FIELD: oil-and-gas industry.
SUBSTANCE: in compliance with proposed method, water solution is forced in artificially created fractures which contains 3-10 wt % of suspended mix of bentonite clay powder modified with quartz sand at their ratio of 10:1 - 1:2 and containing 0.01-0.30 wt % of partially hydrolysed polyacrylamide and 0.1-0.6 wt % of cross-linking agent, that is, chromium-containing compound.
EFFECT: higher recovery.
2 tbl
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| METHOD FOR INCREASE OF OIL RECOVERY OF CRACKED AND POROUS BEDS WITH ARTIFICIALLY CREATED CRACKS AFTER HYDRAULIC BED RUPTURE - HBR | 2009 |
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| METHOD OF INCREASING OIL RECOVERY OF FRACTURED, WELL PERMEABLE, AVERAGE-PERMEABLE POROUS BEDS AND BEDS WITH ARTIFICIALLY CREATED CRACKS AFTER HYDRAULIC FRACTURING-FHF | 2014 |
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