BE784540A - Foret a etincelle a basse tension - Google Patents

Foret a etincelle a basse tension

Info

Publication number
BE784540A
BE784540A BE784540A BE784540A BE784540A BE 784540 A BE784540 A BE 784540A BE 784540 A BE784540 A BE 784540A BE 784540 A BE784540 A BE 784540A BE 784540 A BE784540 A BE 784540A
Authority
BE
Belgium
Prior art keywords
drill bit
low voltage
voltage spark
spark drill
bit
Prior art date
Application number
BE784540A
Other languages
English (en)
Inventor
G N Woodruff
Original Assignee
Trw 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 Trw Inc filed Critical Trw Inc
Publication of BE784540A publication Critical patent/BE784540A/fr

Links

Classifications

    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
BE784540A 1971-06-07 1972-06-07 Foret a etincelle a basse tension BE784540A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15037171A 1971-06-07 1971-06-07

Publications (1)

Publication Number Publication Date
BE784540A true BE784540A (fr) 1972-10-02

Family

ID=22534220

Family Applications (1)

Application Number Title Priority Date Filing Date
BE784540A BE784540A (fr) 1971-06-07 1972-06-07 Foret a etincelle a basse tension

Country Status (7)

Country Link
US (1) US3708022A (fr)
BE (1) BE784540A (fr)
CA (1) CA960641A (fr)
DE (1) DE2227505A1 (fr)
FR (1) FR2140490A1 (fr)
GB (1) GB1360925A (fr)
IT (1) IT960676B (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230425A (en) * 1979-03-19 1980-10-28 Gusev Vladimir A Method and installation for producing cast-in-situ piles
US4479680A (en) * 1980-04-11 1984-10-30 Wesley Richard H Method and apparatus for electrohydraulic fracturing of rock and the like
US4345650A (en) * 1980-04-11 1982-08-24 Wesley Richard H Process and apparatus for electrohydraulic recovery of crude oil
US4741405A (en) * 1987-01-06 1988-05-03 Tetra Corporation Focused shock spark discharge drill using multiple electrodes
DE3701676A1 (de) * 1987-01-22 1988-08-04 Werner Foppe Profil-schmelzbohr-verfahren
DE4008571A1 (de) * 1990-03-14 1991-01-24 Manfred Bocian Verfahren zur erdwaermegewinnung mittels hydrologischer tiefenbohrung
US5482357A (en) * 1995-02-28 1996-01-09 Noranda, Inc. Plasma blasting probe assembly
DE19534173A1 (de) * 1995-09-14 1997-03-20 Linde Ag Bohrverfahren
US6215734B1 (en) * 1996-08-05 2001-04-10 Tetra Corporation Electrohydraulic pressure wave projectors
US20040145354A1 (en) * 2003-01-17 2004-07-29 Stumberger Walter W. Method for controlling an electrical discharge using electrolytes and other electrically conductive fluid materials
US20080112107A1 (en) * 2004-01-14 2008-05-15 Stumberger Walter W Method for controlling an electrical discharge using electrically conductive fluid materials
US8789772B2 (en) 2004-08-20 2014-07-29 Sdg, Llc Virtual electrode mineral particle disintegrator
EP3620605B1 (fr) * 2004-08-20 2022-08-24 Sdg, Llc Procédés et appareil de forage, de fracturation et de broyage de roche par électrique pulsé
US7584783B2 (en) * 2005-05-17 2009-09-08 Baker Hughes Incorporated Surface activated downhole spark-gap tool
US10060195B2 (en) 2006-06-29 2018-08-28 Sdg Llc Repetitive pulsed electric discharge apparatuses and methods of use
AT505787B1 (de) 2007-09-18 2009-06-15 Chemiefaser Lenzing Ag Lyocellfaser
US9181754B2 (en) * 2011-08-02 2015-11-10 Haliburton Energy Services, Inc. Pulsed-electric drilling systems and methods with formation evaluation and/or bit position tracking
AU2013286589A1 (en) * 2012-07-05 2015-02-26 Sdg, Llc Apparatuses and methods for supplying electrical power to an electrocrushing drill
US10407995B2 (en) 2012-07-05 2019-09-10 Sdg Llc Repetitive pulsed electric discharge drills including downhole formation evaluation
US10077644B2 (en) 2013-03-15 2018-09-18 Chevron U.S.A. Inc. Method and apparatus for generating high-pressure pulses in a subterranean dielectric medium
US10113364B2 (en) 2013-09-23 2018-10-30 Sdg Llc Method and apparatus for isolating and switching lower voltage pulses from high voltage pulses in electrocrushing and electrohydraulic drills

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953353A (en) * 1957-06-13 1960-09-20 Benjamin G Bowden Apparatus for drilling holes in earth
US2963620A (en) * 1959-08-27 1960-12-06 Gen Lab Associates Inc Sensing igniter
US3158207A (en) * 1961-08-14 1964-11-24 Jersey Producttion Res Company Combination roller cone and spark discharge drill bit
US3500942A (en) * 1968-07-30 1970-03-17 Shell Oil Co Shaped spark drill
US3679007A (en) * 1970-05-25 1972-07-25 Louis Richard O Hare Shock plasma earth drill

Also Published As

Publication number Publication date
CA960641A (en) 1975-01-07
DE2227505A1 (de) 1973-01-04
US3708022A (en) 1973-01-02
IT960676B (it) 1973-11-30
FR2140490A1 (fr) 1973-01-19
GB1360925A (en) 1974-07-24

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