NO20091449L - Fremgangsmater og apparater for elektronisk tidsforsinkelse og systemer inkludert samme - Google Patents

Fremgangsmater og apparater for elektronisk tidsforsinkelse og systemer inkludert samme

Info

Publication number
NO20091449L
NO20091449L NO20091449A NO20091449A NO20091449L NO 20091449 L NO20091449 L NO 20091449L NO 20091449 A NO20091449 A NO 20091449A NO 20091449 A NO20091449 A NO 20091449A NO 20091449 L NO20091449 L NO 20091449L
Authority
NO
Norway
Prior art keywords
time delay
electronic time
voltage
explosive
delay circuit
Prior art date
Application number
NO20091449A
Other languages
English (en)
Norwegian (no)
Inventor
Francois X Prinz
Jr John A Arrell
Ronald S Borja
William J Slade
Original Assignee
Alliant Techsystems 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
Priority claimed from US11/553,361 external-priority patent/US8002026B2/en
Application filed by Alliant Techsystems Inc filed Critical Alliant Techsystems Inc
Publication of NO20091449L publication Critical patent/NO20091449L/no

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
    • F42B3/192—Initiators therefor designed for neutralisation on contact with water
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators
    • E21B43/1185—Ignition systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/06—Electric fuzes with time delay by electric circuitry
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/16—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the firing pin is displaced out of the action line for safety
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/32—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by change of fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/06—Electric contact parts specially adapted for use with electric fuzes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • F42D1/05—Electric circuits for blasting
    • F42D1/055—Electric circuits for blasting specially adapted for firing multiple charges with a time delay

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Pulse Circuits (AREA)
  • Networks Using Active Elements (AREA)
  • Air Bags (AREA)
NO20091449A 2006-10-26 2009-04-15 Fremgangsmater og apparater for elektronisk tidsforsinkelse og systemer inkludert samme NO20091449L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/553,361 US8002026B2 (en) 2006-10-26 2006-10-26 Methods and apparatuses for electronic time delay and systems including same
US11/876,841 US7789153B2 (en) 2006-10-26 2007-10-23 Methods and apparatuses for electronic time delay and systems including same
PCT/US2007/082641 WO2008070343A2 (en) 2006-10-26 2007-10-26 Methods and apparatuses for electronic time delay and systems including same

Publications (1)

Publication Number Publication Date
NO20091449L true NO20091449L (no) 2009-05-25

Family

ID=39462152

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20091449A NO20091449L (no) 2006-10-26 2009-04-15 Fremgangsmater og apparater for elektronisk tidsforsinkelse og systemer inkludert samme

Country Status (14)

Country Link
US (1) US7789153B2 (ar)
EP (1) EP2076732B1 (ar)
CN (1) CN101529197B (ar)
AT (1) ATE530871T1 (ar)
AU (1) AU2007329758B2 (ar)
BR (1) BRPI0717352A2 (ar)
CA (1) CA2667377C (ar)
DK (1) DK2076732T3 (ar)
EG (1) EG26178A (ar)
MX (1) MX2009004252A (ar)
MY (1) MY147812A (ar)
NO (1) NO20091449L (ar)
RU (1) RU2439482C2 (ar)
WO (1) WO2008070343A2 (ar)

Families Citing this family (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012058541A2 (en) 2010-10-29 2012-05-03 Shell Oil Company Well emergency separation tool for use in separating a tubular element
US9068441B2 (en) 2011-09-02 2015-06-30 Baker Hughes Incorporated Perforating stimulating bullet
US9982500B2 (en) * 2011-09-02 2018-05-29 Shell Oil Company Well emergency separation tool for use in separating a tubular element
US8967291B2 (en) 2012-06-12 2015-03-03 Halliburton Energy Services, Inc. Pressure-activated switch
RU2500881C1 (ru) * 2012-06-20 2013-12-10 Открытое акционерное общество "Всероссийский научно-исследовательский и проектно-конструкторский институт по использованию энергии взрыва в геофизике" (ОАО "ВНИПИвзрывгеофизика") Способ инициирования перфораторов, спускаемых на насосно-компрессорных трубах
CN103868415B (zh) * 2012-12-18 2016-01-27 北京全安密灵科技股份公司 一种高精度的、没有累积效应的延时方法
KR101293801B1 (ko) 2013-01-30 2013-08-06 주식회사 한화 전자 뇌관의 지연시간 제어 방법
US9447672B2 (en) 2013-02-28 2016-09-20 Orbital Atk, Inc. Method and apparatus for ballistic tailoring of propellant structures and operation thereof for downhole stimulation
US11306547B2 (en) * 2013-05-16 2022-04-19 Halliburton Energy Services, Inc. Systems and methods for releasing a tool string
US12203350B2 (en) 2013-07-18 2025-01-21 DynaEnergetics Europe GmbH Detonator positioning device
US9702680B2 (en) 2013-07-18 2017-07-11 Dynaenergetics Gmbh & Co. Kg Perforation gun components and system
CN109372475B (zh) 2013-08-26 2021-05-18 德国德力能有限公司 射孔枪和雷管组件
GB201317674D0 (en) * 2013-10-07 2013-11-20 Guardian Global Technologies Ltd Firing switch and method of operation
CA2941648C (en) 2014-03-07 2022-08-16 Dynaenergetics Gmbh & Co. Kg Device and method for positioning a detonator within a perforating gun assembly
US9995124B2 (en) 2014-09-19 2018-06-12 Orbital Atk, Inc. Downhole stimulation tools and related methods of stimulating a producing formation
US11293736B2 (en) 2015-03-18 2022-04-05 DynaEnergetics Europe GmbH Electrical connector
US9784549B2 (en) 2015-03-18 2017-10-10 Dynaenergetics Gmbh & Co. Kg Bulkhead assembly having a pivotable electric contact component and integrated ground apparatus
CN105004751B (zh) * 2015-07-28 2017-06-27 南京理工大学 一种基于激光功率稳定后的出光计时装置
US9921041B1 (en) * 2015-09-29 2018-03-20 The United States Of America As Represented By The Secretary Of The Navy Primerless digital time-delay initiator system
WO2018142173A1 (en) * 2017-02-02 2018-08-09 Schlumberger Technology Corporation Well construction using downhole communication and/or data
US10865626B2 (en) 2017-11-29 2020-12-15 DynaEnergetics Europe GmbH Hydraulic underbalance initiated safety firing head, well completion apparatus incorporating same, and method of use
EP3743591A4 (en) * 2018-01-23 2022-03-23 GeoDynamics, Inc. SWITCH ASSEMBLY THAT IS POSSIBLE TO APPLY FOR DRILLING WELL SYSTEMS AND PROCESS
US11193358B2 (en) * 2018-01-31 2021-12-07 DynaEnergetics Europe GmbH Firing head assembly, well completion device with a firing head assembly and method of use
US10520286B2 (en) 2018-04-06 2019-12-31 Dynaenergetics Gmbh & Co. Kg Inlay for shaped charge and method of use
US11053782B2 (en) 2018-04-06 2021-07-06 DynaEnergetics Europe GmbH Perforating gun system and method of use
US11661824B2 (en) 2018-05-31 2023-05-30 DynaEnergetics Europe GmbH Autonomous perforating drone
US20200018139A1 (en) * 2018-05-31 2020-01-16 Dynaenergetics Gmbh & Co. Kg Autonomous perforating drone
WO2019229521A1 (en) 2018-05-31 2019-12-05 Dynaenergetics Gmbh & Co. Kg Systems and methods for marker inclusion in a wellbore
US12031417B2 (en) 2018-05-31 2024-07-09 DynaEnergetics Europe GmbH Untethered drone string for downhole oil and gas wellbore operations
US11591885B2 (en) 2018-05-31 2023-02-28 DynaEnergetics Europe GmbH Selective untethered drone string for downhole oil and gas wellbore operations
US10794159B2 (en) 2018-05-31 2020-10-06 DynaEnergetics Europe GmbH Bottom-fire perforating drone
US10458213B1 (en) 2018-07-17 2019-10-29 Dynaenergetics Gmbh & Co. Kg Positioning device for shaped charges in a perforating gun module
US11408279B2 (en) 2018-08-21 2022-08-09 DynaEnergetics Europe GmbH System and method for navigating a wellbore and determining location in a wellbore
US10386168B1 (en) 2018-06-11 2019-08-20 Dynaenergetics Gmbh & Co. Kg Conductive detonating cord for perforating gun
USD903064S1 (en) 2020-03-31 2020-11-24 DynaEnergetics Europe GmbH Alignment sub
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
US11808098B2 (en) 2018-08-20 2023-11-07 DynaEnergetics Europe GmbH System and method to deploy and control autonomous devices
US10816311B2 (en) * 2018-11-07 2020-10-27 DynaEnergetics Europe GmbH Electronic time delay fuse
USD1019709S1 (en) 2019-02-11 2024-03-26 DynaEnergetics Europe GmbH Charge holder
USD1010758S1 (en) 2019-02-11 2024-01-09 DynaEnergetics Europe GmbH Gun body
USD1034879S1 (en) 2019-02-11 2024-07-09 DynaEnergetics Europe GmbH Gun body
US11326412B2 (en) 2019-03-15 2022-05-10 Northrop Grumman Systems Corporation Downhole sealing apparatuses and related downhole assemblies and methods
US12116871B2 (en) 2019-04-01 2024-10-15 DynaEnergetics Europe GmbH Retrievable perforating gun assembly and components
US12241326B2 (en) 2019-05-14 2025-03-04 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11255147B2 (en) 2019-05-14 2022-02-22 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11578549B2 (en) 2019-05-14 2023-02-14 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US10927627B2 (en) 2019-05-14 2021-02-23 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US12385369B2 (en) 2019-06-14 2025-08-12 DynaEngergetics Europe GmbH Perforating gun assembly with rotating shaped charge holder
US11834920B2 (en) 2019-07-19 2023-12-05 DynaEnergetics Europe GmbH Ballistically actuated wellbore tool
US11946728B2 (en) 2019-12-10 2024-04-02 DynaEnergetics Europe GmbH Initiator head with circuit board
WO2021122797A1 (en) 2019-12-17 2021-06-24 DynaEnergetics Europe GmbH Modular perforating gun system
USD1041608S1 (en) 2020-03-20 2024-09-10 DynaEnergetics Europe GmbH Outer connector
USD981345S1 (en) 2020-11-12 2023-03-21 DynaEnergetics Europe GmbH Shaped charge casing
US11988049B2 (en) 2020-03-31 2024-05-21 DynaEnergetics Europe GmbH Alignment sub and perforating gun assembly with alignment sub
USD904475S1 (en) 2020-04-29 2020-12-08 DynaEnergetics Europe GmbH Tandem sub
US12326069B2 (en) 2020-10-20 2025-06-10 DynaEnergetics Europe GmbH Perforating gun and alignment assembly
US12320238B2 (en) 2020-12-21 2025-06-03 DynaEnergetics Europe GmbH Encapsulated shaped charge
WO2022148557A1 (en) 2021-01-08 2022-07-14 DynaEnergetics Europe GmbH Perforating gun assembly and components
WO2022184732A1 (en) 2021-03-03 2022-09-09 DynaEnergetics Europe GmbH Bulkhead and tandem seal adapter
US11732556B2 (en) 2021-03-03 2023-08-22 DynaEnergetics Europe GmbH Orienting perforation gun assembly
US12366142B2 (en) 2021-03-03 2025-07-22 DynaEnergetics Europe GmbH Modular perforating gun system
US11713625B2 (en) 2021-03-03 2023-08-01 DynaEnergetics Europe GmbH Bulkhead
US12000267B2 (en) 2021-09-24 2024-06-04 DynaEnergetics Europe GmbH Communication and location system for an autonomous frack system
US12253339B2 (en) 2021-10-25 2025-03-18 DynaEnergetics Europe GmbH Adapter and shaped charge apparatus for optimized perforation jet
US12312925B2 (en) 2021-12-22 2025-05-27 DynaEnergetics Europe GmbH Manually oriented internal shaped charge alignment system and method of use
WO2023200984A1 (en) 2022-04-15 2023-10-19 Dbk Industries, Llc Fixed-volume setting tool
WO2023205822A1 (en) * 2022-04-20 2023-10-26 Detnet South Africa (Pty) Ltd Failsafe detonator
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool
WO2024013338A1 (en) 2022-07-13 2024-01-18 DynaEnergetics Europe GmbH Gas driven wireline release tool
US12546194B2 (en) 2023-08-04 2026-02-10 DynaEnergetics Europe GmbH Method and apparatus for automatic arming of perforating gun

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739535A (en) * 1950-07-14 1956-03-27 Atlas Powder Co Electric explosion initiators
US3391263A (en) * 1965-10-24 1968-07-02 Schlumberger Technology Corp Apparatus for controlling well tools in well bores
US3358600A (en) * 1966-01-13 1967-12-19 Trojan Powder Co Self-destroying explosive cartridge for underwater seismic exploration
GB2015791B (en) * 1978-02-01 1982-06-03 Ici Ltd Selective actuation of electrical loads
US4753170A (en) * 1983-06-23 1988-06-28 Jet Research Center Polygonal detonating cord and method of charge initiation
US4614156A (en) * 1984-03-08 1986-09-30 Halliburton Company Pressure responsive explosion initiator with time delay and method of use
CA1261377A (en) * 1985-07-31 1989-09-26 Laurier J. Comeau Pressure actuator switch
US4762067A (en) * 1987-11-13 1988-08-09 Halliburton Company Downhole perforating method and apparatus using secondary explosive detonators
US4969525A (en) * 1989-09-01 1990-11-13 Halliburton Company Firing head for a perforating gun assembly
US5216325A (en) * 1990-01-24 1993-06-01 Magnavox Government And Industrial Electronics Company Spark gap device with insulated trigger electrode
US5159145A (en) * 1991-08-27 1992-10-27 James V. Carisella Methods and apparatus for disarming and arming well bore explosive tools
US5301755A (en) * 1993-03-11 1994-04-12 Halliburton Company Air chamber actuator for a perforating gun
US5490563A (en) * 1994-11-22 1996-02-13 Halliburton Company Perforating gun actuator
US5513570A (en) * 1995-02-21 1996-05-07 Western Atlas International, Inc. Pressure actuated pipe cutting tool
US5587550A (en) * 1995-03-23 1996-12-24 Quantic Industries, Inc. Internally timed, multi-output impulse cartridge
US5598894A (en) * 1995-07-05 1997-02-04 Halliburton Company Select fire multiple drill string tester
US5551520A (en) * 1995-07-12 1996-09-03 Western Atlas International, Inc. Dual redundant detonating system for oil well perforators
US5603384A (en) * 1995-10-11 1997-02-18 Western Atlas International, Inc. Universal perforating gun firing head
US5775426A (en) * 1996-09-09 1998-07-07 Marathon Oil Company Apparatus and method for perforating and stimulating a subterranean formation
US5908365A (en) * 1997-02-05 1999-06-01 Preeminent Energy Services, Inc. Downhole triggering device
US5912428A (en) * 1997-06-19 1999-06-15 The Ensign-Bickford Company Electronic circuitry for timing and delay circuits
US6283208B1 (en) * 1997-09-05 2001-09-04 Schlumberger Technology Corp. Orienting tool and method
AUPP021697A0 (en) * 1997-11-06 1997-11-27 Rocktek Limited Radio detonation system
US6131516A (en) * 1998-12-08 2000-10-17 The United States Of America As Represented By The Secretary Of The Navy Air-safed underwater fuze system for launched munitions
NO319947B1 (no) * 2000-09-05 2005-10-03 Schlumberger Holdings Mikrosvitsjer for nedhulls-anvendelse
KR100616806B1 (ko) * 2001-06-06 2006-08-29 세넥스 익스플로시브즈, 인코포레이티드 개별 지연된 뇌관들로 된 발파 회로의 기폭 시스템
US8091477B2 (en) * 2001-11-27 2012-01-10 Schlumberger Technology Corporation Integrated detonators for use with explosive devices
RU2231746C2 (ru) * 2002-09-17 2004-06-27 Государственное унитарное предприятие "Федеральный научно-производственный центр "Прибор" Артиллерийский боеприпас
RU2240493C1 (ru) * 2003-08-04 2004-11-20 Федеральное государственное унитарное предприятие "Научно-исследовательский институт "Поиск" Дистанционный взрыватель снарядов реактивных систем залпового огня
RU40786U1 (ru) * 2004-06-01 2004-09-27 Государственное унитарное предприятие "Федеральный научно-производственный центр "Прибор" Устройство дистанционного подрыва
RU2275496C2 (ru) * 2004-07-22 2006-04-27 Волго-уральский центр научно-технических услуг "НЕЙТРОН" Способ и устройство для кумулятивной перфорации нефтегазовых скважин (варианты)
CN2752433Y (zh) * 2004-08-12 2006-01-18 蓬莱市石油机械厂 油井射孔自锁安全起爆装置
US7913603B2 (en) * 2005-03-01 2011-03-29 Owen Oil Tolls LP Device and methods for firing perforating guns
RU2285897C1 (ru) * 2005-04-28 2006-10-20 Общество с ограниченной ответственностью Научно-техническая фирма "Взрывтехнология" Система инициирования зарядов взрывчатых веществ

Also Published As

Publication number Publication date
BRPI0717352A2 (pt) 2014-01-21
ATE530871T1 (de) 2011-11-15
MX2009004252A (es) 2009-05-14
CN101529197A (zh) 2009-09-09
RU2439482C2 (ru) 2012-01-10
CA2667377C (en) 2014-04-01
AU2007329758A1 (en) 2008-06-12
EG26178A (ar) 2013-04-04
RU2009113598A (ru) 2010-10-20
EP2076732A2 (en) 2009-07-08
CA2667377A1 (en) 2008-06-12
WO2008070343A3 (en) 2008-12-11
US20080110612A1 (en) 2008-05-15
DK2076732T3 (da) 2011-11-21
MY147812A (en) 2013-01-31
WO2008070343A2 (en) 2008-06-12
WO2008070343A4 (en) 2009-01-22
CN101529197B (zh) 2013-04-10
EP2076732B1 (en) 2011-10-26
US7789153B2 (en) 2010-09-07
AU2007329758B2 (en) 2013-01-24

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