GB883664A - Improvements in shaped charges used for the perforation of bore-hole casing - Google Patents

Improvements in shaped charges used for the perforation of bore-hole casing

Info

Publication number
GB883664A
GB883664A GB7317/58A GB731758A GB883664A GB 883664 A GB883664 A GB 883664A GB 7317/58 A GB7317/58 A GB 7317/58A GB 731758 A GB731758 A GB 731758A GB 883664 A GB883664 A GB 883664A
Authority
GB
United Kingdom
Prior art keywords
degrees
liner
charge
perforation
bore
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
GB7317/58A
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.)
Services Petroliers Schlumberger SA
Original Assignee
Societe de Prospection Electrique Schlumberger SA
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 Societe de Prospection Electrique Schlumberger SA filed Critical Societe de Prospection Electrique Schlumberger SA
Publication of GB883664A publication Critical patent/GB883664A/en
Expired legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0042—Reinforcements made of synthetic materials
    • 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

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)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

883,664. Blasting charges. SOC. DE PROSPECTION ELECTRIQUE PROCEDES SCHLUMBERGER. March 6, 1958 [April 1, 1957], No. 7317/58. Class 9(1). A shaped charge for use in perforating well casings comprises a housing 7 having an axial opening 8 to receive ignition means (not shown) and containing an explosive charge 9 provided with a metal liner 10. The shape of the liner 10 is that of a surface of revolution generated by rotating an inflected curve about the axis of the charge. The slope α of the generating line relative to the axis near the inner end of the liner is preferably between 10 degrees and 30 degrees and the slope # at the base of the liner is between 10 degrees and 40 degrees. Preferably the radii of curvature r 1 , r 2 on opposite sides of the point of inflexion are between 0.2 D and 0.5 D, where D is the maximum diameter of the charge.
GB7317/58A 1957-04-01 1958-03-06 Improvements in shaped charges used for the perforation of bore-hole casing Expired GB883664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1170520T 1957-04-01

Publications (1)

Publication Number Publication Date
GB883664A true GB883664A (en) 1961-12-06

Family

ID=9657104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7317/58A Expired GB883664A (en) 1957-04-01 1958-03-06 Improvements in shaped charges used for the perforation of bore-hole casing

Country Status (6)

Country Link
US (1) US3014424A (en)
BE (1) BE565361A (en)
CH (1) CH345828A (en)
DE (1) DE1068645B (en)
FR (1) FR1170520A (en)
GB (1) GB883664A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4481886A (en) * 1982-01-15 1984-11-13 Aktiebolaget Bofors Hollow charge
GB2163535A (en) * 1984-08-21 1986-02-26 Serat Hollow charges
GB2342144A (en) * 1998-09-30 2000-04-05 Western Atlas Int Inc Shaped charges

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410244A1 (en) * 1977-11-25 1979-06-22 Serat Hollow charge with special shell lining - is pointed and has varying thickness to give desired mathematical ratios for high performance
US9103636B1 (en) * 2012-11-30 2015-08-11 Raytheon Company Penetrating warhead and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1022472A (en) * 1950-07-25 1953-03-05 Soc Tech De Rech Ind Improvements to shaped charges for explosive devices
US2782715A (en) * 1951-10-05 1957-02-26 Borg Warner Well perforator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4481886A (en) * 1982-01-15 1984-11-13 Aktiebolaget Bofors Hollow charge
GB2163535A (en) * 1984-08-21 1986-02-26 Serat Hollow charges
GB2342144A (en) * 1998-09-30 2000-04-05 Western Atlas Int Inc Shaped charges
GB2342144B (en) * 1998-09-30 2004-01-07 Western Atlas Int Inc Shaped charges

Also Published As

Publication number Publication date
US3014424A (en) 1961-12-26
DE1068645B (en) 1959-11-12
BE565361A (en)
FR1170520A (en) 1959-01-15
CH345828A (en) 1960-04-15

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