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2 081 147

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Application

94028824/03, 1994-08-01

(22)

Actual filing date

1994-08-01

(45)

Published

1997-06-10

(72)

Inventor

Krysin N.I.Natsepinskaja A.M.Grebneva F.N.Chabina T.V.

(73)

Holder

Permskij Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj Promyshlennosti Aktsionernogo Obshchestva

REAGENT FOR TREATING CLAYLESS DRILLING FLUIDS Russian patent published in 1997 - IPC

Abstract RU 2081147 C1

FIELD: drilling boreholes. SUBSTANCE: reagent contains, wt.%: polyacrylamide, 1-2; calcium oxide, 1-4; lignosulfonate, 20-25; water, the balance. EFFECT: optimized composition of reagent. 2 tbl

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RU 2 081 147 C1

Authors

Krysin N.I.

Natsepinskaja A.M.

Grebneva F.N.

Chabina T.V.

Dates

1997-06-10—Published

1994-08-01—Filed

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