Cameron International Corporation

Schlumberger Technology Corporation

Gerrit Kroesen

Bruce Boulanger

Andrew Jaffrey

Mac M Kennedy

Suman Katanguri

Harold Daley

Michael Urdiales

Melvyn F Whitby

Ronald Wayne Webb

John Mangan

Omar M Kabir

Vikas Rakhunde

Donald Scott Coonrod

Edmund A Fisher

Robert Small

Daniel Brent Baxter

Mark Andrew Patterson

Thomas Bell

Roger David Boisjolie

John C Etcheverry

Don Coonrod

Katherine Harvey

David Gonzalez

James W Wilkirson

Sean Clarke

An annular blowout preventer includes an annular body including a central bore extending therethrough, a plurality of electric motors disposed circumferentially around the annular body; a packer assembly disposed within the annular body about the central bore; and a plurality of pusher plates disposed in the annular body; each pusher plate configured to radially engage the packer assembly. The packer assembly includes a packer element and a donut that circumferentially surrounds the packer element. The plurality of pusher plates is correspondingly connected to the plurality of electric motors via a connecting rod.

Electric annular blowout preventer with radial compression of packer

A technique facilitates application of increased force in various well applications while limiting the overall time period of the operation by automatically utilizing two modes of operation. In some well applications, the technique automatically applies increased force to facilitate shearing of a tubular product in a timely manner. By way of example, the system may be utilized to rapidly advance rams to the point of contact with the tubular product extending through well equipment, e.g. through a blowout preventer (BOP), and then to automatically shift to a slower advance but higher force mode. The higher force mode facilitates shearing of a variety of tubular products in a variety of well applications.

Automatic thrust activated multi-speed reduction gear and clutch system and method

A technique facilitates reliable operation of a blowout preventer (BOP) system in a wide range of challenging environments. To enable dependable and rapid closing of the internal passageway of the BOP system, an annular closing system is employed. The annular closing system is fully electrically actuated and may comprise a variety of components which cooperate to provide reliable sealing of the internal passageway. Examples of those components comprise a packer which may be compressed inwardly to seal off flow along the interior passage. Additionally, a pusher mechanism is positioned in the annular closing system and is shiftable, e.g. linearly shiftable, such that its motion causes the packer to be compressed in the radially inward direction. At least one electrically operated rotary-to-linear actuator is actuatable to move the pusher mechanism when causing compression of the packer.

Electrically actuated annular system and method for use in blowout preventer

A technique facilitates reliable operation of a blowout preventer (BOP) system in a wide range of challenging environments. To enable dependable and rapid closing of the internal passageway of the BOP system, an electronically actuated annular closing system is employed. The annular closing system may include, for example, a packer combined with a shift mechanism actuatable to compress the packer inwardly so as to seal off the internal passageway. An electronic actuator is coupled with the shift mechanism to enable selective actuation of the shift mechanism to achieve the sealed closing of the internal passageway.

Annular closing system and method for use in blowout preventer

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.

Electrical accumulator system with internal transfer barrier

A technique facilitates reliable operation of a blowout preventer (BOP) system in a wide range of challenging environments. To enable dependable and rapid closing of the internal passageway of the BOP system, an annular closing system is employed. The annular closing system is fully electrically actuated and may comprise a variety of components which cooperate to provide reliable sealing of the internal passageway. Examples of those components comprise a packer which may be compressed inwardly to seal off flow along the interior passage. Additionally, a pusher mechanism is positioned in the annular closing system and is linearly shiftable such that its linear motion causes the packer to be compressed in the radially inward direction. Electrically operated linear actuators are positioned and selectively actuatable to shift the pusher mechanism linearly when causing compression of the packer.

Electric annular system and method for use in blowout preventer

A blowout preventer (BOP) stack module includes a chassis core having a module frame, wherein the chassis core supports one or more submodules each configured to perform a function of a BOP stack, an underwater vehicle coupling hardware coupled to the chassis core, wherein the underwater vehicle coupling hardware couples with an underwater vehicle configured to transport and selectively couple and uncouple the BOP stack module relative to the BOP stack, and a mechanical connector coupled to the chassis core, wherein the mechanical connector couples to a stack frame of the BOP stack, and at least one port coupled to the chassis core, wherein the at least one port is a fluid port, a hydraulic port, a pneumatic port, an electrical port, or a combination thereof, wherein the at least one port couples with a corresponding port of the BOP stack.

Systems and method for retrievable subsea blowout preventer stack modules

A blowout preventer (BOP) stack module includes a chassis core including a module frame, a remotely operated underwater vehicle (ROV) coupling hardware coupled to the chassis core, wherein the ROV coupling hardware couples with an ROV configured to transport and selectively couple and uncouple the BOP stack module relative to a BOP stack, a mechanical connector coupled to the chassis core, wherein the mechanical connector couples to a stack frame of the BOP stack, an electrical BOP component coupled to the chassis core, wherein the electrical BOP component performs one or more electrical BOP functions of the BOP stack, and an electrical connector coupled to the chassis core and the electrical BOP component, wherein the electrical couples to a corresponding electrical connector of the BOP stack or an adjacent BOP stack module.

Systems for retrievable subsea blowout preventer stack modules

An underwater vehicle is configured to transfer a payload between a first location and a second location at a subsea structure. The underwater vehicle includes a payload support configured to support the payload and a buoyancy control system. The buoyancy control system includes at least one of an exchange weight system configured to receive one or more exchange weights when delivering the payload, a floatation system having one or more floatation devices coupled to the payload, or a combination thereof.

Systems and method for buoyancy control of remotely operated underwater vehicle and payload

An annular blowout preventer (BOP) includes a housing comprising a bore extending through the housing, an annular sealing element configured to be displaced inwardly into the housing bore, and an actuating member configured to be actuated radially or perpendicularly with respect to an axis of the annular sealing element to compress the annular sealing element inwardly into the housing bore.

Annual blowout preventer with radial actuating member

A blowout preventer ('BOP') includes a housing comprising a vertical bore extending through the housing and a shear body rotatable with respect to the vertical bore to shear an object located within the vertical bore.

Blowout preventer including shear body

An apparatus includes a blowout preventer housing, a ram movable within the blowout preventer housing. The apparatus further including a rod configured to move the blowout preventer ram and including an outer surface and a piston configured to move the rod. A friction assembly is configured to engage the outer surface of the rod and prevent movement of the rod and the ram when engaged.

Locking apparatus

An apparatus includes a blowout preventer housing comprising a bore extending through the blowout preventer housing and an inflatable element positionable within the blowout preventer housing and comprising an internal cavity. The internal cavity is configured to receive fluid pressure to expand the inflatable element and facilitate forming a seal within the blowout preventer housing.

Blowout preventer with inflatable element

A status assembly to provide visual and electronic indication of the position (open, closed, in-between) of the ram of a ram-type blowout preventer (BOP). The assembly is capable of coupling with a hydraulic motor that can be used to open and close the ram locks. The status assembly includes a rotatable element protruding from the BOP, a gear rotatable by the rotatable element, and an indicator that indicates the rotation position of the rotatable element and thus the linear position of the BOP ram. Some embodiments can also include a sensor that outputs an electronic signal to the system operator and can be incorporated into the main display for the BOP control system. This device is able to give immediate feedback to operators and to indicate whether each ram has achieved its intended travel.

Growing community of inventors

Friendswood, TX, United States of America

Gerrit Kroesen