公开(公告)号：US20130105226A1

公开(公告)日：2013-05-02

申请号：US13287335

申请日：2011-11-02

申请人： Les Banta ,  Tim Coil ,  Daniel Webb ,  Suljo Haskic

发明人： Les Banta ,  Tim Coil ,  Daniel Webb ,  Suljo Haskic

IPC分类号： E21B19/24

CPC分类号： E21B19/24

摘要： A bushing of the type used to limit wobble in drill pipe, the improvement comprising a bushing defined by two halves, each half having two ends adapted to buttingly engage corresponding ends of the other, and each further defining a receiver section along one of its ends; a flexible hinge piece matingly joined to the receiver sections with the opposite ends of the halves remaining free to move relative to one another, whereby the halves are rotatably affixed together at one end, but the opposite ends remain free to open. The bushing may be comprised of a first polymeric material, and the hinge piece comprised of a second, more flexible, polymeric material. Each half of the bushing may have mounted thereto a handle projecting upwardly.

摘要翻译： 一种用于限制钻杆摆动的类型的衬套，其改进包括由两半限定的衬套，每个半部具有两个端部，该两个端部适于对接另一个的相应端部，并且每个端部沿其端部之一限定接收器部分 ; 一个柔性的铰链件，其配合地接合到接收器部分，其中两半的相对端保持自由地相对于彼此移动，由此两半在一端可旋转地固定在一起，但相对的两端保持自由打开。 衬套可以由第一聚合物材料构成，并且铰链件由第二，更柔性的聚合材料组成。 衬套的每一半可以安装有向上突出的手柄。