Experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oil
To clarify microscopic mechanisms of residual oil displacement by hydraulic pulsation wave, microscopic visualization experiments of hydraulic pulsation wave driving residual oil were carried out by using the microscopic visualization device of pulsating water drive. For the four types of residual o...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2022-12-01
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| Series: | Petroleum Exploration and Development |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1876380423603593 |
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| author | Feipeng WU Na LI Wei YANG Jiahao CHEN Bujie DING Lei XIA Jing LIU Cong WANG Lushan WANG |
| author_facet | Feipeng WU Na LI Wei YANG Jiahao CHEN Bujie DING Lei XIA Jing LIU Cong WANG Lushan WANG |
| author_sort | Feipeng WU |
| collection | DOAJ |
| description | To clarify microscopic mechanisms of residual oil displacement by hydraulic pulsation wave, microscopic visualization experiments of hydraulic pulsation wave driving residual oil were carried out by using the microscopic visualization device of pulsating water drive. For the four types of residual oil left in the reservoir after water flooding, i.e. membrane, column, cluster, and blind end residual oils, hydraulic pulsation waves broke the micro-equilibrium of the interface by disturbing the oil-water interface, so that the injected water invaded into and contacted with the remaining oil in small pores and blind holes, and the remaining oil was pushed or stripped to the mainstream channel by deformation superposition effect and then carried out by the injected water. In the displacement, the pulsation frequency mainly affected the cluster and blind end remaining oil, and the hydraulic pulsation wave with a frequency of about 1 Hz had the best effect in improving the recovery. The pulsation amplitude value mainly affected the membrane and column residual oil, and the larger the amplitude value, the more remaining oil the hydraulic pulsation wave would displace. The presence of low intensity continuous flow pressure and holding pressure end pressure promoted the concentration of pulsating energy and greatly improve the recovery of cluster residual oil. The rise in temperature made the hydraulic pulsation wave work better in displacing remaining oil, improving the efficiency of oil flooding. |
| first_indexed | 2024-04-11T05:52:32Z |
| format | Article |
| id | doaj.art-c8797b0042c14aec93fe6d90eedc3fc5 |
| institution | Directory Open Access Journal |
| issn | 1876-3804 |
| language | English |
| last_indexed | 2024-04-11T05:52:32Z |
| publishDate | 2022-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Petroleum Exploration and Development |
| spelling | doaj.art-c8797b0042c14aec93fe6d90eedc3fc52022-12-22T04:42:01ZengKeAi Communications Co., Ltd.Petroleum Exploration and Development1876-38042022-12-0149614111422Experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oilFeipeng WU0Na LI1Wei YANG2Jiahao CHEN3Bujie DING4Lei XIA5Jing LIU6Cong WANG7Lushan WANG8China University of Petroleum (East China), Qingdao 266000, China; Corresponding authorChina University of Petroleum (East China), Qingdao 266000, ChinaResearch Institute of Exploration and Development, Yanchang Oil Field Company, Yan'an 716000, ChinaChina University of Petroleum (East China), Qingdao 266000, ChinaChina University of Petroleum (East China), Qingdao 266000, ChinaChina University of Petroleum (East China), Qingdao 266000, ChinaChina University of Petroleum (East China), Qingdao 266000, ChinaSinopec Research Institute of Petroleum Engineering Co., Ltd, Dongying 257000, ChinaShengli Oilfield Branch of China Petroleum & Chemical Corporation, Dongying 257000, ChinaTo clarify microscopic mechanisms of residual oil displacement by hydraulic pulsation wave, microscopic visualization experiments of hydraulic pulsation wave driving residual oil were carried out by using the microscopic visualization device of pulsating water drive. For the four types of residual oil left in the reservoir after water flooding, i.e. membrane, column, cluster, and blind end residual oils, hydraulic pulsation waves broke the micro-equilibrium of the interface by disturbing the oil-water interface, so that the injected water invaded into and contacted with the remaining oil in small pores and blind holes, and the remaining oil was pushed or stripped to the mainstream channel by deformation superposition effect and then carried out by the injected water. In the displacement, the pulsation frequency mainly affected the cluster and blind end remaining oil, and the hydraulic pulsation wave with a frequency of about 1 Hz had the best effect in improving the recovery. The pulsation amplitude value mainly affected the membrane and column residual oil, and the larger the amplitude value, the more remaining oil the hydraulic pulsation wave would displace. The presence of low intensity continuous flow pressure and holding pressure end pressure promoted the concentration of pulsating energy and greatly improve the recovery of cluster residual oil. The rise in temperature made the hydraulic pulsation wave work better in displacing remaining oil, improving the efficiency of oil flooding.http://www.sciencedirect.com/science/article/pii/S1876380423603593hydraulic pulsation wavemicroscopic remaining oiloil displacement mechanismdisturbance of oil-water interfaceenhanced oil recovery |
| spellingShingle | Feipeng WU Na LI Wei YANG Jiahao CHEN Bujie DING Lei XIA Jing LIU Cong WANG Lushan WANG Experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oil Petroleum Exploration and Development hydraulic pulsation wave microscopic remaining oil oil displacement mechanism disturbance of oil-water interface enhanced oil recovery |
| title | Experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oil |
| title_full | Experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oil |
| title_fullStr | Experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oil |
| title_full_unstemmed | Experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oil |
| title_short | Experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oil |
| title_sort | experimental characterization and mechanism of hydraulic pulsation waves driving microscopic residual oil |
| topic | hydraulic pulsation wave microscopic remaining oil oil displacement mechanism disturbance of oil-water interface enhanced oil recovery |
| url | http://www.sciencedirect.com/science/article/pii/S1876380423603593 |
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