苏里格气田东区提高Ⅰ+Ⅱ类井比例的技术及应用  

Technology for Improving the Proportion of TypeⅠandⅡ Wells in the East of Sulige Gasfield and Its Application

作　　者：李浮萍[1] 李跃刚[1] 赵忠军[1] 冯敏[1] 段志强[1] 吴小宁[1] 

机构地区：[1]中石油长庆油田分公司苏里格气田研究中心低渗透油气田勘探开发国家工程实验室,陕西西安710018

出　　处：《石油天然气学报》2014年第7期160-164,9,共5页Journal of Oil and Gas Technology

基　　金：国家工程实验室项目(2010E-23)

摘　　要：苏里格气田东区是气田目前开发的主力区块之一,其储层除具有苏里格气田典型的"四低"特点外,还表现出储层异常致密,非均质性非常强的特点,原有的开发技术在这一区块表现出一定的局限性,因而导致该区块井位优选难度大、Ⅰ+Ⅱ类井比例低的现状。针对这一区块储层地质条件差、开发难度高的特点,在开展地质综合研究的同时,完善地震采集、处理解释方法,地质与地震相结合,深化富集区的分布,探索形成了适合苏里格气田东区的井位优选技术。该技术以富集区筛选技术为核心,并综合应用丛式井井位优选技术和多层系立体开发技术,在开发实践中取得了较好的应用效果,为苏里格气田东区产能建设任务的顺利完成提供了技术保障。The East Region of Sulige Gasfield was one of the most important blocks of gas developement.There had the characters as low permeability,low pressure,low production and low abundance in the reservoir.Besides,there were abnormal tight reservoir and very strong heterogeneity in the east part of Sulige Gasfield.Therefore,the original development technology used in Sulige Gasfield was Limited inr production in the block,it caused low proportion of TypeⅠandⅡ wells.In the light of poor reservoir geologic condition and difficulty of development,a comprehensive geological research was carried out.At the same time,the seismic acquisition,processing and interpretation methods are improved,the distribution regularity of the enrichment area was studied deeply in combination with geological and seismic methods.A technology was developed for well location optimization in the east of Sulige Gasfield.Based on kernel of technical selection of the gas enrichment area,the technologies of cluster well selection and multi-layer development are comprehensively used and better application effect is obtained,it provides technical support for smooth implementation of productivity construction in the east of Sulige Gasfield.

关 键 词：苏里格气田东区 Ⅰ+Ⅱ类井 富集区筛选 井位优选 气田开发 

分 类 号：TE377[石油与天然气工程—油气田开发工程]