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力学与实践 ›› 2013, Vol. 35 ›› Issue (1): 55-59.doi: 10.6052/1000-0879-12-281

• 应用研究 • 上一篇    下一篇

旋转导向钻具组合力学分析

唐雪平, 苏义脑, 葛云华, 盛利民, 李铁军   

  1. 中国石油集团钻井工程技术研究院,北京 100083
  • 收稿日期:2012-07-18 出版日期:2013-02-08 发布日期:2013-02-07
  • 通讯作者: 唐雪平 E-mail:txpdri@cnpc.com.cn
  • 基金资助:
    "十二五" 国家科技重大专项项目"旋转导向系统研制-井下导向工具机理研究"(2011ZX05021-005) 资助.

BHA MECHANICAL ANALYSIS FOR ROTARY STEERING DRILLING SYSTEM

TANG Xueping, SU Yinao, GE Yunhua, SHENG Limin, LI Tiejun   

  1. China National Petroleum Corporation, Drilling Research Institute, Beijing 100083, China
  • Received:2012-07-18 Online:2013-02-08 Published:2013-02-07

摘要: 旋转导向系统代表了当今定向钻井的先进水平,是井眼轨道控制技术的发展方向. 为了解决旋转导向钻井轨道控制问题,进行了旋转导向钻具组合(rotary steering bottom hole assembly, RS-BHA) 力学分析. 应用纵横弯曲法建立了典型的柔性RS-BHA 三维力学分析模型,得到了钻头侧向力和导向参数间的相互关系,进而根据极限曲率法可预测旋转导向工具的造斜能力,并计算设计井眼轨道需要的导向参数. 通过力学分析,可以优化RS-BHA,了解井眼轨道控制规律,为旋转导向工具设计和定向钻井自动控制提供理论依据.

关键词: 旋转导向系统|钻具组合|纵横弯曲法|造斜能力|导向参数

Abstract: the rotary steering drilling system represents the advanced level of the directional drilling, and the development direction of the well-path control technology. In order to solve the problem of the well-path control for a rotary steering drilling, the rotary steering bottom hole assembly (RS-BHA) analysis is made in this paper. Applying the beam-column theory, a three-dimensional mechanical model for a typical RS-BHA is established. The relation between the bit side force and the steering parameter is derived, and based on the limiting curvature method, the building capability of the rotary steering tool can be predicted, and the steering parameter for the planned well-path is calculated. The RS-BHA can be optimized through a mechanical analysis, and the rules of the well-path control are obtained, which can provide a theoretical basis for the design of the rotary steering drilling tool and the automatic control in the directional drilling.

Key words: rotary steering drilling system|BHA|beam-column theory|building capability|steering parameter

中图分类号: 

  • O39