Blowout preventer stack and supply system
First Claim
1. A blowout preventer stack, comprising a blowout preventer stack component with a blowout preventer and an electric blowout preventer drive means for operating the blowout preventer, said electric blowout preventer drive means having a kinetic energy storage device comprising a centrifugal mass, said electric blowout preventer drive means further having an electric motor for rotating the centrifugal mass, wherein energy for operating the blowout preventer is provided by the kinetic energy storage device, and wherein the blowout preventer drive means can operate the blowout preventer directly by kinetic energy from the kinetic energy storage device.
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Abstract
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.
26 Citations
17 Claims
- 1. A blowout preventer stack, comprising a blowout preventer stack component with a blowout preventer and an electric blowout preventer drive means for operating the blowout preventer, said electric blowout preventer drive means having a kinetic energy storage device comprising a centrifugal mass, said electric blowout preventer drive means further having an electric motor for rotating the centrifugal mass, wherein energy for operating the blowout preventer is provided by the kinetic energy storage device, and wherein the blowout preventer drive means can operate the blowout preventer directly by kinetic energy from the kinetic energy storage device.
- 14. A blowout preventer stack, comprising a blowout preventer stack component with a blowout preventer and an electric blowout preventer drive means for operating the blowout preventer, said electric blowout preventer drive means having a kinetic energy storage device comprising a centrifugal mass, said electric blowout preventer drive means further having an electric motor for rotating the centrifugal mass, wherein energy for operating the blowout preventer is provided by the kinetic energy storage device, and wherein the blowout preventer drive means can operate the blowout preventer directly by kinetic energy from the kinetic energy storage device, and wherein the centrifugal mass comprising a flywheel.
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17. A blowout preventer stack, comprising a blowout preventer stack component with a blowout preventer and an electric blowout preventer drive means for operating the blowout preventer, said electric blowout preventer drive means having a kinetic energy storage device comprising a centrifugal mass, said electric blowout preventer drive means further having an electric motor for rotating the centrifugal mass, wherein energy for operating the blowout preventer is provided by the kinetic energy storage device, and wherein the blowout preventer drive means can operate the blowout preventer directly by kinetic energy from the kinetic energy storage device, wherein the blowout preventer stack is also operatively connected to at least one steam turbine arrangement, and wherein a steam accumulator of the steam turbine arrangement is adapted to continuously generate and/or receive steam, which is provided as energy for operating at least one blowout preventer of the blowout preventer stack.
Specification