Micropore Throat Structure and Movable Fluid Characteristics of Chang 6₃ Tight Sandstone in Baibao Area of Ordos Basin

Figure 3

Pore structure characteristic diagram: (a) Bai 409,2153.6 m, dissolution hole; (b) Bai 413,2181.4 m, intergranular pores and dissolution pores; (c) Bai 406,1979.81 m, intergranular pore; (d) Bai 131,2056.3 m, a small amount of feldspar is dissolved to produce soluble pores; (e) Bai 406,1982.6 m, particle dissolution residual form; (f) Bai 427,1941.8 m, a small amount of filled kaolinite will petrochemical in some pores.

(a)

(b)

(c)

(d)

(e)

(f)