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2 012 582

(13)

(51)

IPC

(21) (22)

Application

4929010/03, 1991-02-07

(22)

Actual filing date

1991-02-07

(45)

Published

1994-05-15

(72)

Inventor

Burshtejn M.A.Konovalov V.K.Tarabrin V.V.

(73)

Holder

Rossijskij Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj I Gazovoj Promyshlennosti Po Termicheskim Metodam Dobychi Nefti

DRILLING SOLUTION FOR OPENING PRODUCTION STRATUM Russian patent published in 1994 - IPC

Abstract RU 2012582 C1

FIELD: drilling. SUBSTANCE: drilling solution contains, mass % : cross-linking agent 6-10, reducer of filtration 0.25-0.50, thinning agent 0.075-0.100, phosphorous-chalk being waste of precipitate production 10-50, water the rest. EFFECT: improves quality of drilling solution.

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RU 2 012 582 C1

Authors

Burshtejn M.A.

Konovalov V.K.

Tarabrin V.V.

Dates

1994-05-15—Published

1991-02-07—Filed