The Fractured Permian Reservoir and Its Significance in the Gas Exploitation in the Sichuan Basin, China

Large gas reserves have been found in the Permian platform margin of Kaijiang-Liangping area Sichuan Basin SW China. They are assumed to be a widely developed reef–shoal reservoir. However, tight matrix reservoir cannot support high production using conventional development technology at deep subsurface. In this contribution, we analyze fractured reservoirs along strike-slip fault zones compiled data cores, well logging, and data, provide seismic description. It was shown that fractures their dissolution zones. The porosity permeability could increase by more than one 1–2 orders magnitude, respectively. anisotropic energy steerable pyramid process suggests strong heterogeneity, with localized damage zone. This fracturing has both positive negative effects, showing varied parameters pattern should adopt non-uniform pattern, order target “sweet spot” these reservoirs.