Storage Properties of the Shale Reservoir of the Lower Keluke Formation in the Shihuigou Area: Implications for the Controlling Factors

Figure 5

Types and characters of the fractures. (a) Mineral joint fracture, SEM, 911.77 m. (b) Dissolved fracture, SEM, 916 m. (c) Microcracks between pyrite and mineral skeleton, SEM, 907 m. (d) Microcracks between bands of organic matter, SEM, 1021.6 m. (e) Tectonic fracture, 1047.90 m. (f) Abnormal pressure fracture, 1039.10 m.

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