Triangular oil well drill bit for use in unconsolidated formatio

Details Triangular oil well drill bit for use in unconsolidated formatio Triangular oil well drill bit for use in unconsolidated formatio

1987-07-24

1989-04-11

Dang, Hoang C.

Boring or penetrating the earth

Bit or bit element

Bit with leading portion forming smaller diameter initial bore

175393, E21B 1026

Patent

active

048197475

ABSTRACT:
A drill bit for use in unconsolidated formations includes a generally triangular cross-section that tapers toward the lower tip end of the tool. The vertices of the triangular cross-section carry blade members that cut and define the size of the bore hole. Nozzles positioned between the blades and upon the tapered portion of the tool break up unconsolidated formation material that has been cut.

REFERENCES:
patent: 3043384 (1962-07-01), Gault et al.
patent: 3145790 (1964-08-01), Bridwell et al.
patent: 4515227 (1985-05-01), Cerkovnik
patent: 4683965 (1987-08-01), Walton et al.
patent: 4733734 (1988-03-01), Bardin et al.

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