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2 203 388

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IPC

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Application

2002105993/03, 2002-03-11

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Start date

2002-03-11

(22)

Actual filing date

2002-03-11

(45)

Published

2003-04-27

(72)

Inventor

Akchurin Kh.I.Karimov N.Kh.Mjazhitov R.S.Karimov I.N.Berg Ju.A.Shamsiev R.A.Nikitin S.V.Alibaev I.A.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Tekhnologii"

NONSHRINKING LIGHTENED OIL-WELL CEMENT Russian patent published in 2003 - IPC

Abstract RU 2203388 C1

FIELD: oil and gas industry, well cementing under intricate geological conditions. SUBSTANCE: nonshrinking lightened oil-well cement contains clinker, gypsum, bergmeal, sintered dust of cement production and salt NaCl with following proportion of components, mas.%: clinker, 55.0; gypsum, 5.0; bergmeal, 30.0; sintered dust, 9.5-9.8; salt NaCl, 0.2-05. EFFECT: increased strength and provision for nonshrinkage for qualitative cementing of casing strings in oil and gas wells. 2 tbl

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RU 2 203 388 C1

Authors

Akchurin Kh.I.

Karimov N.Kh.

Mjazhitov R.S.

Karimov I.N.

Berg Ju.A.

Shamsiev R.A.

Nikitin S.V.

Alibaev I.A.

Dates

2003-04-27—Published

2002-03-11—Filed