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특허 상세정보

Choke for drilling or production use

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-011/07    F16K-003/24    F16K-047/04   
미국특허분류(USC) 137/625.3; 137/625.37; 251/210
출원번호 US-0383550 (1982-06-01)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Wymore, Max L.
인용정보 피인용 횟수 : 23  인용 특허 : 1

A choke is provided having a stationary tubular flow nozzle with throttling ports formed through its side wall. A movable tubular throttling ring may be moved over the nozzle to restrict or close the ports. The required liquid-tight seal or shut-off is obtained with annular seal surfaces formed on the nozzle and ring but remote from and upstream of the ports, so that erosion of these seal surfaces, by the high velocity streams passing through the ports, is minimized.


1. A choke having a fluid flow path therethrough which is to be restricted or closed, comprising: a hollow body assembly having an inlet bore and an outlet bore substantially at right angles and a main bore which is an extension of the outlet bore and which communicates with the inlet bore; a stationary member positioned in the main bore, said stationary member comprising a tubular substantially open-ended nozzle member forming a first bore which communicates with the outlet bore and is substantially aligned therewith, said nozzle member forming only...

이 특허를 인용한 특허 피인용횟수: 23

  1. Madison, Kent R.. Aquifer recharge valve and method. USP2004116811353.
  2. Madison,Kent R.. Aquifer recharge valve and method. USP2007017156578.
  3. Madison, Kent R.. Aquifier flow controlling valve assembly and method. USP2013098522887.
  4. Muchow John D.. Bi-directional rotary output actuator. USP2001106302128.
  5. Bohaychuk, Larry J.. Cage valve with erosion control. USP2013028371333.
  6. Bohaychuk, Larry J.; McNeill, Mark K.. Cage valve with flow trim for reduced fracturing. USP2013078490652.
  7. Bohaychuk, Larry J.; Williams, Daniel Harlen; Reynolds, Cody Ryan; Sleiman, Anwar Abdul. Cage valve with flow trim for reduced port erosion. USP20180710012325.
  8. Bohaychuk, Larry J.; Finlayson, Douglas A.. Cage valve with instrumentation. USP20180710012327.
  9. Bohaychuk,Larry J.; Kowalchuk,Loren; Rabby,Patrick; Dannish,Chad. Choke valve flow trim for fracture prevention. USP2008097426938.
  10. Bohaychuk Larry J.,CAX ; Cove Harry Richard,CAX. Choke valve for throttling fluid flow. USP2000086105614.
  11. Kawulka,Graham Ivan; Bohaychuk,Larry J.. Choke valve with temperature transmitter. USP2006026997212.
  12. Terrell,Christopher. Fluid control. USP2006127147203.
  13. Cove,Harry Richard. Linear hydraulic stepping actuator with fast close capabilities. USP2007077237472.
  14. Karani, Hans. Low-torque choke valve for well automation. USP2018039920842.
  15. Donald, Ian; Reid, John. Method and apparatus for oil and gas operations. USP20190110174575.
  16. Donald, Ian; Reid, John. Oilfield apparatus and methods of use. USP2016099441452.
  17. Donald, Ian; Reid, John. Oilfield apparatus and methods of use. USP2017049611714.
  18. Sundararajan, Alagarsamy; Rajamarthandan, Aravindhan; Ragavan, Gayathri Srinivasa; Gramlich, Don; Vegesna, Purnima. Precise choke systems and methods. USP20190210197077.
  19. Bohaychuk, Larry J.. Reverse flow flow trim for choke valve. USP2010047699075.
  20. Bohaychuk, Larry J.. Rotary stepping actuator for valve. USP2016109458941.
  21. Goode William B. (Dallas TX). Valve design to reduce cavitation and noise. USP1989084860993.
  22. Lamb C. Paul (Dallas TX). Valve seat design to reduce cavitation. USP1987074679592.
  23. Glenn E. Wallace ; Mark H. Peterson. Water well recharge throttle valve. USP2002016338466.