Study on the Origin and Fluid Identification of Low-Resistance Gas Reservoirs

Figure 1

Scanning electron microscope picture of the second Wu member of well 017. (a) W1, 3094.33 m, the intergranular filling in illite/montmorillonite mixed-layer minerals; (b) W3, 3361.37 m, dissolved pore-filled I illite/montmorillonite mixed-layer minerals; (c) W1, 3099.27 m, intergranular filling of illite/montmorillonite mixed-layer minerals and bridging illite; (d) W3, 3364.67 m, intergranular pores and grain-like honeycomb illite/montmorillonite mixed-layer minerals.

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