EP0038034A3 - Safety valve manifold system - Google Patents

Safety valve manifold system Download PDF

Info

Publication number
EP0038034A3
EP0038034A3 EP81102711A EP81102711A EP0038034A3 EP 0038034 A3 EP0038034 A3 EP 0038034A3 EP 81102711 A EP81102711 A EP 81102711A EP 81102711 A EP81102711 A EP 81102711A EP 0038034 A3 EP0038034 A3 EP 0038034A3
Authority
EP
European Patent Office
Prior art keywords
safety valve
valve
hydraulic
line
shut
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.)
Withdrawn
Application number
EP81102711A
Other languages
German (de)
French (fr)
Other versions
EP0038034A2 (en
Inventor
Larry James Talafuse
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.)
FMC Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Publication of EP0038034A2 publication Critical patent/EP0038034A2/en
Publication of EP0038034A3 publication Critical patent/EP0038034A3/en
Withdrawn legal-status Critical Current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
    • E21B34/16—Control means therefor being outside the borehole

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)
  • Fluid-Pressure Circuits (AREA)

Abstract

A hydraulic safety valve manifold system for provid­ ing positive opening and closing of a surface-controlled, sub-surface safety valve in a subsea well, including a shut-off valve which prevents leakage of well fluids to the outside environment if a leak should occur in the safety valve or in hydraulic lines which are connected to the hydraulic actuator of the safety valve. A hydraulic con­ trol line is connected to the safety valve actuator through a normally closed shut-off valve, and this line is also connected to the actuator of the shut-off valve to hold both the shut-off valve and the safety valve open when the line is pressurized. The hydraulic line is also con­ nected to an actuator of a variable volume accumulator to empty the accumulator when the line is pressurized. When pressure in the hydraulic line is relieved the shut-­ off valve closes and the accumulator accepts fluid from the hydraulic actuator of the safety valve to insure that the safety valve closes.
EP81102711A 1980-04-11 1981-04-09 Safety valve manifold system Withdrawn EP0038034A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13950280A 1980-04-11 1980-04-11
US139502 1987-12-30

Publications (2)

Publication Number Publication Date
EP0038034A2 EP0038034A2 (en) 1981-10-21
EP0038034A3 true EP0038034A3 (en) 1981-11-04

Family

ID=22486976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102711A Withdrawn EP0038034A3 (en) 1980-04-11 1981-04-09 Safety valve manifold system

Country Status (3)

Country Link
EP (1) EP0038034A3 (en)
BR (1) BR8102183A (en)
CA (1) CA1156139A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO309737B1 (en) * 1999-09-30 2001-03-19 Kongsberg Offshore As Device for an underwater system for controlling a hydraulic actuator and a system with such a device
US6427778B1 (en) * 2000-05-18 2002-08-06 Baker Hughes Incorporated Control system for deep set subsurface valves
WO2015163767A1 (en) * 2014-04-25 2015-10-29 Subsea Chokes International As Actuator for use in subsea installations

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998070A (en) * 1958-11-17 1961-08-29 Otis Eng Co Tamper proof manifold
US3142337A (en) * 1960-10-24 1964-07-28 Shell Oil Co Hydraulic system for underwater wellheads
US3763891A (en) * 1972-01-13 1973-10-09 M Stiltner Control valve
US3854695A (en) * 1972-09-28 1974-12-17 Vetco Offshore Ind Inc Electromagnet control apparatus
US4082147A (en) * 1977-02-24 1978-04-04 Hydril Company Method and apparatus for a surface control system for: subsurface safety valves
US4193449A (en) * 1977-08-12 1980-03-18 Fmc Corporation Valve operating circuit
FR2455230A1 (en) * 1979-04-24 1980-11-21 Fmc Corp HYDRAULIC VALVE FOR USE WITH A PRESSURIZED HYDRAULIC FLUID SOURCE AND A SAFETY VALVE IN AN OIL WELL

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998070A (en) * 1958-11-17 1961-08-29 Otis Eng Co Tamper proof manifold
US3142337A (en) * 1960-10-24 1964-07-28 Shell Oil Co Hydraulic system for underwater wellheads
US3763891A (en) * 1972-01-13 1973-10-09 M Stiltner Control valve
US3854695A (en) * 1972-09-28 1974-12-17 Vetco Offshore Ind Inc Electromagnet control apparatus
US4082147A (en) * 1977-02-24 1978-04-04 Hydril Company Method and apparatus for a surface control system for: subsurface safety valves
US4193449A (en) * 1977-08-12 1980-03-18 Fmc Corporation Valve operating circuit
FR2455230A1 (en) * 1979-04-24 1980-11-21 Fmc Corp HYDRAULIC VALVE FOR USE WITH A PRESSURIZED HYDRAULIC FLUID SOURCE AND A SAFETY VALVE IN AN OIL WELL
GB2047773A (en) * 1979-04-24 1980-12-03 Fmc Corp A hydraulic valve for the control of well safety valves

Also Published As

Publication number Publication date
BR8102183A (en) 1981-10-13
EP0038034A2 (en) 1981-10-21
CA1156139A (en) 1983-11-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR GB IT

AK Designated contracting states

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19811024

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19830309

RIN1 Information on inventor provided before grant (corrected)

Inventor name: TALAFUSE, LARRY JAMES