44:
470:. The pilots conducted an emergency landing on the West Franklin platform. The helicopter is reported to have spun on the helideck during the landing, damaging the helicopter wheels and rotor blades. The helideck also sustained damage during the emergency landing. There were no reported injuries amongst the nine passengers and two crew during the incident. The aircraft was transported back to Aberdeen via ship, at which time the
51:
440:
were working on repairing the leak. The West
Phoenix semi submersible rig was working on the "top kill" operation. This involved pumping weighted drilling mud into the well via the wellhead assembly, a method which was ultimately successful in halting the leak. A relief well, G4-K1 was drilled to "bottom kill" the well by the Sedco 714.
393:
was alight till 31 March 2012 representing a potential risk of ignition for the leaking gas if wind direction should change. Total announced the flare spontaneously shut down on
Saturday 31 March 2012 after exhaustion of the volatile residues within the PUQ processing facilities which it was burning.
707:
The Elgin structure is a fault bounded high on top of a collapsed
Triassic mud "pod". It is heavily faulted and split into several separate fault panels with discrete gas water contacts. The reservoir is the same Fulmar sandstone as Franklin. The Pentland reservoir at Elgin is of poorer quality than
439:
During April 2012 a diverter assembly was installed around the G4 well head to divert the leaking gas (estimated then at 200,000 cubic metres per day (7,100,000 cu ft/d)) away from the platform in a controlled manner enabling well control operations to begin. In May 2012 two drilling rigs
362:
The West
Franklin reservoir was discovered by Total in 2003. It was developed by a deviated well from the Franklin platform. First production was achieved in March 2007 with the second well coming on stream in September 2008. A new wellhead platform was installed on West Franklin in 2014 with three
384:
declared a 2 nautical miles (3.7 km; 2.3 mi) exclusion zone for ships and a 3 miles (4.8 km) exclusion zone for aircraft. Shell E&P also evacuated non essential staff from the separate
Shearwater platform located in block 22/30b 6 km (3.2 nmi) from Elgin. At its peak,
320:
On 25 March 2012, a gas leak occurred at the Elgin platform resulting in a shut down of production and evacuation of personnel. The leak continued for over seven weeks, and was stopped after well intervention work on 16 May 2012. Production from the fields restarted almost a year later, on 9 March
754:
at a water depth of 93 metres (305 ft). The installation consists of three separate platforms, two of which are connected by a 90 m (300 ft) bridge: two wellhead platforms which house the wells, one each for the Elgin and
Franklin reservoirs, and the process, utilities and quarters
785:
The
Franklin wellhead platform (WHP) has nine well slots (seven wells on the Franklin Field and two extended reach wells on West Franklin) . It is not normally manned but has a helideck and shelter for up to 20 people. The Elgin wellhead platform has 12 well slots (11 wells on Elgin and one
477:
Sikorsky issued a notice on 9 January 2017 grounding all S-92 aircraft until the tail rotors have been inspected. The inspection work takes approximately 11 man hours to complete. The Air
Accidents Investigation Branch issued an update on 11 January 2017 which reported that the tail rotor pitch
379:
At the time of the incident the fields were producing 120,000 barrels per day (19,000 m/d) of oil equivalent, about 7% of the UK's gas production. Methane gas was released into the environment as was between two and 23 tonnes of condensate which formed a sheen on the sea surface measuring
478:
change shaft bearing had seized. The bearing showed signs of severe overheating and significant wear. The failure of the bearing allowed the tail rotor driveshaft to damage the tail rotor servo. The damage to the tail rotor servo is considered to be the cause of tail rotor control. The
684:
forms a second reservoir with a separate hydrocarbon pool. The reservoir is at 5,500 metres (18,000 ft) depth. It is at pressures of 14,000 psi (97,000 kPa) and temperatures of 190 °C (374 °F). Originally the recoverable reserves for
Franklin were estimated at
316:
at a water depth of 93 metres (305 ft). The joint development of the Elgin and
Franklin fields is the largest high pressure high temperature development in the world, and also contains the world's hottest, highest temperature field, West Franklin, and the Glenelg field.
363:
wells being drilled as of 2016. Production from the first well (29/5b-H1Z) started in 2015. A second wellhead platform Elgin B has also been installed at Elgin and is bridge linked to the Elgin A platform and PUQ to enable extra infill production wells to be drilled.
793:
The west Franklin and Elgin B platforms were installed in 2014 in order to enable drilling of further development wells in the fields due to constraints in the existing facilities. In 2017 there were three wells on West Franklin and three wells on Elgin B)
371:
On 25 March 2012 a gas leak occurred at the Elgin Well head platform within well 22/30c-G4 during operations to plug and decommission the well. No injuries were reported and 219 non-essential personnel were evacuated from the PUQ and the adjacent
435:
An inspection team comprising eight people from Total and Wild Well Control, a specialist well control company, boarded the Elgin platform on 5 April 2012 to gather information about the state of the platform. The team left safely after four hours.
443:
Eleven monitoring overflights of the area by surveillance aircraft from Oil Spill Response Limited were made in early May, and the flow rate from the well was estimated at that time to be 50,000 cubic metres per day (1,800,000 cu ft/d).
708:
that underneath Franklin and has not been developed. The original estimate of recoverable reserves for Elgin was 890 billion cubic feet (25 billion cubic metres) of gas and 245 million barrels (39.0
758:
The PUQ is a pile mounted jack up design which contains hydrocarbon processing facilities, control systems and accommodation for the crew of 97. The structure was built by BARMAC in
498:
Equity in Elgin and Franklin was fixed by a unitisation agreement between three partner groups, and is shown in the table below. West Franklin is owned by the same partnership.
837:
The West Franklin reservoir is the world's hottest, highest pressure reservoir, with a temperature of 197 °C (387 °F) and pressure of 1,155 bars (115,500 kPa).
1393:
1069:
1330:
1593:
432:
and remedial operations started on 4 March 2012. Total believe that the C annulus failed and gas was observed leaking from the 30-inch (760 mm) conductor.
786:
extended reach well on Glenelg). The platforms are linked to the PUQ by flowlines and were installed in 1999. The WHP has no installed drilling facilities (
1095:
113:
1334:
43:
924:
1196:
1767:
1620:
479:
340:
The Elgin field was discovered by well 22/30c-8 in 1991 and appraised by wells 22/30c-10 in 1992/1993 and 22/30c-13 in 1994, drilled by
1548:
1489:
1054:
471:
376:
jack up drilling rig, which was performing the decommissioning work. The remaining 19 personnel were evacuated later on the same day.
1687:
1644:
676:
The Franklin field is a tilted fault block with little internal faulting. The main reservoir is the Upper Jurassic (Oxfordian Age)
1482:
1222:
1028:
1360:
967:
1757:
466:
experienced "unexpected control responses" whilst in mid-air on a routine shuttle flight between two oil installations in the
397:
The cause of the incident was identified as corrosion in the casing of the G4 well, and a sudden release of gas from the Hod
355:
The Glenelg satellite field was discovered in 1999 by well 29/4d-4, drilled by Total. It is named after the Scottish town of
762:, Scotland, and installed in July 2000. The facility has a processing capacity of 516 million cubic feet per day (14.6
394:
The leak was stopped following well intervention work on 16 May 2012, which involved pumping mud and cement into the well.
333:
in 1985, and appraised by wells 29/5b-6z in 1989/1990 and 29/5b-8 in 1991. The field was named after British Explorer Sir
1169:
1002:
846:
857:
790:, etc.). Well drilling and workover services are provided when needed by a jack up rig which operates in tender mode.
348:. It is also named as a tribute to a geologist named Nigel who was instrumental in the field's discovery, Elgin is an
1602:
1122:
1725:
1752:
1099:
398:
359:. It was developed by a step-out well drilled from the Elgin platform and first production was in March 2006.
1668:
1452:
1422:
1246:
1145:
798:
186:
1762:
696:
490:
The fields are operated by Total E&P UK Limited, a subsidiary of Total S.A.(formerly Elf Aquitaine).
385:
200,000 cubic metres per day (7,100,000 cu ft/d) of gas was being released, which slowed when a
928:
886:
681:
887:"The Elgin/Franklin Project: Developing the Largest High Pressure/High Temperature Fields in the World"
677:
685:
820 billion cubic feet (23 billion cubic metres) of natural gas and 120 million barrels (19
1522:. Petroleum Geology Conference Series. Vol. 5. Geological Society, London. pp. 1007–1020.
405:
reservoir layer of the Hod formation located at a depth of 4,500 metres (14,800 ft), above the
1309:
1288:
1267:
802:
406:
178:
425:
401:
above the producing reservoir. Total identified the origin of the gas leak to be an unexploited
1628:
950:
414:
356:
1698:
1523:
894:
410:
1552:
1706:
806:
1515:
1652:
1032:
801:
to BP's Kinneil terminal in Grangemouth while produced gas is transported through the
759:
463:
418:
301:
409:, which was supported by analysis showing the absence of significant concentration of
1746:
974:
459:
381:
341:
334:
1772:
1394:"Fresh pictures emerge showing aftermath of North Sea helicopter emergency landing"
345:
1688:"Advanced drilling in HP/HT: Total's experience on Elgin/Franklin (UK North Sea)"
1006:
482:
had discovered the flaw the day before flight, but the maintenance crew had not.
851:
386:
170:
1401:
1368:
1247:"BBC News - Total gas leak: Team assesses leak at Elgin platform in North Sea"
174:
158:
148:
17:
1578:
734:
The Glenelg field is a tilted fault block with a Fulmar formation reservoir.
128:
115:
743:
742:
The Elgin-Franklin development is located in the Central Graben Area of the
467:
390:
305:
81:
1223:"Elgin Gas Leak : Press Conference : Aberdeen, 30 March 2012??"
863:
751:
747:
429:
330:
313:
309:
166:
70:
1520:
Petroleum Geology of Northwest Europe: Proceedings of the 5th Conference
1170:"Elgin North Sea gas platform resumes production almost year after leak"
380:
approximately 6 nautical miles (11 km; 6.9 mi) in length. The
1702:
787:
349:
1514:
Lasocki, J; Guemene, J M; Hedayati, A; Legorjus, C; Page, W M (1999).
898:
1527:
1516:"The Elgin and Franklin fields: UK Blocks 22/30c, 22/30b and 29/5b"
1453:"Sikorsky grounds S92 helicopters for safety checks after incident"
462:
helicopter (registration G-WNSR, serial number 920250) operated by
424:
On 25 February 2012, an increase in pressure was observed in the C
1197:"Total's Elgin-Franklin Field Producing at Half Pre-Accident Rate"
402:
182:
352:
of Nigel. Production from the Elgin field began in March 2001.
1460:
1430:
1055:"UK: West Franklin Phase 2 brought on stream in the North Sea"
726:
The West Franklin structure has a Fulmar formation reservoir.
329:
The Franklin field was discovered by well 29/5b-4, drilled by
162:
1289:"Total | Elgin gas leak : Weekly Update (May 4–10)"
1726:"Elgin / Franklin platform gas leak in Brittan's North Sea"
1268:"Total | Elgin gas leak: weekly summary (April 20–26)"
680:
which has porosities in excess of 20%. The Middle Jurassic
447:
On 16 May, Total announced that the leak had been stopped.
755:(PUQ) platform, which is the central processing platform.
1361:"Helicopter 'spun on platform deck' in emergency landing"
1310:"Total | Elgin leak stopped after well intervention"
1070:"Total admits it could take six months to stop gas leak"
772: m/d) of gas and 175 thousand barrels per day (27.8
1579:"Gas leak incident at Elgin platform in the North Sea"
605:The partners in the Glenelg field are shown below.
413:in the gas. The Hod formation had been isolated by
286:
258:
240:
222:
217:
207:
197:
192:
154:
144:
107:
99:
87:
77:
66:
32:
344:. The field was named after the Scottish town of
304:fields located in the Central Graben Area of the
1645:"Total in the UK – Activities Elgin / Franklin"
290:Upper Jurassic Fulmar Formation (Franklin Sand)
1096:"Total shuts Elgin gas, oil output after leak"
818:high pressure / high temperature (HP/HT) wells
1423:"North Sea helicopter 'gouged platform deck'"
474:began their investigation into the incident.
50:
8:
830:fluid temperature: 193 °C (379 °F)
797:The Produced oil is transported through the
337:, and first production was in August 2001.
951:"Oil and Gas field names in the North Sea"
29:
1335:Civil Aviation Authority (United Kingdom)
1123:"Total resumes Elgin-Franklin production"
997:
995:
919:
917:
915:
1387:
1385:
1354:
1352:
833:sea floor depth: 93 m (305 ft)
607:
500:
1730:Disease, climate, ecology and evolution
874:
1601:, Total E&P UK Plc, archived from
1509:
1507:
925:"ELGIN / FRANKLIN FACTS & FIGURES"
880:
878:
821:well depth: 5,500 m (3.4 mi)
746:240 kilometres (130 nmi) east of
450:Production restarted on 9 March 2013.
308:240 kilometres (130 nmi) east of
7:
27:Fossil fuel deposit in the North Sea
1669:"Gas leak platform flare 'burning'"
1595:Elgin/Franklin information brochure
1146:"Gas leak platform flare 'burning'"
1121:Kavanagh, Michael (11 March 2013).
480:health and usage monitoring systems
1490:Air Accidents Investigation Branch
472:Air Accidents Investigation Branch
25:
1359:Burns, Niamh (30 December 2016).
1094:Schaps, Karolin (26 March 2012).
454:December 2016 Helicopter Incident
1228:. Elgin.total.com. 11 March 2013
494:Elgin-Franklin and West Franklin
58:Location of Elgin–Franklin field
49:
42:
1695:Journal of Petroleum Technology
1483:"AAIB Bulletin S1/2017 SPECIAL"
1392:Lammey, Mark (5 January 2017).
1068:Gosden, Emily (27 March 2012).
891:Offshore Technology Conference
824:pressure range: 600 – 1100 bar
1:
1768:ExxonMobil oil and gas fields
1312:. Elgin.total.com. 2012-03-25
1291:. Elgin.total.com. 2012-03-25
1270:. Elgin.total.com. 2012-03-25
1195:Patel, Tara (24 April 2013).
827:operational pressure: 860 bar
639:formerly Premier Oil UK Ltd.
553:formerly Premier Oil UK Ltd.
226:45,000 barrels per day (~2.2
847:Energy in the United Kingdom
858:Deepwater Horizon oil spill
389:was drilled. The platform
1789:
782: m/d) of condensate.
244:365 million barrels (~4.98
1697:. October (10): 116–120.
1098:. Reuters. Archived from
813:Reservoir characteristics
223:Current production of oil
37:
1686:Bergerot, J.-L. (2011).
718: m) of condensate.
628:Operator (formerly Elf)
521:Operator (formerly Elf)
1667:BBC News (2012-03-28).
1551:. Total. Archived from
1549:"Total ICOP, Elgin PUQ"
1249:. Bbc.co.uk. 2012-04-05
1144:BBC News (2012-03-28).
1031:. Total. Archived from
1005:. Total. Archived from
973:. Total. Archived from
927:. Total. Archived from
885:Fort, Joel (May 2000).
799:Forties pipeline system
655:Eni Elgin/Franklin Ltd.
542:formerly Chrysaor Ltd.
526:Eni Elgin/Franklin Ltd.
1758:Oil fields of Scotland
1621:"Elgin Franklin field"
1331:"GINFO Search Results"
650:formerly Chrysaor Ltd
568:Chevron North Sea Ltd.
458:On 28 December 2016 a
259:Estimated gas in place
213:August 2001 (Franklin)
622:Total E&P UK Ltd.
579:One-Dyas E&P Ltd.
515:Total E&P UK Ltd.
298:Elgin–Franklin fields
187:Oranje-Nassau Energie
1643:Total (2012-03-31).
1619:Total (2012-03-31).
1577:Total (2012-03-31).
968:"Glenelg Fact Sheet"
558:Esso E&P UK Ltd.
287:Producing formations
272: cu ft (48
33:Elgin–Franklin field
644:Harbour Energy Ltd.
633:Harbour Energy Ltd.
589:Summit E&P Ltd.
547:Harbour Energy Ltd.
536:Harbour Energy Ltd.
367:March 2012 gas leak
208:Start of production
179:Chevron Corporation
125: /
1724:Jtt (2012-03-26).
1703:10.2118/129422-JPT
1057:. 15 January 2015.
682:Pentland formation
211:March 2001 (Elgin)
1555:on 1 January 2014
1492:. 11 January 2017
1463:. 10 January 2017
1125:. Financial Times
1009:on 8 January 2014
980:on 1 January 2014
664:
663:
598:
597:
357:Glenelg, Highland
300:are two adjacent
294:
293:
16:(Redirected from
1780:
1753:North Sea energy
1739:
1737:
1736:
1720:
1718:
1717:
1711:
1705:. Archived from
1692:
1682:
1680:
1679:
1663:
1661:
1660:
1651:. Archived from
1639:
1637:
1636:
1627:. Archived from
1615:
1614:
1613:
1607:
1600:
1588:
1586:
1585:
1565:
1564:
1562:
1560:
1545:
1539:
1538:
1536:
1534:
1511:
1502:
1501:
1499:
1497:
1487:
1479:
1473:
1472:
1470:
1468:
1449:
1443:
1442:
1440:
1438:
1433:. 5 January 2017
1419:
1413:
1412:
1410:
1408:
1389:
1380:
1379:
1377:
1375:
1356:
1347:
1346:
1344:
1342:
1337:. 9 January 2017
1327:
1321:
1320:
1318:
1317:
1306:
1300:
1299:
1297:
1296:
1285:
1279:
1278:
1276:
1275:
1264:
1258:
1257:
1255:
1254:
1243:
1237:
1236:
1234:
1233:
1227:
1219:
1213:
1212:
1210:
1208:
1192:
1186:
1185:
1183:
1181:
1166:
1160:
1159:
1157:
1156:
1141:
1135:
1134:
1132:
1130:
1118:
1112:
1111:
1109:
1107:
1102:on March 5, 2016
1091:
1085:
1084:
1082:
1080:
1065:
1059:
1058:
1051:
1045:
1044:
1042:
1040:
1035:on 6 August 2018
1025:
1019:
1018:
1016:
1014:
999:
990:
989:
987:
985:
979:
972:
964:
958:
957:
955:
947:
941:
940:
938:
936:
931:on 30 March 2012
921:
910:
909:
907:
905:
899:10.4043/12117-MS
882:
778:
777:
768:
767:
714:
713:
691:
690:
678:Fulmar Sandstone
608:
574:formerly Texaco
501:
411:hydrogen sulfide
278:
277:
268:
267:
250:
249:
232:
231:
140:
139:
137:
136:
135:
130:
129:57.167°N 2.000°E
126:
123:
122:
121:
118:
100:Offshore/onshore
73:, United Kingdom
53:
52:
46:
30:
21:
1788:
1787:
1783:
1782:
1781:
1779:
1778:
1777:
1743:
1742:
1734:
1732:
1723:
1715:
1713:
1709:
1690:
1685:
1677:
1675:
1666:
1658:
1656:
1642:
1634:
1632:
1618:
1611:
1609:
1605:
1598:
1591:
1583:
1581:
1576:
1573:
1568:
1558:
1556:
1547:
1546:
1542:
1532:
1530:
1528:10.1144/0051007
1513:
1512:
1505:
1495:
1493:
1485:
1481:
1480:
1476:
1466:
1464:
1451:
1450:
1446:
1436:
1434:
1421:
1420:
1416:
1406:
1404:
1391:
1390:
1383:
1373:
1371:
1358:
1357:
1350:
1340:
1338:
1329:
1328:
1324:
1315:
1313:
1308:
1307:
1303:
1294:
1292:
1287:
1286:
1282:
1273:
1271:
1266:
1265:
1261:
1252:
1250:
1245:
1244:
1240:
1231:
1229:
1225:
1221:
1220:
1216:
1206:
1204:
1194:
1193:
1189:
1179:
1177:
1176:. 11 March 2013
1168:
1167:
1163:
1154:
1152:
1143:
1142:
1138:
1128:
1126:
1120:
1119:
1115:
1105:
1103:
1093:
1092:
1088:
1078:
1076:
1067:
1066:
1062:
1053:
1052:
1048:
1038:
1036:
1029:"West Franklin"
1027:
1026:
1022:
1012:
1010:
1001:
1000:
993:
983:
981:
977:
970:
966:
965:
961:
953:
949:
948:
944:
934:
932:
923:
922:
913:
903:
901:
884:
883:
876:
872:
843:
815:
807:Bacton, Norfolk
775:
773:
765:
763:
740:
732:
724:
711:
709:
705:
688:
686:
674:
669:
603:
496:
488:
456:
369:
327:
275:
273:
265:
263:
247:
245:
241:Recoverable oil
229:
227:
212:
202:
201:1985 (Franklin)
185:
181:
177:
173:
169:
165:
161:
133:
131:
127:
124:
119:
116:
114:
112:
111:
94:
92:
62:
61:
60:
59:
56:
55:
54:
28:
23:
22:
15:
12:
11:
5:
1786:
1784:
1776:
1775:
1770:
1765:
1760:
1755:
1745:
1744:
1741:
1740:
1721:
1683:
1664:
1640:
1616:
1592:Total (2004),
1589:
1572:
1571:External links
1569:
1567:
1566:
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1503:
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672:Franklin field
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519:
516:
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505:
495:
492:
487:
484:
464:CHC Helicopter
455:
452:
407:main reservoir
368:
365:
326:
323:
302:gas condensate
292:
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68:
64:
63:
57:
48:
47:
41:
40:
39:
38:
35:
34:
26:
24:
18:Elgin platform
14:
13:
10:
9:
6:
4:
3:
2:
1785:
1774:
1771:
1769:
1766:
1764:
1763:TotalEnergies
1761:
1759:
1756:
1754:
1751:
1750:
1748:
1731:
1727:
1722:
1712:on 2012-04-05
1708:
1704:
1700:
1696:
1689:
1684:
1674:
1670:
1665:
1655:on 2018-08-06
1654:
1650:
1646:
1641:
1631:on 2012-04-01
1630:
1626:
1622:
1617:
1608:on 2012-08-07
1604:
1597:
1596:
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1580:
1575:
1574:
1570:
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1370:
1366:
1362:
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1349:
1336:
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1311:
1305:
1302:
1290:
1284:
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1218:
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1202:
1201:Bloomberg.com
1198:
1191:
1188:
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1162:
1151:
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1117:
1114:
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1097:
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1087:
1075:
1074:The Telegraph
1071:
1064:
1061:
1056:
1050:
1047:
1034:
1030:
1024:
1021:
1008:
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976:
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946:
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926:
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918:
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869:
865:
862:
859:
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848:
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844:
840:
838:
832:
829:
826:
823:
820:
817:
816:
812:
810:
808:
804:
803:SEAL Pipeline
800:
795:
791:
789:
783:
781:
771:
761:
756:
753:
749:
745:
737:
735:
729:
727:
722:West Franklin
721:
719:
717:
702:
700:
698:
694:
683:
679:
671:
666:
660:
657:
654:
653:
649:
646:
643:
642:
638:
635:
632:
631:
627:
624:
621:
620:
616:
613:
610:
609:
606:
600:
594:
592:2.1875 %
591:
588:
587:
584:
581:
578:
577:
573:
570:
567:
566:
563:
560:
557:
556:
552:
549:
546:
545:
541:
539:14.110 %
538:
535:
534:
531:
528:
525:
524:
520:
517:
514:
513:
509:
506:
503:
502:
499:
493:
491:
485:
483:
481:
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469:
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461:
460:Sikorsky S-92
453:
451:
448:
445:
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437:
433:
431:
427:
422:
420:
416:
412:
408:
404:
400:
395:
392:
388:
383:
382:HM Coastguard
377:
375:
366:
364:
360:
358:
353:
351:
347:
343:
342:Elf Aquitaine
338:
336:
335:John Franklin
332:
324:
322:
318:
315:
311:
307:
303:
299:
289:
285:
281:
271:
261:
257:
253:
243:
239:
235:
225:
221:
216:
210:
206:
200:
196:
193:Field history
191:
188:
184:
180:
176:
172:
168:
164:
160:
157:
153:
150:
147:
143:
138:
134:57.167; 2.000
110:
106:
102:
98:
90:
86:
83:
80:
76:
72:
69:
65:
45:
36:
31:
19:
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1729:
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1648:
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1624:
1610:, retrieved
1603:the original
1594:
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1543:
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1519:
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1477:
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1456:
1447:
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1426:
1417:
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1398:Energy Voice
1397:
1372:. Retrieved
1365:Energy Voice
1364:
1339:. Retrieved
1325:
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1304:
1293:. Retrieved
1283:
1272:. Retrieved
1262:
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1241:
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1217:
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1200:
1190:
1178:. Retrieved
1174:The Guardian
1173:
1164:
1153:. Retrieved
1149:
1139:
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1116:
1104:. Retrieved
1100:the original
1089:
1077:. Retrieved
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1023:
1011:. Retrieved
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975:the original
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945:
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902:. Retrieved
890:
836:
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792:
784:
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769:
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692:
675:
636:18.57 %
604:
497:
489:
476:
457:
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446:
442:
438:
434:
423:
415:steel casing
396:
378:
374:Rowan Viking
373:
370:
361:
354:
339:
328:
319:
297:
295:
279:
269:
251:
233:
203:1991 (Elgin)
1207:30 December
1203:. Bloomberg
1180:30 December
1129:30 December
1106:30 December
904:31 December
852:Piper Alpha
738:Development
703:Elgin field
428:within the
387:relief well
171:Premier Oil
132: /
108:Coordinates
1747:Categories
1735:2012-03-31
1716:2012-03-28
1678:2012-03-31
1659:2012-03-31
1635:2012-03-31
1625:Total ICOP
1612:2012-04-07
1584:2012-03-31
1496:12 January
1467:10 January
1437:10 January
1407:10 January
1402:DC Thomson
1374:10 January
1369:DC Thomson
1341:10 January
1316:2013-10-25
1295:2013-10-25
1274:2013-10-25
1253:2013-10-25
1232:2013-10-25
1155:2012-03-31
870:References
697:condensate
236: t/a)
218:Production
175:ExxonMobil
159:Total S.A.
149:Total S.A.
1559:1 January
1533:1 January
1079:1 January
1039:1 January
1013:1 January
1003:"Glenelg"
984:1 January
935:1 January
744:North Sea
486:Ownership
468:North Sea
421:in 1997.
399:formation
306:North Sea
198:Discovery
82:North Sea
1649:Total UK
1457:BBC News
1427:BBC News
864:Sour gas
841:See also
752:Scotland
748:Aberdeen
419:drilling
331:Ultramar
314:Scotland
310:Aberdeen
282: m)
254: t)
167:BG Group
155:Partners
145:Operator
103:Offshore
78:Location
71:Scotland
788:derrick
730:Glenelg
667:Geology
611:Company
601:Glenelg
582:2.1875%
529:21.867%
518:46.137%
504:Company
426:annulus
417:during
350:anagram
325:History
117:57°10′N
67:Country
860:(2010)
854:(1988)
647:14.70%
625:58.73%
614:Equity
571:3.900%
561:4.375%
550:5.200%
507:Equity
321:2013.
120:2°00′E
93:22/30c
91:22/30b
1710:(PDF)
1691:(PDF)
1606:(PDF)
1599:(PDF)
1486:(PDF)
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978:(PDF)
971:(PDF)
954:(PDF)
893:: 1.
658:8.00%
617:Note
510:Note
403:chalk
391:flare
346:Elgin
262:1,710
95:29/5b
88:Block
1561:2014
1535:2014
1498:2017
1469:2017
1439:2017
1409:2017
1376:2017
1343:2017
1209:2013
1182:2013
1131:2013
1108:2013
1081:2014
1041:2014
1015:2014
986:2014
937:2014
906:2013
760:Nigg
430:well
296:The
183:Dyas
1773:Eni
1699:doi
1673:BBC
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