公开(公告)号：US20120012771A1

公开(公告)日：2012-01-19

申请号：US12804252

申请日：2010-07-16

申请人： Lale Korkmaz ,  Michael H. Johnson ,  André J. Porter

发明人： Lale Korkmaz ,  Michael H. Johnson ,  André J. Porter

IPC分类号： F16K5/06

CPC分类号： F16K15/044 ,  E21B23/04 ,  F16K15/183 ,  F16K17/0406

摘要： Apparatuses for restricting fluid flow through a well conduit comprise a tubular member having a helically-shaped seat member disposed within the tubular member. The helically-shaped seat member comprises first and second ends, a first position in which the first and second ends relative to each other to provide a first diameter opening through the helically-shaped seat member for receiving a plug element, and a second position in which the second end is disposed axially below and radially outward relative to the first end to provide a second diameter opening through the helically seat member, the second diameter being greater than the first diameter thereby facilitating the plug element passing through the helically-shaped seat.

摘要翻译： 用于限制流体通过井管道的流体的装置包括管状构件，其具有设置在管状构件内的螺旋形座位构件。 螺旋状的座椅构件包括第一和第二端，第一位置和第二位置，第一位置和第二端相对于彼此以提供通过螺旋状的座椅构件的第一直径开口用于容纳插头元件，第二位置 其第二端相对于第一端轴向设置在轴向下方并径向向外设置，以提供通过螺旋形座椅构件的第二直径开口，第二直径大于第一直径，从而有助于插塞元件穿过螺旋形座。