GB854043A - Explosives - Google Patents

Explosives

Info

Publication number
GB854043A
GB854043A GB39248/58A GB3924858A GB854043A GB 854043 A GB854043 A GB 854043A GB 39248/58 A GB39248/58 A GB 39248/58A GB 3924858 A GB3924858 A GB 3924858A GB 854043 A GB854043 A GB 854043A
Authority
GB
United Kingdom
Prior art keywords
spheres
liner
mould
metal
charge
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.)
Expired
Application number
GB39248/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jet Research Center Inc
Original Assignee
Jet Research Center 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 Jet Research Center Inc filed Critical Jet Research Center Inc
Publication of GB854043A publication Critical patent/GB854043A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21B43/117—Shaped-charge perforators
    • 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
    • F42B1/032—Shaped or hollow charges characterised by the material of the liner

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Ceramic Products (AREA)

Abstract

854,043. Perforating devices. JET RESEARCH CENTER Inc. Dec. 5, 1958 [July 14, 1958], No. 39248/58. Class 9(1). A shaped charge-unit for well-perforating is provided with a liner 21 comprising a multiplicity of small metal spheres joined together at contacting surfaces to provide a porous structure. The unit has a casing 10, which may be a zinc alloy die-casting, covered by a flexible rubber jacket 16. Within the casing 10 is a high explosive charge 20 such as desensitized RDX, in contact with a booster charge 19, such as pure RDX or tetryl, in a cup 17 which communicates with a transverse bore 15 to receive a detonating fuze. The liner 21 is cup-shaped and may have a central boss 26 extending into the explosive, the thickness of the liner increasing gradually from the rim 23 to the boss 26. To make the liner, metal spheres are introduced into a cavity 31 in a two-part mould, Fig. 4, the mould being vibrated during filling. When filled, the mould is placed in a furnace and brought to a temperature at which the spheres weld together due to softening of the spheres or a thin coating covering them. The spheres may be copper and have a diameter of 5 microns. They may have a coating of tin, the ratio of the weights of tin to copper being 5 to 95. The liner may have an outer layer of continuous metal to which the spheres adhere, the metal layer being placed in the mould before closing the two sections together. Specification 785,155 is referred to.
GB39248/58A 1958-07-14 1958-12-05 Explosives Expired GB854043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US748379A US3077834A (en) 1958-07-14 1958-07-14 Lined shaped explosive charge and liner therefor

Publications (1)

Publication Number Publication Date
GB854043A true GB854043A (en) 1960-11-16

Family

ID=25009224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39248/58A Expired GB854043A (en) 1958-07-14 1958-12-05 Explosives

Country Status (4)

Country Link
US (1) US3077834A (en)
FR (1) FR1239933A (en)
GB (1) GB854043A (en)
NL (2) NL103979C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257497A (en) * 1982-07-22 1993-01-13 Secr Defence Shaped charge liner
GB2298910A (en) * 1986-08-22 1996-09-18 Fraunhofer Ges Forschung Explosively generated projectiles
GB2333825A (en) * 1998-02-02 1999-08-04 Schlumberger Ltd Shaped charge
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

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1549158A (en) * 1964-03-03 1968-12-13
US3388663A (en) * 1964-04-30 1968-06-18 Pollard Mabel Shaped charge liners
US3269467A (en) * 1964-06-11 1966-08-30 Schlumberger Well Surv Corp Shaped charge apparatus
US3268016A (en) * 1964-06-11 1966-08-23 Schlumberger Well Surv Corp Shaped charge apparatus
CH475543A (en) * 1966-04-20 1969-07-15 Diehl Fa Shaped charge for land mines
FR2522805B1 (en) * 1978-06-20 1985-11-15 Saint Louis Inst EXPLOSIVE HOLLOW FILLER WITH METAL COATING AND METHOD FOR THE PRODUCTION THEREOF
FR2530800B1 (en) * 1980-06-18 1986-06-13 Saint Louis Inst HOLLOW LOAD
US4592790A (en) * 1981-02-20 1986-06-03 Globus Alfred R Method of making particulate uranium for shaped charge liners
US4498367A (en) * 1982-09-30 1985-02-12 Southwest Energy Group, Ltd. Energy transfer through a multi-layer liner for shaped charges
US5320044A (en) * 1985-06-17 1994-06-14 The United States Of America As Represented By The Secretary Of The Army Three radii shaped charge liner
DE3529405C1 (en) * 1985-08-16 1996-05-09 Rheinmetall Ind Gmbh Inlay for explosive warhead
US4766813A (en) * 1986-12-29 1988-08-30 Olin Corporation Metal shaped charge liner with isotropic coating
US4794990A (en) * 1987-01-06 1989-01-03 Jet Research Center, Inc. Corrosion protected shaped charge and method
DE3722024A1 (en) * 1987-07-03 1989-01-12 Rheinmetall Gmbh INSERT FOR A HEAD OF WAR
US4958569B1 (en) * 1990-03-26 1997-11-04 Olin Corp Wrought copper alloy-shaped charge liner
US5098487A (en) * 1990-11-28 1992-03-24 Olin Corporation Copper alloys for shaped charge liners
US5251561A (en) * 1992-06-11 1993-10-12 The United States Of America As Represented By The United States Department Of Energy Open apex shaped charge-type explosive device having special disc means with slide surface thereon to influence movement of open apex shaped charge liner during collapse of same during detonation
GB9225589D0 (en) * 1992-12-08 2003-04-16 Royal Ordnance Plc Improvements in or relating to general purpose bombs
US5598891A (en) * 1994-08-04 1997-02-04 Marathon Oil Company Apparatus and method for perforating and fracturing
USD378847S (en) * 1995-04-03 1997-04-15 Dyno Wesfarmers Limited Shaped charge cover
USD385326S (en) * 1995-04-03 1997-10-21 Dyno Nobel Asia Pacific Limited Base and liner for shaped charge
US6012392A (en) * 1997-05-10 2000-01-11 Arrow Metals Division Of Reliance Steel And Aluminum Co. Shaped charge liner and method of manufacture
US7011027B2 (en) 2000-05-20 2006-03-14 Baker Hughes, Incorporated Coated metal particles to enhance oil field shaped charge performance
US8459186B2 (en) * 2008-03-19 2013-06-11 Owen Oil Tools Lp Devices and methods for perforating a wellbore
US8505454B2 (en) * 2009-12-28 2013-08-13 Schlumberger Technology Corporation Electromagnetic formed shaped charge liners
US9862027B1 (en) 2017-01-12 2018-01-09 Dynaenergetics Gmbh & Co. Kg Shaped charge liner, method of making same, and shaped charge incorporating same
CN110770530A (en) * 2017-06-23 2020-02-07 德国德力能有限公司 Shaped charge liner, method of making same, and shaped charges containing same
WO2019052927A1 (en) 2017-09-14 2019-03-21 Dynaenergetics Gmbh & Co. Kg Shaped charge liner, shaped charge for high temperature wellbore operations and method of perforating a wellbore using same
BR112020009904A2 (en) 2017-11-29 2020-10-13 DynaEnergetics Europe GmbH molded load closure element, molded load with encapsulated slot and exposed drill barrel system
WO2019238410A1 (en) 2018-06-11 2019-12-19 Dynaenergetics Gmbh & Co. Kg Contoured liner for a rectangular slotted shaped charge
US11209255B1 (en) * 2019-09-10 2021-12-28 The United States Of America As Represented By The Secretary Of The Army Press load process for warheads
USD981345S1 (en) 2020-11-12 2023-03-21 DynaEnergetics Europe GmbH Shaped charge casing

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB574132A (en) * 1942-06-12 1945-12-21 Lewis Motley Improvements in or relating to military land mines
US2605703A (en) * 1944-07-06 1952-08-05 Du Pont Liner for hollow charges
FR980903A (en) * 1948-06-05 1951-05-21 Du Pont Explosive
US2629325A (en) * 1950-05-20 1953-02-24 William G Sweetman Jet type perforating unit
US2667386A (en) * 1951-08-27 1954-01-26 Mathisen Arne Lars Traction chain shoe
FR1045539A (en) * 1951-11-28 1953-11-26 Soc Tech De Rech Ind Improvements to shaped charge coatings
US2796833A (en) * 1952-05-10 1957-06-25 William G Sweetman Perforating devices

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257497A (en) * 1982-07-22 1993-01-13 Secr Defence Shaped charge liner
GB2257497B (en) * 1982-07-22 1993-10-06 Secr Defence Shaped charges and their manufacture
GB2298910A (en) * 1986-08-22 1996-09-18 Fraunhofer Ges Forschung Explosively generated projectiles
GB2298910B (en) * 1986-08-22 1997-06-11 Fraunhofer Ges Forschung A device for producing explosively generated projectiles
GB2333825A (en) * 1998-02-02 1999-08-04 Schlumberger Ltd Shaped charge
US6021714A (en) * 1998-02-02 2000-02-08 Schlumberger Technology Corporation Shaped charges having reduced slug creation
GB2333825B (en) * 1998-02-02 2000-04-05 Schlumberger Ltd 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
US6523474B2 (en) 2000-02-03 2003-02-25 Schlumberger Technology Corporation Shaped recesses in explosive carrier housings that provide for improved explosive performance

Also Published As

Publication number Publication date
FR1239933A (en) 1960-09-02
US3077834A (en) 1963-02-19
NL255689A (en)
NL103979C (en)

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