FIELD: oil industry.
SUBSTANCE: invention relates to oil industry, particularly to methods of processing bottom-hole zone. In the method of processing of well is shut off; one performs interval-wise large volume treatment of bottom-hole zone (LVTBZ) of each interlayer, for this purpose, each layer is isolated separately by means of two Packers, process fluid is pumped with acid containing reagent, well is stimulated and maintained acid response waiting time for 6-8 hours. After LVTBZ reaction products, which are formed as result of acid reaction with rock are pumped out from formation by swabbing; sampling is performed at wellhead and define pH of well product, and if this value falls within range from 4 to 10, then conclusion is made on absence of water flooding of formation.
EFFECT: technical result consists in improvement of efficiency of acid treatment of bottom-hole formation zone in production and injection wells, increasing reservoir recovery.
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