gas slippage

Darcy law is the principle law of percolation theory, but percolation of low permeability gas reservoir has its specific characteristics because of the simultaneity of kickoff pressure and gas slippage effect, and the study on them seems to be contradicted.

达西定律是渗流的基本规律，但低渗透致密气藏的渗流还有其特殊性，启动压力和气体的滑脱效应同时存在，两种现象的研究又似乎相互矛盾。

Gas slippage phenomenon and change of permeability when gas flowes in tight porous media

渗流气体滑脱现象与渗透率变化的关系

According to the comparison and analysis on the obtained relative permeability curve, the changes of low permeability core actuating pressure, gas slippage effect, CO2 solubility, and fluid viscosity had effect on test results of CO2 flooding.

对得到的相渗曲线对比分析可知：CO2驱时低渗透岩心启动压力、气体滑脱效应、CO2溶解度以及流体粘度变化均对测试结果存在影响。

Research on Gas Slippage Effect of Low Permeability and Tight Gas Reservoir

低渗透致密气藏的滑脱效应研究