DE69110186D1 - Plasma blasting process. - Google Patents

Plasma blasting process.

Info

Publication number
DE69110186D1
DE69110186D1 DE69110186T DE69110186T DE69110186D1 DE 69110186 D1 DE69110186 D1 DE 69110186D1 DE 69110186 T DE69110186 T DE 69110186T DE 69110186 T DE69110186 T DE 69110186T DE 69110186 D1 DE69110186 D1 DE 69110186D1
Authority
DE
Germany
Prior art keywords
confined area
electrolyte
substance
plasma
blasting process
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.)
Expired - Fee Related
Application number
DE69110186T
Other languages
German (de)
Other versions
DE69110186T2 (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
Publication of DE69110186D1 publication Critical patent/DE69110186D1/en
Application granted granted Critical
Publication of DE69110186T2 publication Critical patent/DE69110186T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

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.
DE69110186T 1990-04-20 1991-03-05 Plasma blasting process. Expired - Fee Related DE69110186T2 (en)

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
DE69110186D1 true DE69110186D1 (en) 1995-07-13
DE69110186T2 DE69110186T2 (en) 1995-12-14

Family

ID=4144792

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69110186T Expired - Fee Related DE69110186T2 (en) 1990-04-20 1991-03-05 Plasma blasting process.

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) FI911900A (en)

Families Citing this family (8)

* 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
DE69810347D1 (en) * 1997-11-06 2003-01-30 Boskalis Bv Baggermaatschappij METHOD AND DEVICE FOR CRUSHING STONE
KR100308081B1 (en) 1999-03-02 2001-09-24 정기형 Electro-power impactor cell for plasma blasting
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
AU7020891A (en) 1991-10-24
FI911900A (en) 1991-10-21
EP0453076B1 (en) 1995-06-07
CA2015102A1 (en) 1991-10-20
DE69110186T2 (en) 1995-12-14
EP0453076A1 (en) 1991-10-23
AU627984B2 (en) 1992-09-03
FI911900A0 (en) 1991-04-19
CA2015102C (en) 1995-09-19
ATE123554T1 (en) 1995-06-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee