DRILL BIT ROLLER CUTTER Russian patent published in 1994 - IPC

Abstract RU 2019667 C1

FIELD: well drilling. SUBSTANCE: connectors are inclined towards generators of cones of roller cutter at acute angle. For drill bit with central flushing, inclination is directed to side of rotation of roller cutter. For drill bit with side flushing, connectors are inclined to side opposite to roller cutter rotation. EFFECT: higher efficiency. 3 cl, 4 dwg

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RU 2 019 667 C1

Authors

Вogomolov R.М.

Вabichev А.А.

Рalashchenko Ju.А.

Dates

1994-09-15—Published

1990-11-21—Filed