压裂水平井井网参数自动优化研究  

Automatic parameters optimization for fractured horizontal well pattern

作　　者：宋道万[1] 张凤喜 安永生[3] 张存广[4] 隋先富[3] 

机构地区：[1]中石化胜利油田分公司,山东东营257015 [2]上海石油天然气有限公司,上海200041 [3]石油工程教育部国家重点实验室中国石油大学,北京102249 [4]中油冀东油田分公司,河北唐海063200

出　　处：《特种油气藏》2009年第4期101-103,共3页Special Oil & Gas Reservoirs

基　　金：国家重大专项"大型油气田及煤层气开发"子课题"复杂结构井优化设计与控制关键技术"(2008ZX05009-05)部分研究成果

摘　　要：应用压裂水平井井网开发低渗透油气藏时,选择合理的井网参数、裂缝参数是获得良好开发效果的重要保证。针对常规正交优化算法存在的局限性,应用遗传算法对水平井长度、裂缝条数、裂缝半长、裂缝导流能力、井距、排距等参数进行了优化设计研究,利用数值模拟软件与编程软件的调用接口,编制了压裂水平井井网自动优化软件,实现了智能化操作,极大提高了工作效率。应用结果表明,利用所建立的方法进行压裂水平井井网参数优化,优化结果比常规正交优化算法提高10%,具有较强的实用性。Rational well pattern parameters and fracture parameters are important guarantee for achieving good development result when developing low permeability reservoirs with fractured horizontal well pattern. As the conventional orthogonal optimization algorithm has its limitations, the genetic algorithm has been used to optimize parameters such as horizontal well length, the number of fractures, fracture half-length, fracture conductivity, well spacing, and row spacing. The calling interface between numerical simulation software and programming software is used to prepare automatic optimization software for fractured horizontal well pattern, thus realized intelligent optimization and greatly improved work efficiency. Application shows that the optimization result of the method established in this paper is 10% improved than that of the conventional orthogonal optimization algorithm for fractured horizontal well pattern parameters, and is highly practical.

关 键 词：低渗透油藏 压裂 水平井 参数优化 遗传算法 

分 类 号：TE319[石油与天然气工程—油气田开发工程]