A review of SAGD technology development and its possible application potential on thin-layer super-heavy oil reservoirs  

作　　者：Guodong Cui Ting Liu Jingyu Xie Guanghui Rong Lihong Yang 

机构地区：[1]Faculty of Engineering,China University of Geosciences,Wuhan 430074,China [2]The 2th Oil Production Plant of PetroChina Changqing Oilfield Company,Qingyang 710021,China [3]School of Resources and Geosciences,China University of Mining and Technology,Xuzhou 221116,China [4]The 12th Oil Production Plant of PetroChina Changqing Oilfield Company,Xi’an 710000,China [5]Sinopec Petroleum Exploration and Production Research Institute,Beijing 100083,China

出　　处：《Geoscience Frontiers》2022年第4期1-10,共10页地学前缘（英文版）

基　　金：financially supported by the Fundamental Research Funds for the Central Universities,China University of Geosciences(Wuhan)(Grant Nos.CUGGC09 and CUG200637);Opening Fund of Key Laboratory of Unconventional Oil&Gas Development(China University of Petroleum(East China)),Ministry of Education(Grant No.19CX05005A-201);the Sinopec Science and Technology Department(Grant Nos.P2006 and 33550000-21-ZC0611-0006)。

摘　　要：Super-heavy oil is a significant unconventional energy source,and more than 30 years of research have shown that steam-assisted gravity drainage(SAGD)technology is suitable for thick super-heavy oil reservoirs.Recently,more and more thin-layer super-heavy oil reservoirs have been discovered in China,while their deep buried depth and serous heterogeneity make the existing SAGD technology difficult to apply,so it is urgent to improve the existing SAGD technology for the thin-layer super-heavy oil.To this end,this paper focuses on the enlightenment of field application in SAGD technology.Firstly,based on typical SAGD field projects,the development history of SAGD technology in the world was reviewed,and the influence of reservoir physical properties on the application of SAGD technology in thin-layer superheavy oil reservoirs was analyzed.Secondly,the well pattern,wellbore structure,pre-heating,artificial lift,and monitor technique of SAGD were detailed described,and their adjustment direction was expounded for the development of thin-layer super-heavy oil reservoirs.Lastly,the gas-and solventassistant SAGD were comprehensively evaluated,and their application potential in thin-layer superheavy oil reservoirs was studied.The research results can provide theoretical guidance for the application of SAGD technology in thin-layer super-heavy oil reservoirs.

关 键 词：SAGD Thin-layer super-heavy oil Development technology Multimedia assisted SAGD 

分 类 号：TE345[石油与天然气工程—油气田开发工程]