Coal-generated oil: Source rock evaluation and petroleum geochemistry of the Lulita oilfield, Danish North Sea

H.I. Petersen, J. Andsbjerg, J.A. Bojesen-Koefoed, H.P. Nytoft

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Abstrakt

The Harald and Lulita fields, Danish North Sea, are excellent examples of coal-sourced petroleum accumulations, the coals being assigned to the Middle Jurassic Bryne Formation. Although the same source rock is present at both fields, Lulita primarily contains waxy crude oil in contrast to Harald which contains large quantities of gas together with secondary oil/condensate. Lulita-1Xc encountered six coal seams associated with reservoir sandstones. The coals have a complex petrography dominated by vitrinite, with prominent proportions of inertinite and only small amounts of lipinite. Vitrinite reflectance data indicate that the coals are thermally mature, oil-source rock correlations suggest that the coals generated the crude oil at Lulita.

OriginalsprogEngelsk
Sider (fra-til)55-90
Antal sider36
TidsskriftJournal of Petroleum Geology
Vol/bind23
Udgave nummer1
DOI
StatusUdgivet - 1 jan. 2000

Programområde

  • Programområde 3: Energiressourcer

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