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公开(公告)号：US06029745A
公开(公告)日：2000-02-29
申请号：US10782
申请日：1998-01-22
摘要： A system has been invented for cutting wellbore casing and retrieving casing and a wellbore device connected thereto, the system, in one aspect, including engaging apparatus for releasably holding the wellbore device, casing cutting apparatus interconnected with and below the engaging apparatus for cutting casing in a wellbore, the wellbore device connected to the casing, and locking apparatus for selectively and releasably locking the engaging apparatus holding the wellbore device. In one aspect the engaging apparatus has one or more movable latching arms for releasably holding a wellbore device, e.g. but not limited to a wellhead and the arms are mounted below a top bonnet that holes therethrough so that the flushing of debris and/or cutting from the tops of the arms is facilitated. In one aspect, a drain sub is used to reduce flow to the casing cutter so that the circulation of debris and/or cuttings is inhibited.
摘要翻译： 已经发明了一种用于切割井筒壳体和回收壳体的系统以及与其连接的井眼装置，该系统在一个方面包括用于可释放地保持井筒装置的接合装置，与用于切割壳体的接合装置互连的壳体切割装置 井眼，连接到壳体的井筒装置，以及用于选择性地和可释放地锁定保持井眼装置的接合装置的锁定装置。 在一个方面，接合装置具有一个或多个可移动的锁定臂，用于可释放地保持井眼装置，例如， 但不限于井口，并且臂被安装在穿过其的孔的顶盖的下方，从而便于从臂的顶部冲洗碎屑和/或切割。 在一个方面，使用排水管减少到套管切割器的流动，从而抑制碎屑和/或切屑的循环。
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公开(公告)号：US20110220357A1
公开(公告)日：2011-09-15
申请号：US13047658
申请日：2011-03-14
IPC分类号： E21B29/00
CPC分类号： E21B29/005 , E21B29/002
摘要： A method for milling a tubular cemented in a wellbore includes deploying a bottomhole assembly (BHA) into the wellbore through the tubular, the BHA comprising a window mill; and extending arms of the window mill and radially cutting through the tubular, thereby forming a window through the tubular, wherein a body portion of each window mill arm engages and stabilizes from an inner surface of the tubular after a blade portion of each window mill arm cuts through the tubular.
摘要翻译： 用于研磨在井眼中胶结的管状物的方法包括通过管状物将井底组件（BHA）部署到井筒中，BHA包括窗口磨; 并且延伸所述窗玻璃的臂并且径向地切割穿过所述管状物，从而形成通过所述管状物的窗口，其中每个窗口磨机臂的主体部分在每个窗口磨机臂的刀片部分之后从所述管状物的内表面接合并稳定 穿过管子。
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公开(公告)号：US09022117B2
公开(公告)日：2015-05-05
申请号：US13047658
申请日：2011-03-14
IPC分类号： E21B29/00
CPC分类号： E21B29/005 , E21B29/002
摘要： A method for milling a tubular cemented in a wellbore includes deploying a bottomhole assembly (BHA) into the wellbore through the tubular, the BHA comprising a window mill; and extending arms of the window mill and radially cutting through the tubular, thereby forming a window through the tubular, wherein a body portion of each window mill arm engages and stabilizes from an inner surface of the tubular after a blade portion of each window mill arm cuts through the tubular.
摘要翻译： 用于研磨在井眼中胶结的管状物的方法包括通过管状物将井底组件（BHA）部署到井筒中，BHA包括窗口磨; 并且延伸所述窗玻璃的臂并且径向地切割穿过所述管状物，从而形成通过所述管状物的窗口，其中每个窗口磨机臂的主体部分在每个窗口磨机臂的刀片部分之后从所述管状物的内表面接合并稳定 穿过管子。
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