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| 1 | Migration and Central GrabenHydrocarbon Accumulation in the Pilot Field
The Pilot Field is located in block 21/27 some 30 kms from the western edge of the Central Graben Kimmeridge Clay source kitchen. The accumulation, which contains both oil and gas, therefore requires long distance hydrocarbon migration. | 21 | Technical Reviews | |
| 2 | The Oil Play in the Southern North Sea
Two relatively under-explored areas within the Southern North Sea retain potential for oil exploration, with proven oil-prone and mature source rocks developed along trend east and west of the southern area and some intriguing shows within the northern area. High-quality reservoirs have been proven by drilling in the Lower Permian, Triassic and Lower Cretaceous, with moderate quality reservoirs in the Carboniferous. | 21 | Technical Reviews | |
| 3 | The Fulmar Sandstone in the Central Graben
Shallow and marginal marine sandstone facies of the late Jurassic Fulmar Sandstone Formation form one of the most important reservoirs in the United Kingdom sector of the North Sea.The Fulmar is a key reservoir objective throughout the Central Graben area, but with most major fields located in the southernmost part of Quadrants 22 and 23 and in the northern part of Quadrants 29 and 30.9/14b-14 | 21 | Technical Reviews | |
| 4 | Viking Graben 9/5b-5, 5A
Eagle exploration. Hermod Sandstone in dip-closed mound at 7,200 to 7,400 ft. Well junked with stuck casing. | 21 | Recently Released | 009/05b-05 |
| 5 | Viking Graben 9/11e-14
Broch exploration. Mousa channel objective with amplitude and EM anomalies. Short (13 ft) oil column at top Mousa (2,612 ft) was not tested. | 21 | Recently Released | 009/11e-14 |
| 6 | Viking Graben 16/18b-5
Acer exploration. Miller (J66) Sandstone punch-out at 15,000 ft. Well proved good J66 sand development with moderate gas readings but no oil shows. J66 overlies J64 sandstone; probable base-seal breach. | 21 | Recently Released | 016/18b-05 |
| 7 | Viking Graben 16/29c-14
May appraisal. Fulmar pinch-out at 12,300 to 12,550 ft. Residual oil shows in Fulmar. | 21 | Recently Released | 016/29c-14 |
| 8 | Moray Firth/Witch Ground Graben 13/22c-30
Hermes exploration. Burns (Ettrick A/B) Sandstone in pinch-out at 11,000 ft. Good sand development in objectives but with only very minor residual oil shows. | 21 | Recently Released | 013/22c-30 |
| 9 | Moray Firth/Witch Ground Graben 13/23b-5, 5Z, 5Y
Tain exploration. Fault terrace with Captain and Coracle sandstone objectives. Oil in Captain and Coracle 4,116-4,341 ft TVDSS (ODT). Well was not tested. | 21 | Recently Released | 013/23b-05 |
| 10 | Moray Firth/Witch Ground Graben 14/18b-15A
Athena deviated appraisal. Basal Cretaceous Leek Sandstone in pinch-out onto tilted fault block at 9,000 ft. Oil in Upper Leek with 329 ft (TVT) column. DST 1,334 bopd + 0.057 mmcfgpd (28/64" choke). Oil gravity 25.3 deg API). | 21 | Recently Released | 014/18b-15A |
| 11 | Moray Firth/Witch Ground Graben 14/28a-5, 5Z
Laurel Valley exploration. Captain, Birch (Volgian) and Piper objectives in stacked pinch-outs. Captain absent. Good reservoir development in Birch. High torque in Kimmeridge Clay. Well abandoned and sidetracked. | 21 | Recently Released | 014/28a-05 |
| 12 | Moray Firth/Witch Ground Graben 15/11b-6
North Piper exploration. Piper in pinch-out at 6,500 to 7,100 ft. Good reservoir seen with no shows. | 21 | Recently Released | 015/11b-06 |
| 13 | Moray Firth/Witch Ground Graben 19/4-2
Full Moon exploration. Burns (Ettrick) Sandstone pinch-out on structural terrace at 5,500 ft. No significant sand development in objective. | 21 | Recently Released | 019/04-02 |
| 14 | Central Graben 21/5a-6, 6Z, 6Y, 6X
Enochdhu deviated exploration. Dip-closure with amplitude anomaly in Forties channel. Oil in Forties with 92 ft oil column at 6,892 ft TVDSS. Well was not tested. | 21 | Recently Released | 021/05a-06 |
| 15 | Central Graben 22/2b-13, 13Z, 13Y, 13X, 13W, 13V, 13U, 13T
Shelley deviated appraisal. Forties Sandstone in low-relief dip-closure. Forties dry at 8,201 ft TVDSS. | 21 | Recently Released | 022/02b-13 |
| 16 | Central Graben 22/15-3
Banks exploration. Forties in dip-closure. Gas (8,655 to 8,704 ft TVDSS) over oil (8,704 to 8,738 ft). Oil zone tested 1,080 bopd + 12.3 mmcfgpd (72/64" choke). | 21 | Recently Released | 022/15-03 |
| 17 | Central Graben 23/16b-10
Barbara appraisal. Forties objective in salt abutment trap. Proved 385 ft gas/ condensate pay (GWC 8,788 ft TVDSS). Planned DST was not run. | 21 | Recently Released | 023/16b-10 |
| 18 | Central Graben 23/16f-11
Columbus exploration. NNW-SSE trending Forties channel with amplitude/AVO anomalies. Proved 162 ft gas/condensate column in Forties with GWC at 9,869 ft TVDSS. Tested 17.5 mmcfgpd + 1,060 bcpd (56/64" choke). Condensate gravity 47.5°API). | 21 | Recently Released | 023/16f-11 |
| 19 | Central Graben 30/2a-5, 5Z, 5Y
Courageous deviated appraisal. Forties in dip-closure at 9,900 to 10,050 ft (TVDSS). Gas/condensate in Forties at 9,967 to
10,050 ft over oil (10,050 to 10,103 ft TVDSS). Oil zone tested 3,000 bopd (41 deg API). Gas zone tested 2.0 mmcfgpd + 800 bcpd (48 deg API). | 21 | Recently Released | 030/02a-05 |
| 20 | Central Graben 30/2a-6
Jackdaw HPHT exploration. Faulted anticline (turtleback) with Fulmar (Puffin) objective prognosed at 18,937 ft. Well proved 44 ft oil column in Forties at 10,318 ft. Fulmar absent, but gas/ condensate in Pentland at 18,238 ft to TD. Well was not tested. | 21 | Recently Released | 030/02a-06 |
| 21 | Central Graben 30/23b-4
Balgownie exploration. Faulted anticline with Fulmar (primary) and Auk (secondary) sandstone objectives. Well proved good sand development in both objectives at 9,675 and 10,027 ft respectively. No shows seen. | 21 | Recently Released | 030/23b-04 |
| 22 | Southern North Sea 37/25-1
Corbenic exploration. Large faulted anticline with Middle Devonian Kyle Limestone at 7,800 to 9,000 ft. Reservoir objective was absent with crystalline basement high to prognosis. | 21 | Recently Released | 037/25-01 |
| 23 | Southern North Sea 44/17b-7, 7Z
Munroe exploration. Lower Ketch 2 Sandstone objective in subconformity trap below base Permian. Ketch at 12,092 ft with 62 ft net gas and gas/water contact at 12,261 ft TVDSS. Well was not tested but a production sidetrack was drilled. | 21 | Recently Released | 044/17b-07 |
| 24 | Southern North Sea 48/22b-6
Cirrus deviated exploration. Low-relief faulted anticline with Leman Sandstone objective. Short gas column (37 ft) in Leman at 7,766 ft TVDSS. Well was not tested. | 21 | Recently Released | 048/22b-06 |
| 25 | Southern North Sea 48/24a-4
Wherry B deviated appraisal. Leman Sandstone in faulted anticline at 7,000-7,235 ft (gas-water contact). Gas in low-quality Leman at 7,187 ft TVDSS was not tested. | 21 | Recently Released | 048/24a-04 |
