ATE267382T1 - METHOD FOR TRIGGERING IGNITIONS THROUGH A LARGE LENGTH CABLE - Google Patents

METHOD FOR TRIGGERING IGNITIONS THROUGH A LARGE LENGTH CABLE

Info

Publication number
ATE267382T1
ATE267382T1 AT00920468T AT00920468T ATE267382T1 AT E267382 T1 ATE267382 T1 AT E267382T1 AT 00920468 T AT00920468 T AT 00920468T AT 00920468 T AT00920468 T AT 00920468T AT E267382 T1 ATE267382 T1 AT E267382T1
Authority
AT
Austria
Prior art keywords
detonators
triggering
capacitors
large length
triggered
Prior art date
Application number
AT00920468T
Other languages
German (de)
Inventor
Heinz Schaefer
Ulrich Steiner
Andreas Zemla
Original Assignee
Dynamit Nobel Ag
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 Dynamit Nobel Ag filed Critical Dynamit Nobel Ag
Application granted granted Critical
Publication of ATE267382T1 publication Critical patent/ATE267382T1/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Air Bags (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

When triggering detonators via lines of a large length, which is often the case in exploration wells in oil or natural gas fields, signal distortions occur due to the capacitive and inductive behavior of the long line (3) as well as of the consumers connected in incoming circuit to the detonators (4a, 4b, 4c). For this reason, a sure triggering of the detonators is no longer guaranteed. The invention thus provides that, before the detonators are triggered, the existing capacitors (8) are charged by applying a direct current to the line. Said capacitors (8) are charged to a level such that, at least up to the time at which the last detonator is triggered, the capacitors are not subjected to an additional charging that is induced by charge losses.
AT00920468T 1999-03-20 2000-03-02 METHOD FOR TRIGGERING IGNITIONS THROUGH A LARGE LENGTH CABLE ATE267382T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19912641A DE19912641A1 (en) 1999-03-20 1999-03-20 Method of triggering detonators over a long line
PCT/EP2000/001821 WO2000057124A1 (en) 1999-03-20 2000-03-02 Method for triggering detonators via a line of a large length

Publications (1)

Publication Number Publication Date
ATE267382T1 true ATE267382T1 (en) 2004-06-15

Family

ID=7901798

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00920468T ATE267382T1 (en) 1999-03-20 2000-03-02 METHOD FOR TRIGGERING IGNITIONS THROUGH A LARGE LENGTH CABLE

Country Status (5)

Country Link
EP (1) EP1166037B1 (en)
AT (1) ATE267382T1 (en)
AU (1) AU4103900A (en)
DE (2) DE19912641A1 (en)
WO (1) WO2000057124A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10139810B4 (en) * 2000-11-09 2014-10-16 Orica Explosives Technology Pty. Ltd. Voltage sensor for monitoring electronic ignition circuits
CN102889161A (en) * 2012-09-11 2013-01-23 中国航天科工集团第六研究院二一〇所 Impulse engine ignition control device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417259A (en) * 1966-10-26 1968-12-17 Conductron Corp Control systems for sequentially actuating a plurality of loads
US3564278A (en) * 1968-12-27 1971-02-16 Energy Conversion Devices Inc Squib control circuit
JP2590344B2 (en) * 1987-10-20 1997-03-12 日本油脂株式会社 Electronic delay detonator
FR2695719B1 (en) * 1992-09-17 1994-12-02 Davey Bickford Method for controlling detonators of the type with integrated electronic delay ignition module, coded firing control assembly and coded ignition module for its implementation.

Also Published As

Publication number Publication date
EP1166037B1 (en) 2004-05-19
DE19912641A1 (en) 2000-09-21
DE50006500D1 (en) 2004-06-24
AU4103900A (en) 2000-10-09
WO2000057124A1 (en) 2000-09-28
EP1166037A1 (en) 2002-01-02

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee