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, Yuna1,4; Lei, Hongwu1; Li, Xiaochun1 ; Feng, Guanhong3; Cui, Yinxiang1; Bai, Bing1; Zheng, Changyuan2
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| 刊名 | JOURNAL OF CLEANER PRODUCTION
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| 出版日期 | 2022-05-15 |
| 卷号 | 349期号:-页码:- |
| 关键词 | Wellbore-reservoir coupled numerical model Shut-in Phase transition Backflow |
| ISSN号 | 0959-6526 |
| 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. |
| 学科主题 | 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/35326]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China 2.Key Laboratory of Hydrogeology and Geothermal Geology of Qinghai Province, Qinghai Provincial Survey Institute of Hydrogeology, Engineering Geology and Environmental Geology, Xining, 810008, China 3.Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China 4.University of Chinese Academy of Sciences, Beijing, 100049, 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(-):-. |
| 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(-),-. |
| 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):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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