ROCK DRILL BIT TOOTH FOR DRILLING OF IMPERMEABLE ROCKS Russian patent published in 2014 - IPC E21B10/16 E21B10/18

Abstract RU 2517656 C2

FIELD: process engineering.

SUBSTANCE: invention relates to rock crushing equipment, particularly, to rock drill bit teeth. Drill bit bucket-shape tooth comprises flow grooves at rear side extending to tooth working edges. Said grooves make fluid channels between tooth rear side and face non-destructed rock to communicate rock destruction zone with bore hole.

EFFECT: higher efficiency of impermeable rock crushing owing to equalising hydrostatic pressure ahead of the tooth.

5 dwg

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RU 2 517 656 C2

Authors

Sinev Stanislav Vasil'Evich

Dates

2014-05-27—Published

2012-04-10—Filed