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Norwegian Sea – Upper Triassic to Middle Jurassic plays

Norwegian Sea - Upper Triassic to Middle Jurassic plays

Group/Formation Age Area Reservoir rock Depositional environment Trap Source rock Critical factors Examples of fields Examples of discoveries Examples exploration wells
nhjl,jm-1 Undifferentiated Undifferentiated Ribban Basin, Vestfjorden Basin, Utrøst Ridge, Træna Basin, Harstad Basin Sandstone Coastal, deltaic and shallow marine Rotated fault blocks Upper Jurassic shale (Spekk Formation) and Upper Triassic to Lower Jurassic coal beds (Åre Formation) Reservoir quality, sufficient source rock and migration, nhjl,jm-1, nhjl,jm-3: uplift and erosion, nhjl,jm-2: seal integrity due to high reservoir pressure

nhjl,jm-2 Båt Group with Åre, Tilje, Tofte and Ror Formations, Fangst Group with Ile, Not and Garn Formations Rhaetian - Bathonian Halten Terrace, Nordland Ridge, Dønna Terrace, Revfallet Fault Complex Sandstone Coastal, deltaic and shallow marine Rotated fault blocks Upper Jurassic shale (Spekk Formation) and Upper Triassic to Lower Jurassic coal beds (Åre Formation) Reservoir quality, sufficient source rock and migration, nhjl,jm-1, nhjl,jm-3: uplift and erosion, nhjl,jm-2: seal integrity due to high reservoir pressure
nhjl,jm-3 (unconfirmed) Båt and Fangst Groups Rhaetian - Bathonian Helgeland Basin Sandstone Coastal, deltaic and shallow marine Rotated fault blocks Upper Triassic to Lower Jurassic coal beds (Åre Formation) and possibly older source rocks (Permian (ref. stratigraphic borehole 6611/9-U-1), Devonian) Reservoir quality, sufficient source rock and migration, nhjl,jm-1, nhjl,jm-3: uplift and erosion, nhjl,jm-2: seal integrity due to high reservoir pressure