CO2 gas stripped off membranous residual oil from pore surfaces: Effects of temperature, pressure and wettability
文献类型：期刊论文
| 作者 | Yu, Tao1,2; Hu, Haixiang1,2; Li, Qi1,2 ; Tan, Yongsheng1,2; Xu, Liang1,2; Cao, Xiaomin1,2
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| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
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| 出版日期 | 2023-12-01 |
| 卷号 | 15期号:12页码:3209-3220 |
| 关键词 | Molecular dynamics simulation CO2 flooding Wettability Interaction energy Residual oil CO2 utilization CO2 capture utilization and storage (CCUS) |
| ISSN号 | 1674-7755 |
| DOI | 10.1016/j.jrmge.2023.07.007 |
| 英文摘要 | The threshold values of CO2 gas stripped off membranous residual oil from the pore walls are not clear under different temperatures, pressures and wettability conditions. The extent to which temperature, pressure and wettability influence CO2 flooding for enhancing the recovery of residual oil in membranous formations also remains uncertain. Therefore, further quantitative characterization is entailed. In this study, the molecular dynamics method was employed to explore CO2 flooding under different temperatures, pressures and wettability conditions, aiming to enhance the production of membranous residual oil. The results reveal that the interaction energy between CO2, decane molecules and pore walls exhibits a decrease with increasing temperature and an increase with increasing pressure, respectively, in distinct wettability scenarios. When the temperature was at or below 363 K and the pressure was not lower than 40 MPa, CO2 gas could detach the membranous residual oil from the pore walls in the waterwet systems. When the temperature was equal to 363 K and the pressure remained under 40 MPa, or the temperature surpassed 363 K, CO2 gas failed to detach the membranous residual oil from the pore walls in the water-wet systems. For the mixed-wet and oil-wet systems, CO2 molecules could not detach the membranous residual oil from the pore walls. The hierarchy of influence regarding temperature, pressure and wettability on the competitive adsorption capacity of CO2 and decane molecules on the pore walls emerged as follows: wettability > temperature > pressure. The findings of this study offer valuable insights into the application of CO2 gas flooding for the exploitation of membranous residual oil on pore walls. (c) 2023 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). |
| 资助项目 | Creative Groups of Natural Science Foundation of Hubei Province, China[2021CFA030] ; National Natural Science Foundation of China[41872210] ; National Natural Science Foundation of China[41274111] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001262598200002 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41882]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Hu, Haixiang |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.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 | Yu, Tao,Hu, Haixiang,Li, Qi,et al. CO2 gas stripped off membranous residual oil from pore surfaces: Effects of temperature, pressure and wettability[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2023,15(12):3209-3220. |
| APA | Yu, Tao,Hu, Haixiang,Li, Qi,Tan, Yongsheng,Xu, Liang,&Cao, Xiaomin.(2023).CO2 gas stripped off membranous residual oil from pore surfaces: Effects of temperature, pressure and wettability.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,15(12),3209-3220. |
| MLA | Yu, Tao,et al."CO2 gas stripped off membranous residual oil from pore surfaces: Effects of temperature, pressure and wettability".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 15.12(2023):3209-3220. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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