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1. 发明申请

WO02095180A2 DOWNHOLE TOOL 审中-公开
标题翻译：卧式工具
公开(公告)号：WO02095180A2
公开(公告)日：2002-11-28
申请号：PCT/GB0202381
申请日：2002-05-20
申请人： ROTECH HOLDINGS LTD , SUSMAN HECTOR FILLIPUS ALEXAND
发明人： SUSMAN HECTOR FILLIPUS ALEXAND
IPC分类号： E21B4/14 , E21B6/06 , E21B31/113
CPC分类号： E21B31/113 , E21B4/14 , E21B6/06
摘要： There is disclosed a downhole tool for generating a longitudinal mechanical load. In one embodiment, a downhole hammer (10) is disclosed which is activated by applying a load on the hammer and supplying pressurised fluid to the hammer. The hammer includes a shuttle valve (14) and a piston (16) that are moveable between first and further positions, seal faces (18, 20) of the shuttle valve (14) and piston (16) being released when the valve and the piston are in their respective further positions, to allow fluid flow through the tool. When the seal is released, the piston (16) impacts a remainder of the tool to generate a mechanical load. The mechanical load is cyclical by repeated movements of the shuttle valve (14) and piston (16).
摘要翻译：公开了用于产生纵向机械载荷的井下工具。在一个实施例中，公开了一种井下锤（10），其通过在锤上施加负载并将加压流体供应到锤来激活。锤子包括梭阀（14）和活塞（16），活塞可在第一和另外的位置之间移动，梭阀（14）的密封面（18,20）和活塞（16）在阀和阀活塞处于其各自的另一位置，以允许流体流过工具。当密封件被释放时，活塞（16）冲击工具的其余部分以产生机械载荷。机械载荷通过梭阀（14）和活塞（16）的重复运动而循环。

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