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2 006 499

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IPC

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Application

5051797/03, 1992-07-10

(22)

Actual filing date

1992-07-10

(45)

Published

1994-01-30

(72)

Inventor

Krysin N.I.Natsepinskaja A.M.Minaeva R.M.

(73)

Holder

Permskij Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj Promyshlennosti

CLAYLESS DRILLING FLUID Russian patent published in 1994 - IPC

Abstract RU 2006499 C1

FIELD: hole drilling. SUBSTANCE: clayless drilling fluid has, % by weight: polyacrylamide 0,02-0,04; magnesium oxide 0,3-1,0; unmodified lignosulfate 2,0-4,5; aluminium sulfate 0,005-0,040, and water- the rest. EFFECT: enhanced quality of drilling fluid. 2 tbl

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RU 2 006 499 C1

Authors

Krysin N.I.

Natsepinskaja A.M.

Minaeva R.M.

Dates

1994-01-30—Published

1992-07-10—Filed

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