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2 029 046

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C1

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IPC

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Application

4921988/03, 1991-03-27

(22)

Actual filing date

1991-03-27

(45)

Published

1995-02-20

(72)

Inventor

Ospanov Zh.K.Dzhulamanov B.Zh.Ibrashev K.N.Oksner V.A.Liberman V.I.Zakharov V.V.

(73)

Holder

Vsesojuznyj Nauchno-Issledovatel'Skij Institut Burovoj Tekhniki

DEVICE FOR WELL DRILLING Russian patent published in 1995 - IPC

Abstract RU 2029046 C1

FIELD: well drilling for oil and gas. SUBSTANCE: device for well drilling has hydraulic motor with turbine and spindle sections. Spindle section has pump unit with pump impeller mounted on shaft end. Return channels are installed in body. Attached to shaft end is ejector nozzle. Body through sub is threaded with drill bit. Body of spindle section above return channels have holes. Space between nozzle and bit form diffuser chamber. EFFECT: higher efficiency. 1 dwg

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RU 2 029 046 C1

Authors

Ospanov Zh.K.

Dzhulamanov B.Zh.

Ibrashev K.N.

Oksner V.A.

Liberman V.I.

Zakharov V.V.

Dates

1995-02-20—Published

1991-03-27—Filed

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