Invention Grant
- Patent Title: Reduced cavitation oilfield choke
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Application No.: US14384141Application Date: 2013-03-01
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Publication No.: US09611952B2Publication Date: 2017-04-04
- Inventor: Lane McCaskill
- Applicant: National Oilwell Varco, L.P.
- Applicant Address: US TX Houston
- Assignee: National Oilwell Varco, L.P.
- Current Assignee: National Oilwell Varco, L.P.
- Current Assignee Address: US TX Houston
- Agency: Conley Rose, P.C.
- International Application: PCT/US2013/028694 WO 20130301
- International Announcement: WO2013/138092 WO 20130919
- Main IPC: F16K47/08
- IPC: F16K47/08 ; E21B34/02 ; F16K3/24

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.
Public/Granted literature
- US20150041690A1 REDUCED CAVITATION OILFIELD CHOKE Public/Granted day:2015-02-12
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