公开(公告)号：US20110214871A1

公开(公告)日：2011-09-08

申请号：US12716921

申请日：2010-03-03

申请人： Trung Leduc ,  Huward Paul Fontenot ,  Alberto Zubia ,  Robert James Costo

发明人： Trung Leduc ,  Huward Paul Fontenot ,  Alberto Zubia ,  Robert James Costo

IPC分类号： E21B21/00

CPC分类号： E21B33/085 ,  E21B17/01 ,  F16C41/005 ,  F16C2235/00 ,  F16C2352/00

摘要： A method of flushing a wellbore fluid from a downhole tool containing a bearing package includes pumping hydraulic oil through at least one of a hydraulic inlet line and at least one of a pneumatic inlet line connected to the main housing and into an annulus formed between the bearing package and a main housing of the downhole tool, wherein the hydraulic oil replaces the wellbore fluid in the annulus, removing the wellbore fluid from the annulus through at least one hydraulic outlet line and at least one pneumatic outlet line connected to the main housing, pumping air through the at least one pneumatic inlet line connected to the main housing and removing the hydraulic oil from the at least one pneumatic inlet line connected to the main housing, and removing the hydraulic oil through at least one pneumatic outlet line connected to the main housing.

摘要翻译： 从包含轴承组件的井下工具冲洗井筒流体的方法包括：泵送液压油通过液压入口管线和至少一个连接到主壳体的气动入口管线中的至少一个并且形成在轴承 封装和井下工具的主壳体，其中液压油替代环形空间中的井眼流体​​，通过至少一个液压出口管线和连接到主壳体的至少一个气动出口管线从环空中移除井筒流体，泵送 空气通过连接到主壳体的至少一个气动入口管线并且从连接到主壳体的至少一个气动入口管线移除液压油，以及通过连接到主壳体的至少一个气动出口管线去除液压油 。

公开(公告)号：US5535938A

公开(公告)日：1996-07-16

申请号：US230747

申请日：1994-04-21

申请人： Trung Leduc

发明人： Trung Leduc

IPC分类号： B23K37/053

CPC分类号： B23K37/0531

摘要： An improved internal line up clamp (10) is disclosed which has an integral back up ring (12). A first set of pipe clamps (22) move radially outward to engage the inner surface of a first pipe (14). A second set of pipe clamps (62) and a set of back up ring segments (202) are simultaneously moved radially outward into engagement with the inner surface of the pipes. The back up ring segments (202) are spring loaded to exert a relatively constant back up force against the inner surface of the pipes at the weld. The back up ring segments support the shoe elements (220). The shoe elements are spring loaded to accommodate diameter mismatch and non-circularity of the pipe ends. The back up ring segments rotate about a radial axis from the pipe centerline. Tapered ends on the back up ring segments provide for the decrease in ring circumference necessary to lower the ring segments.

摘要翻译： 公开了一种改进的内部配线夹（10），其具有整体的支撑环（12）。 第一组管夹（22）径向向外移动以接合第一管（14）的内表面。 第二组管夹（62）和一组备用环段（202）同时径向向外移动，以与管的内表面接合。 备用环段（202）是弹簧加载的，以在焊缝处对管道的内表面施加相对恒定的反作用力。 支撑环段支撑鞋元件（220）。 鞋元件是弹簧加载的，以适应管端的直径不匹配和非圆形度。 后备环段围绕管道中心线的径向轴线旋转。 备用环段上的锥形末端提供降低环形段所需的减小环形周长。