Differential Occurrence Characteristics and Influence Factors of Reservoir Movable Fluids in Tight Gas: A Case Study of Shan 1 Reservoir in Yanchang Area

Figure 5

Pictures of pore and cement in scanning electron microscope. (a) Intergranular pore, Cn109 well, 2221.37 m. (b) Illite and quartz dissolution, Cn105 well, 2482.84 m. (c) Illite and chlorite, Cn105 well, 2482.99 m. (d) Chlorite and intercrystalline pore, Cn93 well, 2276.68 m. (e) Authigenic quartz, Cn105 well, 2483.14 m. (f) Kaolinite and illite, Cn105 well, 2483.14 m. (g) Chlorite, Cn105 well, 2487.58 m. (h) Calcite, Cn105 well, 2487.26 m. (i) Kaolinite, Cn 98 well, 2091.57 m.

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