Heinemann, N., Wilkinson, M., Haszeldine, R.S., Fallick, A.E. and Pickup, G.E. (2013) CO2 sequestration in a UK North Sea analogue for geological carbon storage. Geology, 41(4), pp. 411-414. (doi: 10.1130/G33835.1)
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Abstract
The Fizzy discovery, a southern North Sea (UK) gas accumulation with ~50% natural CO<sub>2</sub> content, provides an opportunity to study the long-term quantity of CO2-related mineral reaction as an analogue for engineered CO<sub>2</sub> storage. The reservoir contains diagenetic dolomite typical of the formation; to identify and quantify any sequestration-related dolomite is challenging. To this end, CO<sub>2</sub> was extracted by stepwise extraction from dolomite from both the Fizzy discovery and equivalent sandstones from a low-CO<sub>2</sub> location. Between 0% and 22% of the dolomite in the Fizzy discovery precipitated due to the high CO<sub>2</sub> concentration. This corresponds to 11% ± 8% of the recent high-CO<sub>2</sub> charge sequestered as dolomite, a relatively low proportion after ~50 m.y. of potential CO<sub>2</sub>-water-rock interaction.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Fallick, Professor Anthony |
Authors: | Heinemann, N., Wilkinson, M., Haszeldine, R.S., Fallick, A.E., and Pickup, G.E. |
College/School: | College of Science and Engineering > Scottish Universities Environmental Research Centre |
Journal Name: | Geology |
ISSN: | 0091-7613 |
ISSN (Online): | 1943-2682 |
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