Dampening the actuation speed of a downhole tool

    公开(公告)号:US11891866B2

    公开(公告)日:2024-02-06

    申请号:US17374088

    申请日:2021-07-13

    IPC分类号: E21B23/00 E21B34/06 E21B41/00

    CPC分类号: E21B23/00 E21B34/06 E21B41/00

    摘要: An actuator of a downhole tool used in oil and gas exploration and production operations is operable to actuate a first implement in a first direction. A biasing device of the downhole tool is operable to actuate the first implement in a second direction, opposite the first direction. A dampener of the downhole tool is operable to slow an actuation speed of the first implement in the first direction, the second direction, or both. Actuating the first implement in the first direction also actuates a second implement of a flow control device (“FCD”) of the downhole tool, to which the first implement is connected, in the first direction, placing the FCD in a first (e.g., open) configuration. Actuating the first implement in the second direction also actuates the second implement of the FCD in the second direction, placing the FCD in a second (e.g., closed) configuration.

    SLIDING SLEEVE HAVING A FLOW INHIBITOR FOR WELL EQUALIZATION

    公开(公告)号:US20190309601A1

    公开(公告)日:2019-10-10

    申请号:US15743426

    申请日:2016-12-30

    IPC分类号: E21B34/12

    摘要: This disclosure provides a sliding sleeve apparatus that has a flow inhibitor that slows the fluid flow between the interior passageway of the sliding sleeve and the well annulus to allow pressure equalization between the interior passageway of the sliding sleeve and the well annulus to occur prior to placing the sliding sleeve in a fully open position. The inhibited or restricted fluid flow reduces wear on the seals and other components of the sliding sleeve, which extends the operative life of the tool.

    Dynamically Engageable Electromechanical Brake

    公开(公告)号:US20240218908A1

    公开(公告)日:2024-07-04

    申请号:US18513820

    申请日:2023-11-20

    IPC分类号: F16D63/00 E21B34/06 F16D65/18

    摘要: Disclosed herein are systems and methods including an electromechanical brake used downhole to impart dynamic or static braking capabilities while absorbing or otherwise reducing shock loads. The electromechanical brake may be used for a downhole electromechanical linear actuator to control a valve for the production of subterranean fluid. In some examples, it may be desirable for an electromechanical linear actuator to maintain a retracted position during certain safety and/or maintenance operations. The electromechanical brake includes a brake housing, a first armature rotatably disposed in the brake housing, a second armature rotatably disposed in the brake housing for rotation by a motor, an electrical coil energizable to urge the second armature into axial engagement with the first armature, and a rotational spring for biasing the first armature to a neutral rotational position relative to the brake housing while allowing a limited rotation of the first armature relative to the brake housing.