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1. 发明申请

WO2003048506A1 DOWNHOLE TOOL RETENTION APPARATUS 审中-公开
标题翻译：卧式工具保持装置
公开(公告)号：WO2003048506A1
公开(公告)日：2003-06-12
申请号：PCT/GB2002/005354
申请日：2002-11-27
申请人： WEATHERFORD/LAMB, INC. , HARDING, Richard, Patrick , GUILLORY, Brett, W. , TOKAR, John, W.
发明人： GUILLORY, Brett, W. , TOKAR, John, W.
IPC分类号： E21B17/046
CPC分类号： E21B17/046
摘要： Apparatus for attaching a downhole isolation, production, or testing tool is disclosed such that the tool is mechanically attached to a mandrel in a manner that is highly resistant to axial movement. The mechanical connection resists high temperatures, high pressures, and corrosive fluids and gases that may be encountered in the well without the use of welding to a casing mandrel. In general, the connection includes at least one groove or channel (48) cut in an outer wall of the casing mandrel, and at least one partially or fully annular slot (62) on the inside surface of the tool oriented to correspond with the groove(s) in the outer wall of the casing mandrel. At least one lock (64) is situated in the corresponding slot (62) and the groove (48). The lock (64) engages the flanks of the slot (62) and groove (48) sufficiently to resist shears loads applied by compression or tension in the string, and thereby restrains axial movement of the valve assembly relative to the casing mandrel. In one embodiment, the lock is one or more wires (64), although other mechanical locking devices may be installed to provide the same function.
摘要翻译：公开了用于附接井下隔离，生产或测试工具的装置，使得该工具以高度抵抗轴向移动的方式机械附接到心轴。机械连接抵抗井中可能遇到的高温，高压和腐蚀性流体和气体，而不需要对套管芯轴进行焊接。通常，连接包括在壳体心轴的外壁中切割的至少一个凹槽或通道（48），并且在工具的内表面上的至少一个部分或全部环形的槽（62），其定向成与凹槽对应（一个或多个）在套筒心轴的外壁中。至少一个锁（64）位于相应的槽（62）和凹槽（48）中。锁（64）充分接合槽（62）和凹槽（48）的侧面以抵抗通过柱中的压缩或张力施加的剪切负载，从而抑制阀组件相对于套筒心轴的轴向运动。在一个实施例中，锁是一个或多个电线（64），尽管可以安装其他机械锁定装置以提供相同的功能。

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