Integrated characterization of an organic-rich caprock shale, Svalbard, Arctic Norway

Both thermogenic and biogenic gas were encountered during scientific drilling on Svalbard, Arctic Norway. The thermogenic gas has been encountered in an interval at 650-703 m depth, spanning both the lower part of the caprock, an organic-rich shale unit with subordinate siltstone intervals, and the...

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Bibliographic Details
Main Authors: Senger, K., Mulrooney, M., Braathen, A., Ogata, K., Olaussen, S.
Format: Article in Journal/Newspaper
Language:English
Published: European Association of Geoscientists and Engineers, EAGE 2016
Subjects:
/dk/atira/pure/sustainabledevelopmentgoals/climate_action
name=SDG 13 - Climate Action
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water
name=SDG 14 - Life Below Water
Arctic
Svalbard
Online Access:https://research.vu.nl/en/publications/735e9b13-a6f6-4e45-a2c1-c3cff45bc97d
https://hdl.handle.net/1871.1/735e9b13-a6f6-4e45-a2c1-c3cff45bc97d
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Summary:Both thermogenic and biogenic gas were encountered during scientific drilling on Svalbard, Arctic Norway. The thermogenic gas has been encountered in an interval at 650-703 m depth, spanning both the lower part of the caprock, an organic-rich shale unit with subordinate siltstone intervals, and the upper part of the siliciclastic reservoir targeted for CO2 storage. Both water injection tests and gas flow tests were conducted to establish the formation injectivity and production capability of this interval. In this contribution, we investigate the organic rich shale interval in detail, integrating well data with direct observations on outcrop analogues, to present a conceptual model of the reservoir-cap rock interface.

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