CA2145721A1 - Explosive Detonation Apparatus - Google Patents
Explosive Detonation ApparatusInfo
- Publication number
- CA2145721A1 CA2145721A1 CA 2145721 CA2145721A CA2145721A1 CA 2145721 A1 CA2145721 A1 CA 2145721A1 CA 2145721 CA2145721 CA 2145721 CA 2145721 A CA2145721 A CA 2145721A CA 2145721 A1 CA2145721 A1 CA 2145721A1
- Authority
- CA
- Canada
- Prior art keywords
- detonator
- semiconductor bridge
- electrically conductive
- conductive wires
- spark gap
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
- F42B3/13—Bridge initiators with semiconductive bridge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/18—Safety initiators resistant to premature firing by static electricity or stray currents
- F42B3/188—Safety initiators resistant to premature firing by static electricity or stray currents having radio-frequency filters, e.g. containing ferrite cores or inductances
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
A detonator comprising a case into which is inserted a quantity of an explosive charge, a semiconductor bridge positioned adjacent one end of the explosive charge which is electrically connected to a spark gap and in some embodiments a capacitor and a bleeder resistor. A pair of electrically conductive wires are connected to the spark gap and semiconductor bridge to provide a means for passing an electrical charge to the semiconductor bridge. The detonator also may include an r~ attenuator, such as a ferrite bead, through which the electrically conductive wires pass. The ends of the detonator case are sealed by any appropriate means.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/219,588 | 1994-03-29 | ||
US08/219,588 US5503077A (en) | 1994-03-29 | 1994-03-29 | Explosive detonation apparatus |
US41060695A | 1995-03-23 | 1995-03-23 | |
US08/410,606 | 1995-03-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2145721A1 true CA2145721A1 (en) | 1995-09-30 |
CA2145721C CA2145721C (en) | 2000-02-01 |
Family
ID=26914044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2145721 Expired - Lifetime CA2145721C (en) | 1994-03-29 | 1995-03-28 | Explosive detonation apparatus |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0679859A3 (en) |
CA (1) | CA2145721C (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8601948B2 (en) | 2010-04-26 | 2013-12-10 | Schlumberger Technology Corporation | Spark gap isolated, RF safe, primary explosive detonator for downhole applications |
US9702680B2 (en) | 2013-07-18 | 2017-07-11 | Dynaenergetics Gmbh & Co. Kg | Perforation gun components and system |
US20220258103A1 (en) | 2013-07-18 | 2022-08-18 | DynaEnergetics Europe GmbH | Detonator positioning device |
US9939235B2 (en) | 2013-10-09 | 2018-04-10 | Battelle Energy Alliance, Llc | Initiation devices, initiation systems including initiation devices and related methods |
CA2941648C (en) | 2014-03-07 | 2022-08-16 | Dynaenergetics Gmbh & Co. Kg | Device and method for positioning a detonator within a perforating gun assembly |
WO2015179787A1 (en) | 2014-05-23 | 2015-11-26 | Hunting Titan, Inc. | Box by pin perforating gun system and methods |
US10273788B2 (en) | 2014-05-23 | 2019-04-30 | Hunting Titan, Inc. | Box by pin perforating gun system and methods |
US10066919B2 (en) | 2015-06-09 | 2018-09-04 | Owen Oil Tools Lp | Oilfield side initiation block containing booster |
EP3470620B1 (en) | 2015-11-12 | 2020-06-03 | Hunting Titan Inc. | Contact plunger cartridge assembly |
US10400558B1 (en) | 2018-03-23 | 2019-09-03 | Dynaenergetics Gmbh & Co. Kg | Fluid-disabled detonator and method of use |
US11021923B2 (en) | 2018-04-27 | 2021-06-01 | DynaEnergetics Europe GmbH | Detonation activated wireline release tool |
US11808093B2 (en) | 2018-07-17 | 2023-11-07 | DynaEnergetics Europe GmbH | Oriented perforating system |
US11339614B2 (en) | 2020-03-31 | 2022-05-24 | DynaEnergetics Europe GmbH | Alignment sub and orienting sub adapter |
WO2021116338A1 (en) | 2019-12-10 | 2021-06-17 | DynaEnergetics Europe GmbH | Oriented perforating system |
US11761281B2 (en) | 2019-10-01 | 2023-09-19 | DynaEnergetics Europe GmbH | Shaped power charge with integrated initiator |
US11225848B2 (en) | 2020-03-20 | 2022-01-18 | DynaEnergetics Europe GmbH | Tandem seal adapter, adapter assembly with tandem seal adapter, and wellbore tool string with adapter assembly |
US11988049B2 (en) | 2020-03-31 | 2024-05-21 | DynaEnergetics Europe GmbH | Alignment sub and perforating gun assembly with alignment sub |
US11713625B2 (en) | 2021-03-03 | 2023-08-01 | DynaEnergetics Europe GmbH | Bulkhead |
US11753889B1 (en) | 2022-07-13 | 2023-09-12 | DynaEnergetics Europe GmbH | Gas driven wireline release tool |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3117519A (en) * | 1962-01-31 | 1964-01-14 | Charles R Hamilton | Electric initiators for explosives, pyrotechnics and propellants |
US3274937A (en) * | 1963-04-11 | 1966-09-27 | Physical Sciences Corp | Detonation squib |
US3169482A (en) * | 1963-08-14 | 1965-02-16 | Eitelmccullough Inc | Electro explosive device having a surface spark gap |
US3366055A (en) * | 1966-11-15 | 1968-01-30 | Green Mansions Inc | Semiconductive explosive igniter |
US3524408A (en) * | 1968-01-22 | 1970-08-18 | Conax Corp | Electrostatic discharge dissipator for a heater bridgewire circuit of an electro-explosive device |
US3640224A (en) * | 1969-09-12 | 1972-02-08 | Us Navy | Rf immune firing circuit employing high-impedance leads |
US3960083A (en) * | 1975-03-06 | 1976-06-01 | The United States Of America As Represented By The United States Energy Research & Development Administration | Igniter containing titanium hydride and potassium perchlorate |
US4312271A (en) * | 1976-07-08 | 1982-01-26 | Systems, Science And Software | Delay detonator device |
FR2436963A1 (en) * | 1978-09-19 | 1980-04-18 | France Etat | ELECTRIC PRIMER WITH CONDUCTIVE COMPOSITION |
US4592280A (en) * | 1984-03-29 | 1986-06-03 | General Dynamics, Pomona Division | Filter/shield for electro-explosive devices |
US4708060A (en) * | 1985-02-19 | 1987-11-24 | The United States Of America As Represented By The United States Department Of Energy | Semiconductor bridge (SCB) igniter |
US4976200A (en) * | 1988-12-30 | 1990-12-11 | The United States Of America As Represented By The United States Department Of Energy | Tungsten bridge for the low energy ignition of explosive and energetic materials |
US5094167A (en) * | 1990-03-14 | 1992-03-10 | Schlumberger Technology Corporation | Shape charge for a perforating gun including an integrated circuit detonator and wire contactor responsive to ordinary current for detonation |
-
1995
- 1995-03-28 CA CA 2145721 patent/CA2145721C/en not_active Expired - Lifetime
- 1995-03-29 EP EP95302104A patent/EP0679859A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CA2145721C (en) | 2000-02-01 |
EP0679859A3 (en) | 1996-07-03 |
EP0679859A2 (en) | 1995-11-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20150330 |