国外致密气藏钻完井技术现状与启示  

Current status and enlightenments of overseas drilling and completion technology for tight gas reservoirs

作　　者：姜瑞忠[1] 王平[1] 卫喜辉[1] 徐建春[1] 梁宇 

机构地区：[1]中国石油大学(华东),山东青岛266555 [2]University of Wyoming,USA

出　　处：《特种油气藏》2012年第2期6-11,15,共7页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金项目“超临界二氧化碳在非常规油气藏中应用的基础研究”(51034007)

摘　　要：目前非常规气藏尤其是致密气藏的开发在国内外受到普遍关注,国外在致密气藏钻井、完井、压裂等方面形成一系列配套技术,其成功的开发实践将为中国致密气藏开采提供宝贵的经验。在系统调研并分析国外致密气藏钻完井及配套技术的基础上,借鉴国外致密气藏的开发经验,得出以下几点启示:一是综合应用小井眼、快速钻井等技术降低成本,减小费用;二是储层及环境保护须贯穿致密气藏钻完井过程的始终;三是水平井、多分支井技术有助于提高油藏接触面积,提高单井产量及采收率;四是气藏描述技术有助于研发有针对性的钻完井技术。上述分析研究结论将对中国致密气藏钻完井技术起到有效地推动作用。The development of unconventional gas reservoirs,especially tight gas reservoir,has drawn much attention both at home and abroad.A set of matching technologies with regards to drilling,completion and fracturing for tight gas reservoirs has been formed in foreign countries,and their successful cases can offer valuable experiences for tight gas exploitation in China.Some enlightenments are generalized from systematic investigation and analysis of foreign technologies in drilling and completion for tight gas reservoirs: first,to reduce cost by applying techniques such as slim hole and fast drilling;second,to protect reservoir and environment throughout the whole process of drilling and completion;third,to improve reservoir contact area,per well production and recovery factor with horizontal well and multilateral well;and fourth,to research and develop appropriate drilling and completion techniques through gas reservoir description.These research and conclusions will promote domestic drilling and completion technology for tight gas reservoirs.

关 键 词：致密气藏 钻井 完井 压裂 启示 国外 

分 类 号：TE24[石油与天然气工程—油气井工程]