Research Article

Numerical Simulation Study of Fines Migration Impacts on an Early Water Drainage Period in Undersaturated Coal Seam Gas Reservoirs

Table 2

The assumed deviation factor of water velocity response to pure water velocity and coal fines concentration.

1.141.040.7620.4240.4110.1340
0.90.80.60.40.20.10
0.050.010.020.050.060.080.1