METHOD FOR DETERMINATION OF SERVICEABILITY OF ROCK CUTTING TOOL Russian patent published in 1995 - IPC

Abstract RU 2029049 C1

FIELD: drilling wells for gas and oil. SUBSTANCE: method for determination of serviceability of rock cutting tool includes particle-size analysis of drilled rock. In course of well drilling, pressure gradient variation in hydraulic cyclone is measured and angle of inclination of pressure gradient curve to abscissa axis is determined. Reference values of inclination angle of pressure gradient curve to abscissa axis are established for limit wear of cutting tool and their values are compared with current values of this parameter up to moment of lifting of cutting tool. EFFECT: higher efficiency. 1 dwg

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RU 2 029 049 C1

Authors

Jamaliev V.U.

Ishemguzhin E.I.

Brot A.R.

Jamaliev I.U.

Vakhitov R.N.

Dates

1995-02-20—Published

1990-05-21—Filed