旋转接头的介绍与应用

Introduction and Application of the Swivel Clutch

旋转接头是用于井下钻具组合具有旋转功能的一种工具。当旋转接头安装在井下钻具组合时,可以使其上面的管柱单独旋转的同时下面的管柱不旋转。该功能可以通过旋转井下钻具组合的顶部,将重量施加在旋转接头下方的管柱上,可以减少在水平井或大位移井下入管柱时的扭矩和磨阻。

The swivel clutch is a tool used with down hole BHA which function as rotational clutch.When the swivel clutch placed in the BHA the string above the swivel clutch can be rotated alone while the string below the swivel clutch will remain no rotation.This feature will enable to apply the weight on the BHA below the swivel clutch by rotating the top part of the BHA,and reducing the torque and friction when deploy the string in the horizontal well or the extended reach well.