REDUCED CAVITATION OILFIELD CHOKE
First Claim
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1. A choke with reduced cavitation and/or flashing due to high pressure fluids passing through the choke, comprising:
- a housing having a high pressure inlet port and a low pressure outlet port;
one or more cages positioned within the housing and having one or more inlet ports to receive fluid into the cages and one or more outlet ports to allow fluid to exit the cages, wherein one of the cages comprises a bead cage;
an actuator;
a flow controller coupled to the actuator and configured to at least partially block the inlet ports into at least one of the cages; and
a plurality of beads positioned within the bead cage, such that fluid flows between the bead cage and the plurality of beads and between the beads when passing through the bead cage, and fluid pressure is reduced while fluid passes through the bead cage.
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Abstract
A choke with reduced cavitation and/or flashing due to a high pressure fluids passing through the choke includes a housing having a high pressure inlet port and a low pressure outlet port, and a cage positioned within the housing and having a passage for passing fluid therethrough. A plurality of beads are each positioned in the cage, such that fluid flows between the cage and the beads and between the beads when passing through the cage. Fluid pressure is reduced by the fluid passing through the cage, thereby reducing cavitation.
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Citations
12 Claims
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1. A choke with reduced cavitation and/or flashing due to high pressure fluids passing through the choke, comprising:
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a housing having a high pressure inlet port and a low pressure outlet port; one or more cages positioned within the housing and having one or more inlet ports to receive fluid into the cages and one or more outlet ports to allow fluid to exit the cages, wherein one of the cages comprises a bead cage; an actuator; a flow controller coupled to the actuator and configured to at least partially block the inlet ports into at least one of the cages; and a plurality of beads positioned within the bead cage, such that fluid flows between the bead cage and the plurality of beads and between the beads when passing through the bead cage, and fluid pressure is reduced while fluid passes through the bead cage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12)
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8. The choke of claim 8, wherein the outlet ports of the bead cage are formed in the lid.
Specification