The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir
The reservoir heterogeneity of Suizhong 36-1 oilfield is very obvious, the average permeability reaches 2000mD. Long-term water injection development leads to serious water channeling in high permeability layers, resulting in ineffective circulation of injected water and reduction of oil recovery. I...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-06-01
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| Series: | Petroleum Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2096249522000278 |
| _version_ | 1797785519400157184 |
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| author | Siqi Liu Hu Jia Hongshen Wang Yanbin Liang Duansheng Shi Zhichong Lu Junyi Wu |
| author_facet | Siqi Liu Hu Jia Hongshen Wang Yanbin Liang Duansheng Shi Zhichong Lu Junyi Wu |
| author_sort | Siqi Liu |
| collection | DOAJ |
| description | The reservoir heterogeneity of Suizhong 36-1 oilfield is very obvious, the average permeability reaches 2000mD. Long-term water injection development leads to serious water channeling in high permeability layers, resulting in ineffective circulation of injected water and reduction of oil recovery. It is urgent to form an effective EOR method. In this paper, the oil displacement effect of different combination slugs including polymer gel, polymer microsphere and surfactant is evaluated by means of conformance control and chemical flooding. Three-layer heterogeneous 3-D plate model is used for oil displacement experiment. The experimental results show that the combination slug sequentially composed of polymer gel, polymer microspheres and surfactant have the best oil displacement effect with the oil recovery increment by 21.2% after the first water flooding. In addition, using the best slug combination for two rounds flooding, the recovery factor increased by 28.2% compared with the first water flooding. This paper provides some new insights for enhanced oil recovery in strong heterogeneity reservoir. |
| first_indexed | 2024-03-13T00:55:15Z |
| format | Article |
| id | doaj.art-79cc060391f941e7a53348199e1d556d |
| institution | Directory Open Access Journal |
| issn | 2096-2495 |
| language | English |
| last_indexed | 2024-03-13T00:55:15Z |
| publishDate | 2023-06-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Petroleum Research |
| spelling | doaj.art-79cc060391f941e7a53348199e1d556d2023-07-07T04:26:54ZengKeAi Communications Co., Ltd.Petroleum Research2096-24952023-06-0182151166The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoirSiqi Liu0Hu Jia1Hongshen Wang2Yanbin Liang3Duansheng Shi4Zhichong Lu5Junyi Wu6State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, China; Corresponding author.CNOOC Energy Technology & Services Limited, Engineering Technology Branch, Tianjin, ChinaOil Production Technology Institute of PetroChina Dagang Oilfield Company, Tianjin, ChinaCNOOC Energy Technology & Services Limited, Engineering Technology Branch, Tianjin, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, ChinaThe reservoir heterogeneity of Suizhong 36-1 oilfield is very obvious, the average permeability reaches 2000mD. Long-term water injection development leads to serious water channeling in high permeability layers, resulting in ineffective circulation of injected water and reduction of oil recovery. It is urgent to form an effective EOR method. In this paper, the oil displacement effect of different combination slugs including polymer gel, polymer microsphere and surfactant is evaluated by means of conformance control and chemical flooding. Three-layer heterogeneous 3-D plate model is used for oil displacement experiment. The experimental results show that the combination slug sequentially composed of polymer gel, polymer microspheres and surfactant have the best oil displacement effect with the oil recovery increment by 21.2% after the first water flooding. In addition, using the best slug combination for two rounds flooding, the recovery factor increased by 28.2% compared with the first water flooding. This paper provides some new insights for enhanced oil recovery in strong heterogeneity reservoir.http://www.sciencedirect.com/science/article/pii/S2096249522000278Heterogeneity reservoirEORPolymer gelMicrosphereSurfactantCombined slug |
| spellingShingle | Siqi Liu Hu Jia Hongshen Wang Yanbin Liang Duansheng Shi Zhichong Lu Junyi Wu The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir Petroleum Research Heterogeneity reservoir EOR Polymer gel Microsphere Surfactant Combined slug |
| title | The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir |
| title_full | The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir |
| title_fullStr | The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir |
| title_full_unstemmed | The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir |
| title_short | The ternary combination of polymer gel, microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir |
| title_sort | ternary combination of polymer gel microsphere and surfactant for conformance control and oil displacement to improve oil recovery in strong heterogeneous reservoir |
| topic | Heterogeneity reservoir EOR Polymer gel Microsphere Surfactant Combined slug |
| url | http://www.sciencedirect.com/science/article/pii/S2096249522000278 |
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