Print this pageABSTRACT: Geology of the Smorbukk Field--a Gas-Condensate Fault Trap
S. N. Ehrenberg, H. M. Gjerstad, F. Hadler-Jacobsen
The Smorrbukk field, which was discovered offshore mid-Norway in 1984, is a large gas-condensate find located on Haltenbanken in the western part of the Halten Terrace. The field covers an area of 140 km2, and straddles Blocks 6506/11 and 6506/12. Water depth is 250-300 m.
The field contains four reservoirs that consist of Lower and Middle Jurassic sandstones deposited in shallow-marine tidally influenced nearshore and braid-delta front environments.
Structurally, the Smorrbukk field is defined as a southeasterly dipping structure with major normal faults to the west and north. Three wells have been drilled, proving reserves in reservoirs with different hydrocarbon contacts and GORs. Reservoir properties vary considerably mainly due to diagenetic effects caused by burial depth. Sedimentology and sequence stratigraphy are considered to be important tools to predict lateral variations in reservoir facies.
At present, total in-place reserves are estimated to be 106 G Sm3 (3.7 tcf) gas and 90 M Sm3 (566 tcf) of condensate/oil.
AAPG Search and Discovery Article #91000©1990 AAPG Conference-Giant Oil and Gas Fields of the Decade 1978-1988 Conference, Stavanger, Norway, September 9-12, 1990