Productivity prediction of fractured horizontal wells with low permeability flow characteristics
Horizontal well and large-scale fracturing are revolutionary technologies in petroleum industry. The technologies bring obvious economic benefits to exploiting unconventional oil and gas reservoirs with low permeability, ultra-low permeability and shale gas. With the increasingly extensive applicat...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Vilnius Gediminas Technical University
2019-04-01
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| Series: | Journal of Environmental Engineering and Landscape Management |
| Subjects: | |
| Online Access: | http://journals.vgtu.lt/index.php/JEELM/article/view/9803 |
| _version_ | 1818380184091361280 |
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| author | Wen Jing Luo Wei Yin Qingguo Wang Hongying He Yongming Zhao Yarui |
| author_facet | Wen Jing Luo Wei Yin Qingguo Wang Hongying He Yongming Zhao Yarui |
| author_sort | Wen Jing |
| collection | DOAJ |
| description | Horizontal well and large-scale fracturing are revolutionary technologies in petroleum industry. The technologies bring obvious economic benefits to exploiting unconventional oil and gas reservoirs with low permeability, ultra-low permeability and shale gas. With the increasingly extensive application of these technologies, other correlated technologies have also gained great development. However, low-permeability reservoirs exhibit complicated features and horizontal well fractures have complex shape. The existing methods for the productivity prediction of fractured horizontal well in low-permeability reservoirs rarely consider the influencing factors in a comprehensive manner. In this paper, a horizontal well seepage model of casing fracturing completion was established according to the superposition principle of low-permeability reservoir and the relationship between potential and pressure, by which model the seepage characteristics of low-permeability reservoirs could be fully described. Based on the established new seepage model, a new targeted model with coupling seepage and wellbore flow was established for the productivity prediction of low-permeability fractured horizontal well. Finally, the new targeted model was verified through field experiment. The experimental results confirmed the reliability of productivity prediction by the proposed model. Sensitivity analysis was then performed on the parameters in the proposed model. |
| first_indexed | 2024-12-14T02:14:39Z |
| format | Article |
| id | doaj.art-1fc975c9934f46ddaa46b7daec4e8e4a |
| institution | Directory Open Access Journal |
| issn | 1648-6897 1822-4199 |
| language | English |
| last_indexed | 2024-12-14T02:14:39Z |
| publishDate | 2019-04-01 |
| publisher | Vilnius Gediminas Technical University |
| record_format | Article |
| series | Journal of Environmental Engineering and Landscape Management |
| spelling | doaj.art-1fc975c9934f46ddaa46b7daec4e8e4a2022-12-21T23:20:39ZengVilnius Gediminas Technical UniversityJournal of Environmental Engineering and Landscape Management1648-68971822-41992019-04-0127210.3846/jeelm.2019.9803Productivity prediction of fractured horizontal wells with low permeability flow characteristicsWen Jing0Luo Wei1Yin Qingguo2Wang Hongying3He Yongming4Zhao Yarui5Institute of Sedimentary Geology, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu, 610059, Sichuan, ChinaGas Lift Innovation Center, Laboratory of Multiphase Pipe Flow, Yangtze University, CNPC, Wuhan, 430100, China; CNPC Key Laboratory of Oil and Gas Production, Yangtze University, Wuhan, 430100, ChinaOil Production Technology Service Center of Petroleum Engineering Research Institute, Dagang Oilfield Company, Tianjin, 300280, ChinaResearch and Development Center, Tuha Oilfield Company, CNPC, Petroleum Base Hami, Xinjiang, 839009, ChinaCollege of Energy, Chengdu University of Technology, 1#, Dongsanlu, Erxianqiao, Chengdu, 610059, Sichuan, ChinaEleventh oil production plant, Changqing Oilfield Company, CNPC, Petroleum Base Xi'an, 710000, ChinaHorizontal well and large-scale fracturing are revolutionary technologies in petroleum industry. The technologies bring obvious economic benefits to exploiting unconventional oil and gas reservoirs with low permeability, ultra-low permeability and shale gas. With the increasingly extensive application of these technologies, other correlated technologies have also gained great development. However, low-permeability reservoirs exhibit complicated features and horizontal well fractures have complex shape. The existing methods for the productivity prediction of fractured horizontal well in low-permeability reservoirs rarely consider the influencing factors in a comprehensive manner. In this paper, a horizontal well seepage model of casing fracturing completion was established according to the superposition principle of low-permeability reservoir and the relationship between potential and pressure, by which model the seepage characteristics of low-permeability reservoirs could be fully described. Based on the established new seepage model, a new targeted model with coupling seepage and wellbore flow was established for the productivity prediction of low-permeability fractured horizontal well. Finally, the new targeted model was verified through field experiment. The experimental results confirmed the reliability of productivity prediction by the proposed model. Sensitivity analysis was then performed on the parameters in the proposed model.http://journals.vgtu.lt/index.php/JEELM/article/view/9803horizontal wellseepage modelcasing fracturing completionlow-permeability reservoirproductivity predictioncoupling seepage and wellbore flow |
| spellingShingle | Wen Jing Luo Wei Yin Qingguo Wang Hongying He Yongming Zhao Yarui Productivity prediction of fractured horizontal wells with low permeability flow characteristics Journal of Environmental Engineering and Landscape Management horizontal well seepage model casing fracturing completion low-permeability reservoir productivity prediction coupling seepage and wellbore flow |
| title | Productivity prediction of fractured horizontal wells with low permeability flow characteristics |
| title_full | Productivity prediction of fractured horizontal wells with low permeability flow characteristics |
| title_fullStr | Productivity prediction of fractured horizontal wells with low permeability flow characteristics |
| title_full_unstemmed | Productivity prediction of fractured horizontal wells with low permeability flow characteristics |
| title_short | Productivity prediction of fractured horizontal wells with low permeability flow characteristics |
| title_sort | productivity prediction of fractured horizontal wells with low permeability flow characteristics |
| topic | horizontal well seepage model casing fracturing completion low-permeability reservoir productivity prediction coupling seepage and wellbore flow |
| url | http://journals.vgtu.lt/index.php/JEELM/article/view/9803 |
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