均质复合油藏试井分析方法

TRASIENT PRESSURE BEHAVIOR IN A HOMOGENEOUS COMPOSITE RESERVOIR

油田为提高原油采收率，采取注水、注气、注聚合物等增产措施，要了解地下动态、试井资料是必不可少的。因此，本文提出了考虑井筒储存和表皮效应影响的均质复合油藏试井理论模型，建立了数学模型，用Ｌａｐｌａｃｅ变换法求得其解，通过参数组合绘制出了新的均质复合油藏典型曲线，并分析了其导数典型曲线的特点。同时还以油田实例说明了新的复合油藏典型曲线分析不稳定试井数据的应用。

This paper presents a homogeneous composite reservoir model in which the wellborestorage and skin effects are included.A mathematical model describing a homogeneous com-posite reservoir is given and solved by Laplace transformation.The composite reservior type-curves are given and their characteristics are dicussed.This paper presents one field example to demonstrate the application of the type-curves toanalyze pressure transient test data.