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2 164 581

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IPC

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Application

99111353/03, 1999-05-31

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Start date

1999-05-31

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Actual filing date

1999-05-31

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Published

2001-03-27

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Inventor

Krylov G.V.Shtol' V.F.Sekhniashvili V.A.Vjakhirev V.I.Ippolitov V.V.Podshibjakin V.V.Sevodin N.M.Gritsanenko M.F.Turshiev A.P.Shesterikov M.N.

(73)

Holder

Tjumenskij Nauchno-Issledovatel'Skij I Proektnyj Institut Prirodnogo Gaza I Gazovykh Tekhnologij

TURBO-DRILL Russian patent published in 2001 - IPC

Abstract RU 2164581 C2

FIELD: drilling equipment. SUBSTANCE: given turbo-drill includes turbine sections housing stage of power device and stages of hydrodynamic brake . Number of above-mentioned stages is found proceeding from specified parameters of drilling condition by proposed mathematical dependencies. EFFECT: raised efficiency of hole drilling. 1 dwg

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RU 2 164 581 C2

Authors

Krylov G.V.

Shtol' V.F.

Sekhniashvili V.A.

Vjakhirev V.I.

Ippolitov V.V.

Podshibjakin V.V.

Sevodin N.M.

Gritsanenko M.F.

Turshiev A.P.

Shesterikov M.N.

Dates

2001-03-27—Published

1999-05-31—Filed

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