METHOD TO INSTALL BRIDGE FOR OIL RESERVOIR ISOLATION

FIELD: oil and gas well building, particularly to perform isolation works in cased wells. ^ SUBSTANCE: method involves depositing sand column, which closes perforation interval; injecting plugging composition above sand column. The plugging composition comprises aqueous dispersion including fresh wa...

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Main Authors BIKBULATOV RENAT RAFAEHL'EVICH, GABDRAKHIMOV FAIZ SAGITZJANOVICH, KUROCHKIN BORIS MIKHAJLOVICH, MIKHAJLOV EVGENIJ LEONIDOVICH, JAKOVLEV SERGEJ SERGEEVICH
Format Patent
LanguageEnglish
Russian
Published 10.05.2006
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:FIELD: oil and gas well building, particularly to perform isolation works in cased wells. ^ SUBSTANCE: method involves depositing sand column, which closes perforation interval; injecting plugging composition above sand column. The plugging composition comprises aqueous dispersion including fresh water and water-swelling polymeric powder based on water-absorbing polymer. The polymeric powder is taken in amount of 1.5 parts by weight per 100 parts of fresh water. Gel aggregates of water-swelling polymer are added in amount of not more than 5% by fresh water weight. ^ EFFECT: improved technology of bridge creation. ^ 1 tbl
Bibliography:Application Number: RU20040121790