中国CO2驱油与埋存技术及实践  

Technologies and practice of CO2 flooding and sequestration in China

作　　者：胡永乐[1] 郝明强[1] 陈国利[2] 孙锐艳[2] 李实[1] HU Yongle;HAO Mingqiang;CHEN Guoli;SUN Ruiyan;LI Shi(Research Institute of Petroleum Exploration & Development,PetroChina,Beijing 100083,China;Jilin Oilfield Co.Ltd.,PetroChina,Songyuan 138000,China)

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]中国石油吉林油田公司,吉林松原138000

出　　处：《石油勘探与开发》2019年第4期716-727,共12页Petroleum Exploration and Development

基　　金：国家科技重大专项“CO2捕集、驱油与埋存关键技术及应用”(2016ZX05016)

摘　　要：系统阐述近年来中国CO2驱油和埋存理论及技术的最新进展,并提出了下一步发展方向。基于陆相油藏地质特征,发展和形成了5个方面的理论和关键技术:①丰富了对陆相油藏CO2与原油间的组分传质特征、微观驱油和不同地质体埋存机理的认识;②形成了CO2驱油藏工程参数设计、注采调控、开发效果评价等油藏工程技术系列;③发展了CO2分层注气工艺、高效举升工艺、井筒腐蚀在线监测与防护等采油工程技术系列;④创新了CO2捕集、管道输送、地面注入、产出气循环注入等地面工程技术系列;⑤形成了CO2驱油藏监测、安全环保评价等配套技术系列。在此基础上提出了下一步技术发展方向:①突破低成本CO2捕集技术,提供廉价的CO2气源;②改善CO2与原油之间混相的技术,提高驱油效率;③研发提高CO2波及体积技术;④研制更高效举升工具和技术;⑤加强CO2埋存监测基础理论研究和关键技术的攻关。吉林油田的实践表明CO2驱油与埋存技术在中国具有广阔的应用前景。The latest advancement of CO2 flooding and sequestration theory and technology in China is systematically described,and the future development direction is put forward.Based on the geological characteristics of continental reservoirs,five theories and key technologies have been developed:(1) Enriched the understandings about the mass transfer characteristics of components between CO2 and crude oil in continental reservoirs,micro-flooding mechanism and sequestration mechanism of different geological bodies.(2) Established the design method of reservoir engineering parameters,injection-production control technology and development effect evaluation technology of CO2 flooding,etc.(3) Developed a series of production engineering technologies such as separated layer CO2 injection technology,high efficiency lifting technology,on-line wellbore corrosion monitoring and protection technology.(4) Innovated a series of surface engineering technology including CO2 capture technology,pipeline CO2 transportation,CO2 surface injection,and production gas circulation injection,etc.(5) Formed a series of supporting technologies including monitoring,and safety and environmental protection evaluation of CO2 flooding reservoir.On this basis,the technological development directions in the future have been put forward:(1) Breakthrough in low-cost CO2 capture technology to provide cheap CO2 gas source;(2) Improve the miscibility technology between CO2 and crude oil to enhance oil displacement efficiency;(3) Improve CO2 sweeping volume;(4) Develop more effective lifting tools and technologies;(5) Strengthen the research of basic theory and key technology of CO2 storage monitoring.CO2 flooding and sequestration in the Jilin Oilfield shows that this technology has broad application prospects in China.

关 键 词：陆相油藏 CO2驱油与埋存 提高采收率 油藏工程 注采工程 地面工程 发展方向 

分 类 号：TE327[石油与天然气工程—油气田开发工程]