| 钻井机器人偏心流道冲蚀实验及数值模拟研究 |
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| 引用本文： | 肖晓华,代继樑,朱海燕,赵建国. 钻井机器人偏心流道冲蚀实验及数值模拟研究[J]. 西南石油大学学报(自然科学版), 2021, 43(2): 167-177. DOI: 10.11885/j.issn.1674-5086.2020.11.02.01 |
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| 作者姓名： | 肖晓华 代继樑 朱海燕 赵建国 |
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| 作者单位： | 1. 西南石油大学网络与信息化中心, 四川 成都 610500;2. 西南石油大学机电工程学院, 四川 成都 610500;3. 油气藏地质及开发工程国家重点实验室·成都理工大学, 四川 成都 610059 |
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| 基金项目： | 国家自然科学基金(52004232,U19A2097,2018YFC0310200);四川省科技计划资助(2019YFG0458,2021YJ0403)。 |
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| 摘 要： | 为解决大位移水平井连续油管钻井管柱屈曲的难题,提出了钻井液驱动的"钻井机器人+动力钻具"的连续油管钻井新方法.依据机器人外形尺寸、水力压耗、内部结构、加工制造等优化设计出了三段式偏心圆流道结构.提出了三段式偏心圆流道冲蚀分析方法,首先,建立了钻井机器人三段式偏心圆流道流固耦合冲蚀数值模型,分析了粒径参数、速度参数等对冲...
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| 关 键 词： | 连续油管钻井 钻井机器人 流道设计 冲蚀 数值模拟 |
| 收稿时间： | 2020-11-02 |
Experimental and Numerical Simulation Research on Eccentric Flow Channel Erosion of Drilling Robot |
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| XIAO Xiaohua,DAI Jiliang,ZHU Haiyan,ZHAO Jianguo. Experimental and Numerical Simulation Research on Eccentric Flow Channel Erosion of Drilling Robot[J]. Journal of Southwest Petroleum University(Seience & Technology Edition), 2021, 43(2): 167-177. DOI: 10.11885/j.issn.1674-5086.2020.11.02.01 |
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| Authors: | XIAO Xiaohua DAI Jiliang ZHU Haiyan ZHAO Jianguo |
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| Affiliation: | 1. Network & Information Center, Southwest Petroleum University, Chengdu, Sichuan 610500, China;2. School of Mechanical and Electrical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China;3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China |
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| Abstract: | In order to solve the problem of coiled tubing buckling drilling in extending reach in horizontal wells,a new coiled tubing drilling method of"drilling robot+power drilling tool"driven by drilling fluid was proposed.According to the dimensions,hydraulic pressure consumption,internal structure and manufacturing of the robot,a three-stage eccentric circular flow channel structure is designed.A numerical simulation-unit experiment-numerical simulation method was proposed for the erosion analysis of drilling robot’s three-stage eccentric circular flow channel.Firstly,a numerical model for the fluid-structure coupling erosion of drilling robot’s three-stage eccentric circular flow channel was established,and the influence laws of particle size parameters and velocity parameters on the erosion rate were analyzed.Secondly,the experiment of drilling robot eccentric channel erosion was carried out to calibrate the numerical model of drilling robot three-stage eccentric circular channel fluid-structure coupling erosion.Based on this,the numerical simulation research of drilling robot three-stage eccentric circular flow channel is further carried out.The results show that the optimal inclination Angle of the three-stage eccentric circular flow channel is 5°.When the flow channel wall thickness is 5 mm,the eccentric flow channel life is more than 300 h,which meets the working life requirements of general downhole tools.The position of main erosion point and erosion pattern of flow passage are in good agreement with the experiment.This provides a theoretical basis for the structural design and engineering application of the drilling robot and is of great significance for promoting the popularization and application of coiled tubing drilling technology in extended-reach horizontal wells. |
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| Keywords: | coiled tubing drilling drilling robot runner design erosion numerical simulation |
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