FIELD: oil production, particularly methods or devices for cementing, for plugging holes, crevices, or the like.
SUBSTANCE: method involves injecting polyacrylmide suspended in organic liquid in reservoir and forcing thereof in reservoir with water. The polyacrylmide is anionic polyacrylmide. Solid polyacrylmide is previously treated with 0.3-10 Mrad dose of accelerated electrons. Polyacrylmide concentration in organic liquid is 5-50%. After above suspension forcing 10-60% urethane prepolymer solved in acetone is additionally injected and forced with water in reservoir.
EFFECT: increased water and behind-the-casing flow isolation time.
3 ex
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