Some geomechanical aspects of geological CO2 sequestration
conference paper
Reservoir depletion and subsequent CO 2 injection into the depleted geological reservoir induce stress changes that may mechanically damage top seal and wells, or trigger existing faults, creating the leakage pathways for CO 2 escape from the reservoir. The role of geomechanics is to assess the mechanical impact of stress changes on seals, wells and faults. Since many hydrocarbon fields are geometrically complex and irregular, and the rock properties are spatially variable, such an assessment can be conveniently done on a numerical model of the field under study. Based on numerical analyses, recommendations can be given regarding the overall suitability of the depleted geological reservoir for CO 2 disposal and safe CO 2 injection.
TNO Identifier
466485
ISBN
9781622761760
Source title
12th International Conference on Computer Methods and Advances in Geomechanics 2008, 1 October 2008 through 6 October 2008, Goa. Volume 3
Pages
2204-2212
Files
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