FIELD: oil and gas industry.
SUBSTANCE: invention relates to the oil-producing industry. Hydrophobic emulsion for treatment of carbonate oil formation contains, wt%: solvent Sintasol or Nefras-C2-80/120 15–35; emulsifier Eximol 3–5; 10–15 % aqueous solution of inhibited hydrochloric acid – the rest.
EFFECT: increased efficiency of treatment of carbonate oil formation due to increase of penetration depth of hydrophobic emulsion into formation, slower rate of acid microglobules reaction in emulsion with formation rock, washing the oil film saturated with asphaltene-resinous substances from the pore surface of the formation and controlling the rheological parameters of the hydrophobic emulsion over time.
1 cl, 2 tbl
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