Wiper Barrier Plug Assemblies
    64.
    发明公开

    公开(公告)号:US20240003223A1

    公开(公告)日:2024-01-04

    申请号:US18467150

    申请日:2023-09-14

    CPC classification number: E21B33/16 E21B33/1208 E21B33/08 E21B47/09

    Abstract: A wiper barrier plug assembly can include a wiper plug, an expandable plug, and a trigger device that includes a first housing part, a second housing part, and a mechanical trigger, where the wiper plug, the expandable plug, and the trigger device are mechanically coupled together, where the mechanical trigger is disposed between and maintains a separated position of the first housing part and the second housing part relative to each other when the trigger device is in a default trigger device position, where the mechanical trigger is configured to break when the trigger device converts to an actuated state, where the first housing part and the second housing part, when the trigger device is in the actuated state, are configured to move to a collapsed position relative to each other to operate the expandable plug from a default expandable plug position to an expanded position.

    Obstruction relief in subterranean wellbores

    公开(公告)号:US11851987B2

    公开(公告)日:2023-12-26

    申请号:US17547846

    申请日:2021-12-10

    CPC classification number: E21B34/14 E21B34/063

    Abstract: An obstruction relief tool can include a plurality of walls that includes an inner wall, where the inner wall forms a cavity along a length of the inner wall. The obstruction relief tool can also include a chamber disposed between the plurality of walls, where the chamber has a proximal end and a distal end. The obstruction relief tool can further include an actuation device that is configured to actuate when an obstruction is within the cavity, where the actuation device, when actuated, is configured to open a first aperture in the inner wall that leads to the proximal end of the chamber, where the distal end of the chamber leads to a second aperture in the inner wall, where the first aperture is adjacent to the cavity above the obstruction, and where the second aperture in the inner wall is adjacent to the cavity below the obstruction.

Patent Agency Ranking