COMPOSITION OF REAGENT FOR ENHANCED OIL RECOVERY Russian patent published in 2017 - IPC C09K8/584 

FIELD: chemistry.

SUBSTANCE: composition of the reagent for enhanced oil recovery, comprising a mixture of sodium alkylbenzenesulfonates (C₁₈-C₂₄), a mixture of polyethylene glycol ethers of synthetic higher fatty alcohols (C₁₆-C₁₈), a mixture of polyethylene glycol monoalkyl ethers on the basis of primary fatty alcohols C_nH_2n+1O(C₂H₄O)_mH, where n=7-9, m=10-12) contains the components in the following ratio, wt %: said mixture of odium alkylbenzenesulfonates 89.55, said mixture of polyethylene glycol ethers of synthetic higher fatty alcohols 9.95, said mixture of polyethylene glycol monoalkyl ethers on the basis of primary fatty alcohols 0.5.

EFFECT: increased efficiency and profitability of treatment.

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