FI911900A - PLASMASPRAENGNINGSFOERFARANDE. - Google Patents
PLASMASPRAENGNINGSFOERFARANDE. Download PDFInfo
- Publication number
- FI911900A FI911900A FI911900A FI911900A FI911900A FI 911900 A FI911900 A FI 911900A FI 911900 A FI911900 A FI 911900A FI 911900 A FI911900 A FI 911900A FI 911900 A FI911900 A FI 911900A
- Authority
- FI
- Finland
- Prior art keywords
- confined area
- electrolyte
- substance
- gigawatts
- blasted
- Prior art date
Links
- 239000003792 electrolyte Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005422 blasting Methods 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 abstract 1
- 239000002360 explosive Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
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)
- Application Of Or Painting With Fluid Materials (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Physical Or Chemical Processes And Apparatus (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.
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 |
|---|---|
| FI911900A0 FI911900A0 (en) | 1991-04-19 |
| FI911900A true FI911900A (en) | 1991-10-21 |
Family
ID=4144792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI911900A FI911900A (en) | 1990-04-20 | 1991-04-19 | PLASMASPRAENGNINGSFOERFARANDE. |
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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU656818B2 (en) * | 1992-11-05 | 1995-02-16 | Assa Abloy Australia Pty Limited | Improvement to deadlocks |
| US6215734B1 (en) * | 1996-08-05 | 2001-04-10 | 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 |
| WO2015042608A1 (en) | 2013-09-23 | 2015-03-26 | 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)
| 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 |
-
1990
- 1990-04-20 CA CA002015102A patent/CA2015102C/en not_active Expired - Fee Related
-
1991
- 1991-02-04 AU AU70208/91A patent/AU627984B2/en not_active Ceased
- 1991-03-05 DE DE69110186T patent/DE69110186T2/en not_active Expired - Fee Related
- 1991-03-05 AT AT91301810T patent/ATE123554T1/en not_active IP Right Cessation
- 1991-03-05 EP EP91301810A patent/EP0453076B1/en not_active Expired - Lifetime
- 1991-04-19 FI FI911900A patent/FI911900A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0453076B1 (en) | 1995-06-07 |
| EP0453076A1 (en) | 1991-10-23 |
| DE69110186D1 (en) | 1995-07-13 |
| DE69110186T2 (en) | 1995-12-14 |
| AU7020891A (en) | 1991-10-24 |
| CA2015102A1 (en) | 1991-10-20 |
| FI911900A0 (en) | 1991-04-19 |
| AU627984B2 (en) | 1992-09-03 |
| CA2015102C (en) | 1995-09-19 |
| ATE123554T1 (en) | 1995-06-15 |
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