GR78038B - - Google Patents

Info

Publication number
GR78038B
GR78038B GR69319A GR820169319A GR78038B GR 78038 B GR78038 B GR 78038B GR 69319 A GR69319 A GR 69319A GR 820169319 A GR820169319 A GR 820169319A GR 78038 B GR78038 B GR 78038B
Authority
GR
Greece
Application number
GR69319A
Other languages
Greek (el)
Inventor
Thomas H Zimmerman
Original Assignee
Schlumberger Ltd
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 Schlumberger Ltd filed Critical Schlumberger Ltd
Publication of GR78038B publication Critical patent/GR78038B/el

Links

Classifications

    • 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
    • F42D1/05—Electric circuits for blasting
    • F42D1/055—Electric circuits for blasting specially adapted for firing multiple charges with a time delay
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Insulated Conductors (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Electrostatic Spraying Apparatus (AREA)
GR69319A 1981-09-21 1982-08-20 GR78038B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30444381A 1981-09-21 1981-09-21

Publications (1)

Publication Number Publication Date
GR78038B true GR78038B (fr) 1984-09-26

Family

ID=23176531

Family Applications (1)

Application Number Title Priority Date Filing Date
GR69319A GR78038B (fr) 1981-09-21 1982-08-20

Country Status (6)

Country Link
EP (1) EP0075520A3 (fr)
AU (1) AU558795B2 (fr)
CA (1) CA1198668A (fr)
GR (1) GR78038B (fr)
IN (1) IN158342B (fr)
NO (1) NO823004L (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7762331B2 (en) * 2006-12-21 2010-07-27 Schlumberger Technology Corporation Process for assembling a loading tube
NO2321493T3 (fr) * 2008-09-09 2018-07-21

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2142583A (en) * 1935-05-13 1939-01-03 Lane Wells Co Perforating gun
US2266343A (en) * 1941-02-06 1941-12-16 Lane Wells Co Gun perforator
US3208378A (en) * 1962-12-26 1965-09-28 Technical Drilling Service Inc Electrical firing
US3517758A (en) * 1968-09-23 1970-06-30 Schlumberger Technology Corp Control apparatus for selectively operating electrical well-completion devices
FR2144598B1 (fr) * 1971-07-07 1974-09-06 Geophysique Cie Gle
US4234768A (en) * 1974-12-23 1980-11-18 Sie, Inc. Selective fire perforating gun switch
NL7514743A (en) * 1975-12-18 1977-06-21 Philips Nv Three phase wiring connector block - has internal crossover connections which give tidier external wiring

Also Published As

Publication number Publication date
AU558795B2 (en) 1987-02-12
IN158342B (fr) 1986-10-25
AU8854382A (en) 1983-03-31
NO823004L (no) 1983-03-22
EP0075520A2 (fr) 1983-03-30
EP0075520A3 (fr) 1985-09-18
CA1198668A (fr) 1985-12-31

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