FIELD: drilling of wells.
SUBSTANCE: invention relates to compositions of fluids containing liquid carbon dioxide and a friction-reducing polymer for use in hydraulic fracturing of a subterranean formation. Fluid composition for hydraulic fracturing of a subterranean formation, comprising: carbon dioxide—CO2 in combination with a friction-reducing polymer, in amount of 0.001–0.4 wt % fluid medium compositions, wherein the friction-reducing polymer has weight-average molecular weight from more than 100000 g/mol to 1000000 g/mol, is a fluoroacrylate homopolymer or copolymer of fluoroacrylate and styrene and is at least partially soluble in CO2.
EFFECT: technical result is reduction of frictional losses, increase of flow rate of fluid medium during hydraulic fracturing of formation, reduction of formation destruction.
1 cl, 3 dwg, 1 tbl, 1 ex
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| USE OF POLYMER IN FORM OF DISPERSION AS FRICTION REDUCING AGENT IN AQUEOUS FRACTURING FLUIDS | 2003 |
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| METHODS OF MINIMIZING EXCESSIVE EXTENSION OF PROPPING AGENT UNDER HYDRAULIC FRACTURING TREATMENT | 2014 |
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