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Application

2000105920/03, 2000-03-10

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Start date

2000-03-10

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Actual filing date

2000-03-10

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Published

2001-06-10

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Inventor

Chistjakov V.K.Talalaj P.G.Stepanov V.I.

(73)

Holder

Sankt-Peterburgskij Gosudarstvennyj Gornyj Institut Im. G.V. Plekhanova Universitet)

WASHING FLUID FOR DRILLING HOLES IN ICE DEPOSITS Russian patent published in 2001 - IPC

Abstract RU 2168532 C1

FIELD: well-boring technology. SUBSTANCE: invention relates to drilling deep holes in low- temperature ice deposits, in particular to washing fluids used when exposing subglacial deposits. Washing fluid consists of base (56-94%) and fluorotrichloromethane (6-44%) as weightening agent. The former, in particular, is organosilicon liquid. EFFECT: improved density characteristics and reduced viscosity. 2 tbl

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RU 2 168 532 C1

Authors

Chistjakov V.K.

Talalaj P.G.

Stepanov V.I.

Dates

2001-06-10—Published

2000-03-10—Filed

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