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.

    THREE-WAY FLOW SUB FOR CONTINUOUS CIRCULATION

    公开(公告)号:CA2848409C

    公开(公告)日:2019-11-05

    申请号:CA2848409

    申请日:2012-09-20

    Abstract: A flow sub for use with a drill string includes: a tubular housing having a longitudinal bore formed therethrough and a flow port formed through a wall thereof; a bore valve operable between an open position and a closed position, wherein the bore valve allows free passage through the bore in the open position and isolates an upper portion of the bore from a lower portion of the bore in the closed position; and a sleeve disposed in the housing and movable between an open position where the flow port is exposed to the bore and a closed position where a wall of the sleeve is disposed between the flow port and the bore; and a bore valve actuator operably coupling the sleeve and the bore valve such that opening the sleeve closes the bore valve and closing the sleeve opens the bore valve.

    CONTINUOUS FLOW SYSTEM FOR DRILLING OIL AND GAS WELLS

    公开(公告)号:CA2881891C

    公开(公告)日:2018-06-19

    申请号:CA2881891

    申请日:2015-02-12

    Abstract: A flow sub for use with a drill string includes a tubular housing having a longitudinal bore therethrough and a flow port through a wall thereof and a ball. The ball is disposed in the housing above the flow port, has a bore therethrough, and is rotatable relative to the housing between an open position where the ball bore is aligned with the housing bore and a closed position where a wall of the ball blocks the housing bore. The flow sub further includes a seat disposed in the housing above the ball for sealing against the ball wall in the closed position and a sleeve disposed in the housing and movable between an open position where the flow port is exposed to the housing bore and a closed position where a wall of the sleeve is disposed between the flow port and the housing bore.

    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.

    Subconjunto de fluxo para uso com uma coluna de perfuração, sistema de fluxo contínuo e método para a perfuração de um poço

    公开(公告)号:BR102015003617B1

    公开(公告)日:2022-05-17

    申请号:BR102015003617

    申请日:2015-02-20

    Abstract: subconjunto de fluxo para uso com uma coluna de perfuração, sistema de fluxo contínuo, método para a perfuração de um poço de exploração e suporte de ferramentas metálico a presente invenção refere-se a um subconjunto de fluxo para uso com uma coluna de perfuração o qual inclui um alojamento tubular tendo uma abertura longitudinal através do mesmo, um portal de fluxo através de uma parede do mesmo e uma esfera. a esfera está disposta no alojamento acima do portal de fluxo, tem uma abertura através da mesma e é rotativa com relação ao alojamento entre uma posição aberta na qual a abertura da esfera está alinhada com a abertura do alojamento e uma posição fechada na qual uma parede da esfera bloqueia a abertura do alojamento. adicionalmente, o subconjunto de fluxo inclui uma sede disposta no alojamento acima da esfera para vedação contra a parede da esfera na posição fechada e uma manga disposta no alojamento e móvel entre uma posição aberta na qual o portal de fluxo é exposto aa abertura do alojamento e uma posição fechada na qual uma parede da manga está disposta entre o portal de fluxo e a abertura do alojamento.

    Subconjunto de fluxo para uso com uma coluna de perfuração, sistema de fluxo contínuo e método para a perfuração de um poço

    公开(公告)号:BR102015003617B8

    公开(公告)日:2022-06-07

    申请号:BR102015003617

    申请日:2015-02-20

    Abstract: subconjunto de fluxo para uso com uma coluna de perfuração, sistema de fluxo contínuo, método para a perfuração de um poço de exploração e suporte de ferramentas metálico a presente invenção refere-se a um subconjunto de fluxo para uso com uma coluna de perfuração o qual inclui um alojamento tubular tendo uma abertura longitudinal através do mesmo, um portal de fluxo através de uma parede do mesmo e uma esfera. a esfera está disposta no alojamento acima do portal de fluxo, tem uma abertura através da mesma e é rotativa com relação ao alojamento entre uma posição aberta na qual a abertura da esfera está alinhada com a abertura do alojamento e uma posição fechada na qual uma parede da esfera bloqueia a abertura do alojamento. adicionalmente, o subconjunto de fluxo inclui uma sede disposta no alojamento acima da esfera para vedação contra a parede da esfera na posição fechada e uma manga disposta no alojamento e móvel entre uma posição aberta na qual o portal de fluxo é exposto aa abertura do alojamento e uma posição fechada na qual uma parede da manga está disposta entre o portal de fluxo e a abertura do alojamento.

    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.

    DOWNHOLE DEPLOYMENT VALVES
    10.
    发明专利

    公开(公告)号:CA2744842C

    公开(公告)日:2017-02-07

    申请号:CA2744842

    申请日:2008-03-31

    Abstract: Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV.

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