Research Article

Pore Structure and Limit Pressure of Gas Slippage Effect in Tight Sandstone

Table 5

Experimental results of limit pressure

TimeAuthor (10āˆ’3 m2)Gas (MPa)

2009 Li et al. [20]0.0053~0.25N20.68~7.16
2007Zhu et al. [24]0.01~1N20.5
2010Gao et al. [23]0.001~2N21
2011Ye et al. [21]0.024~0.244N2<7