000 Page 1 of 1 REPORT NO: OO-O37H BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 22 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME lereJfieiief~/~ve --6-Tlra-~;om~s ~' B B---vbFBEf ~ ~~. Flare/Relief Valve 00:00 24:00 24Hrs OMins ^ ^ ^ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. K-5500 SD. Compressor bearing failure. Action Taken to Stop Flaring: 1. All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow oil skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via the tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement. ~~~.~,, A~dskd JAN 1 ~, ~`~ '~.,~, ~i/ /,/1 ~Gds~ -~ -4n~hora98 ~~~m~ss~o~ Wednesday, December 27, 2000 Page 1 of 1 REPORT NO: ~~-0384 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 23 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 00:00 23:59 24Hrs OMins ^ ^ ~ 1,800 MSCF TOTAL VOLUME 1,800 MSCF First Determination of Cause: 1. K-5500 bearing failure Action Taken to Stop Flaring: 1. All HP production to GC-3 has been suspended. H2O production to the GC has been reduced to allow oil skim tanks to be taken out of service. Remaining H2O is being routed to FS-3 via the tie line. Operations Manager notified of operational conditions prior to the 24 hr. procedural requirement. ~~~~p Alaska , JAN ~ ~ ~~~ ~ C3i! ~ has C° An~hora9e ~0mmission Tuesday, January 02, 2001 Page 1 of 1 REPORT NO: 00-0383 BPXA FLARE .REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 29 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke 1. Flare/Relief Valve 05:02 09:04 4Hrs 2Mins ^ ^ 2. Flare/Relief Valve 10:41 10:52 0 Hrs 11 Mins ^ ^ Planned TOTAL VOLUME First Determination of Cause: 1. Problem associated with K-5500 wet gas compressor shutting down on vibration. 2. Problem associated with K-5500 wet gas compressor shutting down on vibration. VOLUME 823 MSCF 37 MSCF 860 MSCF Action Taken to Stop Flaring: 1. Flaring was permitted to continue while GC operations personnel attempted to restart K-5500. 2. Flaring was permitted to continue while GC operations personnel attempted to restart K-5500. ~~~Ei ~~~ /qN ~ qi~~a Oi/& Gas 8.2p~~ '~nChora9e GOm~ission Tuesday, January 02, 2001 Page 1 of 1 REPORT NO: ~~-0386 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 30 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 07:16 24:00 16Hrs 44Mins ^ ^ ~ 3,486 MSCF 2. Flare/Relief Valve 09:10 09:28 0 Hrs 18 Mins 0 ^ ^ 150 MSCF TOTAL VOLUME 3,636 MSCF First Determination of Cause: 1. K-5500 wet gas compressor shut down due to the slide valve failure, and high tube .oil differential. 2. High gas transit line pressure caused by CCP compressor, Refrig unit #1806. Action Taken to Stop Flaring: 1. High water cut wells on A and X pads, reduced to minimum chokes. Equal to 30 wells, to minimize skim tank operation. 2. BPX reduced production rates and shut-in 40 mmscfd. ARCO reduced production rates and shut-in 300 mmscfd. Wells were shut-in or choked back starting at 07:26 hours. ' 1 ~~~ ~~~ JAN 1 ~' ;~itr;j Alaska Oil & Oa Anoh ale ~omrtrissior,• Tuesday, January 02, 2001 Page 1 of 1 REPORT NO: OO-0388 BPXA FLARE REPORT PRUDHOE BAY FACILITY: GC-3 DATE: 31 Dec 00 TIME OF FLARING Black SYSTEM Start Stop Duration Intermittent Smoke Planned VOLUME 1. Flare/Relief Valve 02:25 24:00 21 Hrs 35Mins ^ ^ ~ 2,248 MSCF TOTAL VOLUME 2,248 MSCF First Determination of Cause: 1. K-5500 wet gas compressor shut down due to the slide valve failure, and high lube oil differential. Action Taken to Stop Flaring: 1. Water rates reduced to 50K, produced water system shut down to reduce Ip flaring. 12:33 (ambient temp -17, wind chill -65) PWX system was started at min rate in attempt to keep water injectors warm. The lube oil system is being completely over-hauled, and the slide-valve repaired. R;~~~ l V SAN ~ 8 zoos Aiaska Oil & Gas Cons. Anchorage Commission Tuesday, January 02, 2001 Page 1 of 1 BP EXPLORATION Date: February 24, 1999 Ms. Wendy Mahan Alaska Oil and Gas Conservation Commission 3001 Porcupine Drive Anchorage, Alaska 99501-3192 Subject: GC3 Flare Event Reporting ~~~s-~.~ BP Exploration (Alaska) Inc. 900 East Benson Boulevard P.O. Box 196612 Anchorage, Alaska 99519-6612 (907) 561-5111 fi; ~a: Dear Ms. Mahan, In response to your request for additional discussion regarding recent GC3 flaring events, BP Exploration (Alaska), Inc. would like to present the following information. The K-5500 Wet Gas Compressor at Gathering Center 3 compresses gases gathered in the tank sweep and gas stripping processes. The compressed gas volumes handled by K-5500 are relatively small, generally 2-4 MMSCFD. In each of the questioned situations when the compressor shut down, BPX managed actions to minimize impacts to the environment while operating equipment safely and maintaining plant integrity. In some of the events BPX chose to continue flaring to avoid unplanned full plant shutdowns where flared gas volumes would have been much higher. It is not possible to accurately predict the volume of gas that would be flared in an unplanned full plant shutdown because each situation is unique. However, history demonstrates that several planned and unplanned GC-3 shutdowns during 1997 and 1998 resulted in flaring in excess of 10 MMSCF per event. Further information specific to the events in question is provided. below: • As you are aware from previous conversations with BPX North Slope personnel, when the K5500 wet gas compressor at GC3 is off line the only available option to stop flaring is a complete plant shut down. This is a similar situation to shut down of the IP/LP compressors at GC's 1 and 2. it has been our philosophy that prudent operating practices necessitate flaring small volumes of gas for extended periods of time rather taking the plants to full shut down status. The AOGCC has been supportive of this philosophy in the past. • In the event that a plant is already shut down and the situation of being unable to start K5500 (or the IP/LP compressors) exists, the plant remains shut down until the unit can be restarted. Evidence of this occurred following the 9/98 TAPS event, when GC3 remained completely shut down for 36 hours after its initial restart attempt due to the status of the K5500 compressor. • During the December 13-15, 1998 flaring event HP gas production at GC3 was shut into reduce flare volumes. LP production was allowed to continue to avoid a complete plant shut down and to maintain flow from higher water cut wells which would otherwise have to be freeze protected. • 1n September, 1998, facility optimization modifications were completed at GC3. One of the modifications was installation of the K5500 wet gas compressor. This compressor is both new technology and the only one of its type operating on the North Slope. As such this compressor would be considered to be operating in a start-up or commissioning mode for the first few months of operation. Our proficiency operating K5500 has improved such that there has only been one shut down in 1999, due to loss of a vent gas blower (part of the facility's produced water system), and a successful restart was accomplished on the first attempt. • K5500 logic controls only allow 2 restart attempts per hour. This prolongs the restart process during a troubleshooting scenario when the exact cause of restart failures is being determined. These controls and limitations are in place to protect the machine from damage due to over heating the drive motor. .~" ,~ Page Two Alaska Oil and Gas Conservation Commission • During the events in question, BPX brought all available resources together to resolve the situations. These resources included operations personnel, I&E, controls and turbine technicians, process and rotating equipment engineers, and vendor support from the manufacturer, Toromont Process Systems. BPX takes very seriously its responsibility to act as prudent operators with respect to the safety of its personnel, equipment and the environment. We are also very aware of the stewardship we hold over the resources of the State of Alaska and make every effort to conserve those resources. Sincerely, ~~ ~~,- Kelly Eager Production Optimization Team Leader 9 ~ .. ..~ s V. •. Sr ~. GC-3, K-5500 S/D Subject: GC-3, K-5500 S/D Date: Wed, 13 Dec 2000 16:21:48 -0600 From: "PBU, Prod Opt TL" <PBUProdOptTL@bp.com> To: "'wendy_mahan@admin.state.ak.us"' <wendy_mahan@admin.state.ak.us> CC: "Wegemer, Kriss D" <WegemeKD@bp.com> Wendy, This note is to inform you of a flaring episode @ GC3 related to K-5500 (wet gas compressor) problems today. It also confirms our phone conversation from a few minutes ago. > ~t l.l3t~ lar°s v~~t 12/I3/r(), .~.' SS(~CJ til%as shtct dv~~%n clue tv hearit7~,T~?rvhlems. > ~~%ent tv fi'are cvincidentall~.%. ~~:'-3 > ~~>ill install a spexrE~ hurtdle that tdze~' I~LxVC~ vr~ 12~nd. ~iE? esti~natecl ti,~~c tv > t°eplace tdae hundle is 3 tv 4 days. ;/his r~zaclaine > Pulls vapors frvrn the water Dandling e~Iuip~tent anal frvn7 the condensate > recove~~% vessel. C?air shut dv~vr~~ ~a~°vc:ecl2.~re dunes > a sched~.~le to ht°i~~ag down the crffectedPar°ts c?f GC-3 to add~~°es,s cv~npliance > x%it1~, f laying ~°egulcxtrvns. According to the procedure, at a shut down duration of 1 hr, GC-3 production will be managed so that the plant is operating > vn one o~ f `its two s~.:i~~n t~xnl~s. Zdie plar~zt is operating vr~ one skim tcrr~z at > this tarrte. :The estrxt~ated flare rate i,s ~.3 ~~nr~ascfcl. > after ~ hrs of clv~wvntrr~e, CSC`-3 watEJ~° ~rvcluc:t~'vn is tv l~c~ reduced to S0 rn1~d > and that is tv he dives°ted to ~~SY-3. die > iz~7tentivn is tv reduce flare rate to ~ 2.2 ~nnr.:~cf~.~. ~s they hcxve a %cxter > 1acu~zdling;ozxr~~~~ dviv~~z at tlZi>~ tune, P'AS`-3 is not in > a po.sitivn to accept that anzvunt of water. ~s a. rest€lt., ~-ve -~i~ill hcr~te n~vre > 1~~cxter and assvciated oil production shut in cxt G~`3.. ~1 t ;~ hours SID duratiara, all IMP prvductian into C-3 is tv ~e shut i~~i tv > rernvve tl~c vapors assvciated ~~~ith the HP > cctr~zclcn>~ate,~i°vrn the flare str°ecx~n. 7hi.s should ~°cd~.cce.fla~°e ~~°atcs try ~-,1.~~ > rramscfd. This would resarlt in having to f .eeze > protect all of the .~P well lines ancz'~ flv~~' l~~'3E~5~ cv~ning inty the ~alant. > This is a costly arzd tin~ae cvrzsunzing exercise, lrut rnvst importantly it presents some safety concerns if freeze protection is not achieved on each and every well and line. We're looking into any potential options which would allow us to keep the test bank in HP service. One option is to shut in A, B, C, and D > ~P han~:.~ and cl7v~:e hack- all of °tlie P ~%elCs. If the test dank were > available, we cva.~ld c:~y=c.:le all of the flv~v lrnc~s tl~rvugl~ it; 1 of 2 12/13/001:45 PM GC-3, K-5500 S/D .. L > r.~n n~irzir~~tur~7,flow, to cave}ic:~.~•eezin~ the lines. I'll follow up with you again soon. Jim Ierubino GPB Production Optimization Team Leader 907-659-5566 2 of 2 12/13/001:45 PM Re: [Fwd: GC-3, K-5500 S/D] Subject: Re: [Fwd: GC-3, K-5500 S/D] Date: Wed, 13 Dec 2000 16:30:18 -0900 From: Julie Heusser <julie_heusser@admin.state.ak.us> To: Wendy Mahan <Wendy_Mahan@admin.state.ak.us> CC: Dan Seamount <dan_seamount@admin.state.ak.us>, Camille Oechsli <cammy_oechsli@admin.state.ak.us>, Tom Maunder <tom maunder@admin.state.ak.us> Thanks for the heads up Wendy, Did Jim elaborate on just how much more "slightly" means with respect to the additional volume of gas to be flared? On the surface of things, their request appears to be reasonable. I agree that freeze protection of the HP lines is a costly process, however, it is not clear to me what the safety concerns are around being able to achieve a freeze protect on each and every HP well. Are they saying they have leaking valves that would prevent an adequate freeze protect on all HP lines/wells? It's not clear to me that we have heard the entire story from Jim. Cammy, Dan, et al -FYI this is a loaded question for BP. BP already knows that many of these valves leak.... Whenever the field goes into an extended shutdown in the, this is when the operator figures out that many of their valves are leaking....valves that they would not routinely test or verify were capable of sealing. If the valves leak, then their FP is shot and it is a pretty expensive and time consuming operation to use impedence heat to thaw flowlines. However, waste is waste.... Cammy, Dan, Wendy, Tom -Are we establishing new precedence here by granting this approval or have we already agreed to something of this nature before? Julie Wendy Mahan wrote: > .lean and Jz~lie, > I°Il be out of tl~e office this after^navn and toanvrrow ~no~^ning ancCl > thought Carnn2an~r ~-vas, too..... > Jr`n~ Icy^ubino called a w~iilc ago a~oc~t a.flaring e~~ent c:ct CT~'3 t~~c~t°s > expected to take the°ce davFs. 71~~,?~.% hav~;~ to ~•cJplacc the I~z~~~adl~.7 in tlae > .~~-SS~1b' vet gas cornpre~ssor, ~e said t/aey can °t follotiv the nor~aal proced~.r3^e {Which is in a file at the othet^ office) because the~~ ~~ill > have to freeze protect all well cznd flow lines co}~ni~~~g in to the .SIP > s~.rstem. ~e asked if'they could choke back the wells to inin~au~t~ > ~~roe:luction and go fi~orrr tlaere. I told Iair~~ to .read can email and I°d > discus,s it ~vit12 the ~`otnmis.sioners, Kiev will flare slightly more this 1 of 3 12/14/0012:54 PM Re: [Fwd: GC-3, K-5500 S/D] > w~~%, but a~roid a lr.~t rz, f extra ~vot~•k. zat do yr~zc think;? > 'enc~y > > .~ate.° ~ec~, 13 .Z~ec ?~(~(3 ~6:21:4b' -C)60~ > ~'ror~z: `°PI~LT, ~f•od t?pt ~," <~'BU~roclC~ptTLi'u~l~p.corn> > Tr>; rrrwend].% TnLthat~z~t1.1,LdG~1't21Y2.stat~.a~G;Zlsrrr~~v~~nd~,f tnahanri~czca't~nit~.,statc.al~.zts> > ~,~~. rr~egeYtzer, Krtss Z)`r ~ ~~'egenzel~(a.lrp.com> > Tlzrs note is tr> inform ~%ou of a, flaritzg episode (a1 GC.~ r°elate1d to --.~S~t~ (vet > ga.s cornpr°essor) prol~letns today. 1t also con~r°tns > our phone conversation ftsotn a fLw rninutes~ ago. > > ~4t 11311 firs on 12113I(~(1, Is-55~~ was shzrt do~l%n dare to hearing pr°o~letns. > > went to~lare coincidentally. ~~-3 > > ~-vill install a share bz~rzdle that they have on hand ~J e.5tin~zated tirtze to > > replace the hutzdle is ~ to 4 dad.%s. This machine > > pztlls ~tapors frvtrz the ~-vat~r handling equiprz~ent arzd frc~n~z tlae c°onrler~sate > > recover~.7 vessel. Cur shut down pr°ocedure defines > > a schedule to firing down the af~ectedparts r?f G'C7-3 to adr~ress compliance > > tivith~laring regrzlations~. > ~ccordirzg to t1~e procedure, at. a sltzrt down duration o~'1 hr, ~~~'-3 pt°oclzcctic~n > will he n~arzagecl so that the ~lcznt is operatit~zg > on one o, f its ttivo skim tans. The platat is operating ota one s itn tank at > > this tune. The estimated yf lare rate is 4.3 rnnzsc~d. > > 1~~ f ter 4 lti~°s o~ do~vnt. tme, t~~'-3 tivater production as to be reda~cecl to ~ () toted > > and thcxt is to he diverted to .~'S-3. ~?e > > itztetztion is to recluce,flare rate tra ~- 2. ~ tnmscfcl ~.~ tlz~~.s lzav~, rz -~vcttet,. > > handling pun~zp down at this time, FS--3 is taot in > > a position to accept that ara~oztrzt o~ f `~vater~. ~s a resazlt, ~.>e ~~%ill hcrti9e mare > > ~-vczter and as>sociated oil l~roductiorz shut in czt UC'.~.. > > 1~t 7 hoz.$r's S/L) dcrrc~tion, all Hl' produc:tictn into Cs~'-3 is to be shztt i~z to > > retno~re the vapors associated with the ,~~,~ > condensate from the flare stream. ~zis should reduce~Zare rates to N1.~ > > nztnscfca? This would reszrlt rz having to, freeze 12/14/00 12:54 PM 2 of 3 Re: [Fwd: GC-3, K-5500 S/D] > > P~°otect all of t~rc ~~P ~~=cll lines cand.~lo~~= lines c~~~ing int~a td~e,olrznt. > > I'l~i,~ is a costly and ti€ne consa.raning e~:ercise, ~7.ct most > importantly it presents sor~ae sa~e~ concerns af, freeze protection is not ac:dzieved ran each and eve~~.r ~~~=ell and li~~ze. T~'re lcaokit~tg > ia~to any patential options wltieh world allow us to keep the test l.~aaak in B > se~^~=ice. dne option is' to sh~.rt ire ~, B, C, and ~? > > P banks crud c°laoke back all of flee IMP ~~lells. If' the test bank ~~=ere > > available, we co~~ld cycle all of the flotiti~ lines the°ough il, > > on minimum-#lo~t}, to avoid freezing the lines. > I'll follow up with you again soon. > .ling Ier°ubino > UBB Production ~ptimizatio~a Ieatn deader > ~~17-X59-.556 12/14/00 12:54 PM 3 of 3 K5500 Update: 12/14/00 Subject: K5500 Update: 12/14/00 Date: Thu, 14 Dec 2000 11:03:07 -0600 From: "PBU, Prod Opt TL" <PBUProdOptTL@BP.com> To: "'Wendy Mahan"' <Wendy_Mahan@admin.state.ak.us> Chronology At 1130 on 12/13, K-5500 (wet gas compressor) S/D down at GC-3. We flared ~4.4 MMCFD at that time. The machine had failed bearings and seals. GC-3 will install a spare bundle that they have on hand. The estimated S/D time is 3 to 4 days. This machine pulls vapors from the water handling equipment and from the HP condensate recovery vessel. Our S/D procedure defines a schedule to bring down the affected parts of GC-3 to address compliance with AOGCC flaring regulations. JVI called in flaring event to Wendy Mahan @ AOGCC 12:50 PM 12/13. JVI sent email to Wendy @ AOGCC 1:10 PM 12/13. According to the procedure, at a S/D duration of 1 hr, GC-3 production was to be managed so that the plant operates on one of its two skim tanks. The plant was already only operating on one skim tank. The estimated flare rate was still ~4.4 MMCFD. After 4 hrs of downtime, GC-3 water production was to be reduced to 50 MBWPD and diverted to FS-3. The intention is to reduce flare rate to +/- 2.2 MMCFD. As FS3 had a water pump down at this time, we were only able to send ~25 MBWF~D to FS-3. FS-3 hopes to have pump 15-189 up today, which will increase water handling capability from GC-3. At 7 hours S/D duration, all HP production into GC-3 was to be S/I to remove the vapors associated with the HP condensate recovery vessel going to flare. This would reduce flare rates to +/- 1.8 MMCFD. All HP banks were S/I and wells were choked back to minimum flow, then cycled through the test bank and a pressure control valve into the LP system. This eliminated HP vapors going to the condensate recovery vessel and flare. JVI notiifed AOGCC again 12/14 AM via email with estimated flaring volumes and durations. After 24 hours in this operating mode, the procedure requires review the Operations Manager. 1 of 1 12/14/0012:54 PM RE: [Fwd: past GC3 K5500 flaring events] Subject: RE: [Fwd: past GC3 K5500 flaring events] Date: Thu, 14 Dec 2000 15:34:48 -0000 From: "PBU, Prod Opt TL" <PBUProdOptTL@BP.com> To: "'Wendy Mahan"' <Wendy_Mahan@admin.state.ak.us> Thanks Wendy. I certainly hope you were able to cut and paste, rather than type it all in. I thought you also referred to an extended K5500 related even 3/29/00. In any case, I'll send you an update with flare volumes and durations today. ----Original Message----- From: Wendy Mahan [mailto•WendX Mahan(cr~admin.state.ak.us] Sent: Wednesday, December 13, 2000 1:28 PM To: PBU, Prod Opt TL Subject: [Fwd: past GC3 K5500 flaring events] 12/14/0012:54 PM lofl Re: Thoughts on Flaring Subject: Re: Thoughts on Flaring Date: Thu, 14 Dec 2000 08:21:57 -0900 From: "Dan T. Seamount" <Dan Seamount@admin.state.ak.us> Organization: doa-aogcc To: Julie Heusser <juke_heusser@admin.state.ak.us> CC: Wendy D Mahan <wendy_mahan@admin.state.ak.us>, Camille Oechsli <cammy_oechsli@admin.state.ak.us> lets talk when everyone is healed and un-damaged. Julie Heusser wrote: > .c~Iornirtg .All, > I ttaay have been c~ bat harsh r°e I3P's request to flare additac,~nal > gas... there is more than one thing going on to prevent tlaen~a ~~°om > proceeding an normal (i. e. -they can°t ship to ~'S3;). ~f'it has been > our ~•cz~°tise to c.onsc,~~t try a recl~.~est like tlzi.~, I ~voulcl lie willing to > go along with at again than time. > ~'~~ leakan~>~~ div~prt valves al~~%ays present a problertz durang a shut dc~~vta. > 1 ~.~~o~tld be ~~~allang to bet that every pad has at least several that > leak. ~t'n a common problem that makes an operator net~.~o2.cs r~~~heiz the > pe3s.5abilah% of a frozen,flo~vlane exacts. > ~ have a few phalonophrccrl questions with regarL~s to o2tr charge" to > pre~Jent avaste. > ~ Rjhat Iran been oar 1~andlang ~f's~it~aalar requests an the pa.~t~ * l.~ca ~~.~e have clear° ideas a.s to what volun~te of flat°ia~g dc~ ~-~~e => consider it wasteful and ~%e would tape action:' C)ne daft:' ~iree > day4° `~ one meek? Cane ~'l~lontlz' . > ~° If we have guidelr.'nes, lao~~.~ were th~v developed? > * Sho~sld it be oztr polacj% to routinelj% agree to rer~ests, for > acldatar~t~al flat~•an~~~ becau.~e at snakes caperataons/repair cai~ertztic>n.~ :- easier for the operator? Cdr should at be on a special needs > basin:' Are there at~~.%. flaring satuataons that aa~totnatac'ally send up a red > flag for un ~ ~' Shoa.~ld we add the clevelopna~nt of ftarang guadelanen/volun~ten to > the AC~~~C'C pr°oject last? > ~nquaring minds want to know ..... 1 of 2 12/14/0012:54 PM Re: Thoughts on Flaring > I•,~nla~ }~c~u call l~rav~ a gra~cl u'ay =~ C~ieer°s > =lirlr~ 2 of 2 12/14/00 12:54 PM FW: K5500 Update: 12/14/00 Subject: FW: K5500 Update: 12/14/00 Date: Thu, 14 Dec 2000 20:20:32 -0000 From: "PBU, Prod Opt TL" <PBUProdOptTL@BP.com> To: "'Wendy Mahan"' <Wendy_Mahan@admin.state.ak.us> I'm under the impression the my responsibility in this matter is to inform you, follow the established S/D procedure, ensure monthly flare dispostion and supplement info is submitted. I'm not under the impression that I need written or verbal approval to flare for >24 hours. Is this correct? Chronology At 1130 on 12/13, K-5500 (wet gas compressor) S/D down at GC-3. We flared ~4.4 MMCFD at that time. The machine had failed bearings and seals. GC-3 will install a spare bundle that they have on hand. The estimated S/D time is 3 to 4 days. This machine pulls vapors from the water handling equipment and from the HP condensate recovery vessel. Our S/D procedure defines a schedule to bring down the affected parts of GC-3 to address compliance with AOGCC flaring regulations. JVI called in flaring event to Wendy Mahan @ AOGCC 12:50 PM 12/13. JVI sent email to Wendy @ AOGCC 1:10 PM 12/13. According to the procedure, at a S/D duration of 1 hr, GC-3 production was to be managed so that the plant operates on one of its two skim tanks. The plant was already only operating on one skim tank. The estimated flare rate was still ~4.4 MMCFD. After 4 hrs of downtime, GC-3 water production was to be reduced to 50 MBWPD and diverted to FS-3. The intention is to reduce flare rate to +/- 2.2 MMCFD. As FS3 had a water pump down at this time, we were only able to send ~25 MBWPD to FS-3. FS-3 hopes to have pump 15-189 up today, which will increase water handling capability from GC-3. At 7 hours S/D duration, all HP production into GC-3 was to be S/I to remove the vapors associated with the HP condensate recovery vessel going to flare. This would reduce flare rates to +/- 1.8 MMCFD. All HP banks were S/I and wells were choked back to minimum flow, then cycled through the test bank and a pressure control valve into the LP system. This eliminated HP vapors going to the condensate recovery vessel and flare. JVI notiifed AOGCC again 12/14 AM via email with estimated flaring volumes and durations. 1 of 2 12/14/00 12:55 PM FW: K5500 Update: 12/14/00 After 24 hours in this operating mode, the procedure requires review the Operations Manager. 2 of 2 12/14/0012:55 PM K5500 Update: 12/17/00 Subject: K5500 Update: 12/17/00 Date: Mon, 18 Dec 2000 00:52:33 -0000 From: "PBU, Prod Opt TL" <PBUProdOptTL@BP.com> To: "'Wendy Mahan"' <Wendy_Mahan@admin.state.ak.us> Update: On 12/16 we found the transmitter that controls the slide valve actuator had failed also. The slide valve controls compressor loading. Estimated started is possibly tonight 12/17 (4th day as planned), but likely Monday night 12/18 or Tuesday if we need to get a new transmitter hot shotted to the slope. Chronology At 1130 on 12/13, K-5500 (wet gas compressor) S/D down at GC-3. We flared ~4.4 MMCFD at that time. The machine had failed bearings and seals. GC-3 will install a spare bundle that they have on hand. The estimated S/D time is 3 to 4 days. This machine pulls vapors from the water handling equipment and from the HP condensate recovery vessel. Our S/D procedure defines a schedule to bring down the affected parts of GC-3 to address compliance with AOGCC flaring regulations. JVI called in flaring event to Wendy Mahan @ AOGCC 12:50 PM 12/13. JVI sent email to Wendy @ AOGCC 1:10 PM 12/13. According to the procedure, at a S/D duration of 1 hr, GC-3 production was to be managed so that the plant operates on one of its two skim tanks. The plant was already only operating on one skim tank. The estimated flare rate was still ~4.4 MMCFD. After 4 hrs of downtime, GC-3 water production was to be reduced to 50 MBWPD and diverted to FS-3. The intention is to reduce flare rate to +/- 2.2 MMCFD. As FS3 had a water pump down at this time, we were only able to send ~25 MBWPD to FS-3. FS-3 hopes to have pump 15-189 up today, which will increase water handling capability from GC-3. At 7 hours S/D duration, all HP production into GC-3 was to be S/I to remove the vapors associated with the HP condensate recovery vessel going to flare. This would reduce flare rates to +/- 1.8 MMCFD. All HP banks were S/I and wells were choked back to minimum flow, then cycled through the test bank and a pressure control valve into the LP system. This eliminated HP vapors going to the condensate recovery vessel and flare. JVI notiifed AOGCC again 12/14 AM via email with estimated flaring volumes and durations. 1 of 2 12/18/00 9:24 AM K5500 Update: 12/17/00 After 24 hours in this operating mode, the procedure was reviewed by the Operations Manager. 2 of 2 12/18/00 9:24 AM K5500 Update: 12/18/00 Subject: K5500 Update: 12/18/00 Date: Mon, 18 Dec 2000 10:33:34 -0600 From: "PBU, Prod Opt TL" <PBUProdOptTL@bp.com> To: "'Wendy Mahan"' <Wendy_Mahan@admin.state.ak.us> On 12/16 we found the transmitter that controls the slide valve actuator had failed also. The slide valve controls compressor loading. Estimated start up is Tuesday 12/19 due to parts being delivered 12/18 PM. At this point, we have some water injection wells that could freeze up (those that do not take on a vacuum). GC3 plans on firing a produced water injection pump intermittently in order to protect these injection wells. The water tanks that K5500 normally pulls vapors off of have been out of service as result of this event, but there is a standing water level in them. We'll deliver that stored water to injection wells that need it, effectively lowering the level in the water tanks. Because of this, firing the PWI pump will likely not result in any additional rate to the flare. Chronology -note from 12/13 At 1130 on 12/13, K-5500 (wet gas compressor) S/D down at GC-3. We flared ~4.4 MMCFD at that time. The machine had failed bearings and seals. GC-3 will install a spare bundle that they have on hand. The estimated S/D time is 3 to 4 days. This machine pulls vapors from the water handling equipment and from the HP condensate recovery vessel. Our S/D procedure defines a schedule to bring down the affected parts of GC-3 to address compliance with AOGCC flaring regulations. JVI called in flaring event to Wendy Mahan @ AOGCC 12:50 PM 12/13. JVI sent email to Wendy @ AOGCC 1:10 PM 12/13 According to the procedure, at a S/D duration of 1 hr, GC-3 production was to be managed so that the plant operates on one of its two skim tanks. The plant was already only operating on one skim tank. The estimated flare rate was still ~4.4 MMCFD. After 4 hrs of downtime, GC-3 water production was to be reduced to 50 MBWPD and diverted to FS-3. The intention is to reduce flare rate to +/- 2.2 MMCFD. As FS3 had a water pump down at this time, we were only able to send ~25 MBWPD to FS-3. FS-3 hopes to have pump 15-189 up today, which will increase water handling capability from GC-3. At 7 hours S/D duration, all HP production into GC-3 was to be S/I to 1 of 2 12/18/00 9:24 AM K5500 Update: 12/18/00 remove the vapors associated with the HP condensate recovery vessel going to flare. This would reduce flare rates to +/- 1.8 MMCFD. All HP banks were S/I and wells were choked back to minimum flow, then cycled through the test bank and a pressure control valve into the LP system. This eliminated HP vapors going to the condensate recovery vessel and flare. JVI notiifed AOGCC again 12/14 AM via email with estimated flaring volumes and durations. After 24 hours in this operating mode, the procedure was reviewed by the Operations Manager. 2 of 2 12/18/00 9:24 AM RE: KSSOU Update: ~f`19/00 Subject: RE: K5500 Update: 12/19/00 Date: Tue, 19 Dec 2000 13:59:09 -0600 From: "PBU, Prod Opt TL" <PBUProdOptTL@bp.com> To: "'Wendy Mahan"' <Wendy_Mahan@admin.state.ak.us> Due to some parts having to come out of Canada and clear customs, estimated start up date of K5500 is now 12/20 PM. I'll be leaving today, and Hal Tucker will be coming up. Don't hesitate to call us (659-4472) with any questions. The supplemental flare report will include detailed mitigation measures consistent with the Wet Gas Compressor Shutdown Procedure, as well as estimated flare volumes over different periods of this event. Have a nice holiday Wendy. Jim Ierubino On 12/16 we found the transmitter that controls the slide valve actuator had failed also. The slide valve controls compressor loading. Estimated start up is Tuesday 12/19 due to parts being delivered 12/18 PM. At this point, we have some water injection wells that could freeze up (those that do not take on a vacuum). GC3 plans on firing a produced water injection pump intermittently in order to protect these injection wells. The water tanks that K5500 normally pulls vapors off of have been out of service as result of this event, but there is a standing water level in them. We'll deliver that stored water to injection wells that need it, effectively lowering the level in the water tanks. Because of this, firing the PWI pump will likely not result in any additional rate to the flare. Chronology -note from 12/13 At 1130 on 12/13, K-5500 (wet gas compressor) S/D down at GC-3. We flared ~4.4 MMCFD at that time. The machine had failed bearings and seals. GC-3 will install a spare bundle that they have on hand. The estimated S/D time is 3 to 4 days. This machine pulls vapors from the water handling equipment and from the HP condensate recovery vessel. Our S/D procedure defines a schedule to bring down the affected parts of GC-3 to address compliance with AOGCC flaring regulations. JVI called in flaring event to Wendy Mahan @ AOGCC 12:50 PM 12/13. 1 of 2 12/19/00 11:14 AM RE: K5500 Update: ?=/19/00 JVI sent email to Wendy @ AOGCC 1:10 PM 12/13. According to the procedure, at a S/D duration of 1 hr, GC-3 production was to be managed so that the plant operates on one of its two skim tanks. The plant was already only operating on one skim tank. The estimated flare rate was still ~4.4 MMCFD. After 4 hrs of downtime, GC-3 water production was to be reduced to 50 MBWPD and diverted to FS-3. The intention is to reduce flare rate to +/- 2.2 MMCFD. As FS3 had a water pump down at this time, we were only able to send ~25 MBWPD to FS-3. FS-3 hopes to have pump 15-189 up today, which will increase water handling capability from GC-3. At 7 hours S/D duration, all HP production into GC-3 was to be S/I to remove the vapors associated with the HP condensate recovery vessel going to flare. This would reduce flare rates to +/- 1.8 MMCFD. All HP banks were S/I and wells were choked back to minimum flow, then cycled through the test bank and a pressure control valve into the LP system. This eliminated HP vapors going to the condensate recovery vessel and flare. JVI notiifed AOGCC again 12/14 AM via email with estimated flaring volumes and durations. After 24 hours in this operating mode, the procedure was reviewed by the Operations Manager. 2 of 2 12/19/0011:14 AM K5500 Subject: K5500 Date: Sun, 31 Dec 2000 12:50:35 -0600 From: "PBU, Prod Opt TL" <PBUProdOptTL@bp.com> To: "'wendy mahan"' <wendy_mahan@admin.state.ak.us> Wendy, GC3 is still fighting problems with the K5500 wet gas compressor. It's been up and down several times in the last few days. Overhaul crew has provided us with a way forward (complete flush and change-out of the seal oil system) that estimates re-start timing of K5500 between late tonight (12/31) and early tomorrow. Following discussion with the Operations Manager, we determined that the most prudent course of action is to try and stabilize GC3's operation as much as possible and avoid a massive freeze protection effort (we have been in and out of phase weather conditions with no change forecasted). To that end we will: leave HP production on line leave high we production as is (currently cut to allow FS3 to handle all produced water) continue cycling choked wells as a freeze protection measure fire the sulzer daily to protect the injection wells (we have sufficient water stacked to allow this action) Should the overhaul crew discover additional problems that are likely to extend the K5500 repairs, we will re-evaluate our course of action. Please do not hesitate to give me a call if you want to discuss this further. Hope your New Year's weekend has gone better than ours, Hal Tucker GPB Production Optimization Team Leader 659-4472/5566 1 of 1 1/2/01 8:08 AM
