An Experimental Study on the Slippage Effects of Sandstone under Confining Pressure and Low Pore Pressure Conditions

Table 5

Contribution rates of the gas slippage effects (300°C).

Pore pressure (MPa)	Confining pressure (MPa)
	5	10	15	20	25	30
0.2	0.366277	0.563398	0.558867	0.573132	0.544965	0.510242
0.3	0.238843	0.43071	0.438063	0.36032	0.447634	0.303699
0.4	0.21023	0.302757	0.295092	0.322143	0.223602	0.257637
0.5	0.128744	0.201287	0.201405	0.208477	0.237109	0.208675