Phase transition and fluid backflow during the non-injection period in the Ordos CCS project, China
文献类型:期刊论文
作者 | Cai, Yuna3,4; Lei, Hongwu4; Li, Xiaochun4![]() |
刊名 | JOURNAL OF CLEANER PRODUCTION
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出版日期 | 2022-05-15 |
卷号 | 349页码:15 |
关键词 | Wellbore-reservoir coupled numerical model Shut-in Phase transition Backflow |
ISSN号 | 0959-6526 |
DOI | 10.1016/j.jclepro.2022.131493 |
英文摘要 | CO2 phase transition and fluid interaction in the wellbore-reservoir system after shut-in are two critical phenomena, which are crucial to predicting the long-term fate of CO2 in a deep saline aquifer storage project. In this study, a wellbore-reservoir coupled numerical model is developed based on the Shenhua Ordos Carbon Capture and Storage (CCS) project in China. This model can cope with the CO2 phase transition and is designed to investigate fluid behavior during the non-injection period. The simulation results show that the liquid-phase CO2 above a depth of ~300 m within the wellbore will transit to the gas phase during the non-injection period. The changes in the pressure and temperature associated with the phase transition are too small to be a safety hazard. Moreover, the injected CO2 will flow back to the wellbore and even flow into the top injection layer with the maximum permeability during the non-injection period; for a sufficiently long non-injection period, the formation water will also flow back. This process may redistribute the injected CO2 in the multi-layered reservoir. The parameter sensitivity analysis indicates that the permeability distribution of the reservoir has the most profound effect on the reservoir backflow process. These results provide an in-depth understanding of the fluid behavior within the wellbore-reservoir system after shut-in and offer theoretical guidelines for similar CCS project operations. |
资助项目 | National Key R&D program of China[2019YFE0100100] ; National Natural Science Foundation of China[41602255] ; National Natural Science Foundation of China[41902309] ; Kunlun Talents plan of Qinghai Province in 2020[18] ; High-level Talent Project of Qinghai Geological and Mineral Exploration and Development Bureau in 2021[16] ; Scientific and technological research projects in Sichuan province[2022YFSY0007] |
WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
语种 | 英语 |
WOS记录号 | WOS:000789583500004 |
出版者 | ELSEVIER SCI LTD |
源URL | [http://119.78.100.198/handle/2S6PX9GI/36515] ![]() |
专题 | 中科院武汉岩土力学所 |
通讯作者 | Lei, Hongwu |
作者单位 | 1.Qinghai Prov Survey Inst Hydrogeol Engn Geol & Env, Key Lab Hydrogeol & Geothermal Geol Qinghai Prov, Xining 810008, Peoples R China 2.Jilin Univ, Key Lab Groundwater Resources & Environm, Minist Educ, Changchun 130021, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
推荐引用方式 GB/T 7714 |
Cai, Yuna,Lei, Hongwu,Li, Xiaochun,et al. Phase transition and fluid backflow during the non-injection period in the Ordos CCS project, China [J]. JOURNAL OF CLEANER PRODUCTION,2022,349:15. |
APA |
Cai, Yuna.,Lei, Hongwu.,Li, Xiaochun.,Feng, Guanhong.,Cui, Yinxiang.,...&Zheng, Changyuan.(2022). Phase transition and fluid backflow during the non-injection period in the Ordos CCS project, China .JOURNAL OF CLEANER PRODUCTION,349,15. |
MLA |
Cai, Yuna,et al." Phase transition and fluid backflow during the non-injection period in the Ordos CCS project, China ".JOURNAL OF CLEANER PRODUCTION 349(2022):15. |
入库方式: OAI收割
来源:武汉岩土力学研究所
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