FIELD: oil industry, possible use during processing of bottomhole zone in horizontal or directional boreholes of extractive wells.
SUBSTANCE: in accordance to method, acid solution is forced into bottomhole zone under forcing pressure, at which well receives acidic solution. In accordance to invention, forcing of acid solution is performed with flow not more than 100 m3/day, stage-wise with increasing forcing pressure from stage to stage with technological exposure between stages and pressure measurement in well after each technological exposure. After lowering well pressure after another technological exposure, forcing of acidic solution is stopped and well is washed by oil or hydrophobic emulsion solution.
EFFECT: increased productiveness of well with preservation of watering of extracted product.
1 ex
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