Transient H2O-CO2 wellbore leakage under evolving recharge conditions considering CO2 phase change
文献类型：期刊论文
| 作者 | Cai, Yuna1; Yang, Diansen1; Feng, Guanhong3; Lei, Hongwu2 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2024-04-15 |
| 卷号 | 450页码:14 |
| 关键词 | CO2 leakage Wellbore-reservoir coupled CO2 injection Wellbore transient flow CO2 phase change Evolving recharge condition |
| ISSN号 | 0959-6526 |
| DOI | 10.1016/j.jclepro.2024.141942 |
| 英文摘要 | Abandoned wells are one of the dominant pathways of deep CO2 leakage, threatening the safety and effectiveness of CO2 geological storage. Although CO2 wellbore flow has been discussed in several studies, the analysis of the CO2 wellbore leakage under evolving recharge conditions based on the transient wellbore-reservoir fully coupled model, which can describe the CO2 gas -liquid phase change, has yet to be reported. Thus, a transient wellborereservoir fully coupled model is established in this study to investigate the interaction between CO2 injection and wellbore leakage. The results show that the fluid wellbore leakage may cause significant disturbance to the reservoir and injection well, and the fluid leakage process can be divided into different stages according to the leakage and recharge characteristics. Besides, the wellhead temperature of the abandoned well shows a different variation trend compared with previous studies, which is attributed to the evolving reservoir recharge. The parameter analysis indicates that the gap aperture in the plugs of the abandoned well, plug locations, CO2 injection rate, and reservoir permeability have apparent effects on the fluid leakage rates but have little impact on the leakage pattern. Finally, a dimensionless parameter, the ratio of leakage to injection mass, is proposed to generalize the leakage degree, and the empirical relationship of the ratio of leakage to injection mass with time is established to facilitate quick estimation. This study broadens the understanding of CO2 wellbore leakage and provides a simple method to predict similar leakage scenarios approximately. |
| 资助项目 | National Natural Science Foundation of China[42307225] ; National Natural Science Foundation of China[U22A20595] ; National Natural Science Foundation of China[U2344226] ; National Key Research and Development Program of China for Young Scientists[2023YFB4104100] ; CNPC Innovation Found[2021 D002-1102] |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001218315400001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41287]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Yang, Diansen |
| 作者单位 | 1.Wuhan Univ, Sch Civil Engn, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Jilin Univ, Key Lab Groundwater Resources & Environm, Minist Educ, Changchun 130021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Yuna,Yang, Diansen,Feng, Guanhong,et al. Transient H2O-CO2 wellbore leakage under evolving recharge conditions considering CO2 phase change[J]. JOURNAL OF CLEANER PRODUCTION,2024,450:14. |
| APA | Cai, Yuna,Yang, Diansen,Feng, Guanhong,&Lei, Hongwu.(2024).Transient H2O-CO2 wellbore leakage under evolving recharge conditions considering CO2 phase change.JOURNAL OF CLEANER PRODUCTION,450,14. |
| MLA | Cai, Yuna,et al."Transient H2O-CO2 wellbore leakage under evolving recharge conditions considering CO2 phase change".JOURNAL OF CLEANER PRODUCTION 450(2024):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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