Visualized Experiments on Residual Oil Classification and Its Influencing Factors in Waterflooding Using Micro-Computed Tomography
文献类型：期刊论文
| 作者 | Song, Rui2,3; Peng, Jiajun2; Sun, Shuyu3; Wang, Yao2; Cui, Mengmeng1; Liu, Jianjun4 |
| 刊名 | JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
 |
| 出版日期 | 2020-08-01 |
| 卷号 | 142期号:8页码:15 |
| 关键词 | micro-computed tomography residual oil pattern pore-scale wettability capillary pressure oil gas reservoirs petroleum engineering |
| ISSN号 | 0195-0738 |
| DOI | 10.1115/1.4045926 |
| 英文摘要 | Pore-scale mechanism of the waterflooding process contributes to enhanced oil recovery, which has been widely emphasized in the petroleum industry. In this paper, pore-scale waterflooding experiments are carried out on mixed-wetted natural sandstone and 3D printed sandstone using micro-computed tomography (mu-CT). The high-resolution images of oil/water distribution in different stages of waterflooding cycles are acquired. The classification of residual oil after waterflooding is conducted using the shape factor and Euler number, which represents the shape and spatial connectivity, respectively. The in situ contact angles are measured on the segmented images and the pore-scale wettability of these two samples is analyzed. Then, the effects of pore structure, micro-fracture and wettability on the distribution of the patterns of residual oil are analyzed. The results indicate that the types of isolated, cluster, network, and film (only for natural sample) are the main forms of residual oil patterns after the waterflooding process. The negative correlation between the shape factor and the Euler number of the typical oil blocks are presented. The effect of wettability and pore geometry on the morphology of the oil/water interface is quantitatively studied. The capillary pressure is the key factor for the formation of the residual oil blocks, the morphology of which is controlled by both wettability and pore geometry. |
| 资助项目 | National Natural Science Foundation of China[51909225] ; National Natural Science Foundation of China[51874262] ; National Science and Technology Major Project of China[2017ZX05013001-002] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z017009] ; King Abdullah University of Science and Technology (KAUST)[BAS/1/1351-1301] ; China Scholarship Council |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000549875200009 |
| 出版者 | ASME |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24537]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Peng, Jiajun; Sun, Shuyu |
| 作者单位 | 1.Southwest Petr Univ, Xindu Rd 8, Chengdu 610500, Sichuan, Peoples R China 2.Southwest Petr Univ, Sch Geosci & Technol, Xindu Rd 8, Chengdu 610500, Sichuan, Peoples R China 3.King Abdullah Univ Sci & Technol KAUST, Computat Transport Phenomena Lab CTPL, Thuwal 239556900, Saudi Arabia 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 | Song, Rui,Peng, Jiajun,Sun, Shuyu,et al. Visualized Experiments on Residual Oil Classification and Its Influencing Factors in Waterflooding Using Micro-Computed Tomography[J]. JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME,2020,142(8):15. |
| APA | Song, Rui,Peng, Jiajun,Sun, Shuyu,Wang, Yao,Cui, Mengmeng,&Liu, Jianjun.(2020).Visualized Experiments on Residual Oil Classification and Its Influencing Factors in Waterflooding Using Micro-Computed Tomography.JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME,142(8),15. |
| MLA | Song, Rui,et al."Visualized Experiments on Residual Oil Classification and Its Influencing Factors in Waterflooding Using Micro-Computed Tomography".JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME 142.8(2020):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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