NO963009L - Shaped charge - Google Patents

Shaped charge

Info

Publication number
NO963009L
NO963009L NO963009A NO963009A NO963009L NO 963009 L NO963009 L NO 963009L NO 963009 A NO963009 A NO 963009A NO 963009 A NO963009 A NO 963009A NO 963009 L NO963009 L NO 963009L
Authority
NO
Norway
Prior art keywords
liner
linings
lining
shock
shaped charge
Prior art date
Application number
NO963009A
Other languages
Norwegian (no)
Other versions
NO963009D0 (en
Inventor
Manmohan S Chawla
Original Assignee
Western Atlas Int 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 Western Atlas Int Inc filed Critical Western Atlas Int Inc
Publication of NO963009D0 publication Critical patent/NO963009D0/en
Publication of NO963009L publication Critical patent/NO963009L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • F42B1/028—Shaped or hollow charges characterised by the form of the liner

Abstract

Formet ladning for effektiv overfor- ing av energi fra et eksplosivt materiale (12) for dannelse av en stråle, idet virk- ningen fra sjokk-refleksjonene på strålen reduseres. Den formede ladning omfatter en første foring (22) som ligger inntil det eksplosive materialet (12) og minst en annen foring (24) med et hult senter. Kombinasjonen av de to (eller flere) for- inger reduserer virkningen som sjokk- refleksjonene har på ladningen, og øker dermed strålens enhetlighet og dens mål- gjennomtrengende evne. Den første og andre foring (22,24) kan utformes som en sammen- satt foring (20,40) med minst to forings- elementer som strekker seg utover fra for- ingens topp-punkt. Flere foringer kan likeledes være plassert inntil den andre foringen på en kaskade-forbundet måte, eller det kan foreligge et gap mellom nær- : liggende foringer. Et støtabsorberende materiale kan være anbragt mellom forings- elementene for ytterligere å dempe sjokk- refleksjonene. Alternativt kan slike gap fylles med et eksplosivt materiale for å øke strålens masse. Den ene foring kan være kortere enn den andre foring for å produsere en segmentert puls i strålen.Shaped charge for efficient transfer of energy from an explosive material (12) to form a beam, reducing the effect of the shock reflections on the beam. The shaped charge comprises a first liner (22) adjacent to the explosive material (12) and at least one other liner (24) with a hollow center. The combination of the two (or more) linings reduces the impact of the shock reflections on the charge, thus increasing the uniformity of the beam and its penetrating ability. The first and second linings (22,24) can be designed as a composite lining (20.40) with at least two lining elements extending outward from the top of the lining. Several linings may also be located adjacent to the other lining in a cascade-linked manner, or there may be a gap between adjacent linings. A shock absorbing material may be disposed between the casing elements to further dampen the shock reflections. Alternatively, such gaps can be filled with an explosive material to increase the mass of the beam. One liner may be shorter than the other liner to produce a segmented pulse in the beam.

NO963009A 1995-07-27 1996-07-19 Shaped charge NO963009L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50815795A 1995-07-27 1995-07-27

Publications (2)

Publication Number Publication Date
NO963009D0 NO963009D0 (en) 1996-07-19
NO963009L true NO963009L (en) 1997-01-28

Family

ID=24021625

Family Applications (1)

Application Number Title Priority Date Filing Date
NO963009A NO963009L (en) 1995-07-27 1996-07-19 Shaped charge

Country Status (5)

Country Link
CN (1) CN1146548A (en)
CA (1) CA2182409A1 (en)
DE (1) DE19630339A1 (en)
GB (1) GB2303687A (en)
NO (1) NO963009L (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6021714A (en) * 1998-02-02 2000-02-08 Schlumberger Technology Corporation Shaped charges having reduced slug creation
US6349649B1 (en) 1998-09-14 2002-02-26 Schlumberger Technology Corp. Perforating devices for use in wells
US6460463B1 (en) 2000-02-03 2002-10-08 Schlumberger Technology Corporation Shaped recesses in explosive carrier housings that provide for improved explosive performance in a well
US20050115448A1 (en) * 2003-10-22 2005-06-02 Owen Oil Tools Lp Apparatus and method for penetrating oilbearing sandy formations, reducing skin damage and reducing hydrocarbon viscosity
GB0425203D0 (en) 2004-11-16 2004-12-15 Qinetiq Ltd Improvements in and relating to oil well perforators
EP1851500B1 (en) * 2005-02-23 2009-04-01 Armaments Corporation of South Africa Limited Shaped charge assembly and method of damaging a target
CN101836069A (en) * 2007-08-21 2010-09-15 叶夫根尼·帕夫洛维奇·格尔马诺夫 Hollow charge
US20090151589A1 (en) * 2007-12-17 2009-06-18 Schlumberger Technology Corporation Explosive shock dissipater
GB2476992B (en) * 2010-01-18 2014-12-03 Jet Physics Ltd Linear shaped charge
RU2495360C1 (en) * 2012-01-18 2013-10-10 Федеральное государственное унитарное предприятие "Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Технической Физики имени академика Е.И. Забабахина" (ФГУП "РФЯЦ-ВНИИТФ им. академ. Е.И. Забабахина") Method to generate jet stream and shaped charge of perforator for its realisation
RU2491497C1 (en) * 2012-01-30 2013-08-27 Владилен Федорович Минин Method and device for creating jet streams with elimination of hollow charge spin
RU2513337C1 (en) * 2012-12-19 2014-04-20 Юрий Константинович Краснов Lengthy cumulative charge (krasnov-charge)
CN105545261B (en) * 2015-12-28 2018-07-03 北方斯伦贝谢油田技术（西安）有限公司 The pressure break perforating bullet and its shaped charge material of a kind of oil/gas well
CN106382864B (en) * 2016-10-27 2018-08-21 北京航天长征飞行器研究所 A kind of activity composite liner loaded constitution of power-assembling containing energy
CN107314712A (en) * 2017-05-25 2017-11-03 湖北迪戈科技有限公司 A kind of novel activated device
CN107677169A (en) * 2017-11-09 2018-02-09 中国人民解放军陆军工程大学 A kind of multipurpose unexploded ordnance cumulative destroys device
US11053782B2 (en) 2018-04-06 2021-07-06 DynaEnergetics Europe GmbH Perforating gun system and method of use
US10520286B2 (en) 2018-04-06 2019-12-31 Dynaenergetics Gmbh & Co. Kg Inlay for shaped charge and method of use
US11378363B2 (en) 2018-06-11 2022-07-05 DynaEnergetics Europe GmbH Contoured liner for a rectangular slotted shaped charge
USD981345S1 (en) 2020-11-12 2023-03-21 DynaEnergetics Europe GmbH Shaped charge casing
WO2021198180A1 (en) * 2020-03-30 2021-10-07 DynaEnergetics Europe GmbH Perforating system with an embedded casing coating and erosion protection liner
CN111473701B (en) * 2020-04-10 2022-03-15 中钢集团马鞍山矿山研究总院股份有限公司 Method suitable for advanced energy-gathering cracking blasting of high-stress ore body

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL99061C (en) * 1955-06-10
NL242339A (en) * 1958-10-20
US4498367A (en) * 1982-09-30 1985-02-12 Southwest Energy Group, Ltd. Energy transfer through a multi-layer liner for shaped charges
IL69868A0 (en) * 1983-09-28 1983-12-30 Israel Defence Liners for shaped-charge warhead and method of making same
CH677530A5 (en) * 1988-11-17 1991-05-31 Eidgenoess Munitionsfab Thun
FR2655719B1 (en) * 1989-12-07 1994-05-06 Etat Francais Delegue Armement EXPLOSIVE CHARGE GENERATING MULTIPLE CORES AND / OR JETS.

Also Published As

Publication number Publication date
NO963009D0 (en) 1996-07-19
GB9615704D0 (en) 1996-09-04
CA2182409A1 (en) 1997-01-28
GB2303687A (en) 1997-02-26
CN1146548A (en) 1997-04-02
DE19630339A1 (en) 1997-01-30

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