FIELD: chemistry.
SUBSTANCE: invention relates to oil-extracting industry and is applied for regulation of profile log of water injection wells. Composition for aligning profile log of water injection wells, which contains aluminium salt and water, as aluminium salt contains aluminium chloride and/or sulphate and additionally technical sodium-based lignosulphonates, hydrochloric acid and oil products with viscosity 1-30 mPa·sec with the following component ratio, wt %: aluminium chloride and/or sulphate 7-25, water 5-50, technical lignosulphonates 15-40, hydrochloric acid 0.2-0.5, oil products 15-40.
EFFECT: increase of selective and colmatage ability of composition for rocks of higher permeability.
2 cl, 5 dwg, 1 tbl, 3 ex
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