Fluid-dependent shear slip behaviors of coal fractures and their implications on fracture frictional strength reduction and permeability evolutions

Volume: 212, Pages: 103235 - 103235
Published: Aug 1, 2019
Abstract
During coalbed methane (CBM) formation stimulation, large volumes of fracking fluids are injected, and these fluids include water, hot steam, CO2, N2, foams, and their mixtures. These injected fluids can potentially generate new fractures and/or reactivate pre-existing faults/cleats. Coal, unlike other subsurface rocks, has systematic cleats that cause deterioration of the coal's mechanical strength. Unique to coal, fluid sorption-induced...
Paper Details
Title
Fluid-dependent shear slip behaviors of coal fractures and their implications on fracture frictional strength reduction and permeability evolutions
Published Date
Aug 1, 2019
Volume
212
Pages
103235 - 103235
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