西南石油大学学报(自然科学版) ›› 2011, Vol. 33 ›› Issue (1): 120-124.DOI: 10.3863/j.issn.1674-5086.2011.01.021

• 石油与天然气工程 • 上一篇    下一篇

水平井注采井网合理井间距研究

郑伟1 姜汉桥1 陈民锋1 矫健2   

  1. 1.中国石油大学石油工程教育部重点实验室,北京 昌平 102249; 2.海洋石油工程股份有限公司,天津 塘沽 300451
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-02-20 发布日期:2011-02-20

STUDY ON WELL SPACING OF HORIZONTAL WELL PATTERN

ZHENG Wei1 JIANG Han-qiao1 CHEN Min-feng1 JIAO Jian2   

  1. 1.MOE Key Laboratory of Petroleum Engineering,China University of Petroleum,Changping Beijing 102249,China;2.Offshore Oil Engineering Company Limited,Tanggu Tianjin 300451,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-02-20 Published:2011-02-20

摘要: 为解决水平井注采井网合理井间距问题,从水平井渗流理论出发,运用拟三维思想,采用保角变换的方法,利用势叠加原理推导了水平井注采井网稳态压力分布公式,得到水平井注采井网渗流场图。根据水平井单井控制面积与井间距的关系,推导了水平井井网井间距计算公式。分析认为:水平井井网井间区域中心附近存在难动用区,井间区域内可动用面积大小与注采井距、水平段长度、井间距有关。在此基础上,提出了水平井井网合理井间距的确定方法,对水平井注采井网在油田开发中的应用,特别是开发方案的设计提供了理论基础。

关键词: 水平井, 正对井网, 井间距, 渗流场, 可动用区域

Abstract: To determine the reasonable well spacing in horizontal well pattern,steadystate pressure distribution formula is derived using pseudo three dimensional method,conformal transformation and superposition principle method.The seepage field diagram of horizontal well pattern is plotted by programming.Based on the relationship between reservoir control area of a horizontal well and the well spacing of well pattern,well spacing formula is deduced.It is shown that the area near the center of interval region is not swept and is sensitive to horizontal well length,injectionproduction well spacing and well spacing.The method to determine the reasonable well spacing is proposed and it can provide an important basis for the development strategy.

Key words: horizontal well, regular rectangular well pattern, well spacing, seepage field diagram, swept region 

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