摘要
水平并试井分析技术在国内外尚属一个新的课题，难度大、可借鉴的方法少，而研究水平井开发过程中地层压力的分布和变化是解决该类井试井分析的前题。对分支水平井各向异性地层，导出气藏拟压力的瞬时点源解，利用瞬时源函数和Ｎｅｗｍａｎ乘积原理，给出气藏中各种分支水平井的Ｇｒｅｅｎ函数。求得地层抓压力分布的解析表达式，对于某些常用的水平并布局，给出了Ｇｒｅｅｎ函数一览表，便于应用。文中所述方法也适用于尖灭角内水平井的情形。
Horizontal well testing analysis is a new project with big difficulties and little ready methods at home and abroad. It is necessary to make clear the pressure distribution and change in horizontal well development.First,the instantaneous point-source solution of pseudo-pressure for anisotropic gas reservoir is derived.Then the instantaneous source function method and Newman multiplication principle are applied to give the Green's function for various multi-branched horizonal wells in gas reservior.Thus the analytic expressions of pseudo-pressure distribution are obtained.For easy to use,the table of Green's function for some simple arrangement of multi-branched horizontal wells is listed.These results are also applicable for the horizontal well in pitchout angles.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1996年第6期26-30,共5页
Natural Gas Industry
关键词
气藏
水平井
丛式井
压力分布
油气田开发
Gas reservoir,Horizontal well,Cluster wells,Pitchout,Green's function
