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2 190 742

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Application

2001103162/03, 2001-02-02

(24)

Start date

2001-02-02

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Actual filing date

2001-02-02

(45)

Published

2002-10-10

(72)

Inventor

Shamshin V.N.Isakov V.S.Chukhrjaev N.P.Ustinov A.A.Artemova V.I.Chukhrjaeva N.A.Chernobrovkin G.Ja.

(73)

Holder

Juzhno-Rossijskij Gosudarstvennyj Tekhnicheskij Universitet Politekhnicheskij Institut)

PROCESS OF HOLE DRILLING IN SOFT ROCK Russian patent published in 2002 - IPC

Abstract RU 2190742 C1

FIELD: hole drilling in soft rock by auger. SUBSTANCE: process includes rotation of auger with cutting tool and its forced feed into bottom hole with subsequent control over rate of feed of auger in process of drilling by change of operational parameters. Drilling is conducted with specified rate of feed Vf m/s. Value of rate of feed is found prior to start of drilling operation by formula, given in the description of invention. EFFECT: enhanced efficiency of drilling of holes in soft rock thanks to prevention of jamming of auger.

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RU 2 190 742 C1

Authors

Shamshin V.N.

Isakov V.S.

Chukhrjaev N.P.

Ustinov A.A.

Artemova V.I.

Chukhrjaeva N.A.

Chernobrovkin G.Ja.

Dates

2002-10-10—Published

2001-02-02—Filed

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