US2849953A - Shaped charges adapted for use inside well casings - Google Patents

Shaped charges adapted for use inside well casings Download PDF

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Publication number
US2849953A
US2849953A US224520A US22452051A US2849953A US 2849953 A US2849953 A US 2849953A US 224520 A US224520 A US 224520A US 22452051 A US22452051 A US 22452051A US 2849953 A US2849953 A US 2849953A
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US
United States
Prior art keywords
shaped charges
use inside
well casings
charge
inside well
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 - Lifetime
Application number
US224520A
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English (en)
Inventor
Delacour Jacques
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.)
Borg Warner Corp
Original Assignee
Borg Warner Corp
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 Borg Warner Corp filed Critical Borg Warner Corp
Application granted granted Critical
Publication of US2849953A publication Critical patent/US2849953A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F42B1/024—Shaped or hollow charges provided with embedded bodies of inert material
    • 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
    • F42B3/08—Blasting cartridges, i.e. case and explosive with cavities in the charge, e.g. hollow-charge blasting cartridges

Definitions

  • the charges used at the present time include generally speaking in their front part a conical liner made of a metal such as copper or steel that closes the chamber, whether empty or filled with material that is located to the front of the actual charge.
  • a conical liner made of a metal such as copper or steel that closes the chamber, whether empty or filled with material that is located to the front of the actual charge.
  • My invention has for its object to cut out this drawback.
  • it consists in locating inside the cone a cellular substance such as hard rubber in sponge form. Under such conditions, it has been found that the metal block assumes a smaller size than the blocks formed in usual practice and that it was driven home into the target without closing the opening obtained by the explosion of the charge.
  • FIG. 1 designates the cylindrical body of the perforator inside which are located in superposed parallel planes different hollow or shaped charges, only one of which has been illustrated.
  • the arrangement of the charge may be in particular of the type disclosed in the copending application, Serial No. 128,950, dated November 23, 1949, now Patent No. 2,764,937, dated October 2, 1956, that has been assigned to the Socit de Prospection Electrique, Procds Schlumberger, who is also assignor of the present application.
  • the perforator Patented Sept. 2, 1958 1 comprises a hollow cylindrical pressure resistant housing closed at top and bottom by tightly fitting caps.
  • the shaped charge is contained inside two elements, to Wit: an inner frusto-conical element 2 forming the cover and the outer element 3 forming a sheath for the cover and assuming a corresponding shape.
  • the small end of said sheath includes a cylindrical rear extension adapted to carry the priming charge 5 inside which passes the fuse 6 that is fitted inside a slot of the sheath 3.
  • the corresponding end of the outer sheath 3 is housed inside a recess 7 provided to this purpose in the rear wall of the perforator body 1.
  • the front end of the sheath 3 engages an opening 8 provided similarly to this purpose through the wall of the cylindrical body 1, which opening is closed by the threaded plug 9 adapted to be perforated at the moment of the explosion of the charge, as well known per se.
  • 10 designates the conical liner located to the front of the charge.
  • a hollow, watertight pressure resistant container adapted to be lowered into the well and having at least one opening formed in the side wall thereof, watertight and pressure resistant closure means for said opening, a shaped explosive charge supported in said container and having a forward hollowed out portion facing said opening and lined with a metallic liner, and a mass of hard cellular substance disposed in said container in front of said liner for reducing the size of the metal block formed from part of the material of said liner when said charge is detonated.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Catching Or Destruction (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Dowels (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
US224520A 1950-05-11 1951-05-04 Shaped charges adapted for use inside well casings Expired - Lifetime US2849953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR857331X 1950-05-11

Publications (1)

Publication Number Publication Date
US2849953A true US2849953A (en) 1958-09-02

Family

ID=9329400

Family Applications (1)

Application Number Title Priority Date Filing Date
US224520A Expired - Lifetime US2849953A (en) 1950-05-11 1951-05-04 Shaped charges adapted for use inside well casings

Country Status (5)

Country Link
US (1) US2849953A (nl)
DE (2) DE857331C (nl)
FR (2) FR1022868A (nl)
GB (2) GB711801A (nl)
NL (2) NL161067B (nl)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106130A (en) * 1958-08-28 1963-10-08 Schlumberger Well Surv Corp Perforating apparatus
US3248072A (en) * 1964-04-01 1966-04-26 Mcdonnell Aircraft Corp Underwater explosive effects attenuator
US3282354A (en) * 1962-04-26 1966-11-01 Harrison Jet Guns Ltd Protective shaped charge
US5151558A (en) * 1990-09-21 1992-09-29 Diehl Gmbh & Co. Ammunition possessing a supporting member constituted from a foam material
US6497285B2 (en) * 2001-03-21 2002-12-24 Halliburton Energy Services, Inc. Low debris shaped charge perforating apparatus and method for use of same
US6606950B1 (en) * 2001-07-24 2003-08-19 Charles Ray Putman Method and apparatus for positioning a shaped charge
US20060075889A1 (en) * 2004-10-08 2006-04-13 Walker Jerry L Debris retention perforating apparatus and method for use of same
US20080121095A1 (en) * 2006-08-29 2008-05-29 Schlumberger Technology Corporation Loading Tube For Shaped Charges

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784786A (en) * 1953-06-26 1957-03-12 California Research Corp Formation testing apparatus
US3021784A (en) * 1955-09-21 1962-02-20 Borg Warner Shaped charge unit for well perforators
DE974557C (de) * 1956-07-27 1961-02-09 Wasagchemie Ag Verfahren zur Lenkung und Verstaerkung der Wirkung von Sprengkoerpern
DE3900269C2 (de) * 1989-01-07 1998-02-26 Rheinmetall Ind Ag Gefechtskopf

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB573078A (en) * 1942-10-05 1945-11-06 Bath And Portland Stone Firms Improvements in or relating to bombs, mortar-shells, rifle grenades, anti-tank shells, torpedoes and the like
GB622062A (en) * 1946-03-09 1949-04-26 D Entpr Et De Mecanique Soc In Improvements in blasting devices
US2494256A (en) * 1945-09-11 1950-01-10 Gulf Research Development Co Apparatus for perforating well casings and well walls

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB573078A (en) * 1942-10-05 1945-11-06 Bath And Portland Stone Firms Improvements in or relating to bombs, mortar-shells, rifle grenades, anti-tank shells, torpedoes and the like
US2494256A (en) * 1945-09-11 1950-01-10 Gulf Research Development Co Apparatus for perforating well casings and well walls
GB622062A (en) * 1946-03-09 1949-04-26 D Entpr Et De Mecanique Soc In Improvements in blasting devices

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106130A (en) * 1958-08-28 1963-10-08 Schlumberger Well Surv Corp Perforating apparatus
US3282354A (en) * 1962-04-26 1966-11-01 Harrison Jet Guns Ltd Protective shaped charge
US3248072A (en) * 1964-04-01 1966-04-26 Mcdonnell Aircraft Corp Underwater explosive effects attenuator
US5151558A (en) * 1990-09-21 1992-09-29 Diehl Gmbh & Co. Ammunition possessing a supporting member constituted from a foam material
US6497285B2 (en) * 2001-03-21 2002-12-24 Halliburton Energy Services, Inc. Low debris shaped charge perforating apparatus and method for use of same
US6606950B1 (en) * 2001-07-24 2003-08-19 Charles Ray Putman Method and apparatus for positioning a shaped charge
US20060075889A1 (en) * 2004-10-08 2006-04-13 Walker Jerry L Debris retention perforating apparatus and method for use of same
US7430965B2 (en) 2004-10-08 2008-10-07 Halliburton Energy Services, Inc. Debris retention perforating apparatus and method for use of same
US20090050323A1 (en) * 2004-10-08 2009-02-26 Walker Jerry L Method for Retaining Debris in a Perforating Apparatus
US7621342B2 (en) 2004-10-08 2009-11-24 Halliburton Energy Services, Inc. Method for retaining debris in a perforating apparatus
US20080121095A1 (en) * 2006-08-29 2008-05-29 Schlumberger Technology Corporation Loading Tube For Shaped Charges
US7942098B2 (en) 2006-08-29 2011-05-17 Schlumberger Technology Corporation Loading tube for shaped charges

Also Published As

Publication number Publication date
GB694144A (en) 1953-07-15
FR1022868A (fr) 1953-03-11
NL161067B (nl)
GB711801A (en) 1954-07-14
NL78744C (nl)
DE852386C (de) 1952-10-13
FR1022867A (fr) 1953-03-11
DE857331C (de) 1952-11-27

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