Research Article
An Experimental Study on Coal Fines Migration during Single Phase Water Flow
Figure 9
Permeability evolution under different flow velocity (confining pressure of 6 MPa).
(a) No coal fines intrusion |
(b) 80-120 mesh |
(c) 120-160 mesh |
(d) 160-200 mesh |
(e) 200-300 mesh |
(f) 300+ mesh |