AU7020891A - Plasma blasting method - Google Patents

Plasma blasting method

Info

Publication number
AU7020891A
AU7020891A AU70208/91A AU7020891A AU7020891A AU 7020891 A AU7020891 A AU 7020891A AU 70208/91 A AU70208/91 A AU 70208/91A AU 7020891 A AU7020891 A AU 7020891A AU 7020891 A AU7020891 A AU 7020891A
Authority
AU
Australia
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
AU70208/91A
Other versions
AU627984B2 (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 AU7020891A publication Critical patent/AU7020891A/en
Application granted granted Critical
Publication of AU627984B2 publication Critical patent/AU627984B2/en
Anticipated expiration legal-status Critical
Ceased 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

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (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.
AU70208/91A 1990-04-20 1991-02-04 Plasma blasting method Ceased AU627984B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2015102 1990-04-20
CA002015102A CA2015102C (en) 1990-04-20 1990-04-20 Plasma blasting method

Publications (2)

Publication Number Publication Date
AU7020891A true AU7020891A (en) 1991-10-24
AU627984B2 AU627984B2 (en) 1992-09-03

Family

ID=4144792

Family Applications (1)

Application Number Title Priority Date Filing Date
AU70208/91A Ceased AU627984B2 (en) 1990-04-20 1991-02-04 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) 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
WO1999024694A1 (en) * 1997-11-06 1999-05-20 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
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
BR112016006434B1 (en) 2013-09-23 2022-02-15 Sdg, Llc METHOD FOR SUPPLYING A HIGH VOLTAGE PULSE TO AN ELECTRO-CRUSHING OR ELECTRO-HYDRAULIC DRILLING DRILL, AND POWER SWITCH EQUIPMENT FOR USE IN ELECTRO-CRUSHING OR ELECTRO-HYDRAULIC DRILLING

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
DE69110186D1 (en) 1995-07-13
CA2015102A1 (en) 1991-10-20
FI911900A0 (en) 1991-04-19
CA2015102C (en) 1995-09-19
FI911900A (en) 1991-10-21
AU627984B2 (en) 1992-09-03
EP0453076B1 (en) 1995-06-07
EP0453076A1 (en) 1991-10-23
ATE123554T1 (en) 1995-06-15
DE69110186T2 (en) 1995-12-14

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired