Drag-Reduction Performance Evaluation of Controllable Hybrid Steering Drilling System
The excessive drag/torque and the backing pressure is an important factor that restricts the improvement of the penetration rate and the extension of the drilling in the sliding drilling process of extended-reach wells and horizontal wells. To deal with this problem, this paper developed a novel con...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6688656 |
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| _version_ | 1832552508426289152 |
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| author | Jianyan Zou Ping Chen Tianshou Ma Yang Liu Xingming Wang |
| author_facet | Jianyan Zou Ping Chen Tianshou Ma Yang Liu Xingming Wang |
| author_sort | Jianyan Zou |
| collection | DOAJ |
| description | The excessive drag/torque and the backing pressure is an important factor that restricts the improvement of the penetration rate and the extension of the drilling in the sliding drilling process of extended-reach wells and horizontal wells. To deal with this problem, this paper developed a novel controllable hybrid steering drilling system (CHSDS) based on the friction-reducing principle of a rotating drill string. The CHSDS is composed of a gear clutch, hydraulic system, and measurement and control system. By controlling the meshing and separation of the clutch with the mud pulse signal, the CHSDS has two working states, which leads to two boundary conditions. Combined with the stiff-string drag torque model, the effects of the drilling parameters on the friction-reducing performance of the CHSDS are analyzed systematically. The results show that the friction reduction effect in the inclined section is the most significant, followed by that in the horizontal section, whereas there is almost no impact in the vertical section. Friction reduction increases with the rotary speed and the drilling fluid density, whereas it decreases with the increase in the surface weight-on-bit and the bit reaction torque. Field tests confirm the separation and meshing function of the CHSDS. The developed controllable hybrid steering and friction-reducing technology provides an alternative approach for the safe and high-efficiency drilling of horizontal wells. |
| format | Article |
| id | doaj-art-7141befb08f94805b23430028da0c3b3 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-7141befb08f94805b23430028da0c3b32025-02-03T05:58:30ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66886566688656Drag-Reduction Performance Evaluation of Controllable Hybrid Steering Drilling SystemJianyan Zou0Ping Chen1Tianshou Ma2Yang Liu3Xingming Wang4State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, ChinaSchool of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, ChinaThe excessive drag/torque and the backing pressure is an important factor that restricts the improvement of the penetration rate and the extension of the drilling in the sliding drilling process of extended-reach wells and horizontal wells. To deal with this problem, this paper developed a novel controllable hybrid steering drilling system (CHSDS) based on the friction-reducing principle of a rotating drill string. The CHSDS is composed of a gear clutch, hydraulic system, and measurement and control system. By controlling the meshing and separation of the clutch with the mud pulse signal, the CHSDS has two working states, which leads to two boundary conditions. Combined with the stiff-string drag torque model, the effects of the drilling parameters on the friction-reducing performance of the CHSDS are analyzed systematically. The results show that the friction reduction effect in the inclined section is the most significant, followed by that in the horizontal section, whereas there is almost no impact in the vertical section. Friction reduction increases with the rotary speed and the drilling fluid density, whereas it decreases with the increase in the surface weight-on-bit and the bit reaction torque. Field tests confirm the separation and meshing function of the CHSDS. The developed controllable hybrid steering and friction-reducing technology provides an alternative approach for the safe and high-efficiency drilling of horizontal wells.http://dx.doi.org/10.1155/2021/6688656 |
| spellingShingle | Jianyan Zou Ping Chen Tianshou Ma Yang Liu Xingming Wang Drag-Reduction Performance Evaluation of Controllable Hybrid Steering Drilling System Shock and Vibration |
| title | Drag-Reduction Performance Evaluation of Controllable Hybrid Steering Drilling System |
| title_full | Drag-Reduction Performance Evaluation of Controllable Hybrid Steering Drilling System |
| title_fullStr | Drag-Reduction Performance Evaluation of Controllable Hybrid Steering Drilling System |
| title_full_unstemmed | Drag-Reduction Performance Evaluation of Controllable Hybrid Steering Drilling System |
| title_short | Drag-Reduction Performance Evaluation of Controllable Hybrid Steering Drilling System |
| title_sort | drag reduction performance evaluation of controllable hybrid steering drilling system |
| url | http://dx.doi.org/10.1155/2021/6688656 |
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