New insight to experimental study on pore structure of different type reservoirs during alkaline‐surfactant‐polymer flooding
Abstract Recently, as the demand for fossil and renewable energy continuously increases, enhancing oil recovery has become one of the key methods to meet the increased requirement. However, most of the oilfields are facing serious problems, including formation heterogeneity and low recovery factor....
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-07-01
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| Series: | Energy Science & Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ese3.1206 |
| _version_ | 1828369504657211392 |
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| author | Runnan Zhou Dong Zhang Jianwen Tao Jianguang Wei Xiaoqing Zhao Ao Zhang Xiaofeng Zhou Xuedong Shi |
| author_facet | Runnan Zhou Dong Zhang Jianwen Tao Jianguang Wei Xiaoqing Zhao Ao Zhang Xiaofeng Zhou Xuedong Shi |
| author_sort | Runnan Zhou |
| collection | DOAJ |
| description | Abstract Recently, as the demand for fossil and renewable energy continuously increases, enhancing oil recovery has become one of the key methods to meet the increased requirement. However, most of the oilfields are facing serious problems, including formation heterogeneity and low recovery factor. Therefore, further analysis is required to study the distribution of remaining oil and how to enhance oil recovery effectively. In this study, the core samples of different reservoir types were employed and characteristics of pore structure were measured by a high‐pressure mercury porosimeter. The recovery factor and distribution of remaining oil with different reservoir types were determined by core flooding experiments and nuclear magnetic resonance tests. According to the results, the heterogeneity of pore structure becomes weaker as the permeability of the reservoir increases. The recovery during different periods improved as the core permeability increased. The distribution of remaining oil in different pore sizes has an obvious difference. The contribution of the recovery factor is highest in smallpores and mesopores for type II reservoir while is greatest in mesopores and macropores for type III reservoir. These results can provide theoretical and technical support for further enhancing oil recovery. |
| first_indexed | 2024-04-14T06:24:55Z |
| format | Article |
| id | doaj.art-2e51f593fc594e1994bc3ebde8db048f |
| institution | Directory Open Access Journal |
| issn | 2050-0505 |
| language | English |
| last_indexed | 2024-04-14T06:24:55Z |
| publishDate | 2022-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Energy Science & Engineering |
| spelling | doaj.art-2e51f593fc594e1994bc3ebde8db048f2022-12-22T02:07:51ZengWileyEnergy Science & Engineering2050-05052022-07-011072527253910.1002/ese3.1206New insight to experimental study on pore structure of different type reservoirs during alkaline‐surfactant‐polymer floodingRunnan Zhou0Dong Zhang1Jianwen Tao2Jianguang Wei3Xiaoqing Zhao4Ao Zhang5Xiaofeng Zhou6Xuedong Shi7Department of Petroleum Engineering, Key Laboratory of Enhanced Oil Recovery, Ministry of Education Northeast Petroleum University Daqing Heilongjiang ChinaDepartment of Petroleum Engineering, Key Laboratory of Enhanced Oil Recovery, Ministry of Education Northeast Petroleum University Daqing Heilongjiang ChinaDepartment of Petroleum Engineering, Key Laboratory of Enhanced Oil Recovery, Ministry of Education Northeast Petroleum University Daqing Heilongjiang ChinaKey Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development, Ministry of Education, Institute of Unconventional Oil and Gas Northeast Petroleum University Daqing Heilongjiang ChinaKey Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development, Ministry of Education, Institute of Unconventional Oil and Gas Northeast Petroleum University Daqing Heilongjiang ChinaKey Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development, Ministry of Education, Institute of Unconventional Oil and Gas Northeast Petroleum University Daqing Heilongjiang ChinaKey Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development, Ministry of Education, Institute of Unconventional Oil and Gas Northeast Petroleum University Daqing Heilongjiang ChinaKey Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development, Ministry of Education, Institute of Unconventional Oil and Gas Northeast Petroleum University Daqing Heilongjiang ChinaAbstract Recently, as the demand for fossil and renewable energy continuously increases, enhancing oil recovery has become one of the key methods to meet the increased requirement. However, most of the oilfields are facing serious problems, including formation heterogeneity and low recovery factor. Therefore, further analysis is required to study the distribution of remaining oil and how to enhance oil recovery effectively. In this study, the core samples of different reservoir types were employed and characteristics of pore structure were measured by a high‐pressure mercury porosimeter. The recovery factor and distribution of remaining oil with different reservoir types were determined by core flooding experiments and nuclear magnetic resonance tests. According to the results, the heterogeneity of pore structure becomes weaker as the permeability of the reservoir increases. The recovery during different periods improved as the core permeability increased. The distribution of remaining oil in different pore sizes has an obvious difference. The contribution of the recovery factor is highest in smallpores and mesopores for type II reservoir while is greatest in mesopores and macropores for type III reservoir. These results can provide theoretical and technical support for further enhancing oil recovery.https://doi.org/10.1002/ese3.1206alkaline/surfactant/polymer floodingdistribution of remaining oilenhance oil recoverynuclear magnetic resonance testpore structure |
| spellingShingle | Runnan Zhou Dong Zhang Jianwen Tao Jianguang Wei Xiaoqing Zhao Ao Zhang Xiaofeng Zhou Xuedong Shi New insight to experimental study on pore structure of different type reservoirs during alkaline‐surfactant‐polymer flooding Energy Science & Engineering alkaline/surfactant/polymer flooding distribution of remaining oil enhance oil recovery nuclear magnetic resonance test pore structure |
| title | New insight to experimental study on pore structure of different type reservoirs during alkaline‐surfactant‐polymer flooding |
| title_full | New insight to experimental study on pore structure of different type reservoirs during alkaline‐surfactant‐polymer flooding |
| title_fullStr | New insight to experimental study on pore structure of different type reservoirs during alkaline‐surfactant‐polymer flooding |
| title_full_unstemmed | New insight to experimental study on pore structure of different type reservoirs during alkaline‐surfactant‐polymer flooding |
| title_short | New insight to experimental study on pore structure of different type reservoirs during alkaline‐surfactant‐polymer flooding |
| title_sort | new insight to experimental study on pore structure of different type reservoirs during alkaline surfactant polymer flooding |
| topic | alkaline/surfactant/polymer flooding distribution of remaining oil enhance oil recovery nuclear magnetic resonance test pore structure |
| url | https://doi.org/10.1002/ese3.1206 |
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