点源函数在水平井及多分支井试井理论中的应用  

Application of Point Source Function to Well Test Theory of Horizontal Wells and Multi-lateral Wells

作　　者：李树松 陈伟[2] 段永刚[2] 杨志兴 

机构地区：[1]中海油湛江分公司技术部,广东湛江524057 [2]西南石油大学,四川成都610500

出　　处：《石油钻采工艺》2009年第1期56-60,64,共6页Oil Drilling & Production Technology

摘　　要：水平井和多分支井已经成为海洋油田最重要的开发方式之一。以水平井和多分支井为研究对象,以点源函数理论为基础,综合运用油气藏地质、油气藏渗流理论、格林函数、偏微分方程及计算数学等多方面的知识,建立水平井和多分支井的不稳态渗流数学模型,对模型在拉氏空间内进行求解,并特别研究了鱼骨形多分支井的渗流特征。研究表明,多分支井的渗流特征与水平井相似,只是多出1个分支干扰过渡期。Horizontal wells and multilateral wells have already been one of most important technologies for developing offshore oilfield. Based on point source fimction, this paper sets up a mathematical model with unsteady-state seepage flow for horizontal wells and multilateral wells, with integration of multiple knowledge such as reservoirs geology, seepage theory, Green function, partial dif- ferential equations and computational mathematics. The model is solved in Laplace space. Percolation characteristics of fishbone multilateral well are studied especially.

关 键 词：水平井 多分支井 点源函数 渗流数学模型 

分 类 号：TE311[石油与天然气工程—油气田开发工程]