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2 217 576

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IPC

(21) (22)

Application

2002103083/03, 2002-02-04

(24)

Start date

2002-02-04

(22)

Actual filing date

2002-02-04

(45)

Published

2003-11-27

(72)

Inventor

Rubinshtejn O.I.Kolotov A.V.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Proizvodstvennoe PredprijatieRubinshtejn Oleg Idelevich

PROCESS ISOLATING PRODUCTIVE AND NONPRODUCTIVE FORMATIONS Russian patent published in 2003 - IPC

Abstract RU 2217576 C2

FIELD: oil and gas production, segregation of formations in well. SUBSTANCE: nonproductive formations are impregnated with gel-forming compound. Casing string is sunk. String clearance is filled with cement mortar. In correspondence with invention nonproductive formations are perforated prior to sinking of casing string. Additional excessive pressure is formed in interval of nonproductive formations in process of impregnation of nonproductive formations in well. EFFECT: enhanced efficiency of process. 1 cl

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RU 2 217 576 C2

Authors

Rubinshtejn O.I.

Kolotov A.V.

Dates

2003-11-27—Published

2002-02-04—Filed