论文部分内容阅读
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 and well test analysis technology is still a new topic at home and abroad, which is difficult and can be used for reference. However, studying the distribution and changes of formation pressure during the development of horizontal wells is the precondition for solving the well test analysis. For anisotropic stratified horizontal well, instantaneous point source solution of pseudo pressure of the reservoir is deduced. By using the instantaneous source function and the Newman product principle, the Green function of various horizontal wells in the reservoir is given. Obtain the analytic expression of pressure distribution in formation, and for some commonly used levels and layout, give a list of Green functions for ease of application. The method described in this article also applies to horizontal wells in a sharp corner.