| 双弯螺杆纠斜效果分析与应用 |
| 投稿时间：2017-03-22 修订日期：2017-06-14 点此下载全文 |
| 引用本文：靖伟东.双弯螺杆纠斜效果分析与应用[J].钻探工程,2017,44(8):55-58，62.JING Wei-dong. Analysis on Double-bend Screw Drilling and the Application[J]. Drilling Engineering, 2017,44(8):55-58，62. |
| 摘要点击次数: 1024 |
| 全文下载次数: 762 |
|
|
| 中文摘要:双弯螺杆是指弯接头加弯壳体螺杆的钻具组合形式。采用双弯螺杆纠斜，可以获得较大的造斜率，解决在特定条件下单弯螺杆纠斜困难的问题。选择合适角度的弯接头，减少双弯螺杆造斜进尺长度，是控制井眼“狗腿”度，保证后期工作（扩孔和下套管）顺利进行的重要因素。以在大口径钻孔中纠斜为例，列举了使用单弯螺杆纠斜遇到的困难，通过双弯螺杆造斜效果的分析，提出了一套采用双弯螺杆进行纠斜的工艺，最终实现了钻孔的纠斜成功。 |
| 中文关键词:双弯螺杆 纠斜 轨迹控制 “狗腿”度 扩孔 |
| |
| Analysis on Double-bend Screw Drilling and the Application |
|
|
| Abstract:Double-bend screw refers to the drilling tools combination form of bending joint and bend housing screw. The use of double-bend screw for hole straightening can get larger built-up rate to solve the difficult straightening while using the single-bend screw in some specific conditions. Selecting proper angle of bend joint and shortening deflecting distance of double-bend screw are important factors to control dogleg angle, which can ensure later work of smooth reaming and casing. Take the straightening case in a large diameter drilling, the difficulties encountered in straightening with single-bend screw are listed, by the analysis on the deflecting effect of double-bend screw, a set of straightening technology with double-bend screw is put forward and successful borehole straightening is finally realized. |
| keywords:double-bend screw hole straightening trajectory control dogleg angle reaming |
| 查看全文 查看/发表评论 下载PDF阅读器 |
