大庆油田低渗透油藏试井方法研究

Study on Well Test Method of Low-permeability Reservoir in Daqing Oilfield

针对大庆油田低渗透油藏试井分析中资料利用率低的问题,在研究前人理论的基础上,建立了一种不依赖于径向流直线段特征的试井解释方法——ISA法。同时,根据ISA法编制了试井资料分析软件,并应用该软件进行了实例分析。分析结果表明:ISA法处理后直观效果好,双对数拟合效果好。对大庆油田219口井(层段)试井资料进行了分析,分析平均误差为5.38%。

Armed at the problem of low information availability in well test analysis of the low-permeability reservoir,this article establishes a well test analysis method,that is ISA,which is not dependent on radial flow straightway characteristics in base of theoretical study of predecessor.At the same time,the well test analysis software is compiled according to the ISA.This software is used for example analysis,which shows that the visualized and matching effect after processing by ISA is good.The well test data of 219 wells in Daqing Oilfield are analyzed,with an average error of 5.38%.