Switch device with non-addressable scheme for wellbore operations

    公开(公告)号:US11891891B2

    公开(公告)日:2024-02-06

    申请号:US17443701

    申请日:2021-07-27

    Inventor: Roger Archibald

    CPC classification number: E21B47/13 E21B43/11857

    Abstract: A non-addressable switch device that is part of a chain of switch devices in a gun string, the non-addressable switch device including a first switch configured to make an electrical connection between an electrical line and another non-addressable switch device of the chain of switch devices; a second switch configured to make an electrical connection between a detonator and the electrical line; and a processor PA connected to the first and second switches and configured to close and open the first and second switches. The processor PA is configured to not use a digital address, and the processor PA is configured to perform one of plural functions based on a corresponding pulse received along the electrical line.

    CURRENT FEED-THROUGH WIRELINE RELEASE TOOL AND METHOD

    公开(公告)号:US20220268562A1

    公开(公告)日:2022-08-25

    申请号:US17740952

    申请日:2022-05-10

    Abstract: A wireline release tool for downhole intervention, the tool including a housing having an electrical input and an electrical output; a pass-through switch located inside the housing and electrically connected between the electrical input and the electrical output; and a current limiter device located inside the housing and electrically connected between the electrical input and the electrical output. The pass-through switch is connected in parallel to the current limiter device, between the electrical input and the electrical output

    Convertible and addressable switch assembly for wellbore operations

    公开(公告)号:US11333009B2

    公开(公告)日:2022-05-17

    申请号:US17507909

    申请日:2021-10-22

    Abstract: A convertible and addressable switch assembly includes an interface (I/O) configured to connect to a controller along a telemetry system; and a processor connected to the interface (I/O). The processor is configured to receive a command from the controller, along the telemetry system, to change a first value of a mode status variable to a desired second value, wherein the first value is associated with a first operating mode of the switch assembly and the second value is associated with a second operating mode, which is different from the first operating mode; change the first value to the second value within the switch assembly; and store in a non-volatile memory, at the switch assembly, the second value of the mode status variable.

    Micro-controller-based switch assembly for wellbore systems and method

    公开(公告)号:US10914146B2

    公开(公告)日:2021-02-09

    申请号:US16014125

    申请日:2018-06-21

    Abstract: A method for firing a detonator in a chain of switch assemblies includes a step of lowering the chain of switch assemblies into a wellbore; a step of powering-up a switch assembly of the chain of switch assemblies; a step of independently entering through a set of states during which the switch assembly interacts with a downstream switch assembly and determines a status of one or more elements associated with the switch assembly; and a step of firing a detonator electrically connected to the switch assembly or entering a sleeping state.

    Convertible and addressable switch assembly for wellbore operations

    公开(公告)号:US11542793B2

    公开(公告)日:2023-01-03

    申请号:US17736629

    申请日:2022-05-04

    Abstract: A convertible and addressable switch assembly incudes an interface (I/O) configured to connect to a controller along a telemetry system; and a processor connected to the interface (I/O). The processor is configured to receive a command from the controller, along the telemetry system, to change a first value of a mode status variable to a desired second value, wherein the first value is associated with a first operating mode of the switch assembly and the second value is associated with a second operating mode, which is different from the first operating mode; change the first value to the second value within the switch assembly; and store in a non-volatile memory, at the switch assembly, the second value of the mode status variable.

    Current feed-through wireline release tool and method

    公开(公告)号:US11359898B2

    公开(公告)日:2022-06-14

    申请号:US16194580

    申请日:2018-11-19

    Abstract: A wireline release tool for downhole intervention, the tool including a housing having an electrical input and an electrical output; a pass-through switch located inside the housing and electrically connected between the electrical input and the electrical output; and a circuit limiter device located inside the housing and electrically connected between the electrical input and the electrical output. The pass-through switch is connected in parallel to the circuit limiter device, between the electrical input and the electrical output.

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