FIELD: chemistry.
SUBSTANCE: acidic composition for terrigenous reservoirs treatment and scale elimination includes, wt %: ammonium fluoride - 0.56-18.50, or ammonium bifluoride - 0.43-14.25, or ammonium bifluoride-fluoride - 0.51-17.00; equimolecular quantity of sulfamic acid; water-soluble polymer - 0.3-5.0; superfine hydrophobic material - 0.1-3.0; complexon - 0.01-3.0; water - the rest. Dry acidic composition for terrigenous reservoirs treatment and scale elimination includes, wt %: ammonium fluoride - 18.50-27.75, or ammonium bifluoride - 14.25-28.5, or ammonium bifluoride-fluoride - 17.00-29.75; equimolecular quantity of sulfamic acid; water-soluble polymer - 0.3-5.0; superfine hydrophobic material - 0.1-3.0; complexon - 0.01-3.0; weighting additive - the rest. Invention is developed in dependent items.
EFFECT: increase in acidic treatment of reservoirs.
6 cl, 4 tbl, 4 ex
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