摘要
在低渗透油藏中，含启动压力梯度的压力传播并非瞬时达到无穷远，其渗流规律与达西流的渗流规律差别很大。鉴于此，本文提出了准确描述含启动压力梯度的非达西渗流的试井分析模型，用一种稳定性极好的数值计算方法求得了无限大和有界油藏的典型曲线，并分析了其特征，为正确认识低渗透油气藏的特殊规律提供了一个好方法。
For the low permeability reservoir the propagation of the pressure with start - up pressure derivative is not reached the infinite boundary soon. The porous flow mechanics theory differ from Darcy flow,so one well test model for this kind of flow is present in this paper. One better steady numerical method is used to computing the type curves for the infinite and finite reservoir.The characteristics are analyzed. The method is good to understand the flow mechanics in the low permeability reservoir.
出处
《油气井测试》
1997年第1期1-4,11-73,共6页
Well Testing
关键词
低渗透油气藏
启动压力
压力梯度
试井解释
数学模型
数值分析
典型曲线
Low Permeability Pools, Starting Pressure, Pressure Gradient, Well Test Interpretation, Mathematical Model, Numerical Analysis, Typical Curve
