从端部到跟部注空气提高采收率的新方法  

TOE-TO-HEEL AIR INJECTION NEW METHOD Of EOR

作　　者：李伟超[1] 吴晓东[1] 刘平[2] 

机构地区：[1]中国石油大学石油工程教育部重点实验室,北京昌平102249 [2]中国石油大学石油工程学院,山东东营257061

出　　处：《西南石油大学学报（自然科学版）》2008年第1期78-80,共3页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：中国石油化工股份有限公司科技攻关项目(P05034);中国石油天然气股份公司科技攻关项目(ZX0507-01)

摘　　要：从端部到跟部注空气(THAI)技术是一项开采稠油油藏、提高采收率的重要技术。根据国内外学者的研究及THAI技术的成功应用实例,分析了THAI技术的作用原理,并在此基础上,将THAI技术与其他常规稠油油藏开采技术进行了对比,指出了该技术的优势及特点,THAI避免了传统的火烧油层(ISC)工艺中使用垂直注入井与生产井过程中驱替距离长的缺点,有效地提高了采收率。讨论了点火温度、注气强度、注入压力、布井方式等主要工艺参数对THAI技术的影响,为各参数的优化设计打下了基础。Toe-To-Heel Air Injection(THAI)on the horizontal section of horizontal well is a effective technology to exploit heavy oil and enhance oil recovery.On the basis of existing research and successful application of this technology,the mechanism of THAI is studied;then,the differences between THAI and other technologies used in heavy oil exploitation are compared.Through the comparison,the advantages and the application ranges of THAI are presented.Comparing with traditional ISO technique which requires long distance displacing between vertical injector and producer,the displacing distance of THAI is very short with higher recovery.In addition,several factors influencing the application of THAI are analyzed,such as ignition temperature,gas injection intensity,injection pressure,well pattern and so on.

关 键 词：稠油 水平井 注空气 提高采收率 

分 类 号：TE327[石油与天然气工程—油气田开发工程]