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

Figure 1

Location of the Liulin area: (a) locations of the Ordos basin in the China map; (b) general location of the eastern margin of the Ordos basin in the tectonic division map; (c) specific locations of the CBM blocks and wells in the eastern margin of the Liulin area; (d) composite stratigraphic column showing coal-bearing formations in the Liulin area.