Michie, EAH, Yielding, G and Fisher, QJ orcid.org/0000-0002-2881-7018 (2018) Predicting Transmissibilities of Carbonate-hosted Fault Zones. Geological Society Special Publications, 459 (1). pp. 121-137. ISSN 0305-8719
Abstract
It is common practice to incorporate deterministic transmissibility multipliers into simulation models of siliciclastic reservoirs to take into account the impact of faults on fluid flow, but this not common practice in carbonate reservoirs due to the lack of data on fault permeability. Calculation of fault transmissibilities in carbonates is also complicated by the variety of mechanisms active during faulting, associated with their high heterogeneity and increased tendency to react with fluids. Analysis of the main controls on fault rock formation and permeability from several carbonate-hosted fault zones is used to enhance our ability to predict fault transmissibility. Lithological heterogeneity in a faulted carbonate succession leads to a variety of deformation and/or diagenetic mechanisms, generating several fault rock types. Although each fault rock type has widely varying permeabilities, trends can be observed dependent on host lithofacies, juxtaposition and displacement. These trends can be used as preliminary predictive tools when considering fluid flow across carbonate fault zones. At lower displacements (<30 m), fewer mechanisms occur, creating limited fault rock types with a narrow range of low permeabilities, regardless of lithofacies juxtaposition. At increased displacements, more fault rock types are produced at juxtaposition of different lithofacies, with a wide range of permeabilities.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 The Author(s). Published by The Geological Society of London. This is an author produced version of a paper published in Geological Society Special Publications. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | fault rock; carbonates; microstructures; normal faults; hydraulic behaviour; transmissibility; geomodelling |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Institute for Applied Geosciences (IAG) (Leeds) |
Funding Information: | Funder Grant number ADMA-OPCO No External Ref |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Apr 2017 14:15 |
Last Modified: | 25 May 2018 00:38 |
Status: | Published |
Publisher: | Geological Society |
Identification Number: | 10.1144/SP459.9 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:115072 |