| 定向PDC钻头 |
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| 引用本文： | 于连杰,魏向辉,张松峰,左惠明,田波,王崇武,王全勇.定向PDC钻头[J].石油科技论坛,2011(2):61-62,65. |
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| 作者姓名： | 于连杰 魏向辉 张松峰 左惠明 田波 王崇武 王全勇 |
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| 作者单位： | [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 |
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| 基金项目： | “定向PDC钻头研制”(项目编号:C-09M030011) |
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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。
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| 关 键 词： | PDC 钻头 定向 钻井 |
Directional PDC Bit |
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| Authors: | Yu Lian-jie Wei Xiang-hui Zhang Song-feng Zuo Hui-ming Tian Bo Wang Chong-wu Wang Quan-yong |
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| Affiliation: | 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) |
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| 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. |
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| Keywords: | PDC bit directional drilling |
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