Evaluation and Utilization of Nano-Micron Polymer Plug for Heterogeneous Carbonate Reservoir with Thief Zones
Thief zones are highly permeable zones in oil reservoirs which affect the performance greatly during water flooding. The most effective way to prevent the invalid circle of thief layer is the injection of high-concentration polymer slugs. In this paper, the plugging effect of nano-micron polymer flo...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Polymer Technology |
| Online Access: | http://dx.doi.org/10.1155/2020/3498583 |
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| author | Chenji Wei Jie Zheng Lihui Xiong Zhengzhong Li Jian Yang Jingjian Zhang Shiyao Lin Linlang Zhou Lichun Fang Yutao Ding |
| author_facet | Chenji Wei Jie Zheng Lihui Xiong Zhengzhong Li Jian Yang Jingjian Zhang Shiyao Lin Linlang Zhou Lichun Fang Yutao Ding |
| author_sort | Chenji Wei |
| collection | DOAJ |
| description | Thief zones are highly permeable zones in oil reservoirs which affect the performance greatly during water flooding. The most effective way to prevent the invalid circle of thief layer is the injection of high-concentration polymer slugs. In this paper, the plugging effect of nano-micron polymer flooding on the thief zone is studied by experimental and theoretical analysis. The changes of water content and flow resistance were analyzed under different conditions. The result shows that the model presented here has good agreement with the experimental results. The displacement effect is the best when the thief zone is located on the upper part of the reservoir. And the water content will decrease with the increase of flow resistance after nano-micron polymer injection. Besides, the higher the polymer concentration, the more obvious the decrease of water content, and more effective the plugging. This study has provided a quick and reasonable guide in the later adjustment of water flooding development of carbonate reservoirs with thief layers. |
| format | Article |
| id | doaj-art-26300b48184d4f5b9aedf8bd5ff02d76 |
| institution | Kabale University |
| issn | 0730-6679 1098-2329 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Polymer Technology |
| spelling | doaj-art-26300b48184d4f5b9aedf8bd5ff02d762025-02-03T06:43:51ZengWileyAdvances in Polymer Technology0730-66791098-23292020-01-01202010.1155/2020/34985833498583Evaluation and Utilization of Nano-Micron Polymer Plug for Heterogeneous Carbonate Reservoir with Thief ZonesChenji Wei0Jie Zheng1Lihui Xiong2Zhengzhong Li3Jian Yang4Jingjian Zhang5Shiyao Lin6Linlang Zhou7Lichun Fang8Yutao Ding9Research Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaChina Petroleum Technology and Development Corporation, PetroChina, Beijing, ChinaChina National Oil and Gas Exploration and Development Company Ltd., Beijing, ChinaChina Petroleum Southwest Oil and Gas Field Company Chuanzhong Oil and Gas Mine, Beijing, ChinaResearch Institute of Petroleum Exploration and Development, PetroChina, Beijing, ChinaChina National Oil and Gas Exploration and Development Company Ltd., Beijing, ChinaThief zones are highly permeable zones in oil reservoirs which affect the performance greatly during water flooding. The most effective way to prevent the invalid circle of thief layer is the injection of high-concentration polymer slugs. In this paper, the plugging effect of nano-micron polymer flooding on the thief zone is studied by experimental and theoretical analysis. The changes of water content and flow resistance were analyzed under different conditions. The result shows that the model presented here has good agreement with the experimental results. The displacement effect is the best when the thief zone is located on the upper part of the reservoir. And the water content will decrease with the increase of flow resistance after nano-micron polymer injection. Besides, the higher the polymer concentration, the more obvious the decrease of water content, and more effective the plugging. This study has provided a quick and reasonable guide in the later adjustment of water flooding development of carbonate reservoirs with thief layers.http://dx.doi.org/10.1155/2020/3498583 |
| spellingShingle | Chenji Wei Jie Zheng Lihui Xiong Zhengzhong Li Jian Yang Jingjian Zhang Shiyao Lin Linlang Zhou Lichun Fang Yutao Ding Evaluation and Utilization of Nano-Micron Polymer Plug for Heterogeneous Carbonate Reservoir with Thief Zones Advances in Polymer Technology |
| title | Evaluation and Utilization of Nano-Micron Polymer Plug for Heterogeneous Carbonate Reservoir with Thief Zones |
| title_full | Evaluation and Utilization of Nano-Micron Polymer Plug for Heterogeneous Carbonate Reservoir with Thief Zones |
| title_fullStr | Evaluation and Utilization of Nano-Micron Polymer Plug for Heterogeneous Carbonate Reservoir with Thief Zones |
| title_full_unstemmed | Evaluation and Utilization of Nano-Micron Polymer Plug for Heterogeneous Carbonate Reservoir with Thief Zones |
| title_short | Evaluation and Utilization of Nano-Micron Polymer Plug for Heterogeneous Carbonate Reservoir with Thief Zones |
| title_sort | evaluation and utilization of nano micron polymer plug for heterogeneous carbonate reservoir with thief zones |
| url | http://dx.doi.org/10.1155/2020/3498583 |
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