鄂尔多斯盆地大牛地气田老区合理井网井距研究  

RATIONAL WELL PATTERN AND SPACING FOR DANIUDI GASFIELD,ORDOS BASIN

作　　者：耿燕飞[1] 韩校锋[2] 

机构地区：[1]中国石化华北分公司第一采气厂采气研究所 [2]中国石化华北石油工程有限公司测井分公司

出　　处：《天然气勘探与开发》2014年第3期52-56,7-8,共5页Natural Gas Exploration and Development

摘　　要：为了提高大牛地气田DK13井区采出程度和采收率,考虑该井区单井控制储量不均匀的特点,研究了该区的合理井网井距。分别用经济评价法、规定单井产量法、合理采气速度法、试井分析法、TOPAZE法、数值模拟法等七种方法进行论证,得出以经济极限井距为基础的技术合理井距,认为只要技术合理井距不低于其经济极限井距都是可行的。依据研究区沉积相及强非均质性特征,建议采用不规则井网,有利于有效控制储层及天然气富集区、提高砂体钻遇率,也便于气田开发后期进行调整。For DK13 well area in Daniudi gasfield,the single-well controlled reserves are uneven.So,rational well pattern and spacing should be deployed in order to enhance the recovery.In this study,some methods including economic evaluation,setting single-well production,rational gas-producing rate,well-test analysis,TOPAZE,and numerical simulation were adopted separately to obtain the technically rational well spacing based on economic limit spacing.That the former is no less than the latter is feasible.In addition,according to the properties of sedimentary facies and strong heterogeneity of the study area,a suggestion on irregular well pattern was made to effectively control the reservoir and accumulation zone,and to improve the drilling rate.It is also convenient to adjust scheme at the later stage of development.

关 键 词：DK13井区 井网井距 经济极限井距 技术合理井距 不规则井网 

分 类 号：TE324[石油与天然气工程—油气田开发工程]