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公开(公告)号：US20160069165A1
公开(公告)日：2016-03-10
申请号：US14945033
申请日：2015-11-18
IPC分类号： E21B41/00
CPC分类号： E21B41/0007 , E21B23/006 , E21B29/005 , E21B29/12 , E21B31/18 , E21B33/038 , E21B33/068
摘要： A wellhead latch assembly may include one or more latches for attaching to a wellhead and allowing removal of the wellhead during a well abandonment process. The wellhead latch assembly may include an inner core coupled to the latches, and an outer sleeve for selectively latching and unlatching the latches to the wellhead. The inner core may abut the wellhead and can include a groove having circumferential and/or longitudinal features. The outer sleeve may include a pin which travels within the groove and a set of cut-outs for alignment with the latches. When the cut-outs align with the latches, the latches may expand radially outward and disengage the wellhead. As the outer sleeve moves axially or rotationally relative to the inner core, the latches may fall out of alignment with the cut-outs and move radially inwardly to engage or capture the wellhead.
摘要翻译： 井口闩锁组件可以包括用于附接到井口的一个或多个闩锁，并且在井放弃过程中允许移除井口。 井口闩锁组件可以包括联接到闩锁的内芯，以及用于选择性地将闩锁闩锁和解锁到井口的外套筒。 内芯可以邻接井口，并且可以包括具有圆周和/或纵向特征的凹槽。 外套筒可以包括在槽内行进的销和用于与闩锁对准的一组切口。 当切口与闩锁对齐时，闩锁可以径向向外扩展并且使井口脱离。 当外套筒相对于内芯轴向或旋转地移动时，闩锁可能会与切口脱开并且径向向内移动以接合或捕获井口。
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公开(公告)号：US09222328B2
公开(公告)日：2015-12-29
申请号：US14098096
申请日：2013-12-05
IPC分类号： E21B7/12 , E21B33/068 , E21B23/00 , E21B29/00 , E21B33/038
CPC分类号： E21B41/0007 , E21B23/006 , E21B29/005 , E21B29/12 , E21B31/18 , E21B33/038 , E21B33/068
摘要： A wellhead latch assembly may include one or more latches for attaching to a wellhead and allowing removal of the wellhead during a well abandonment process. The wellhead latch assembly may include an inner core coupled to the latches, and an outer sleeve for selectively latching and unlatching the latches to the wellhead. The inner core may abut the wellhead and can include a groove having circumferential and/or longitudinal features. The outer sleeve may include a pin which travels within the groove and a set of cut-outs for alignment with the latches. When the cut-outs align with the latches, the latches may expand radially outward and disengage the wellhead. As the outer sleeve moves axially or rotationally relative to the inner core, the latches may fall out of alignment with the cut-outs and move radially inwardly to engage or capture the wellhead.
摘要翻译： 井口闩锁组件可以包括用于附接到井口的一个或多个闩锁，并且在井放弃过程中允许移除井口。 井口闩锁组件可以包括联接到闩锁的内芯，以及用于选择性地将闩锁闩锁和解锁到井口的外套筒。 内芯可以邻接井口，并且可以包括具有圆周和/或纵向特征的凹槽。 外套筒可以包括在槽内行进的销和用于与闩锁对准的一组切口。 当切口与闩锁对齐时，闩锁可以径向向外扩展并且使井口脱离。 当外套筒相对于内芯轴向或旋转地移动时，闩锁可能会与切口脱开并且径向向内移动以接合或捕获井口。
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公开(公告)号：US20140158367A1
公开(公告)日：2014-06-12
申请号：US14098096
申请日：2013-12-05
IPC分类号： E21B33/068
CPC分类号： E21B41/0007 , E21B23/006 , E21B29/005 , E21B29/12 , E21B31/18 , E21B33/038 , E21B33/068
摘要： A wellhead latch assembly may include one or more latches for attaching to a wellhead and allowing removal of the wellhead during a well abandonment process. The wellhead latch assembly may include an inner core coupled to the latches, and an outer sleeve for selectively latching and unlatching the latches to the wellhead. The inner core may abut the wellhead and can include a groove having circumferential and/or longitudinal features. The outer sleeve may include a pin which travels within the groove and a set of cut-outs for alignment with the latches. When the cut-outs align with the latches, the latches may expand radially outward and disengage the wellhead. As the outer sleeve moves axially or rotationally relative to the inner core, the latches may fall out of alignment with the cut-outs and move radially inwardly to engage or capture the wellhead.
摘要翻译： 井口闩锁组件可以包括用于附接到井口的一个或多个闩锁，并且在井放弃过程中允许移除井口。 井口闩锁组件可以包括联接到闩锁的内芯，以及用于选择性地将闩锁闩锁和解锁到井口的外套筒。 内芯可以邻接井口，并且可以包括具有圆周和/或纵向特征的凹槽。 外套筒可以包括在槽内行进的销和用于与闩锁对准的一组切口。 当切口与闩锁对齐时，闩锁可以径向向外扩展并且使井口脱离。 当外套筒相对于内芯轴向或旋转地移动时，闩锁可能会与切口脱开并且径向向内移动以接合或捕获井口。
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