Influence of perforation erosion on multiple growing hydraulic fractures in multi-stage fracturing
In multi-stage hydraulic fracturing, the limited-entry method is widely used to promote uniform growth of multiple fractures. However, this method's effectiveness may be lost because the perforations will be eroded gradually during the fracturing period. In order to study the influence of perfo...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2018-02-01
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| Series: | Natural Gas Industry B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352854017301705 |
| _version_ | 1797281924547346432 |
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| author | Yongming Li Xiyu Chen Jinzhou Zhao Wenjun Xu Juan Wu Dongyu Fu |
| author_facet | Yongming Li Xiyu Chen Jinzhou Zhao Wenjun Xu Juan Wu Dongyu Fu |
| author_sort | Yongming Li |
| collection | DOAJ |
| description | In multi-stage hydraulic fracturing, the limited-entry method is widely used to promote uniform growth of multiple fractures. However, this method's effectiveness may be lost because the perforations will be eroded gradually during the fracturing period. In order to study the influence of perforation erosion on multiple growing hydraulic fractures, we combined the solid–fluid coupled model of hydraulic fracture growth with an empirical model of perforation erosion to implement numerical simulation. The simulations show clearly that the erosion of perforation will significantly deteriorate the non-uniform growth of multiple fractures. Based on the numerical model, we also studied the influences of proppant concentration and injection rates on perforation erosion in multi-stage hydraulic fracturing. The results indicate that the initial erosion rates become higher with the rising proppant concentration, but the growth of multiple hydraulic fractures is not sensitive to the varied proppant concentration. In addition, higher injection rates are beneficial significantly to the limited-entry design, leading to more uniform growth of fractures. Thus, in multi-stage hydraulic fracturing enough high injection rates are proposed to keep uniform growths. Keywords: Unconventional oil and gas reservoir, Horizontal well, Perforation friction, Perforation erosion, Multi-stage hydraulic fracturing, Numerical simulation, Mathematic model, Uniform growth of fractures |
| first_indexed | 2024-03-07T17:04:29Z |
| format | Article |
| id | doaj.art-12151e39b48b4329b819f05a7c463240 |
| institution | Directory Open Access Journal |
| issn | 2352-8540 |
| language | English |
| last_indexed | 2024-03-07T17:04:29Z |
| publishDate | 2018-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Natural Gas Industry B |
| spelling | doaj.art-12151e39b48b4329b819f05a7c4632402024-03-03T02:44:36ZengKeAi Communications Co., Ltd.Natural Gas Industry B2352-85402018-02-0151815Influence of perforation erosion on multiple growing hydraulic fractures in multi-stage fracturingYongming Li0Xiyu Chen1Jinzhou Zhao2Wenjun Xu3Juan Wu4Dongyu Fu5State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Corresponding author.State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, ChinaState Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, ChinaState Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, ChinaExploration and Development Research Institute of PetroChina Southwest Oil & Gas Field Company, Chengdu, Sichuan 610051, ChinaState Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, ChinaIn multi-stage hydraulic fracturing, the limited-entry method is widely used to promote uniform growth of multiple fractures. However, this method's effectiveness may be lost because the perforations will be eroded gradually during the fracturing period. In order to study the influence of perforation erosion on multiple growing hydraulic fractures, we combined the solid–fluid coupled model of hydraulic fracture growth with an empirical model of perforation erosion to implement numerical simulation. The simulations show clearly that the erosion of perforation will significantly deteriorate the non-uniform growth of multiple fractures. Based on the numerical model, we also studied the influences of proppant concentration and injection rates on perforation erosion in multi-stage hydraulic fracturing. The results indicate that the initial erosion rates become higher with the rising proppant concentration, but the growth of multiple hydraulic fractures is not sensitive to the varied proppant concentration. In addition, higher injection rates are beneficial significantly to the limited-entry design, leading to more uniform growth of fractures. Thus, in multi-stage hydraulic fracturing enough high injection rates are proposed to keep uniform growths. Keywords: Unconventional oil and gas reservoir, Horizontal well, Perforation friction, Perforation erosion, Multi-stage hydraulic fracturing, Numerical simulation, Mathematic model, Uniform growth of fractureshttp://www.sciencedirect.com/science/article/pii/S2352854017301705 |
| spellingShingle | Yongming Li Xiyu Chen Jinzhou Zhao Wenjun Xu Juan Wu Dongyu Fu Influence of perforation erosion on multiple growing hydraulic fractures in multi-stage fracturing Natural Gas Industry B |
| title | Influence of perforation erosion on multiple growing hydraulic fractures in multi-stage fracturing |
| title_full | Influence of perforation erosion on multiple growing hydraulic fractures in multi-stage fracturing |
| title_fullStr | Influence of perforation erosion on multiple growing hydraulic fractures in multi-stage fracturing |
| title_full_unstemmed | Influence of perforation erosion on multiple growing hydraulic fractures in multi-stage fracturing |
| title_short | Influence of perforation erosion on multiple growing hydraulic fractures in multi-stage fracturing |
| title_sort | influence of perforation erosion on multiple growing hydraulic fractures in multi stage fracturing |
| url | http://www.sciencedirect.com/science/article/pii/S2352854017301705 |
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