石油学报 ›› 2005, Vol. 26 ›› Issue (3): 98-101.DOI: 10.7623/syxb200503022

• 石油工程 • 上一篇    下一篇

FG型防斜工具的设计研究

付胜利, 高德利   

  1. 中国石油大学石油天然气工程学院 北京 102249
  • 收稿日期:2004-02-20 修回日期:2004-06-01 出版日期:2005-05-25 发布日期:2010-05-21
  • 作者简介:付胜利,男,1964年8月生,1985年毕业于大庆石油学院,现为中国石油大学(北京)在读博士生,主要从事管柱力学研究.E-mail:fushli@163.com

Design of FG type anti-deviation device

FU Sheng, GAO De   

  1. Faculty of Petroleum Engineering, China University of Petroleum, Beijing 102249, China
  • Received:2004-02-20 Revised:2004-06-01 Online:2005-05-25 Published:2010-05-21

摘要: 钟摆钻具、满眼钻具、偏心钻具等防斜钻具组合在特定的条件下起到了一定的防斜作用,但其防斜效果受钻井操作参数的影响较大,有时不得不降低钻进速度以求得到较小的井斜率。为了解决上述问题,设计了FG新型复合式高效防斜工具。FG型防斜工具的显著特点是其防斜效果受钻压、转速等钻井参数影响较小,钻头侧向力大小基本不随钻压改变,在旋转过程中钻头侧向力方向可以不断变化。FG型防斜工具可以在正常钻压及转速条件下钻进,并将井斜控制在较小的范围之内。理论研究和算例分析表明,FG型防斜工具具有良好的防斜效果。

关键词: 垂直钻井, 井斜控制, 防斜工具, 钻压, 钻井参数, 钻头侧向力

Abstract: Most conventional anti-deviation devices have inherent limitations,and their anti-deviation effects are greatly affected by drilling parameters such as bit weight and rotary speed. In order to overcome these limitations,a new type FG anti-deviation device was designed. The bit side force of FG type anti-deviation device is almost never affected by drilling parameters,and the direction of bit side force continuously vary while drill string is rotating. The FG type anti-deviation device can operate under the normal bit weight and rotary speed. The theoretical analysis and case history proved the feasibility of this device.

Key words: vertical drilling, deviation control, anti-deviation device, bit weight, drilling parameter, bit side force

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