VÁLVULA DE AISLAMIENTO DE FONDO DE POZO BIDIRECCIONAL.

    公开(公告)号:MX386850B

    公开(公告)日:2025-03-19

    申请号:MX2019012156

    申请日:2015-12-18

    Abstract: Una válvula de aislamiento para uso en un pozo incluye: una carcasa tubular, una charnela superior colocada en la carcasa y giratoria con relación a la misma entre una posición abierta y una posición cerrada, un pistón superior que opera para abrir o cerrar la charnela superior; una charnela inferior colocada en la carcasa y giratoria con relación a la misma entre una posición abierta y una posición cerrada; un pistón inferior que opera para abrir la charnela inferior; un paso de abridora en comunicación de fluido con los pistones y un acoplamiento hidráulico de abridora y un paso cerrador en comunicación de fluido con los pistones y un acoplamiento hidráulico del cerrador.

    SIGNAL OPERATED ISOLATION VALVE
    2.
    发明专利

    公开(公告)号:CA2811118C

    公开(公告)日:2017-01-24

    申请号:CA2811118

    申请日:2011-09-20

    Abstract: A method of drilling a wellbore includes drilling the wellbore through a formation by injecting drilling fluid through a drill string and rotating a drill bit. The drill string includes a shifting tool, a receiver in communication with the shifting tool, and the drill bit. The method further includes retrieving the drill string from the wellbore through a casing string until the shifting tool reaches an actuator. The casing string includes an isolation valve in an open position and the actuator. The method further includes sending a wireless instruction signal to the receiver. The shifting tool engages the actuator in response to the receiver receiving the instruction signal. The method further includes operating the actuator using the engaged shifting tool, thereby closing the isolation valve and isolating the formation from an upper portion of the wellbore.

    DIFFERENTIAL PRESSURE INDICATOR FOR DOWNHOLE ISOLATION VALVE

    公开(公告)号:CA2871925C

    公开(公告)日:2016-12-06

    申请号:CA2871925

    申请日:2014-11-20

    Abstract: A differential pressure indicator (DPI) for use with a downhole isolation valve includes a tubular mandrel for assembly as part of a casing string and for receiving a tubular string. The mandrel has a stop shoulder and a piston shoulder. The DPI further includes a tubular housing for assembly as part of the casing string and for receiving the tubular string. The housing is movable relative to the mandrel between an extended position and a retracted position and has a stop shoulder and a piston shoulder. The DPI further includes a hydraulic chamber formed between the piston shoulders and a coupling in communication with the hydraulic chamber and for connection to a sensing line. The housing is movable relative to the mandrel and to the extended position in response to tension exerted on the DPI.

    BIDIRECTIONAL DOWNHOLE ISOLATION VALVE

    公开(公告)号:CA2916019C

    公开(公告)日:2018-02-20

    申请号:CA2916019

    申请日:2014-06-26

    Abstract: An isolation valve for use in a wellbore includes: a tubular housing; an upper flapper disposed in the housing and pivotable relative thereto between an open position and a closed position; an upper piston operable to open or close the upper flapper; a lower flapper disposed in the housing and pivotable relative thereto between an open position and a closed position; a lower piston operable to open the lower flapper; an opener passage in fluid communication with the pistons and an opener hydraulic coupling; and a closer passage in fluid communication with the pistons and a closer hydraulic coupling.

    REMOTELY OPERATED ISOLATION VALVE

    公开(公告)号:CA2811117C

    公开(公告)日:2017-03-07

    申请号:CA2811117

    申请日:2011-09-20

    Abstract: A method of operating an isolation valve in a wellbore includes: deploying a work string into the wellbore through a tubular string disposed in the wellbore. The work string comprises a deployment string, a shifting tool, and a bottomhole assembly (BHA). The tubular string comprises the isolation valve and an actuator. The method further includes rotating the actuator using the shifting tool, thereby opening or closing the isolation valve. The isolation valve isolates a formation from an upper portion of the wellbore in the closed position.

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