FIELD: petroleum industry.
SUBSTANCE: invention relates to the petroleum industry and can be used to increase the petroleum recovery of layers with low permeability and high layer temperature. The composition for increasing the petroleum recovery constitutes an aqueous solution of a gel-forming thermotropic composition in a concentration of 5 to 15 wt.% The gel-forming thermotropic composition comprises, wt.%: aluminium polyoxychloride or aluminium pentahydroxychloride - 25 to 44.9; carbamide - 55 to 74.9; cationic polyacrylamide with an ionic charge degree greater than 30 - 0.1 to 5.
EFFECT: creation of a longer insulation screen, involvement of previously unused petroleum-saturated inter-layers in the development, increase in the petroleum and gas recovery of the layer and reduction in the water content of the recovered products.
1 cl, 2 tbl, 1 ex
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