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    Pressure operated apparatus and method
    2.
    发明授权
    Pressure operated apparatus and method 有权

    公开(公告)号：US10711573B2

    公开(公告)日：2020-07-14

    申请号：US15749667

    申请日：2016-08-19

    Applicant: Weatherford U.K. Limited

    Inventor： Stephen Reid ,  Ian Jaffrey

    IPC: E21B34/10 ,  E21B34/08 ,  E21B23/04

    Abstract: A downhole apparatus comprises a piston mounted within a bore and being reconfigurable from a lock configuration to an unlock configuration in response to a pressure sequence applied within the bore. When the piston is in its lock configuration, a lock is supported by the piston such that the lock partially extends into the bore and engages a lock profile of the piston to restrict movement of the piston in a first direction towards its unlock configuration. In response to a first event of the pressure sequence, the piston is moveable in a second direction to desupport the lock and permit the lock to be wholly received into the bore and allow the piston to move in the second direction towards its unlock configuration in response to a subsequent event of the pressure sequence.

    Apparatus and Methods for Use in Wellbore Packing
    3.
    发明申请
    Apparatus and Methods for Use in Wellbore Packing 审中-公开

    公开(公告)号：US20180073324A1

    公开(公告)日：2018-03-15

    申请号：US15701591

    申请日：2017-09-12

    Applicant: Weatherford U.K. Limited

    Inventor： Stephen Reid

    IPC: E21B33/128 ,  E21B23/06 ,  E21B33/126

    CPC classification number: E21B33/128 ,  E21B23/06 ,  E21B33/1208 ,  E21B33/126 ,  E21B43/04

    Abstract: An apparatus for use in a well borehole packing operation takes the form of a downhole packer and comprises a body and a seal member. In use, the apparatus is run into a borehole as part of a downhole completion assembly. On reaching the desired location, the apparatus is activated to urge the seal member into sealing engagement with the borehole, and thereby isolate an annular region between the apparatus and the borehole. A conduit is disposed within the body and is offset from a central longitudinal axis of the apparatus, the conduit configured to transport a borehole packing material, such as gravel slurry, through the apparatus.

    Downhole anchor
    7.
    发明授权
    Downhole anchor 有权

    公开(公告)号：US11802454B2

    公开(公告)日：2023-10-31

    申请号：US17106797

    申请日：2020-11-30

    Applicant: Weatherford U.K. Limited

    Inventor： Philip C G Egleton ,  Stephen Reid

    IPC: E21B23/01 ,  E21B23/04

    CPC classification number: E21B23/01 ,  E21B23/04

    Abstract: An anchoring apparatus for use in a wellbore, comprises at least one movable wall engaging member for engaging a wall of a wellbore, wherein the at least one movable wall engaging member is movable from a retracted position to an expanded position to engage the wall, and from the expanded position to a retracted position to disengage the wall. Provision of one or more wall engaging members being movable from an expanded position to a retracted position allows the anchoring apparatus to be retrieved from the wellbore, and in particular, from an open hole.

    Pressure operated apparatus and method
    8.
    发明授权
    Pressure operated apparatus and method 有权

    公开(公告)号：US11408251B2

    公开(公告)日：2022-08-09

    申请号：US16907949

    申请日：2020-06-22

    Applicant: Weatherford U.K. Limited

    Inventor： Stephen Reid ,  Ian Jaffrey

    IPC: E21B34/10 ,  E21B23/04 ,  E21B34/08

    Abstract: A downhole apparatus comprises a piston mounted within a bore and being reconfigurable from a lock configuration to an unlock configuration in response to a pressure sequence applied within the bore. When the piston is in its lock configuration, a lock is supported by the piston such that the lock partially extends into the bore and engages a lock profile of the piston to restrict movement of the piston in a first direction towards its unlock configuration. In response to a first event of the pressure sequence, the piston is moveable in a second direction to desupport the lock and permit the lock to be wholly received into the bore and allow the piston to move in the second direction towards its unlock configuration in response to a subsequent event of the pressure sequence.

    Downhole fluid control apparatus
    9.
    发明授权
    Downhole fluid control apparatus 有权

    公开(公告)号：US11261700B2

    公开(公告)日：2022-03-01

    申请号：US16621055

    申请日：2018-05-17

    Applicant: Weatherford U.K. Limited

    Inventor： Stephen Reid

    IPC: E21B34/10 ,  E21B34/14

    Abstract: A downhole fluid control apparatus comprises first and second conduits for providing communication between a pressure source and a downhole device, and a valve provided within a housing and configurable between a first configuration in which the first and second conduits are in pressure communication via the valve, and a second configuration in which the first and second conduits are isolated from each other. The apparatus further comprises an actuator for operating the valve. The actuator is in pressure communication with the first and second conduits and with an ambient region external of the apparatus such that when the pressure within each of the first and second conduits is lower than the ambient pressure the valve is configured in its first configuration, and when the pressure within at least one of the first and second conduits exceeds the ambient pressure the valve is configured in its second configuration.

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