AU4103900A - Method for triggering detonators via a line of a large length - Google Patents

Method for triggering detonators via a line of a large length

Info

Publication number
AU4103900A
AU4103900A AU41039/00A AU4103900A AU4103900A AU 4103900 A AU4103900 A AU 4103900A AU 41039/00 A AU41039/00 A AU 41039/00A AU 4103900 A AU4103900 A AU 4103900A AU 4103900 A AU4103900 A AU 4103900A
Authority
AU
Australia
Prior art keywords
detonators
line
triggering
capacitors
large length
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
AU41039/00A
Inventor
Heinz Schafer
Ulrich Steiner
Andreas Zemla
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.)
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
Original Assignee
Dynamit Nobel AG
Dynamit Nobel GmbH Explosivstoff und Systemtechnik
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, Dynamit Nobel GmbH Explosivstoff und Systemtechnik filed Critical Dynamit Nobel AG
Publication of AU4103900A publication Critical patent/AU4103900A/en
Abandoned legal-status Critical Current

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.
AU41039/00A 1999-03-20 2000-03-02 Method for triggering detonators via a line of a large length Abandoned AU4103900A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19912641A DE19912641A1 (en) 1999-03-20 1999-03-20 Method of triggering detonators over a long line
DE19912641 1999-03-20
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
AU4103900A true AU4103900A (en) 2000-10-09

Family

ID=7901798

Family Applications (1)

Application Number Title Priority Date Filing Date
AU41039/00A Abandoned AU4103900A (en) 1999-03-20 2000-03-02 Method for triggering detonators via a line of a large length

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
ATE267382T1 (en) 2004-06-15
EP1166037A1 (en) 2002-01-02
DE50006500D1 (en) 2004-06-24
WO2000057124A1 (en) 2000-09-28

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase