摘要
基于文献３中所介绍的数学分析方法（保角变换、镜像反映、等值渗流阻力和叠加原理），以及水平井拟三维的求解思想，提出了气藏多分支不完善水平气井产能的通用计算公式。利用取代比这一概念，提出了一种利用气藏直井产能评价结果进行多分支水平气井产能评价和计算的方法。其结果可对气藏多分支水平气井的产能和影响气井产能的因素进行研究。该计算方法还可用于气田多分支水平气井开发的早期评价。运用本文所提出的方法，对海洋某气田水平气井产量进行了计算，与文献中计算方法结果相比。
his paper gives the productivity of wells by conformal transformation and equivalent filterate resistance method.Comparing it with Табаков and Joshi's formula indicated that they didn't distinguish the assumption of uniform flux from the assumption of infinite conductivity.The influences of the branch number and the horizontal section length of multibranch wells on productivity are discussed.The productivity of horizontal well with longer horizontal section is greater than the productivity of multiple deviation wells,if the length of all branches is the same with horizontal section length of a horizontal well.The productivity formula given here is theoretically correct,and can be used in the design and the productivity estimation of multibranch wells.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1998年第4期69-72,共4页
Acta Petrolei Sinica
关键词
气藏
分支水平井
产能
计算方法
branch horizontal well productivity conformal transformation
