CA2015102A1 - Plasma blasting method - Google Patents

Plasma blasting method

Info

Publication number
CA2015102A1
CA2015102A1 CA2015102A CA2015102A CA2015102A1 CA 2015102 A1 CA2015102 A1 CA 2015102A1 CA 2015102 A CA2015102 A CA 2015102A CA 2015102 A CA2015102 A CA 2015102A CA 2015102 A1 CA2015102 A1 CA 2015102A1
Authority
CA
Canada
Prior art keywords
confined area
blasting method
electrolyte
substance
plasma
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.)
Granted
Application number
CA2015102A
Other languages
French (fr)
Other versions
CA2015102C (en
Inventor
Frank Kitzinger
Jacques Nantel
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.)
Noranda Inc
Original Assignee
Noranda 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 Noranda Inc filed Critical Noranda Inc
Priority to CA002015102A priority Critical patent/CA2015102C/en
Priority to AU70208/91A priority patent/AU627984B2/en
Priority to DE69110186T priority patent/DE69110186T2/en
Priority to AT91301810T priority patent/ATE123554T1/en
Priority to EP91301810A priority patent/EP0453076B1/en
Priority to FI911900A priority patent/FI911900L/en
Publication of CA2015102A1 publication Critical patent/CA2015102A1/en
Application granted granted Critical
Publication of CA2015102C publication Critical patent/CA2015102C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/18—Other methods or devices for dislodging with or without loading by electricity
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/14—Drilling by use of heat, e.g. flame drilling
    • E21B7/15—Drilling by use of heat, e.g. flame drilling of electrically generated heat

Landscapes

  • Mining & Mineral Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Disintegrating Or Milling (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A blasting method which comprises delivering electrical energy at a rate of at least 100 megawatts per microsecond until a peak power of at least 3 gigawatts is reached across the gap of two poles of a coaxial electrode assembly immersed in an electrolyte within a confined area of a substance to be blasted. A dielectric break-down of the electrolyte in the confined area is produced resulting in the formation of plasma within the confined area which creates a pressure sufficient to blast the substance in the manner of a high explosive charge.
CA002015102A 1990-04-20 1990-04-20 Plasma blasting method Expired - Fee Related CA2015102C (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002015102A CA2015102C (en) 1990-04-20 1990-04-20 Plasma blasting method
AU70208/91A AU627984B2 (en) 1990-04-20 1991-02-04 Plasma blasting method
DE69110186T DE69110186T2 (en) 1990-04-20 1991-03-05 Plasma blasting process.
AT91301810T ATE123554T1 (en) 1990-04-20 1991-03-05 PLASMA EXPLOSION PROCESS.
EP91301810A EP0453076B1 (en) 1990-04-20 1991-03-05 Plasma blasting method
FI911900A FI911900L (en) 1990-04-20 1991-04-19 PLASMASPRAENGNINGSFOERFARANDE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002015102A CA2015102C (en) 1990-04-20 1990-04-20 Plasma blasting method

Publications (2)

Publication Number Publication Date
CA2015102A1 true CA2015102A1 (en) 1991-10-20
CA2015102C CA2015102C (en) 1995-09-19

Family

ID=4144792

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002015102A Expired - Fee Related CA2015102C (en) 1990-04-20 1990-04-20 Plasma blasting method

Country Status (6)

Country Link
EP (1) EP0453076B1 (en)
AT (1) ATE123554T1 (en)
AU (1) AU627984B2 (en)
CA (1) CA2015102C (en)
DE (1) DE69110186T2 (en)
FI (1) FI911900L (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU656818B2 (en) * 1992-11-05 1995-02-16 Assa Abloy Australia Pty Limited Improvement to deadlocks
AU3911997A (en) * 1996-08-05 1998-02-25 Tetra Corporation Electrohydraulic pressure wave projectors
AU1178799A (en) * 1997-11-06 1999-05-31 Baggermaatschappij Boskalis B.V. Method and device for crushing rock, manipulator to be used in such a device, assembly of a housing and a wire conductor placed therein, and assembly of a housing and a means placed therein
KR100308081B1 (en) * 1999-03-02 2001-09-24 정기형 Electro-power impactor cell for plasma blasting
RU2228436C2 (en) * 2002-04-23 2004-05-10 Открытое акционерное общество "Инфотэк Груп" Method for achieving high temperatures and pressures in limited and closed space
US10060195B2 (en) 2006-06-29 2018-08-28 Sdg Llc Repetitive pulsed electric discharge apparatuses and methods of use
US8628146B2 (en) * 2010-03-17 2014-01-14 Auburn University Method of and apparatus for plasma blasting
US10407995B2 (en) 2012-07-05 2019-09-10 Sdg Llc Repetitive pulsed electric discharge drills including downhole formation evaluation
CA2962002C (en) 2013-09-23 2021-11-09 Sdg Llc Method and apparatus for isolating and switching lower-voltage pulses from high voltage pulses in electrocrushing and electrohydraulic drills

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158207A (en) * 1961-08-14 1964-11-24 Jersey Producttion Res Company Combination roller cone and spark discharge drill bit
US3583766A (en) * 1969-05-22 1971-06-08 Louis R Padberg Jr Apparatus for facilitating the extraction of minerals from the ocean floor
US3679007A (en) * 1970-05-25 1972-07-25 Louis Richard O Hare Shock plasma earth drill

Also Published As

Publication number Publication date
EP0453076A1 (en) 1991-10-23
AU627984B2 (en) 1992-09-03
FI911900A7 (en) 1991-10-21
CA2015102C (en) 1995-09-19
EP0453076B1 (en) 1995-06-07
AU7020891A (en) 1991-10-24
DE69110186T2 (en) 1995-12-14
DE69110186D1 (en) 1995-07-13
FI911900A0 (en) 1991-04-19
FI911900L (en) 1991-10-21
ATE123554T1 (en) 1995-06-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed