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Shale gas simulation considering natural fractures, gas desorption, and slippage flow effects using conventional modified model

Fig. 9 Schematic map of vertical well, fractured vertical well, horizontal well, fractured horizontal well in shale gas reservoirs

The input rock table considers the changes of rock permeability versus pressure to describe the gas slippage flow effects. In addition, dual-porosity dual-permeability models coupled with local grid refinement method are used to distinguish the impacts of natural fractures and hydraulic fractures on shale gas production with the comparison of