Geochemically induced shear slip in artificially fractured dolomite- and clay-cemented sandstone

Samantha J. Fuchs,Dustin Crandall,Johnathan E. Moore,Mayandi Sivaguru,Bruce W. Fouke,D. Nicolas Espinoza,Ange-Therese Akono,Charles J. Werth

International Journal of Greenhouse Gas Control（2021）

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摘要

•Sandstone fractures were exposed to acidic or reservoir-simulated brine flow•Acidic brine flow induced greater shear slip than reservoir conditions•Acidic brine dissolved cementing dolomite, reducing fracture toughness•Fracture surface roughness and porosity increased with carbonate dissolution

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Geologic carbon sequestration,subsurface flow,shear stress,carbonate,Bandera Gray

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