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Volume 14
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Article

Technical and Economic Evaluation of CO2 Capture and Reinjection Process in the CO2 EOR and Storage Project of Xinjiang Oilfield

by
Liang Zhang
1,2,*,
Songhe Geng
1,2,
Linchao Yang
1,2,
Yongmao Hao
1,2,
Hongbin Yang
1,2,
Zhengmiao Dong
3 and
Xian Shi
1
1
School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
2
Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum (East China), Ministry of Education, Qingdao 266580, China
3
Institute of Engineering and Technology, Xinjiang Oilfield Company, Karamay 834000, China
*
Author to whom correspondence should be addressed.
Energies 2021, 14(16), 5076; https://doi.org/10.3390/en14165076
Submission received: 20 July 2021 / Revised: 15 August 2021 / Accepted: 16 August 2021 / Published: 18 August 2021
(This article belongs to the Special Issue CO2 Enhanced Oil Recovery and Carbon Sequestration)
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Abstract

CO2 capture and reinjection process (CCRP) can reduce the used CO2 amount and improve the CO2 storage efficiency in CO2 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 CO2 EOR and storage project was established. Five kinds of CO2 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 CO2 (DRM). The evaluation indicators of CCRP such as the cost, energy consumption, and CO2 capture efficiency and purity can be calculated. Taking the pilot project of CO2 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 CO2 recycling process and assess the CO2 emission reduction performance of the CCUS project.
Keywords: CO2 EOR and storage; CO2 capture efficiency; process optimization; economic evaluation; energy consumption CO2 EOR and storage; CO2 capture efficiency; process optimization; economic evaluation; energy consumption

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MDPI and ACS Style

Zhang, L.; Geng, S.; Yang, L.; Hao, Y.; Yang, H.; Dong, Z.; Shi, X. Technical and Economic Evaluation of CO2 Capture and Reinjection Process in the CO2 EOR and Storage Project of Xinjiang Oilfield. Energies 2021, 14, 5076. https://doi.org/10.3390/en14165076

AMA Style

Zhang L, Geng S, Yang L, Hao Y, Yang H, Dong Z, Shi X. Technical and Economic Evaluation of CO2 Capture and Reinjection Process in the CO2 EOR and Storage Project of Xinjiang Oilfield. Energies. 2021; 14(16):5076. https://doi.org/10.3390/en14165076

Chicago/Turabian Style

Zhang, Liang, Songhe Geng, Linchao Yang, Yongmao Hao, Hongbin Yang, Zhengmiao Dong, and Xian Shi. 2021. "Technical and Economic Evaluation of CO2 Capture and Reinjection Process in the CO2 EOR and Storage Project of Xinjiang Oilfield" Energies 14, no. 16: 5076. https://doi.org/10.3390/en14165076

APA Style

Zhang, L., Geng, S., Yang, L., Hao, Y., Yang, H., Dong, Z., & Shi, X. (2021). Technical and Economic Evaluation of CO2 Capture and Reinjection Process in the CO2 EOR and Storage Project of Xinjiang Oilfield. Energies, 14(16), 5076. https://doi.org/10.3390/en14165076

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