Technical and Economic Evaluation of CO 2 Capture and Reinjection Process in the CO 2 EOR and Storage Project of Xinjiang Oilfield

Liang Zhang, Songhe Geng, Linchao Yang, Yongmao Hao, Hongbin Yang, Zhengmiao Dong and Xian Shi
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Liang Zhang: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Songhe Geng: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Linchao Yang: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Yongmao Hao: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Hongbin Yang: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Zhengmiao Dong: Institute of Engineering and Technology, Xinjiang Oilfield Company, Karamay 834000, China
Xian Shi: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China

Energies, 2021, vol. 14, issue 16, 1-27

Abstract: CO 2 capture and reinjection process (CCRP) can reduce the used CO 2 amount and improve the CO 2 storage efficiency in CO 2 EOR projects. To select the best CCRP is an important aspect. Based on the involved equipment units of the CCRP, a novel techno-economic model of CCRP for produced gas in CO 2 EOR and storage project was established. Five kinds of CO 2 capture processes are covered, including the chemical absorption using amine solution (MDEA), pressure swing adsorption (PSA), low-temperature fractionation (LTF), membrane separation (MS), and direct reinjection mixed with purchased CO 2 (DRM). The evaluation indicators of CCRP such as the cost, energy consumption, and CO 2 capture efficiency and purity can be calculated. Taking the pilot project of CO 2 EOR and storage in XinJiang oilfield China as an example, a sensitivity evaluation of CCRP was conducted based on the assumed gas production scale and the predicted yearly gas production. Finally, the DRM process was selected as the main CCRP associated with the PSA process as an assistant option. The established model of CCRP can be a useful tool to optimize the CO 2 recycling process and assess the CO 2 emission reduction performance of the CCUS project.

Keywords: CO 2 EOR and storage; CO 2 capture efficiency; process optimization; economic evaluation; energy consumption (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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