Cutter bit for use in drilling operations

Details Cutter bit for use in drilling operations Cutter bit for use in drilling operations

1993-12-03

1995-10-31

Britts, Ramon S.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

175393, E21B 1018

Patent

active

054621283

ABSTRACT:
Disclosed is a cutter bit (1) for use in drilling operations comprising a body (10) having a top portion (11) and a bottom portion (12), the bottom portion (12) being provided with cutting elements for cutting a formation to which the cutting elements is exposed. Within an outer circumference (13) of the bottom portion (12) of the body (10) there is provided an opening (14) to a first passage (15) through the body (10) to communicate a first zone (20) of a hole located below the bottom portion (12) of the body (10) with a second zone of the hole located above the bottom portion (12) of the body (10).

REFERENCES:
patent: 2692117 (1954-10-01), Kucera et al.
patent: 3099324 (1963-07-01), Kucera et al.
patent: 3111179 (1963-11-01), Albers et al.
patent: 4189014 (1980-02-01), Allen et al.
patent: 4368787 (1983-01-01), Messenger
patent: 4711312 (1987-12-01), Leibee et al.
patent: 5145017 (1992-09-01), Holster et al.
patent: 5220966 (1993-06-01), Awdujewski et al.
patent: 5297643 (1994-03-01), Montgomery, Jr. et al.

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