低渗透油田的开发井网研究
摘 要
低渗透油田开发井网的部署是一项综合的研究内容，涉及的学科很多，本文重点从油藏工程的角度对开发井网的适应性、合理性进行论证。合理的井网对低渗透油田的开发具有重要作用，大量低渗透油田的开发实践表明：传统的正方形反九点井网及三角形井网对于中高渗油田比较适用，而对于低渗透油田具有一定局限性。
本文整体的研究思路是：首先，在对低渗透油田广泛调研的基础上，得出国内外低渗透油田储量的分布，以及国内外低渗透油田的开发现状。说明低渗透油田所占的比例越来越大，是今后相当一个时期内增储上产的主要资源基础。其次，系统地归纳了低渗透油田注采井网，并进一步明确了低渗透油田井网系统的控制因素。另外，详细地分析了低渗透油田注水开发井网的优化设计，以及低渗透油田合理井网密度的确定。最后，对具体的油田进行了实例分析。
关键词:低渗透油田；开发井网；井网密度；采收率；优化设计
Abstract
Development well pattern of the low permeability reservoir is a highly comprehensive research that is including many other subjects.This paper focuses on optimizing well spacing pattern in low permeability reservoir.The reasonable well pattern works very important effects during the period of the oil field development，an amount of low-permeability oil field development show that the traditional reverse square 9-shot well pattern and delta well pattern apply to high-permeability oil field，however there are some limits for the low-permeability oil field.
The whole idea of this paper is: first,based on the large number of low permeability reservoir development case worldwide,the paper concluded the present situation of low permeability reservoir.It indicated that the reserve of low permeability is the large scale in the reserve around the world,so it will play the important pole in the future.Secondly,systemically concluded low permeability oilfield development network injection and the factors in well spacing.In addition,detailed analysis the optimize design of water injection well pattern in low permeability reservoir and low permeability oilfield reasonable density of well identified.Finally,it is the specific example of a field.
Key words:Low permeability reservoir；development well pattern；well spacing；oil recovery；optimaization design
目 录
第1章 低渗透油田井网系统发展综述 1
1.1我国低渗透油田概况 1
1.2 低渗透油田开采现状 3
1.3 低渗透油田井网的演变与思考 8
第2章 低渗透油田开发注采井网系统设计探讨 14
2.1 低渗透油田注采井网系统的回顾 14
2.2 合理开发注采井网系统探讨 14
2.3 井网系统的控制因素分析 16
第3章 低渗透油田注水开发井网研究 20
3.1国内典型低渗透油田注水开发实践 20
3.2低渗透油田注水开发井网的优化设计 23
3.3低渗透油田注水开发合理井网研究 24
第4章 低渗透油田合理井网密度的确定 27
4.1 采收率与井网密度的关系 27
4.2合理井网密度的确定 28
第5章 实例分析 30
5.1 吉林油区注采井网调整 30
5.2 井、排距的确定 31
5.3不同井网实际开发效果 32
结 论 34
参考文献 35
致 谢 225
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