BR7701800A - DRILL DRILLING FOR GROUND DRILLING - Google Patents

DRILL DRILLING FOR GROUND DRILLING

Info

Publication number
BR7701800A
BR7701800A BR7701800A BR7701800A BR7701800A BR 7701800 A BR7701800 A BR 7701800A BR 7701800 A BR7701800 A BR 7701800A BR 7701800 A BR7701800 A BR 7701800A BR 7701800 A BR7701800 A BR 7701800A
Authority
BR
Brazil
Prior art keywords
drilling
drill
ground
ground drilling
drill drilling
Prior art date
Application number
BR7701800A
Other languages
Portuguese (pt)
Inventor
S Scales
H Dill
Original Assignee
Hughes Tool Co
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 Hughes Tool Co filed Critical Hughes Tool Co
Publication of BR7701800A publication Critical patent/BR7701800A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
BR7701800A 1976-08-30 1977-03-24 DRILL DRILLING FOR GROUND DRILLING BR7701800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71899576A 1976-08-30 1976-08-30

Publications (1)

Publication Number Publication Date
BR7701800A true BR7701800A (en) 1978-05-09

Family

ID=24888388

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7701800A BR7701800A (en) 1976-08-30 1977-03-24 DRILL DRILLING FOR GROUND DRILLING

Country Status (4)

Country Link
BR (1) BR7701800A (en)
FR (1) FR2362992A1 (en)
IT (1) IT1085149B (en)
SE (1) SE7703898L (en)

Also Published As

Publication number Publication date
IT1085149B (en) 1985-05-28
FR2362992A1 (en) 1978-03-24
SE7703898L (en) 1978-03-01

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