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2 021 489

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IPC

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Application

5019971/03, 1991-07-08

(22)

Actual filing date

1991-07-08

(45)

Published

1994-10-15

(72)

Inventor

Abramov Sergej Arkad'EvichKrezub Anatolij PantelejmonovichMariampol'Skij Naum AkimovichBezrukova Elena SamvelovnaSavenok Nadezhda BorisovnaEgorov Mikhail AleksandrovichKovalev Dmitrij Fedorovich

(73)

Holder

Abramov Sergej Arkad'EvichKrezub Anatolij PantelejmonovichMariampol'Skij Naum AkimovichBezrukova Elena SamvelovnaSavenok Nadezhda BorisovnaEgorov Mikhail AleksandrovichKovalev Dmitrij Fedorovich

GROUTING COMPOUND FOR WELLBORE STABILIZATION Russian patent published in 1994 - IPC

Abstract RU 2021489 C1

FIELD: well drilling. SUBSTANCE: grouting compound contains, mas.%: oil-well portland cement 20-40; semicalcined dolomite powder 20-30; and tripoli 40-50. Semicalcined dolomite powder contains magnesium and calcium oxides amounting in total of not more than 50% and powder granules sizing within 3 mm. EFFECT: higher efficiency. 1 tbl

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RU 2 021 489 C1

Authors

Abramov Sergej Arkad'Evich

Krezub Anatolij Pantelejmonovich

Mariampol'Skij Naum Akimovich

Bezrukova Elena Samvelovna

Savenok Nadezhda Borisovna

Egorov Mikhail Aleksandrovich

Kovalev Dmitrij Fedorovich

Dates

1994-10-15—Published

1991-07-08—Filed

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