Cameron International Corporation

Onesubsea IP UK Limited

Other

Cooper Cameron Corporation

Onesubsea LLC

Biester, Klaus

Kunow, Peter

Peter Kunow

Klaus Biester

Norbert Lenz

Volker Zabe

Steffen Gebauer

Martin Trog

Volker Phielipeit-Spiess

Aleksander Pawel Cywinski

Aleksander Cywinski

The invention relates to a blowout preventer stack having at least one blowout preventer, at least one kinetic energy storage device, at least one hydraulic pump, and at least one hydraulic actuator which is disposed outside the kinetic energy storage device and is connected to the hydraulic pump via a hydraulic line and is mechanically connected to the blowout preventer, wherein the kinetic energy storage device is coupled, or couplable, to the hydraulic pump and the hydraulic pump may be driven by the kinetic energy stored in the kinetic energy storage device in such a manner that in case of need the hydraulic pump will pump hydraulic fluid to the hydraulic actuator and thus actuate the blowout preventer.

Blowout preventer stack

A communication distribution unit, containing at least one power switch, said communication distribution unit comprising for an at least one consumer a power switch () based on a semiconductor design to switch on and off output lines () for the at least one consumer and the power switch () comprises at least one switching module ().

Communication distribution unit containing at least one power switch

The invention relates to a blowout preventer stack comprising blowout preventer stack components. A part of the blowout preventer stack components has a blowout preventer with an electric blowout preventer drive means for operating the blowout preventer. The energy necessary for operating the blowout preventer is provided by kinetic energy storage devices. The kinetic energy storage devices are flywheel energy storage devices, which serve as motor-generator-combination and store, provide and receive kinetic energy and exchange it into electric energy. A steam turbine arrangement and further emergency energy supply and emergency control systems serving as emergency energy supply system are connected to the blowout preventer stack and can be operated parallel to energy supply and control systems. This facilitates a multi-redundant energy supply and control system with upmost effectiveness as to fail-safety of the blowout preventer stack.

Blowout preventer stack and supply system

An arrangement system composed of a plurality of electrical/electronic components particularly of a voltage converter device of a power supply system for use in oil/natural gas production composed of at least one support member that is provided on at least one side with a surrounded accommodating recess, a circuit carrier which is arranged in the accommodating recess and electrically connected to the components, and a holding member fixing the circuit carrier and/or the components in the accommodating recess. An insulating material is arranged at least in part between the circuit carrier and/or components and the support member. Such an arrangement system permits an adequate electrical insulation of the corresponding components and optionally also of the circuit carrier in relation to the support member together with an adequately high heat conduction. At the same time an arrangement system for components is provided that is mechanically stable and permits a good electrical insulation of the components with heat transfer to the outside with respect to the arrangement system.

Arrangement system

A system supplies power from an AC voltage source to an electrical device. The system includes a plurality of AC/DC voltage converters having inputs connected to the AC voltage source and outputs connected to an electrical conductor. The system also includes a plurality of DC voltage converters, each having an input side connected to the electrical conductor and an output side connected to the electrical device. A converted DC or AC voltage is supplied to the electrical device. The system also includes a data coupling device coupled to the electrical conductor. The data coupling device allows communication with the electrical device via the electrical conductor using signals associated with a first frequency range while power is supplied to the electrical device via the electrical conductor. The system further includes clocking frequencies associated with one or more of the AC/DC converters being phase shifted with respect to each other to shift clocking noise from the first frequency range to a second frequency range and clocking frequencies associated with one or more of the DC voltage converters being phase shifted with respect to each other to shift clocking noise from the first frequency range to the second frequency range.

Electric control and supply system

An actuating device for displacing a control device, such as a gate valve or other control mechanism, in particular for use in oil or gas production systems, includes a motor-gear unit and a threaded spindle drive, which is operable by said motor-gear unit. The threaded spindle drive includes at least a threaded spindle and a screw nut. The threaded spindle is displaceable in an essentially axial-direction so as to displace the control device between an advance position and a retracted position. The threaded spindle drive further includes a position holding means holding the attained position of the threaded spindle. The position holding means is directly connected to a motor shaft of the motor-gear unit so as to apply a holding torque to said motor shaft.

Actuating device and method of operating an actuating device

A power supply system, particularly to be used in maritime oil/natural gas production includes at least one data transfer/voltage conversion unit arranged above sea level and one electrical means such as a choke, gate valve, production tree, power control/communication unit and the like arranged below sea level, which are electrically connected via a cable connection at least for power supply. To improve such a power supply system in a manner that this system has a simple structure and each data transfer/voltage conversion unit can also provide higher powers over a predetermined period of time or during continuous operation, a plurality of data transfer/voltage conversion units are arranged modularly, and one additional power supply module can be connected thereto to increase the power supply, and the electrical power, respectively.

Power supply system

An electric motor, particularly for an actuating device for displacing a control device, such as a valve, a gate valve, a blow-out preventer or the like, for use in oil or gas production includes a stator and a rotor assigned to a motor shaft, and a position holding device for exerting a holding torque on the motor shaft. To improve an electric motor of this type such that said motor is of a compact structure, includes less additional parts for a corresponding position holding device and, particularly in case of failure of an external power supply, reliably prevents a situation where the motor shaft is moved out of the attained position upon corresponding pressure application e.g. by the control device, the position holding device comprises a plurality of permanent magnets, the permanent magnets being arranged in radial direction relative to the rotor and the motor shaft, respectively.

Electric motor and position holding device for such an electric motor

A power and signal distribution system comprises a converter unit connected to a plurality of control units. The converter unit and the control units are arranged in areas difficult to access, for instance on the sea bed. The converter unit is connected to a remote monitoring and supplying device via at least one cable connection. Each control unit has assigned thereto at least one production apparatus for crude oil or natural gas corresponding gate valves, chokes, biops, actuators. In some embodiments, the power and signal distribution system the converter unit comprises a data separation device and a voltage converter. The converted voltage from the voltage converter is transmitted together with data/signals from the converter unit to at least one of the control units.

Power and signal distribution system

In at least some embodiments, an electrically controlled subsea production system includes a subsea electrical distributor that receives a high direct current (DC) voltage. The electrical distributor converts the high DC voltage to a lower DC voltage. The electrically controlled subsea production system also includes a plurality of subsea trees coupled to the subsea electrical distributor, wherein valves of the subsea trees selectively operate based on the lower DC voltage.

A universal power supply system is used for at least one electric consumer. The supply system comprises at least one AC source and a cable connection connecting said AC source to said electric consumer. The AC source has associated therewith an AC/DC converter for converting the AC voltage into DC voltage. The DC voltage generated in this way is adapted to be transmitted to the electric consumer via the cable connection. To improve such a universal power supply in such a way that it is possible to provide a high and stable voltage without any additional components (such as additional heat dissipation components), the AC/DC converter comprises a plurality of AC/DC converter components which, on the input side thereof, are connected in parallel with the AC source and which, on the output side thereof are connected serially to the electric consumer.

Universal power supply system

A valve control device, in particular for control pods or similar equipment used in the mining and/or production of mineral oil/natural gas, comprises a valve housing in which hole or boring sections are arranged, and a valve slide movable relative to the hole sections, with at least a first and a second flow hole for the alternative connection of a feed line from a fluid pressure hose with at least one actuator or of the actuator to return line for leading the fluid away, wherein in each case one of the connections is made and the other is interrupted. To improve such a valve control device in that with only slight and economical constructional modifications with retention of all the advantages of known valve control devices, a substantial reduction in the leakage flow is facilitated or even almost completely suppressed, at least first and second valve elements which in the closed position can be pressed onto a valve seat formed especially at a hole section are laterally assigned to the flow holes, wherein in the connection position of the first flow hole the second valve element is in the closed position and in the connecting position of the second flow hole the first valve element is in the closed position each pressed onto the respective assigned valve seat in its closed position.

Growing community of inventors

Berlin, Germany

Peter Kunow