Pore Structures of the Lower Permian Taiyuan Shale and Limestone in the Ordos Basin and the Significance to Unconventional Natural Gas Generation and Storage

Figure 10

Field emission scanning electron microscope (FE-SEM) images of limestone samples. The type of pores is relatively simple for limestone samples, with mainly (a–h) organic matter-hosted pores, (b, c, h) carbonate dissolution pores, and (i) pyrite intergranular pores. (a, b) Sample 2164.59; (c) sample 2164.73; (d, e) sample 2165.06; (f) sample 2185.55; (g) sample 2189.35; (h) sample 2195.28; (i) sample 2198.17.

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