双重介质复合油气藏试井分析模型及压力动态特征

WELL TESTING ANALYSIS MODEL AND PRESSURE DYNAMIC CHARACTERISTICS OF COMBINED RESERVOIR WITH DUAL MEDIA,NGI

文章针对油气田钻井、完井、开采过程中并周围产生污染带以及地层本身的非均质情况，建立了考虑表皮效应和井筒储存的双重介质复合油气藏模型，通过拉氏变换、求解和数值反演，给出该问题的现代试井样板曲线。文章分析了多种因素对压力动态特征的影响，提出该模型可用于四川裂缝型气藏的现代试井分析。

Aimed at the polluted zone produced around well in the course of drilling, completing and producing and the heterogeneous condition of strata, the model of eombined reservoir with dual media considered skin effect and wellborn storage is set up. Through Laplace transform,extracting and numerical inversion, the typical curve of modern well testing is presented. The influence of factors on pressure dynamic characteristics is allalysed. Using the model,medern well testing analysis of Sichuan fractured gas reservoir is proposed out.