AU5456194A - Thermal safety switch for use with electrically actuated wellbore tools - Google Patents

Thermal safety switch for use with electrically actuated wellbore tools

Info

Publication number
AU5456194A
AU5456194A AU54561/94A AU5456194A AU5456194A AU 5456194 A AU5456194 A AU 5456194A AU 54561/94 A AU54561/94 A AU 54561/94A AU 5456194 A AU5456194 A AU 5456194A AU 5456194 A AU5456194 A AU 5456194A
Authority
AU
Australia
Prior art keywords
safety switch
electrically actuated
thermal safety
wellbore tools
actuated wellbore
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.)
Abandoned
Application number
AU54561/94A
Inventor
Richard J Ross
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.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes 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 Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of AU5456194A publication Critical patent/AU5456194A/en
Abandoned 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators
    • E21B43/1185—Ignition systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/323—Thermally-sensitive members making use of shape memory materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/01—Details
    • H01H61/0107—Details making use of shape memory materials
    • H01H2061/0115—Shape memory alloy [SMA] actuator formed by coil spring

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermally Actuated Switches (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
AU54561/94A 1992-10-28 1993-10-26 Thermal safety switch for use with electrically actuated wellbore tools Abandoned AU5456194A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US96733292A 1992-10-28 1992-10-28
US967332 1992-10-28
PCT/US1993/010445 WO1994010422A1 (en) 1992-10-28 1993-10-26 Thermal safety switch for use with electrically actuated wellbore tools

Publications (1)

Publication Number Publication Date
AU5456194A true AU5456194A (en) 1994-05-24

Family

ID=25512644

Family Applications (1)

Application Number Title Priority Date Filing Date
AU54561/94A Abandoned AU5456194A (en) 1992-10-28 1993-10-26 Thermal safety switch for use with electrically actuated wellbore tools

Country Status (3)

Country Link
AU (1) AU5456194A (en)
GB (1) GB2276768A (en)
WO (1) WO1994010422A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7487833B2 (en) 2006-05-18 2009-02-10 Schlumberger Technology Corporation Safety apparatus for perforating system
US8056632B2 (en) 2007-12-21 2011-11-15 Schlumberger Technology Corporation Downhole initiator for an explosive end device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327792A (en) * 1965-10-22 1967-06-27 Profitable Resources Inc Jet perforating gun
US3594674A (en) * 1969-08-13 1971-07-20 Robertshaw Controls Co Temperature-responsive control devcies adjustably responsive to various operating temperatures
US3612189A (en) * 1969-10-24 1971-10-12 Exxon Production Research Co Well perforating and treating apparatus
US4041865A (en) * 1975-06-04 1977-08-16 Seth F. Evans Method and apparatus for detonating explosives
GB2114294B (en) * 1982-01-25 1985-09-18 Delta Memory Metal Ltd Temperature transducer
US4457383A (en) * 1982-04-27 1984-07-03 Boop Gene T High temperature selective fire perforating gun and switch therefor
US5070788A (en) * 1990-07-10 1991-12-10 J. V. Carisella Methods and apparatus for disarming and arming explosive detonators
US5159145A (en) * 1991-08-27 1992-10-27 James V. Carisella Methods and apparatus for disarming and arming well bore explosive tools

Also Published As

Publication number Publication date
GB2276768A (en) 1994-10-05
WO1994010422A1 (en) 1994-05-11
GB9411845D0 (en) 1994-08-03

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