METHOD FOR HYDRAULIC RESERVOIR FRACTURING Russian patent published in 2006 - IPC E21B43/26 

Abstract RU 2276258 C2

FIELD: oil production, particularly hydraulic reservoir fracturing in oil or oil-and-gas condensate well.

SUBSTANCE: method involves fracturing reservoir with hydrocarbon liquid having similar or the same properties as hydrocarbon liquid to be produced from reservoir; transmitting propane with liquid. The propane is taken as bentonitic or hydrophobizated clay having particle dimensions of 0.1-30 μm taken in amount of 2-5% by weight of hydrocarbon additive to be added in transmission liquid. The transmission liquid includes hydrocarbon additive, namely hydrocarbon solvent taken in amount of 15-30 % by weight, cationic or anionic surfactant in amount of 0.05-0.1% by weight, remainder is water.

EFFECT: increased reservoir liquid inflow to well bottom, increased efficiency, possibility to retain reservoir drainage capacity.

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RU 2 276 258 C2

Authors

Sorokin Aleksej Vasil'Evich

Khavkin Aleksandr Jakovlevich

Dates

2006-05-10Published

2004-03-23Filed