In Situ Stress Distribution and Its Control on the Coalbed Methane Reservoir Permeability in Liulin Area, Eastern Ordos Basin, China

Figure 4

Stock chart of injection/falloff well test and in situ stress measurement parameters in Liulin area. : represents the burial depth; : represents the initial reservoir pressure;: represents closure pressure; : represents fracture pressure; : represents the minimum horizontal principal stress; : represents the maximum horizontal principal stress; : represents vertical stress; : represents the initial reservoir pressure gradient; : represents closure pressure gradient; : represents fracture pressure gradient; : represents the minimum horizontal principal stress gradient; : represents the maximum horizontal principal stress gradient; : represents the permeability; Temp: represents the reservoir temperature.