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Contents:2019,Vol:24,Issue(2):65-72 |
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Citation: |
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FU Meng, LI Jianghong, WU Yafeng, WU Ruobin, QIU Wenwei. Observer-based State Feedback Control to Suppress Stick-slip Vibrations in Oil Well Drill-string[J]. International Journal of Plant Engineering and Management, 2019, 24(2): 65-72 |
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| Observer-based State Feedback Control to Suppress Stick-slip Vibrations in Oil Well Drill-string |
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| FU Meng1,2, LI Jianghong1, WU Yafeng1, WU Ruobin3, QIU Wenwei4 |
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1. School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China;
2. The 31 st Research Institute of CASIC, Beijing 100074, China;
3. Beijing Electric Power Corporation in Fangshan, Beijing 102488, China;
4. Honors College, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| In drilling field, stick-slip vibrations of the drill-string are the main reason for the failure of the drilling system. To suppress the undesired stick-slip vibrations, an observer-based state feedback control method is proposed. The drilling system is described by a lumped parameter model including a Karnopp friction torque model. A state observer is designed to estimate the bit velocity in bottom hole and a state feedback controller is proposed to control the top drive velocity. By simulation, the performance of the control algorithm is demonstrated. Based on the control algorithm, a stick-slip vibration control system is developed. Test results show that the control system can effectively eliminate stick-slip vibrations of the drill-string and can be applied to the drilling field. |
| Key words:
drill-string
stick-slip vibration
state observer
state feedback controller
test
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| Received: 2019-03-15
Revised:
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| DOI: 10.13434/j.cnki.1007-4546.2019.0201 |
| Corresponding author:
Email： |
Author description: FU Meng is a doctor candidate, Northwestern Polytechnical University. His research interest is propulsion theory and engineering of aeronautics and astronautics. fumeng@mail.nwpu.edu.cn
LI Jianghong is an associate professor, Northwestern Polytechnical University. His research interest is propulsion theory and engineering of aeronautics and astronautics. jhli@nwpu.edu.cn
WU Yafeng is a professor, Northwestern Polytechnical University. His research interest is propulsion theory and engineering of aeronautics and astronautics. yfwu@nwpu.edu.cn
WU Ruobin is a bachelor, Beijing Electric Power Corporation in Fangshan. Her research interest is Electrical Engineering. w67460034@126.com
QIU Wenwei is an undergraduate, Northwestern Polytechnical University. His research interest is aircraft design and engineering. blackhawkqiuwenwei@mail.nwpu.edu.cn
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References: |
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