FIELD: methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells.
SUBSTANCE: method involves secondary penetrating two-phase saturated formation by repeated cumulative perforation; flushing the well in the case of oil-water inflow; filling water saturated formation part penetrated by primary drilling with viscoelastic composition or with drilling mud; filling water-saturated formation part with aqueous solutions of electrolytes or acids; filling remainder formation part with drilling mud. The repeated cumulative perforation is carried out only within oil-saturated formation part along with full explosion heat absorbing and new fluid channels forming.
EFFECT: increased oil output from well.
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