Feng-Lan Zhao

A coupled gas–water two-phase productivity model for oversaturated deep coalbed methane reservoirs integrated with a multi-scale main-branch-cleat fracture network

Deep oversaturated coalbed methane (CBM) reservoirs contain abundant in situ free gas, and hydraulic fracturing forms a multi-scale complex fracture network with main fractures, branch fractures, and cleats. Most current productivity models target undersaturated shallow coal seams, neglecting the coexistence of free an...