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12. 发明申请

WO2009035917A2 METHOD AND APPARATUS FOR MULTI-POSITIONING A SLEEVE 审中-公开
标题翻译：用于多位置套筒的方法和设备
公开(公告)号：WO2009035917A2
公开(公告)日：2009-03-19
申请号：PCT/US2008/075382
申请日：2008-09-05
申请人： BAKER HUGHES INCORPORATED , FAY, Peter, J.
发明人： FAY, Peter, J.
IPC分类号： E21B34/14
CPC分类号： E21B34/14
摘要： A tool for shifting a sleeve into at least one intermediate position between stops has a shifting key that only can move the sleeve a finite amount before it is forced out of contact with the sleeve. An overpull key is released for engagement with the sleeve before the shifting key is forced out. The overpull key resists movement until a noticeable predetermined force is applied at which point the overpull key is freed from the sliding sleeve for a normal release. If any key fails to release, an emergency release is provided that independently displaces the key so that the tool can be removed. The tool can be operated in either an uphole or a downhole direction to shift the sleeve depending on the orientation of the keys. Embodiments using a single key type are contemplated.
摘要翻译：用于将套管移动到止动器之间的至少一个中间位置的工具具有换档键，该换档键仅在套管被迫与套管脱离接触之前才能移动套管一定的量。在换档钥匙被推出之前，释放一个超拉键用于与套筒接合。超级按键阻止运动，直到施加明显的预定力，在此时超级按键从滑动套筒释放以用于正常释放。如果任何钥匙未能释放，则提供紧急释放装置，其独立地移动钥匙，以便可以移除工具。该工具可以在井上或井下方向操作，以根据键的方向移动套筒。预期使用单个键类型的实施例。

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