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    Accumulator system
    2.
    发明授权
    Accumulator system 有权

    公开(公告)号：US11795978B2

    公开(公告)日：2023-10-24

    申请号：US17820910

    申请日：2022-08-19

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Christopher Nault ,  Matthew David Givens ,  Vikas Rakhunde ,  Stephen McGuire

    IPC: F15B1/24 ,  E21B33/064 ,  E21B33/035 ,  E21B33/06 ,  F15B1/04

    CPC classification number: F15B1/24 ,  E21B33/0355 ,  E21B33/064

    Abstract: An accumulator system includes a chamber configured to receive a first fluid, a piston configured to move within the chamber to pressurize and drive the first fluid out of the chamber, a driving shaft coupled to the piston, a screw adapter coupled to the driving shaft, a plurality of anti-rotation shafts, and an electric actuator configured to couple to the screw adapter and to rotate the screw adapter to axially move the driving shaft. The piston includes a body defining a first aperture and a plurality of counterbores. The driving shaft is coupled to the piston via the first aperture. The piston is configured to slide over the plurality of anti-rotation shafts via the plurality of counterbores.

    COMMUNICATION NETWORKS FOR BOP CONTROL
    5.
    发明申请
    COMMUNICATION NETWORKS FOR BOP CONTROL 有权

    公开(公告)号：US20250122775A1

    公开(公告)日：2025-04-17

    申请号：US18687359

    申请日：2022-09-08

    Applicant: Schlumberger Technology Corporation

    Inventor： Vikas Rakhunde ,  Dinesh Kumar Dhamodaran ,  Limin Chen ,  Nick Krippner ,  Dhinesh Prabhu Nataraja Prabu ,  Matthew Olson

    IPC: E21B33/035 ,  E21B33/064

    Abstract: An apparatus for controlling a subsea blowout preventor (BOP) includes a control system for controlling a subsea BOP of a subsea stack assembly installed over a subsea oil and gas well. The control system includes a first topside control device and a second topside control device, and a first subsea control device and a second subsea control device. The first topside control device, the second topside control device, the first subsea control device, and the second subsea control device are each communicatively connected with the BOP and operable to control operation of the BOP. The first subsea control device is a portion of a first control pod of the subsea stack assembly. The second subsea control device is a portion of a second control pod of the subsea stack assembly. The first topside control device is communicatively connected with the second topside control device via a ring communication network.

    INTEGRATED LINE SYSTEM FOR A MINERAL EXTRACTION SYSTEM
    6.
    发明申请
    INTEGRATED LINE SYSTEM FOR A MINERAL EXTRACTION SYSTEM 有权

    公开(公告)号：US20240368952A1

    公开(公告)日：2024-11-07

    申请号：US18685280

    申请日：2022-08-17

    Applicant: Schlumberger Technology Corporation

    Inventor： Glenn Thore Saebo ,  Vikas Rakhunde ,  Taylor Mozisek ,  Jon Tyler

    IPC: E21B21/08 ,  E21B47/06

    Abstract: A system includes a drilling fluid flow path configured to be selectively utilized with a well control drilling technique during a first drilling operation and a managed pressure drilling (MPD) technique during a second drilling operation. The system includes a first manifold assembly coupled to the drilling fluid flow path, wherein the first manifold assembly includes a drilling choke configured to be utilized with the well control drilling technique and coupled to a set of lines coupled to a blowout preventer coupled to a wellhead. The system includes a second manifold assembly coupled to the drilling fluid flow path, wherein the first manifold assembly includes a MPD choke configured to be utilized with the MPD technique. The system includes a set of lines coupled to one or more components of a wellhead assembly, wherein both the drilling choke and the MPD choke are coupled to the set of lines.

    Electrical accumulator system with internal transfer barrier
    8.
    发明授权
    Electrical accumulator system with internal transfer barrier 有权

    公开(公告)号：US12228005B2

    公开(公告)日：2025-02-18

    申请号：US18715805

    申请日：2023-03-09

    Applicant: Schlumberger Technology Corporation

    Inventor： Vikas Rakhunde ,  Sean Clarke ,  Gerrit Kroesen

    IPC: E21B33/064 ,  E21B33/035 ,  F15B1/04

    Abstract: An accumulator system includes a housing, including a motor housing including an electric motor, a function chamber and an anti-rotating chamber each coupled to the motor housing, a balance chamber, a transfer chamber disposed between the anti-rotating chamber and the balance chamber, a shaft configured to move axially within the function chamber, the anti-rotating chamber, and the transfer chamber, a first piston coupled to a first end of the shaft, a second piston coupled to a second end of the shaft, and third piston configured to separate the transfer chamber from the balance chamber. The electric motor is coupled to and drives the shaft to alternatingly compress working fluid with the first piston in the function chamber to drive the working fluid out of the function chamber, and compress transfer fluid with the second piston in the transfer chamber to drive the transfer fluid out of the transfer chamber.

    Pressure control systems and methods
    9.
    发明授权
    Pressure control systems and methods 有权

    公开(公告)号：US11905785B2

    公开(公告)日：2024-02-20

    申请号：US17754810

    申请日：2020-10-15

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Vikas Rakhunde

    IPC: E21B33/06

    CPC classification number: E21B33/06 ,  E21B2200/01

    Abstract: A system an annular sleeve configured to be positioned in an annular space between a first annular component and a second annular component of a drilling system. The annular sleeve includes a radially-inner annular surface and a radially-outer annular surface. The annular sleeve also includes a first annular seal element coupled to the radially-inner annular surface and configured to seal against the first annular component, a second annular seal element coupled to the radially-outer annular surface and configured to seal against the second annular component, and one or more axially-extending passageways extending from a first end to a second end of the annular sleeve. The annular sleeve is configured to direct a fluid flow through the one or more axially-extending passageways across the annular sleeve.

    Rotating control device system
    10.
    发明授权
    Rotating control device system 有权

    公开(公告)号：US11781398B2

    公开(公告)日：2023-10-10

    申请号：US17525144

    申请日：2021-11-12

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Harold Tenorio ,  Vikas Rakhunde ,  Jon Tyler ,  Matthew Givens

    IPC: E21B33/08 ,  F15B15/14

    CPC classification number: E21B33/085 ,  F15B15/14

    Abstract: A rotating control device (RCD) system includes a housing having a bore, a seal element positioned within the housing, a piston assembly supported within the housing and configured to drive the seal element to seal the bore, and a bearing assembly supported within the housing and configured to enable the seal element to rotate relative to the housing. The bearing assembly includes a first bearing section positioned between the housing and the seal element and a second bearing section positioned between a piston of the piston assembly and the seal element. The piston assembly is configured to selectively actuate the seal element into a first configuration, where the seal element extends into the bore and seals with a tubular therein, and a second configuration, where the seal element extends entirely through the bore and seals the bore without a tubular extending therein.

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