Research Article
A Comparative Study on Fracture Characteristics of the Red Sandstone under Water and Nitrogen Gas Fracturing
Figure 16
Plots of pore pressure distribution during fracturing (II). (a) W1′, (b) G1′, (c) W2′, (d) G2′, (e) W3′, and (f) G3′.
(a) |
(b) |
(c) |
(d) |
(e) |
(f) |