TECHNIQUE FOR ISOLATION OF HIGHLY PENETRABLE INTERVALS OF SEAM IN WELL

oil and gas production. SUBSTANCE: technique for isolation of highly penetrable intervals of seam in well includes successive pumping of insulation materials into face zone of seam, one of them being visco-elastic compound, the other one being aqueous solution of flocculant with addition of clay pow...

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Bibliographic Details
Main Authors DZHAFAROV I.S, PANAKHOV GEJLANI MINKHADZH OGLY, SHAKHVERDIEV AZIZAGA KHANBABA OGLY, GUMERSKIJ KH.KH
Format Patent
LanguageEnglish
Published 20.11.2000
Edition7
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:oil and gas production. SUBSTANCE: technique for isolation of highly penetrable intervals of seam in well includes successive pumping of insulation materials into face zone of seam, one of them being visco-elastic compound, the other one being aqueous solution of flocculant with addition of clay powder. Technique provides for washing of hydrocarbon deposits away from surface of face zone of seam before insulation materials are pumped. It does not matter whether visco-elastic compound is pumped into face zone after pumping of aqueous solution of flocculant with addition of clay powder or aqueous solution of flocculant with addition of clay powder is pumped into face zone after pumping of visco-elastic compound. Water-soluble polymer of acryl series is used in the capacity of flocculant in aqueous solution. EFFECT: increased stability of created isolation barriers. 3 cl
Bibliography:Application Number: RU20000112393