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South and North Barents Triassic-Jurassic total petroleum system of the Russian offshore Arctic

Open-File Report 99-50-N
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https://doi.org/10.3133/ofr9950N

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Abstract

One major gas-prone petroleum system characterizes the sparsely explored South and North Barents Basin Provinces of the Russian Arctic in the eastern Barents Sea. More than 13 billion barrels of oil equivalent (79 trillion cubic feet of gas) known ultimately recoverable gas reserves in seven fields were sourced from Triassic marine and continental shales and stored in Jurassic (97%) and Triassic (3%) marine and continental sandstone reservoir rocks. The basins contain 18-20 kilometers of pre-Upper Permian carbonate and post-Upper Permian siliciclastic sedimentary fill. Late Permian-Triassic(?) rifting and subsidence resulted in the deposition of as much as 9 kilometers of Triassic strata, locally injected with sills. Rapidly buried Lower Triassic source rocks generated hydrocarbons as early as Late Triassic into stratigraphic traps and structural closures that were modified periodically. Thermal cooling and deformation associated with Cenozoic uplift impacted seal integrity and generation processes, modified traps, and caused gas expansion and remigration.

Suggested Citation

Lindquist, S.J., 1999, South and North Barents Triassic-Jurassic total petroleum system of the Russian offshore Arctic: U.S. Geological Survey Open-File Report 99-50, 16 p., https://doi.org/10.3133/ofr9950N.

ISSN: 2331-1258 (online)

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title South and North Barents Triassic-Jurassic total petroleum system of the Russian offshore Arctic
Series title Open-File Report
Series number 99-50
Chapter N
DOI 10.3133/ofr9950N
Year Published 1999
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Description 16 p.
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