石油科技论坛

石油科技论坛 ›› 2011, Vol. 30 ›› Issue (2): 61-62,65.DOI: 10.3969/j.issn.1002-302x.2011.02.018

• 成果推介 • 上一篇    下一篇

定向PDC钻头

于连杰1, 魏向辉1, 张松峰1, 左惠明1, 田波1, 王崇武2, 王全勇3   

  1. 1. 中国石油渤海装备制造有限公司中成机械制造公司;
    2. 中国石油渤海钻探工程有限公司第三钻井公司;
    3. 中国石油渤海钻探工程有限公司第一钻井公司
  • 收稿日期:2011-02-16 出版日期:2011-04-25 发布日期:2015-12-14

Directional PDC Bit

Yu Lian-jie1, Wei Xiang-hui1, Zhang Song-feng1, Zuo Hui-ming1, Tian Bo1, Wang Chong-wu2, Wang Quan-yong3   

  1. 1. Zhongcheng Machinery Manufacturing Company of CNPC Bohai Equipment Manufacturing Co., Ltd.;
    2. No. 3 Drilling Company of CNPC Bohai Drilling Engineering Company Limited;
    3. No. 1 Drilling Company of CNPC Bohai Drilling Engineering Company Limited
  • Received:2011-02-16 Online:2011-04-25 Published:2015-12-14

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摘要： 为解决常规PDC钻头在定向作业时产生的反扭矩大而造成工具面不稳定、造斜作业时常常停顿的问题,中国石油渤海装备中成机械制造公司研究开发了一种特殊的定向PDC钻头。该定向PDC钻头采用紧凑型结构设计、应用低扭矩高效破岩理论、预破应力布齿和井底流场仿真计算等技术,减少了切削反扭矩对定向工具面的影响,钻进扭矩变化小、工具面摆放稳定、定向能力强、造斜效果好、机械钻速快、使用寿命长、技术水平先进,定向效果处于国内领先水平。定向PDC钻头作为特性钻头的一种,应用前景十分广阔。

关键词: PDC, 钻头, 定向, 钻井

Abstract: Directional PDC bit is mainly used to solve a series of problems in directional wells, including big anti-torque, unstable tool surface and occasional pauses of deflecting operation. With compact structure, the bit is designed based on the low-torque and high rock breaking theory, the re-broken tooth placement technique and the bottom flow field simulation technique. Using the bit, the impact of cutting anti-torque on directional orientation tool surface is minimized, drilling torque changes little, tool surface is placed stably and it has effective directional capability, good deflecting effect, fast ROP and long life. Directional PDC bit, as a characteristic bit, has a broad application prospect.

Key words: PDC bit, directional, drilling

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