FIELD: oil and gas industry.
SUBSTANCE: invention pertains to operation of oil and gas wells, and namely to methods for limiting water influx in oil wells, wells. Bituminous-mineral cement composition consisting of bitumen-containing reagent and mineral powder is pumped into stratum. Bitumen emulsion is used as bitumen-containing reagent and well cement is used as mineral powder. Bitumen emulsion makes from 1 up to 10% of weight of dry well cement. After preparation and pumping bituminous-mineral cement composition is held till it hardens in water-bearing part of the stratum and dilutes in oil-bearing part of the stratum. Further the well is washed with subsequent holding till complete hardening of the composition in water-bearing part of the stratum with subsequent removal from oil-bearing part of the stratum during well development.
EFFECT: invention allows increasing efficiency and quality of remedial cementing by increasing stability of the formed bituminous water shutoff screen, reducing its fragility and labour intensity.
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