FIELD: oil and gas industry.
SUBSTANCE: invention relates to the oil-producing industry. Composition for intensification of development of low-production deposits of high-viscosity oil with carbonate reservoir contains the following, wt%: complex surface-active substance Neftenol VVD or mixture of nonionic surfactant AF 9-12 or NP-40, or NP-50 and anionic surfactant volgonat in ratio 2:1 1.0–4.0; phosphoric acid 1.0–10.0; carbamide 5.0–10.0; glycerine 10.0–50.0; water – balance.
EFFECT: high permeability of the carbonate formation reservoir, low oil viscosity, low reaction rate of the composition with the carbonate rock.
1 cl, 7 dwg, 3 tbl, 7 ex
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