无限大地层中水平井排瞬态压力的进展性分析

ADVANCED PRESSURE TRANSIENT ANALYSIS FOR HORIZONTAL WELLS IN THE INFINITY STRATUM

本文利用瞬时源函数和Ｎｅｗｍａｎ乘积法分析了无限大地层中水平井水平排列和垂直排列两种情况下的井底瞬态压力特征．通过对计算结果的讨论，我们得出水平排列时ｄＰＤ／ｄｌｎｔｄ为１．０；垂直排列时ｄＰＤ／ｄｌｎｔＤ为０．５．由于目前国内外还没有文章报过这方面研究的新进展，因此该结果对地下流体资源开发等领域的压力试井分析有一定的指导意义．

In this paper, we use the instantaneous source function and Newman product method to analyse the pressure transient characteristic at the bottom of horizontal wells those ranged in level case or in uprightness case in infinity stratum. We educe the dPD/dlntD is about 1.0 in level set case otherwise the dPD/dlntD is about 0.5 in uprightness set case via the discussion of the result. Owing to there has been a lack of new evolvement reported in this subject, so it has definite significance for the guidance of the pressure test analysis in domains such as subterranean fluid reservoir exploitation.