Diamond cutting element

Details Diamond cutting element Diamond cutting element

1987-03-17

1989-08-01

Dang, Hoang C.

Boring or penetrating the earth

Bit or bit element

Magnetized or with magnet

175393, 175410, E21B 1046, E21B 1060

Patent

active

048526711

ABSTRACT:
A rotary drill bit contains a plurality of cutting elements. Each cutting element includes a stud and a cutting disk mounted on the stud. The cutting disk comprises a substrate and a diamond layer bonded to the substrate. The cutting disk comprises a relief formed in an outer peripheral edge of the substrate and diamond layer at a formation-contacting point of the diamond layer, to form a pair of cutting points separated by the relief. The stud includes a channel aligned with the relief for conducting fluid to the relief to cool and clean the cutting points. The stud may include a fluid passage for conducting drilling fluid directly to the channel.

REFERENCES:
patent: 1756450 (1930-04-01), Black
patent: 1899458 (1933-02-01), Erickson
patent: 1923488 (1933-08-01), Howard et al.
patent: 4221270 (1980-09-01), Vezirian
patent: 4303136 (1981-12-01), Ball
patent: 4452324 (1984-06-01), Jurgens
patent: 4499958 (1985-02-01), Radtke et al.
patent: 4515002 (1985-05-01), Groethe
patent: 4606418 (1986-08-01), Thompson

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