Ion Diffusion Behavior between Fracturing Water and Shale and Its Potential Influence on Production

Figure 2

Shale samples of Case 2. (a) Six small samples (1 cm × 1 cm × 1 cm); (b) one large sample (1 cm × 2 cm × 3 cm) of the same volume with six small samples in (a).

(a)

(b)