Kinetic shear ram for well pressure control apparatus
AssigneeKinetic Pressure Control Ltd.
InventorsBobby James Gallagher, Billy Jack Gallagher
Life of this patent
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Abstract
A blowout preventer has a main body having a through bore. A housing is mounted to the main body and defines a passage connected to and transverse to the through bore. An isolation ring cutter is initially disposed around the through bore and closes the passage to fluid flow. The isolation ring cutter is movable along the passage and has an opening coincident with the through bore. A piston and gate are disposed in the passage spaced apart from the isolation ring cutter. A propellant charge is disposed between the piston and an end.
Claims29
A blowout preventer comprising:
- a main body having a through bore;
- a passage transverse to the through bore;
- a ring cutter disposed in the passage and configured for positioning with an opening on the cutter coincident with the through bore;
- a gate disposed separated and spaced apart from the ring cutter and configured for motion along the passage;
- and
- a charge configured for activation to propel the gate along the passage into contact with the ring cutter to move the cutter across the through bore.
A blowout preventer comprising:
- a main body having a through bore;
- a passage transverse to the through bore;
- a ring cutter disposed in the passage and configured for positioning with an opening on the cutter coincident with the through bore;
- and
- a gate configured for motion along the passage in response to activation of a charge,
- wherein the gate is configured to move along the passage between a position separated and spaced apart from the ring cutter to a position where the gate contacts the ring cutter to move the cutter across the through bore.
A method of operating a blowout preventer having a body with a through bore, comprising:
- actuating a charge to propel a gate along a passage in the body transverse to the through bore,
- wherein the gate is propelled from a position separated and spaced apart from a ring cutter disposed in the passage with an opening on the cutter coincident with the through bore, to a position where the gate contacts the ring cutter;
- and
- allowing the propelled gate to move the ring cutter across the through bore.
Dependencies are inferred from the claim text.