李然然, 张凯, 柴麟, 张龙, 刘宝林. 机械式垂直钻具稳定平台影响因素模拟研究[J]. 石油钻探技术, 2022, 50(3): 51-60. DOI: 10.11911/syztjs.2021106
引用本文: 李然然, 张凯, 柴麟, 张龙, 刘宝林. 机械式垂直钻具稳定平台影响因素模拟研究[J]. 石油钻探技术, 2022, 50(3): 51-60. DOI: 10.11911/syztjs.2021106
LI Ranran, ZHANG Kai, CHAI Lin, ZHANG Long, LIU Baolin. Simulation Research on Influencing Factors of Stabilization Platform for Mechanical Vertical Drilling Tools[J]. Petroleum Drilling Techniques, 2022, 50(3): 51-60. DOI: 10.11911/syztjs.2021106
Citation: LI Ranran, ZHANG Kai, CHAI Lin, ZHANG Long, LIU Baolin. Simulation Research on Influencing Factors of Stabilization Platform for Mechanical Vertical Drilling Tools[J]. Petroleum Drilling Techniques, 2022, 50(3): 51-60. DOI: 10.11911/syztjs.2021106

机械式垂直钻具稳定平台影响因素模拟研究

Simulation Research on Influencing Factors of Stabilization Platform for Mechanical Vertical Drilling Tools

  • 摘要: 配备机械式稳定平台的自动垂直钻具,由于无电子元件、耐高温性能好、成本相对低廉,是深井钻井中防斜打直的较好选择,但如何进一步提高该工具的纠斜精度是一个难点。为此,针对机械式稳定平台的动力学特性,基于典型的稳定平台结构及其工作原理,建立了机械式稳定平台理论分析模型及Adams动力学模拟模型,通过理论计算及模拟计算,研究了影响稳定平台性能的因素,确定了影响机械式稳定平台性能的主要因素及其影响规律。研究得出:偏重块长度和内外半径、井斜角和盘阀间动摩擦系数对稳定平台性能的影响较大。根据研究结果,总结出该机械式稳定平台结构参数的优化方向以及推荐取值,可为进一步优化设计机械式稳定平台的自动垂直钻具提供参考。

     

    Abstract: As the automatic vertical drilling tool equipped with a mechanical stable platform requires no electronic components and possesses good high-temperature resistance with low costs, it is a good choice for deviation prevention in deep well drilling. However,it has difficulty in further improving the deviation correction accuracy of the tool. Therefore, according to its dynamic characteristics, two mechanical stable platform models: a theoretical analytical one, and Adams dynamic simulation one were built on the basis of a typical stable platform structure and its working principle. Then, theoretical calculations and simulation calculations were conducted to study the factors affecting the performance of the stable platform, and the main influencing factors and laws governing the performance of the mechanical stable platform were determined. The research results revealed key performance influencers, which included the length, the inner and outer radius of the eccentric block, the inclination angle, and the dynamic friction coefficient between disc valves.Based on the results, the optimization direction and recommended value of the structural parameters of the mechanical stable platform were also summarized, and they can provide a reference for further design optimization for automatic vertical drilling tools with mechanical stable platforms.

     

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