NO975610D0 - Fremgangsmåte og anordning for sprengning av faste bergarter - Google Patents
Fremgangsmåte og anordning for sprengning av faste bergarterInfo
- Publication number
- NO975610D0 NO975610D0 NO975610A NO975610A NO975610D0 NO 975610 D0 NO975610 D0 NO 975610D0 NO 975610 A NO975610 A NO 975610A NO 975610 A NO975610 A NO 975610A NO 975610 D0 NO975610 D0 NO 975610D0
- Authority
- NO
- Norway
- Prior art keywords
- blasting
- metal powder
- oxidizer mixture
- high voltage
- metal
- Prior art date
Links
- 238000005422 blasting Methods 0.000 title abstract 5
- 239000011435 rock Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 239000007787 solid Substances 0.000 title 1
- 239000002184 metal Substances 0.000 abstract 6
- 239000000203 mixture Substances 0.000 abstract 4
- 239000007800 oxidant agent Substances 0.000 abstract 4
- 239000000843 powder Substances 0.000 abstract 4
- 239000003990 capacitor Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000000523 sample Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000002923 metal particle Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Disintegrating Or Milling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Fish Paste Products (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/468,795 US5573307A (en) | 1994-01-21 | 1995-06-06 | Method and apparatus for blasting hard rock |
| PCT/US1996/008594 WO1996039567A1 (en) | 1995-06-06 | 1996-06-04 | Method and apparatus for blasting hard rock |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO975610D0 true NO975610D0 (no) | 1997-12-04 |
| NO975610L NO975610L (no) | 1998-02-06 |
| NO310575B1 NO310575B1 (no) | 2001-07-23 |
Family
ID=23861277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19975610A NO310575B1 (no) | 1995-06-06 | 1997-12-04 | Anordning og fremgangsmåte for sprengning av faste bergarter |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US5573307A (no) |
| EP (1) | EP0824625B1 (no) |
| JP (1) | JP2960550B2 (no) |
| KR (1) | KR100316005B1 (no) |
| CN (1) | CN1079878C (no) |
| AT (1) | ATE191957T1 (no) |
| AU (1) | AU704119B2 (no) |
| BR (1) | BR9608403A (no) |
| DE (1) | DE69607839T2 (no) |
| IL (1) | IL122289A (no) |
| MY (1) | MY116526A (no) |
| NO (1) | NO310575B1 (no) |
| PE (1) | PE13398A1 (no) |
| RU (1) | RU2139991C1 (no) |
| WO (1) | WO1996039567A1 (no) |
| ZA (1) | ZA964260B (no) |
Families Citing this family (76)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19714133C2 (de) * | 1997-04-05 | 2000-02-03 | Rheinmetall W & M Gmbh | Verfahren zur Zerstörung von verdeckt verlegten Landminen und Vorrichtung zur Durchführung dieses Verfahrens |
| AUPP021697A0 (en) | 1997-11-06 | 1997-11-27 | Rocktek Limited | Radio detonation system |
| DE19909836A1 (de) * | 1999-03-05 | 2000-09-07 | Werner Foppe | Metallschmelze-Bohrverfahren |
| US6339992B1 (en) | 1999-03-11 | 2002-01-22 | Rocktek Limited | Small charge blasting apparatus including device for sealing pressurized fluids in holes |
| US6159959A (en) * | 1999-05-06 | 2000-12-12 | American Home Products Corporation | Combined estrogen and antiestrogen therapy |
| AUPQ591000A0 (en) | 2000-02-29 | 2000-03-23 | Rockmin Pty Ltd | Cartridge shell and cartridge for blast holes and method of use |
| JP4531195B2 (ja) * | 2000-04-25 | 2010-08-25 | 株式会社熊谷組 | プラズマ破砕装置用プローブ |
| US6488086B1 (en) * | 2000-08-23 | 2002-12-03 | Evgeniy Venediktovich Daragan | Method of thermochemical treatment of a producing formation and combustible-oxidizing compound (COC) for realizing the same |
| US6679175B2 (en) | 2001-07-19 | 2004-01-20 | Rocktek Limited | Cartridge and method for small charge breaking |
| AU2003200490B2 (en) * | 2002-02-20 | 2008-05-08 | Rocktek Ltd. | Apparatus and method for fracturing a hard material |
| US6695061B2 (en) * | 2002-02-27 | 2004-02-24 | Halliburton Energy Services, Inc. | Downhole tool actuating apparatus and method that utilizes a gas absorptive material |
| WO2004012912A2 (en) * | 2002-08-05 | 2004-02-12 | Carroll Bassett | Handheld tool for breaking up rock |
| US8186454B2 (en) * | 2004-08-20 | 2012-05-29 | Sdg, Llc | Apparatus and method for electrocrushing rock |
| US7416032B2 (en) * | 2004-08-20 | 2008-08-26 | Tetra Corporation | Pulsed electric rock drilling apparatus |
| US7527108B2 (en) * | 2004-08-20 | 2009-05-05 | Tetra Corporation | Portable electrocrushing drill |
| US7959094B2 (en) * | 2004-08-20 | 2011-06-14 | Tetra Corporation | Virtual electrode mineral particle disintegrator |
| US7559378B2 (en) * | 2004-08-20 | 2009-07-14 | Tetra Corporation | Portable and directional electrocrushing drill |
| US9190190B1 (en) | 2004-08-20 | 2015-11-17 | Sdg, Llc | Method of providing a high permittivity fluid |
| US8789772B2 (en) | 2004-08-20 | 2014-07-29 | Sdg, Llc | Virtual electrode mineral particle disintegrator |
| US8172006B2 (en) | 2004-08-20 | 2012-05-08 | Sdg, Llc | Pulsed electric rock drilling apparatus with non-rotating bit |
| AU2005277008B2 (en) * | 2004-08-20 | 2011-10-06 | Sdg Llc | Pulsed electric rock drilling, fracturing, and crushing methods and apparatus |
| WO2007028238A1 (en) * | 2005-09-06 | 2007-03-15 | 14007 Mining Inc. | Method of breaking brittle solids |
| US10060195B2 (en) * | 2006-06-29 | 2018-08-28 | Sdg Llc | Repetitive pulsed electric discharge apparatuses and methods of use |
| US8839871B2 (en) | 2010-01-15 | 2014-09-23 | Halliburton Energy Services, Inc. | Well tools operable via thermal expansion resulting from reactive materials |
| RU2422637C1 (ru) * | 2010-02-26 | 2011-06-27 | Владимир Михайлович ШМЕЛЕВ | Устройство для разрушения твердых пород или бетона |
| US8628146B2 (en) * | 2010-03-17 | 2014-01-14 | Auburn University | Method of and apparatus for plasma blasting |
| US8474533B2 (en) | 2010-12-07 | 2013-07-02 | Halliburton Energy Services, Inc. | Gas generator for pressurizing downhole samples |
| ES2589589T3 (es) * | 2010-12-17 | 2016-11-15 | Rock Breaking Technology Co (Rob Tech) Ltd. | Sistema para romper (demolición-fractura-división) rocas y hormigón |
| US8826983B2 (en) * | 2010-12-29 | 2014-09-09 | Schlumberger Technology Corporation | Plasma charges |
| AU2012204152B2 (en) | 2011-01-07 | 2017-05-04 | Sdg Llc | Apparatus and method for supplying electrical power to an electrocrushing drill |
| RU2463547C2 (ru) * | 2011-03-16 | 2012-10-10 | Александр Иванович Голодяев | Зарядное устройство для снарядов из гидрида металлов с высокой степенью пассивирования бериллия, алюминия, титана и их сплавов |
| US9010442B2 (en) | 2011-08-29 | 2015-04-21 | Halliburton Energy Services, Inc. | Method of completing a multi-zone fracture stimulation treatment of a wellbore |
| US9151138B2 (en) | 2011-08-29 | 2015-10-06 | Halliburton Energy Services, Inc. | Injection of fluid into selected ones of multiple zones with well tools selectively responsive to magnetic patterns |
| US9506324B2 (en) | 2012-04-05 | 2016-11-29 | Halliburton Energy Services, Inc. | Well tools selectively responsive to magnetic patterns |
| US10407995B2 (en) * | 2012-07-05 | 2019-09-10 | Sdg Llc | Repetitive pulsed electric discharge drills including downhole formation evaluation |
| US9181788B2 (en) | 2012-07-27 | 2015-11-10 | Novas Energy Group Limited | Plasma source for generating nonlinear, wide-band, periodic, directed, elastic oscillations and a system and method for stimulating wells, deposits and boreholes using the plasma source |
| US9169705B2 (en) | 2012-10-25 | 2015-10-27 | Halliburton Energy Services, Inc. | Pressure relief-assisted packer |
| US9587486B2 (en) | 2013-02-28 | 2017-03-07 | Halliburton Energy Services, Inc. | Method and apparatus for magnetic pulse signature actuation |
| US20140262320A1 (en) | 2013-03-12 | 2014-09-18 | Halliburton Energy Services, Inc. | Wellbore Servicing Tools, Systems and Methods Utilizing Near-Field Communication |
| US9284817B2 (en) | 2013-03-14 | 2016-03-15 | Halliburton Energy Services, Inc. | Dual magnetic sensor actuation assembly |
| 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 |
| US20150075770A1 (en) | 2013-05-31 | 2015-03-19 | Michael Linley Fripp | Wireless activation of wellbore tools |
| US9752414B2 (en) | 2013-05-31 | 2017-09-05 | Halliburton Energy Services, Inc. | Wellbore servicing tools, systems and methods utilizing downhole wireless switches |
| US9482072B2 (en) | 2013-07-23 | 2016-11-01 | Halliburton Energy Services, Inc. | Selective electrical activation of downhole tools |
| US9739120B2 (en) | 2013-07-23 | 2017-08-22 | Halliburton Energy Services, Inc. | Electrical power storage for downhole tools |
| BR112016006434B1 (pt) | 2013-09-23 | 2022-02-15 | Sdg, Llc | Método para fornecer um pulso de alta tensão a uma broca de perfuração eletrotrituradora ou eletrohidráulica, e, equipamento para chavear potência para uso em perfuração eletrotrituradora ou eletro-hidráulica |
| US9890627B2 (en) | 2013-12-13 | 2018-02-13 | Chevron U.S.A. Inc. | System and methods for controlled fracturing in formations |
| EP3137731B1 (en) * | 2014-01-31 | 2024-07-17 | Green Chemistry Energy LLC | Method and system for subsurface resource production |
| MX375322B (es) | 2014-03-24 | 2025-03-06 | Halliburton Energy Services Inc | Herramientas de pozo que tienen protección magnética para sensor magnético. |
| US10808523B2 (en) | 2014-11-25 | 2020-10-20 | Halliburton Energy Services, Inc. | Wireless activation of wellbore tools |
| CA2930355C (en) * | 2015-05-26 | 2023-09-12 | Blue Spark Energy Inc. | Method for sealing an opening of a wellbore equipment |
| CN105004229B (zh) * | 2015-06-11 | 2017-03-01 | 贵州润晋碳元素材料有限公司 | 一种热膨胀裂石剂的精确可控装药方法 |
| CN105865275B (zh) * | 2016-06-03 | 2018-01-02 | 唐山市堃岳裂岩设备有限公司 | 两元自断液气裂岩管 |
| US10858922B2 (en) * | 2016-08-19 | 2020-12-08 | Halliburton Energy Services, Inc. | System and method of delivering stimulation treatment by means of gas generation |
| CN106565389B (zh) * | 2016-10-19 | 2018-11-02 | 安徽理工大学 | 一种破岩药柱装药结构及装药方法 |
| CN106565388B (zh) * | 2016-10-19 | 2018-08-21 | 安徽理工大学 | 一种破岩药柱及其制备方法 |
| US11268796B2 (en) * | 2018-02-20 | 2022-03-08 | Petram Technologies, Inc | Apparatus for plasma blasting |
| US10866076B2 (en) * | 2018-02-20 | 2020-12-15 | Petram Technologies, Inc. | Apparatus for plasma blasting |
| US10577767B2 (en) * | 2018-02-20 | 2020-03-03 | Petram Technologies, Inc. | In-situ piling and anchor shaping using plasma blasting |
| US10844702B2 (en) * | 2018-03-20 | 2020-11-24 | Petram Technologies, Inc. | Precision utility mapping and excavating using plasma blasting |
| CN108267053B (zh) * | 2018-03-28 | 2024-05-24 | 北京市政路桥股份有限公司 | 一种利用液电效应产生等离子体爆破岩石的机械装置 |
| US10767479B2 (en) * | 2018-04-03 | 2020-09-08 | Petram Technologies, Inc. | Method and apparatus for removing pavement structures using plasma blasting |
| CN108532597B (zh) * | 2018-05-07 | 2023-09-29 | 华中科技大学 | 一种打桩装置及打桩方法 |
| CN108571286B (zh) * | 2018-05-07 | 2024-04-19 | 华中科技大学 | 一种桩基开孔装置及方法 |
| CN108457264B (zh) * | 2018-05-07 | 2023-09-29 | 华中科技大学 | 一种打夯装置及打夯方法 |
| CN108871130B (zh) * | 2018-06-29 | 2024-05-17 | 中国地质大学(北京) | 一种可实现孔壁密封的等离子体爆破岩石机械装置 |
| CN108952667B (zh) * | 2018-07-31 | 2023-09-12 | 山东科技大学 | 一种基于裂缝剂的矿山岩体超深孔预裂装置 |
| CN109764355B (zh) * | 2019-01-17 | 2019-11-12 | 中国科学院力学研究所 | 一种用于微米金属粉和液态水混合物的点火系统 |
| CN111780636B (zh) * | 2019-04-04 | 2022-04-01 | 西南科技大学 | 一种用于露天矿山高温爆破的装置与方法 |
| US12188353B2 (en) * | 2020-08-28 | 2025-01-07 | Halliburton Energy Services, Inc. | Plasma chemistry derived relation between arc and spark for pulse power drilling |
| US11346217B2 (en) * | 2020-08-31 | 2022-05-31 | Halliburton Energy Services, Inc. | Plasma optimization with formational and fluid information |
| US12312956B2 (en) | 2020-09-03 | 2025-05-27 | Petram Technologies, Inc. | Robust plasma blast probe tip |
| CN112483086B (zh) * | 2020-10-30 | 2022-02-08 | 北京科技大学 | 一种瞬间电脉冲致使金属矿层碎裂的系统及使用方法 |
| US11203400B1 (en) | 2021-06-17 | 2021-12-21 | General Technologies Corp. | Support system having shaped pile-anchor foundations and a method of forming same |
| GB2618173A (en) * | 2021-10-06 | 2023-11-01 | Sadra Atiye Mahoor | A hydraulic plasma stone blaster probe |
| CN116571332B (zh) * | 2023-05-17 | 2025-06-06 | 重庆大学 | 一种密闭腔体内氢气爆炸粉碎坚硬矿石设备 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU357345A1 (ru) * | 1962-08-23 | 1983-07-30 | Yutkin L A | Устройство дл разрушени монолитных объектов |
| US3583766A (en) * | 1969-05-22 | 1971-06-08 | Louis R Padberg Jr | Apparatus for facilitating the extraction of minerals from the ocean floor |
| US3877373A (en) * | 1969-11-19 | 1975-04-15 | Du Pont | Drill-and-blast process |
| US3679007A (en) * | 1970-05-25 | 1972-07-25 | Louis Richard O Hare | Shock plasma earth drill |
| US4334474A (en) * | 1976-05-21 | 1982-06-15 | The United States Of America As Represented By The Secretary Of The Navy | Warhead initiation system |
| US4479680A (en) * | 1980-04-11 | 1984-10-30 | Wesley Richard H | Method and apparatus for electrohydraulic fracturing of rock and the like |
| US4974487A (en) * | 1984-10-05 | 1990-12-04 | Gt-Devices | Plasma propulsion apparatus and method |
| SU1391231A1 (ru) * | 1986-05-13 | 1995-02-20 | Проектно-конструкторское бюро электрогидравлики АН УССР | Установка для разрушения монолитных образований |
| US4741405A (en) * | 1987-01-06 | 1988-05-03 | Tetra Corporation | Focused shock spark discharge drill using multiple electrodes |
| US5012719A (en) * | 1987-06-12 | 1991-05-07 | Gt-Devices | Method of and apparatus for generating hydrogen and projectile accelerating apparatus and method incorporating same |
| CA1289171C (en) * | 1987-07-20 | 1991-09-17 | Frank Kitzinger | Electromechanically triggered spark gap switch |
| US4895062A (en) * | 1988-04-18 | 1990-01-23 | Fmc Corporation | Combustion augmented plasma gun |
| US5072647A (en) * | 1989-02-10 | 1991-12-17 | Gt-Devices | High-pressure having plasma flow transverse to plasma discharge particularly for projectile acceleration |
| ZA91612B (en) * | 1990-04-20 | 1991-10-30 | Noranda Inc | Plasma blasting method |
| US5052272A (en) * | 1990-08-06 | 1991-10-01 | The United States Of America As Represented By The Secretary Of The Navy | Launching projectiles with hydrogen gas generated from aluminum fuel powder/water reactions |
| RU2026987C1 (ru) * | 1992-03-24 | 1995-01-20 | Владимир Георгиевич Лабейш | Способ ведения буровзрывных работ |
| US5287791A (en) * | 1992-06-22 | 1994-02-22 | Fmc Corporation | Precision generator and distributor device for plasma in electrothermal-chemical gun systems |
| US5425570A (en) * | 1994-01-21 | 1995-06-20 | Maxwell Laboratories, Inc. | Method and apparatus for plasma blasting |
| US5482357A (en) * | 1995-02-28 | 1996-01-09 | Noranda, Inc. | Plasma blasting probe assembly |
-
1995
- 1995-06-06 US US08/468,795 patent/US5573307A/en not_active Expired - Lifetime
-
1996
- 1996-05-27 ZA ZA964260A patent/ZA964260B/xx unknown
- 1996-06-04 EP EP96917077A patent/EP0824625B1/en not_active Expired - Lifetime
- 1996-06-04 AT AT96917077T patent/ATE191957T1/de not_active IP Right Cessation
- 1996-06-04 KR KR1019970708933A patent/KR100316005B1/ko not_active Expired - Fee Related
- 1996-06-04 AU AU59762/96A patent/AU704119B2/en not_active Ceased
- 1996-06-04 WO PCT/US1996/008594 patent/WO1996039567A1/en not_active Ceased
- 1996-06-04 RU RU98100093A patent/RU2139991C1/ru not_active IP Right Cessation
- 1996-06-04 IL IL12228996A patent/IL122289A/xx not_active IP Right Cessation
- 1996-06-04 MY MYPI96002167A patent/MY116526A/en unknown
- 1996-06-04 JP JP9501134A patent/JP2960550B2/ja not_active Expired - Fee Related
- 1996-06-04 DE DE69607839T patent/DE69607839T2/de not_active Expired - Fee Related
- 1996-06-04 CN CN96194466A patent/CN1079878C/zh not_active Expired - Fee Related
- 1996-06-04 BR BR9608403A patent/BR9608403A/pt not_active IP Right Cessation
- 1996-06-06 PE PE1996000433A patent/PE13398A1/es not_active Application Discontinuation
-
1997
- 1997-12-04 NO NO19975610A patent/NO310575B1/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE69607839D1 (de) | 2000-05-25 |
| ATE191957T1 (de) | 2000-05-15 |
| IL122289A0 (en) | 1998-04-05 |
| KR19990022452A (ko) | 1999-03-25 |
| BR9608403A (pt) | 1999-01-05 |
| AU5976296A (en) | 1996-12-24 |
| EP0824625B1 (en) | 2000-04-19 |
| IL122289A (en) | 2000-08-13 |
| CN1079878C (zh) | 2002-02-27 |
| NO310575B1 (no) | 2001-07-23 |
| CN1191587A (zh) | 1998-08-26 |
| US5573307A (en) | 1996-11-12 |
| DE69607839T2 (de) | 2000-11-02 |
| WO1996039567A1 (en) | 1996-12-12 |
| EP0824625A1 (en) | 1998-02-25 |
| RU2139991C1 (ru) | 1999-10-20 |
| PE13398A1 (es) | 1998-03-24 |
| ZA964260B (en) | 1996-12-04 |
| JPH11503209A (ja) | 1999-03-23 |
| NO975610L (no) | 1998-02-06 |
| MY116526A (en) | 2004-02-28 |
| KR100316005B1 (ko) | 2002-02-28 |
| HK1015012A1 (en) | 1999-10-08 |
| AU704119B2 (en) | 1999-04-15 |
| JP2960550B2 (ja) | 1999-10-06 |
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