NL7101188A - Diamond drilling bit - with helical cutting edge - Google Patents

Diamond drilling bit - with helical cutting edge

Info

Publication number
NL7101188A
NL7101188A NL7101188A NL7101188A NL7101188A NL 7101188 A NL7101188 A NL 7101188A NL 7101188 A NL7101188 A NL 7101188A NL 7101188 A NL7101188 A NL 7101188A NL 7101188 A NL7101188 A NL 7101188A
Authority
NL
Netherlands
Prior art keywords
diamond
cutting edge
drilling bit
helical cutting
cutting
Prior art date
Application number
NL7101188A
Other versions
NL167495B (en
NL167495C (en
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 filed Critical
Priority to NL7101188A priority Critical patent/NL167495C/en
Publication of NL7101188A publication Critical patent/NL7101188A/en
Publication of NL167495B publication Critical patent/NL167495B/en
Application granted granted Critical
Publication of NL167495C publication Critical patent/NL167495C/en

Links

Classifications

    • 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

Abstract

Each diamond is arranged in the side wall of the chisel body for cutting the side wall of the borehole so that it has a blunt edge in the radial direction relative to the central shaft of the diamond bit and has a cutting edge aligned tangential with respect to a helix running through the cutting point of the diamond with its central axis coinciding with that of the diamond bit, the tangential direction being taken by the cutting point of the relevant diamond.
NL7101188A 1971-01-29 1971-01-29 DIAMOND CHISEL. NL167495C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7101188A NL167495C (en) 1971-01-29 1971-01-29 DIAMOND CHISEL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7101188A NL167495C (en) 1971-01-29 1971-01-29 DIAMOND CHISEL.

Publications (3)

Publication Number Publication Date
NL7101188A true NL7101188A (en) 1972-08-01
NL167495B NL167495B (en) 1981-07-16
NL167495C NL167495C (en) 1981-12-16

Family

ID=19812362

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7101188A NL167495C (en) 1971-01-29 1971-01-29 DIAMOND CHISEL.

Country Status (1)

Country Link
NL (1) NL167495C (en)

Also Published As

Publication number Publication date
NL167495B (en) 1981-07-16
NL167495C (en) 1981-12-16

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Legal Events

Date Code Title Description
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

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