Title
Effect of in-situ Stress Alterations on Flow through Faults and Fractures in the Cap Rock
Author
Antropov, A.
Lavrov, A.
Orlic, B.
Contributor
Dixon, T. (editor)
Laloui, L. (editor)
Twinning, S. (editor)
Publication year
2017
Abstract
Cap-rock integrity is of paramount importance during injection and subsequent long-term storage of CO2 in the subsurface. Preexisting (natural) and man-induced fractures in the cap rock represent potential flow paths out of the storage formation. In this study, a first-order semi-analytical model of flow through a vertical fracture penetrating cap rock is constructed taking the stressdependent fracture permeability into account. The model is then applied to study the effects of in-situ stress normal to fracture on the flow rate through the fracture. The flow rate increases nonlinearly with the reservoir pressure, which is due to a combined effect of nonlinear fracture deformation law and the cubic law governing the flow rate.
Subject
Cap rock
CO2
Coupled model
Fracture
Geomechanics
Leakage
Permeability
Geological Survey Netherlands
2015 Energy
2017 Geo
AG - Applied Geosciences
ELSS - Earth, Life and Social Sciences
To reference this document use:
http://resolver.tudelft.nl/uuid:3671be59-3ed2-4393-974d-c79d46706261
DOI
https://doi.org/10.1016/j.egypro.2017.03.1449
TNO identifier
781350
Publisher
Elsevier Ltd
ISSN
1876-6102
Source
Energy Procedia, 114 (114), 3193-3201
Document type
conference paper