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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


DOI: 10.1306/06272321031

Hydrocarbon-bearing volcanic lava deltas as potential reservoirs: A case study from the North Atlantic Igneous Province, Faroe-Shetland Basin

Óluva Reginsdóttir Eidesgaard,1 Lars Ole Boldreel,2 Niels Hemmingsen Schovsbo,3 and Jana Ólavsdóttir4

1Jarðfeingi, Tórshavn, Faroe Islands; [email protected]
2Department of Geosciences and Natural Resources Management, University of Copenhagen, Copenhagen, Denmark; [email protected]
3Geological Survey of Denmark and Greenland, Copenhagen, Denmark; [email protected]
4Jarðfeingi, Tórshavn, Faroe Islands; [email protected]


More than 150 volcanic-related hydrocarbon reservoirs have been discovered around the world. In 2010, three gas intervals (lower, middle, and upper, with a total thickness of 350 m [1150 ft]) were found in the offshore Anne-Marie exploration well in a present-day deep-water volcanic setting in the Faroese sector in the Faroe-Shetland Basin, northeast Atlantic Ocean. Seeps, shows, and traces of hydrocarbons in the area indicate that an active petroleum system is in place. The geology is characterized by submarine and subaerial basaltic volcanism such as hyaloclastites, volcaniclastics, lava flows, and intrusions. A core from the middle gas interval comprises vesicular palagonite lavas, vesicular glassy lavas, and vesicular subaqueous lavas. Measurements from this core reveal median porosity of 33.1%, 15%, and 3.9%, and a median permeability of 0.35, 0.22, and

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