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A simulation workflow for large-scale CO2 storage in the Norwegian North Sea

Lie, Knut-Andreas; Nilsen, Halvor Møll; Andersen, Odd; Møyner, Olav
Journal article
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URI
https://hdl.handle.net/1956/15482
Date
2016-06
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  • Department of Mathematics [1043]
Original version
https://doi.org/10.1007/s10596-015-9487-6
Abstract
Large-scale CO2 injection problems have revived the interest in simple models, like percolation and vertically-averaged models, for simulating fluid flow in reservoirs and aquifers. A series of such models have been collected and implemented together with standard reservoir simulation capabilities in a high-level scripting language as part of the open-source MATLAB Reservoir Simulation Toolbox (MRST) to give a set of simulation methods of increas- ing computational complexity. Herein, we outline the methods and discuss how they can be combined to create a flexible tool-chain for investigating CO2 storage on a scale that would have significant impact on European CO2 emissions. In particular, we discuss geometrical methods for identify- ing structural traps, percolation-type methods for identifying potential spill paths, and vertical-equilibrium methods that can effciently simulate struc- tural, residual, and solubility trapping in a thousand-year perspective. The utility of the overall workflow is demonstrated using real-life depth and thick- ness maps of two geological formations from the recent CO2 Storage Atlas of the Norwegian North Sea.
Publisher
Springer
Journal
Computational Geosciences
Copyright
Copyright Springer International Publishing Switzerland 2015

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