Factors Controlling Shale Reservoirs and Development Potential Evaluation: A Case Study

Figure 3

Characteristics of the shale fractures in the Longmaxi Formation. (a) High-angle fractures filled with calcite; (b) high-angle fractures filled with calcite; (c) unfilled high-angle fractures; (d) lamellation; (e) diagenetic shrinkage fractures; and (f) diagenetic shrinkage fractures.

(a)

(b)

(c)

(d)

(e)

(f)