The testing results of a low permeability reservoir indicate that this IPR equation can effectively evaluate the impact of starting pressure gradient on inflow performance.
某低渗透油田的测试分析结果表明，该IPR方程能有效评价启动压力梯度动态变化对油井动态的影响。
2
Considering effect of stress sensitivity, it derives new productivity equation, and calculates effect of permeability change on single well productivity.
在考虑储集层应力敏感影响的情况下，推导出新的产能方程，计算了渗透率变化对单井产能的影响。
3
Soil permeability coefficients regression equation performs exponent relation. Regression coefficients were between 0.88 to 0.99, and the equation analog effect was good.