Experimental Study on the Distribution of Retained Fracturing Fluids and Its Effect on the Permeability and Wettability in Tight Oil Reservoirs
It is not clear how the distribution of retained fracturing fluids and its effect on the permeability and wettability in tight oil reservoirs interact. Especially, there are more qualitative studies and less quantitative studies on this issue. Under laboratory experimental conditions, this paper cla...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2023/9740015 |
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| author | Tuan Gu Zhilin Tuo Tao Fan Dongpo Shi Chun Mu Shucan Xu Desheng Zhou |
| author_facet | Tuan Gu Zhilin Tuo Tao Fan Dongpo Shi Chun Mu Shucan Xu Desheng Zhou |
| author_sort | Tuan Gu |
| collection | DOAJ |
| description | It is not clear how the distribution of retained fracturing fluids and its effect on the permeability and wettability in tight oil reservoirs interact. Especially, there are more qualitative studies and less quantitative studies on this issue. Under laboratory experimental conditions, this paper clarifies the distribution of retained fracturing fluids in the core and reveals the influence rule of retained fracturing fluids on tight reservoir permeability and wettability. It is found that the main retention space of retained fracturing fluids in a tight reservoir is a microporous interval, and the residual oil after oil displacement by retained fracturing fluids mainly exists in the core in the form of dots or porphyries. The smaller permeability and porosity of the core will lead to more retained fracturing fluids. The permeability of different cores after fracturing fluid retention has decreased to varying degrees compared with that before fracturing fluid retention. The wettability of core slices before and after fracturing fluid retention was tested, and the effect of retained fracturing fluids on reservoir wettability was not significant. This study has important significance for improving the recovery of tight oil reservoirs and enhancing the understanding of postfracturing fluid retention. |
| format | Article |
| id | doaj-art-1035b45376a14fdfbb936e6a646156a5 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-1035b45376a14fdfbb936e6a646156a52025-02-03T01:29:27ZengWileyGeofluids1468-81232023-01-01202310.1155/2023/9740015Experimental Study on the Distribution of Retained Fracturing Fluids and Its Effect on the Permeability and Wettability in Tight Oil ReservoirsTuan Gu0Zhilin Tuo1Tao Fan2Dongpo Shi3Chun Mu4Shucan Xu5Desheng Zhou6Research Institute of Petroleum Exploration and DevelopmentGas Recovery Plant No.2Research Institute of Petroleum Exploration and DevelopmentResearch Institute of Petroleum Exploration and DevelopmentResearch Institute of Petroleum Exploration and DevelopmentCollege of Petroleum EngineeringCollege of Petroleum EngineeringIt is not clear how the distribution of retained fracturing fluids and its effect on the permeability and wettability in tight oil reservoirs interact. Especially, there are more qualitative studies and less quantitative studies on this issue. Under laboratory experimental conditions, this paper clarifies the distribution of retained fracturing fluids in the core and reveals the influence rule of retained fracturing fluids on tight reservoir permeability and wettability. It is found that the main retention space of retained fracturing fluids in a tight reservoir is a microporous interval, and the residual oil after oil displacement by retained fracturing fluids mainly exists in the core in the form of dots or porphyries. The smaller permeability and porosity of the core will lead to more retained fracturing fluids. The permeability of different cores after fracturing fluid retention has decreased to varying degrees compared with that before fracturing fluid retention. The wettability of core slices before and after fracturing fluid retention was tested, and the effect of retained fracturing fluids on reservoir wettability was not significant. This study has important significance for improving the recovery of tight oil reservoirs and enhancing the understanding of postfracturing fluid retention.http://dx.doi.org/10.1155/2023/9740015 |
| spellingShingle | Tuan Gu Zhilin Tuo Tao Fan Dongpo Shi Chun Mu Shucan Xu Desheng Zhou Experimental Study on the Distribution of Retained Fracturing Fluids and Its Effect on the Permeability and Wettability in Tight Oil Reservoirs Geofluids |
| title | Experimental Study on the Distribution of Retained Fracturing Fluids and Its Effect on the Permeability and Wettability in Tight Oil Reservoirs |
| title_full | Experimental Study on the Distribution of Retained Fracturing Fluids and Its Effect on the Permeability and Wettability in Tight Oil Reservoirs |
| title_fullStr | Experimental Study on the Distribution of Retained Fracturing Fluids and Its Effect on the Permeability and Wettability in Tight Oil Reservoirs |
| title_full_unstemmed | Experimental Study on the Distribution of Retained Fracturing Fluids and Its Effect on the Permeability and Wettability in Tight Oil Reservoirs |
| title_short | Experimental Study on the Distribution of Retained Fracturing Fluids and Its Effect on the Permeability and Wettability in Tight Oil Reservoirs |
| title_sort | experimental study on the distribution of retained fracturing fluids and its effect on the permeability and wettability in tight oil reservoirs |
| url | http://dx.doi.org/10.1155/2023/9740015 |
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