摘要
地层厚度、倾斜和地层的各向异性等均能使地层流体在流动过程中的流线分布发生变形。据此，提出了一种电缆地层测试时由流线分布导出的流体流动新模型。将常规计算的稳态压降、模拟出的各向异性压降与各向同性压降等所导出的渗透率值与井壁取心值进行了比较，结果表明，各向异性压降模拟的渗透率值误差在－５．０％～７．５％之间，而常规计算的渗透率值误差则在－１５％～３２％之间，各向异性模拟的精度要比常规计算量的精度高得多。
According an assumption that the formation thickness, anisotropy and bed boundaries may change the formation fluid flow distribution, a new fluid flow model is given for pressure response to wireline formation testing (WFS). The model is capable of estimating the formation pressure and permeability both quickly and easily Comparing the values of permeability,drived from the conventional pressure drawdown method,anisotropy pressure drawdown modelling and homogeneity pressure drawdown modelling with the core analysis premeability,an average error in anisotropy modelling is -5.0%～7.5% and -15%～32% calculated by the conventional method,respectively. The result shows that the anisotropy modelling has a higher precision.
出处
《江汉石油学院学报》
CSCD
北大核心
1997年第3期42-45,共4页
Journal of Jianghan Petroleum Institute
关键词
流体流动
测井解释模型
电缆地层测试
测井
production logging
formation testing
fluid flow
log interpretation model
percolation model
anisotropy
