FIELD: oil and gas industry.
SUBSTANCE: invention relates to the oil-producing industry. In method of treatment of bottomhole zone to annular space is pumped water with corrosion inhibitor, then to acid annulus is pumped acid composition, displacing through well tubing strings (WTS) with water corrosion inhibitor in line, connected with tubing string, overlapping tubing string from above, injecting into annular space acid composition, then pumped into annular space drilling fluid and performing acid injection into zone of productive formation, method comprises holding for 8–16 hours, opening the tubing string to remove reaction products from the bottomhole zone. Acid composition used is Rex 1 reverse type emulsion containing hydrochloric acid, a hydrocarbon solvent and a surfactant.
EFFECT: improved technological effectiveness of the method for treatment of the bottomhole zone of the well, reduced duration and labor intensity of the process.
1 cl, 1 ex
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