井网控制程度对气藏采收率影响——以靖边气田A井区为例  

Effect of Well Pattern Control Level on Gas Reservoir Recovery:A Case Study of Well A in Jingbian Gas Field

作　　者：代金友[1] 任茜莹 穆中奇 DAI Jin-you;REN Qian-ying;MU Zhong-qi(College of Petroleum Engineering,China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249

出　　处：《科学技术与工程》2018年第30期70-74,共5页Science Technology and Engineering

基　　金：国家科技重大专项(2008ZX05009-004-03)资助

摘　　要：采收率影响因素众多,井网控制程度是主要因素之一。目前针对井网控制程度对采收率影响研究的较少,且缺乏规律性认识。以靖边气田A井区为例,提出了一种井网控制程度的计算方法——泄流面积法。应用该方法计算了小层井网控制程度,研究了井网控制程度对采收率影响规律。结果表明,靖边气田井网控制程度差异很大,介于3. 2%～81. 1%;现有井网对马五31较为适应(马五_1~3井网控制程度81. 1%),而对其他小层控制程度低、适应性差;井网控制程度与采收率线性正相关,井网控制程度每增加10%,采收率提高8. 5%。该认识具有实际意义,为掌握靖边气田储层开发特征、改进气田开发方式提供了依据。Recovery factor are affected by many factors,and well pattern control level is one of the main factors.Currently there are few studies on the effect of well pattern control level on recovery factor.Taking Jingbian gas field A area as an example,a calculation method of well pattern control level is developed based on drainage area method.This method is applied to calculate the well control level and its effect on the recovery factor.The result indicates that the well pattern control level in Jingbian gas field varies greatly,from 3.2%to 81.1%.Existing well pattern is more adaptable to the Ma5 3 1(well control level 81.1%),but has low control level and poor adaptability in other secondary formations.The well control level and recovery factor are linearly positive correlated.the recovery factor is increased by 8.5%for every 10%increase of well pattern control level.The result provide basis for reservoir characteristics depiction and development method improvement.

关 键 词：井网控制程度 采收率 影响 靖边气田 

分 类 号：TE377[石油与天然气工程—油气田开发工程]