[go: up one dir, main page]

CA2119633A1 - Flow Trim for Choke - Google Patents

Flow Trim for Choke

Info

Publication number
CA2119633A1
CA2119633A1 CA2119633A CA2119633A CA2119633A1 CA 2119633 A1 CA2119633 A1 CA 2119633A1 CA 2119633 A CA2119633 A CA 2119633A CA 2119633 A CA2119633 A CA 2119633A CA 2119633 A1 CA2119633 A1 CA 2119633A1
Authority
CA
Canada
Prior art keywords
choke
ports
flow trim
flow
tubular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2119633A
Other languages
French (fr)
Other versions
CA2119633C (en
Inventor
Richard Cove
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Master Flo Valve Inc
Original Assignee
Master Flo Valve Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Master Flo Valve Inc filed Critical Master Flo Valve Inc
Priority to CA002119633A priority Critical patent/CA2119633C/en
Publication of CA2119633A1 publication Critical patent/CA2119633A1/en
Application granted granted Critical
Publication of CA2119633C publication Critical patent/CA2119633C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/02—Valve arrangements for boreholes or wells in well heads
    • E21B34/025—Chokes or valves in wellheads and sub-sea wellheads for variably regulating fluid flow

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Pipe Accessories (AREA)
  • Details Of Valves (AREA)

Abstract

The flow trim has inner and outer, spaced apart, tubular cylindrical, coextensive, ported walls which project across the inlet of the choke. A tubular throttling collar may be advanced longitudinally through the annular space between the ported walls, to vary the flow area of the ports. The arrangement enables staging of the pressure drop in increments through the ports of the choke. This reduces cavitation.
CA002119633A 1994-03-18 1994-03-18 Flow trim for choke Expired - Lifetime CA2119633C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002119633A CA2119633C (en) 1994-03-18 1994-03-18 Flow trim for choke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002119633A CA2119633C (en) 1994-03-18 1994-03-18 Flow trim for choke

Publications (2)

Publication Number Publication Date
CA2119633A1 true CA2119633A1 (en) 1995-09-19
CA2119633C CA2119633C (en) 1997-11-18

Family

ID=4153219

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002119633A Expired - Lifetime CA2119633C (en) 1994-03-18 1994-03-18 Flow trim for choke

Country Status (1)

Country Link
CA (1) CA2119633C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2383424A3 (en) * 2007-09-26 2014-03-12 Cameron International Corporation Choke assembly
CN116006701A (en) * 2023-02-21 2023-04-25 四川圣诺油气工程技术服务有限公司 Cage sleeve type throttle valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2383424A3 (en) * 2007-09-26 2014-03-12 Cameron International Corporation Choke assembly
CN116006701A (en) * 2023-02-21 2023-04-25 四川圣诺油气工程技术服务有限公司 Cage sleeve type throttle valve

Also Published As

Publication number Publication date
CA2119633C (en) 1997-11-18

Similar Documents

Publication Publication Date Title
KR960006186B1 (en) Expansion hose to reduce pressure pulsation
CA2572596A1 (en) Flow control apparatus for use in a wellbore
KR920700982A (en) Expansion hose to reduce pressure pulsation
EP0857271B1 (en) Flow control valve with non-plugging multi-stage valve trim
WO2002048533A1 (en) Stirling engine, and stirling refrigerator
CA2243793A1 (en) Flow control apparatus for use in a subterranean well and associated methods
WO2002090831A8 (en) Device and method for injecting a liquid fuel in an air flow for a combustion chamber
KR940018592A (en) Rotary valve device
WO2003016723A3 (en) Piston-type accumulator
CA2438379A1 (en) Device for axially conveying body fluids
CA2279557A1 (en) Annular column for cryogenic rectification
EP0651189A3 (en) Fluid flow control valve.
WO2001098691A3 (en) Bypass valve with locking means
EP0675290A3 (en) Axial flow compressor.
WO2003038321A3 (en) Roll diaphragm control valve
TW348074B (en) Throttle valve and shower head with the same
US4762146A (en) Flow control valve
CA2119633A1 (en) Flow Trim for Choke
EP0534649B1 (en) Gas compressor having a variable-volume clearance pocket
CA2160044A1 (en) Hollow Annular Drill Bit with Hollow Cylindrical Carrier Member
CA2011009A1 (en) Line pressure regulator
US5727587A (en) Mixer control valve
NZ328507A (en) Fluid mixer, fluids sprayed from annular chambers into tube through radially and transversly inclined passages
CA2272288A1 (en) Method and sealing valve unit for controlling fluid flow through a passage
WO1998019085A3 (en) Valve block and associated heating element

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20140318