EP0075520A2 - Schaltbares Stromkreissystem für Perforator - Google Patents

Schaltbares Stromkreissystem für Perforator Download PDF

Info

Publication number
EP0075520A2
EP0075520A2 EP82401712A EP82401712A EP0075520A2 EP 0075520 A2 EP0075520 A2 EP 0075520A2 EP 82401712 A EP82401712 A EP 82401712A EP 82401712 A EP82401712 A EP 82401712A EP 0075520 A2 EP0075520 A2 EP 0075520A2
Authority
EP
European Patent Office
Prior art keywords
harness
guns
gun
perforating
electrical
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Withdrawn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
EP82401712A
Other languages
English (en)
French (fr)
Other versions
EP0075520A3 (de
Inventor
Thomas H. Zimmerman
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.)
SLB NV
Services Petroliers Schlumberger SA
Schlumberger Ltd USA
Original Assignee
Schlumberger NV
Societe de Prospection Electrique Schlumberger SA
Schlumberger Ltd USA
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 NV, Societe de Prospection Electrique Schlumberger SA, Schlumberger Ltd USA filed Critical Schlumberger NV
Publication of EP0075520A2 publication Critical patent/EP0075520A2/de
Publication of EP0075520A3 publication Critical patent/EP0075520A3/de
Withdrawn legal-status Critical Current

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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

Definitions

  • Prior art selective firing systems commonly connect the perforating guns to the firing control system (at the surface of the earth) on a single conductor, using, typically, an addressing device downhole which responds to coded signals on the conductor for selecting the particular gun which is to be actuated.
  • the guns are simply fired in sequence.
  • provision is made (such as in a downhole control cartridge) for controllably addressing specific guns from the surface.
  • the latter usually requires a plurality of conductors ("multi-wire" harness system) for connecting the guns to the control cartridge, with each gun typically connected to its own unique controlling wire.
  • each wire for controlling two guns by means of "diode-steering", in which a firing signal of one polarity fires one of the guns and the opposite polarity the other.
  • the firing control means at the surface can address the guns uniquely associated with any one of the identical wiring harness assemblies by causing the control cartridge to address the particular electrical conductor in the first wiring harness which, through the series of wiring harness assemblies, is cumulatively indexed thereto.

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)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Insulated Conductors (AREA)
  • Electrostatic Spraying Apparatus (AREA)
EP82401712A 1981-09-21 1982-09-21 Schaltbares Stromkreissystem für Perforator Withdrawn EP0075520A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30444381A 1981-09-21 1981-09-21
US304443 1981-09-21

Publications (2)

Publication Number Publication Date
EP0075520A2 true EP0075520A2 (de) 1983-03-30
EP0075520A3 EP0075520A3 (de) 1985-09-18

Family

ID=23176531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401712A Withdrawn EP0075520A3 (de) 1981-09-21 1982-09-21 Schaltbares Stromkreissystem für Perforator

Country Status (6)

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

Cited By (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
EP2321493A4 (de) * 2008-09-09 2015-04-15 Welldynamics Inc Fernbetätigung von bohrlochwerkzeugen

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 (de) * 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

Cited By (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
EP2321493A4 (de) * 2008-09-09 2015-04-15 Welldynamics Inc Fernbetätigung von bohrlochwerkzeugen

Also Published As

Publication number Publication date
AU558795B2 (en) 1987-02-12
CA1198668A (en) 1985-12-31
IN158342B (de) 1986-10-25
AU8854382A (en) 1983-03-31
EP0075520A3 (de) 1985-09-18
NO823004L (no) 1983-03-22
GR78038B (de) 1984-09-26

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Legal Events

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AK Designated contracting states

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Designated state(s): DE FR GB IT NL

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Effective date: 19860313

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Effective date: 19861112

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

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18D Application deemed to be withdrawn

Effective date: 19870523

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ZIMMERMAN, THOMAS H.