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    21.
    发明专利
    未知

    公开(公告)号：NO317816B1

    公开(公告)日：2004-12-13

    申请号：NO20002396

    申请日：2000-05-08

    Applicant: WEATHERFORD LAMB

    Inventor： GIROUX RICHARD LEE

    IPC: E21B21/10 ,  E21B33/05 ,  E21B33/16 ,  E21B34/06

    Abstract: A new method for introducing wellbore cement into a wellbore shoe joint has been invented, the shoe joint having a hollow tubular body, the shoe joint containing an amount of wellbore fluid, the shoe joint disposed in a wellbore cementing system between a float shoe, guide shoe, or other flow apparatus beneath the shoe joint, and a hollow tubular member above the shoe joint, the hollow tubular member being a lower part of a wellbore tubular string of a plurality of tubular members (e.g., casing) extending from an earth surface down into a wellbore, the method including moving a wellbore wiper plug into the hollow tubular body of the shoe joint, moving the plug within the shoe joint to push wellbore fluid from the shoe joint and, in one aspect, debris in the fluid, the fluid flowing to the float shoe, guide shoe or other flow apparatus, flowing wellbore cement into the hollow tubular body of the shoe joint.

    24.
    发明专利
    未知

    公开(公告)号：NO20024410D0

    公开(公告)日：2002-09-16

    申请号：NO20024410

    申请日：2002-09-16

    Applicant: WEATHERFORD LAMB

    Inventor： GIROUX RICHARD LEE

    IPC: E21B34/06 ,  E21B

    Abstract: A downhole differential flow control valve is provided that utilizes a differential pressure area having one pressure area on which the wellbore pressure acts and a second area different from the first area on which pressure in the tubing acts. The differential area reduces the load in which the spring is required to exert a closing force in the valve. Thus, a coil spring can be used to improve the closing speeds of the valve.

    DIFFERENTIAL FLOW CONTROL VALVE
    25.
    发明专利
    DIFFERENTIAL FLOW CONTROL VALVE 未知

    公开(公告)号：CA2406249A1

    公开(公告)日：2001-10-25

    申请号：CA2406249

    申请日：2001-04-12

    Applicant: WEATHERFORD LAMB

    Inventor： GIROUX RICHARD LEE

    IPC: E21B34/06

    Abstract: A downhole differential flow control valve (50) is provided that utilizes a differential pressure area having one pressure area on which the wellbore pressure (Pw) acts and a second area different from the first area on which pressure (Pt) in the tubing acts. The differential area reduces the load in which a spring (66) is required to exert a closing force in the valve. Thus, a coil spring can be used to improve the closing speeds of the valve.

    Cement device release mechanism
    26.
    发明专利
    Cement device release mechanism 未知

    公开(公告)号：GB2528592A

    公开(公告)日：2016-01-27

    申请号：GB201516365

    申请日：2014-03-07

    Applicant: WEATHERFORD LAMB

    Inventor： GIROUX RICHARD LEE ,  WOOD KEVIN

    IPC: E21B33/05 ,  F16H35/00

    Abstract: A holding device having release mechanisms for securing and releasing one or more ball, dart, and/or plug members from the holding device into a tubular string disposed in a wellbore. The release mechanisms may include a planetary gear arrangement for extending and retracting a plunger member disposed below the ball, dart, and/or plug members. The release mechanisms may include a bevel gear arrangement for extending and retracting a finger support member disposed below the ball, dart, and/or plug members. The release mechanisms may include a pivotable, spring type arrangement for extending and retracting a finger support member disposed below the ball, dart, and/or plug members.

    sistema de liberação de tampão, conjunto de instalação de revestimento e método para suspender uma coluna tubular interna a partir de uma coluna tubular externa
    27.
    发明专利
    sistema de liberação de tampão, conjunto de instalação de revestimento e método para suspender uma coluna tubular interna a partir de uma coluna tubular externa 未知

    公开(公告)号：BR102014028648A2

    公开(公告)日：2015-09-08

    申请号：BR102014028648

    申请日：2014-11-17

    Applicant: WEATHERFORD LAMB

    Inventor： GIROUX RICHARD LEE ,  CAMPBELL ROBIN L ,  TURLEY ROCKY A

    IPC: E21B23/00

    Abstract: sistema de liberação de tampão, conjunto de instalação de revestimento e método para suspender uma coluna tubular interna a partir de uma coluna tubular externa. a presente invenção refere-se a um sistema de liberação de tampão para cimentar uma coluna tubular em um orifício de poço inclui um tampão de ressalto, um alojamento tubular, um membro de travamento para conectar de forma liberada o tampão de ressalto ao alojamento. o membro de travamento inclui: um prendedor engajado com um dos tampãos de ressalto e com o alojamento; uma trava móvel entre uma posição travada e uma posição destravada, a trava mantendo o prendedor engajado na posição travada; e um atuador conectado a trava e operável para pelo menos mover a trava a partir da posição travada para a posição destravada. o sistema de liberação de tampão adicionalmente inclui um conjunto eletrônico disposto no alojamento e em comunicação com o atuador para operar o atuador em resposta ao recimento de um sinal de comando.

    EXPANSION SYSTEM FOR AN EXPANDABLE TUBULAR ASSEMBLY
    28.
    发明专利
    EXPANSION SYSTEM FOR AN EXPANDABLE TUBULAR ASSEMBLY 未知

    公开(公告)号：CA2833882A1

    公开(公告)日：2012-11-01

    申请号：CA2833882

    申请日：2012-04-27

    Applicant: WEATHERFORD LAMB

    Inventor： GIROUX RICHARD LEE ,  GANDIKOTA VARADARAJU ,  ABEDRABBO NADER E ,  KENDZIORA LARRY A ,  RING LEV

    IPC: E21B23/00 ,  E21B19/00 ,  E21B43/10

    Abstract: The present invention generally relates to an apparatus and method for expanding an expandable tubular assembly in a borehole. In one aspect, a system for expanding a tubular having an anchor portion in a borehole is provided. The system includes a running tool configured to position the tubular in the borehole. The running tool including a first expander configured to activate the anchor portion by expanding the tubular to a first diameter. The system further includes a second expander configured to expand the tubular to a second larger diameter, wherein the second expander is movable between a retracted position and an expanded position. In another aspect, a method of expanding a tubular having an anchor portion in a borehole is provided.

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