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2 016 188

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IPC

(21) (22)

Application

4694472/03, 1989-03-30

(22)

Actual filing date

1989-03-30

(45)

Published

1994-07-15

(72)

Inventor

Berezhnoj A.I.Kazakov A.G.Kharisov M.R.Kern V.A.Kochulin A.P.

(73)

Holder

Severnyj Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektno-Konstruktorskij Geologicheskij Tsentr

METHOD FOR OIL AND GAS WELL CASING CEMENTING Russian patent published in 1994 - IPC

Abstract RU 2016188 C1

FIELD: oil and gas producing industry. SUBSTANCE: technical, economical and ecological deep well completion level is increased by improving the degree of substitution of drilling mud by plugging solution and by creation, during second section cementing, of a filtration preventing barrier of waste drilling mud in formations saturated by saline waters. EFFECT: increased efficiency of the process.

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RU 2 016 188 C1

Authors

Berezhnoj A.I.

Kazakov A.G.

Kharisov M.R.

Kern V.A.

Kochulin A.P.

Dates

1994-07-15—Published

1989-03-30—Filed