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Commonly occurring matrix permeability and fracture aperture values are chosen.
This depends heavily on the hydraulic fracture spacing, the reservoir matrix permeability and reservoir fluid properties.
Shale gas reservoirs have ultra-low matrix permeability and consist of matrix and natural fracture systems.
The increased matrix permeability and the looser cementation under vibration might also play a role in reducing the plugging effect.
It was concluded that SAGD is not suitable due to low matrix permeability and low fracture porosity.
These equations can be used to calculate the effective fracture half-length, matrix permeability and length of micro-fractures.
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This results in layer-averaged fracture and matrix permeabilities and van Genuchten fitting parameters.
The clastic rocks show low matrix permeabilities and high thermal conductivities ranging from 3.17 to 3.71 W/(m·K).
A set of 15 different CGD and FFGD tests were carried out for two different matrix permeabilities and oil fluids with five various production rates.
Welltest permeability is mainly controlled by fracture permeability, matrix block size and fracture aperture, and it is not very sensitive to matrix permeability, matrix and fracture compressibilities, and matrix and fracture porosities.
Next, the production data for naturally fractured carbonate samples (matrix and fracture permeability), samples with no fracture (matrix permeability only) and samples with fracture only (near zero matrix permeability) for unsteady state conditions are obtained.
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