Supercritical CO2 fracking for enhanced shale gas recovery and CO2 sequestration: Results, status and future challenges

Advances in Geo-Energy Research

article

Junping Zhou¹  Nan Hu¹  Xuefu Xian¹  Lei Zhou¹  Jiren Tang¹  Yong Kang²  Haizhu Wang⁴ 

[1] State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University;College of Resources and Environmental Science, Chongqing University;Key Laboratory of Hubei Province for Water Jet Theory & New Technology;State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum

关键词: shale gas;    supercritical carbon dioxide fracturing;    competition adsorption;    CO2 enhanced shale gas recovery;    multiphase flow;    CO2 sequestration;   

DOI  :  10.26804/ager.2019.02.10

来源: Yandy Scientific Press

【 摘 要 】

Supercritical carbon dioxide(ScCO 2 )-based fracturing technology associating with CO 2 enhanced shale gas recovery is a promising technology to reduce the water consumption of shale gas production and could provide the potential for CO 2 sequestration. Advancing the understanding of complex gas shale reservoir behavior in the presence ofmultiphase and multicomponent gases (ScCO 2 , gaseous CO 2 and CH 4 etc.) via laboratory experiments, theoretical model development and field validation studies is very important. In this paper, the progress of some key scientific problems such as the mechanism of S c CO 2 drilling and completion, the ScCO 2 fracturing technology, the competition adsorption behaviors of CO 2 /CH 4 in shale, the coupled multiphase and multicomponent CO 2 /CH 4 flow during the CO 2 enhanced shale gas recovery process and the CO 2 sequestration potential in shale formation were discussed. Finally, the challenges of the technique will face and the further research is needed in the future is also exposed.

【 授权许可】

Unknown