NL74741C - - Google Patents

Info

Publication number
NL74741C
NL74741C NL74741DA NL74741C NL 74741 C NL74741 C NL 74741C NL 74741D A NL74741D A NL 74741DA NL 74741 C NL74741 C NL 74741C
Authority
NL
Netherlands
Application number
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.)
Publication of NL74741C publication Critical patent/NL74741C/xx

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D5/00—Safety arrangements
    • F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
    • F42D5/045—Detonation-wave absorbing or damping means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D5/00—Safety arrangements
    • F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
    • F42D5/055—Silencing means for blasting operations

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Revetment (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Woven Fabrics (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
NL74741D 1950-03-17 NL74741C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR692741X 1950-03-17

Publications (1)

Publication Number Publication Date
NL74741C true NL74741C (en)

Family

ID=9038853

Family Applications (2)

Application Number Title Priority Date Filing Date
NL6810578.A NL159675B (en) 1950-03-17 PROCEDURE FOR PREPARING 3-METHOXY-1,3,5 (10), 6,8-OESTRAPENTAEEN-17-ON.
NL74741D NL74741C (en) 1950-03-17

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL6810578.A NL159675B (en) 1950-03-17 PROCEDURE FOR PREPARING 3-METHOXY-1,3,5 (10), 6,8-OESTRAPENTAEEN-17-ON.

Country Status (4)

Country Link
US (1) US2792783A (en)
DE (1) DE854184C (en)
GB (1) GB692741A (en)
NL (2) NL74741C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873676A (en) * 1953-08-31 1959-02-17 Welex Inc Multiple shaped charge assembly
US3491694A (en) * 1954-06-08 1970-01-27 Us Navy Plastic liners for controlled fragmentation
US3021784A (en) * 1955-09-21 1962-02-20 Borg Warner Shaped charge unit for well perforators
US2980018A (en) * 1956-01-03 1961-04-18 Borg Warner Well perforator shaped charge
DE1044738B (en) * 1957-02-07 1958-11-27 Dresser Ind Shaped shaped charge for perforating the casing of a deep borehole
US3221655A (en) * 1963-06-26 1965-12-07 Dresser Ind Selective shaped charge gun
US7237487B2 (en) * 2004-04-08 2007-07-03 Baker Hughes Incorporated Low debris perforating gun system for oriented perforating

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2357068A (en) * 1941-04-18 1944-08-29 Hercules Powder Co Ltd Blasting cartridge
US2415814A (en) * 1943-11-15 1947-02-18 Du Pont Cable cutting method and device
US2499440A (en) * 1945-01-27 1950-03-07 Denver Fire Clay Company Sheath for explosives
US2494256A (en) * 1945-09-11 1950-01-10 Gulf Research Development Co Apparatus for perforating well casings and well walls
US2630182A (en) * 1947-02-19 1953-03-03 Seismograph Service Corp Method for shooting oil wells
US2649046A (en) * 1947-05-01 1953-08-18 Du Pont Explosive package
US2629325A (en) * 1950-05-20 1953-02-24 William G Sweetman Jet type perforating unit

Also Published As

Publication number Publication date
DE854184C (en) 1952-10-30
GB692741A (en) 1953-06-10
NL159675B (en)
US2792783A (en) 1957-05-21

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