FIELD: boreholes cementing. SUBSTANCE: method provides for pumping-in of viscous plastic solution. Clay solution with clay granules is used for pumping-in. Water share in solution is taken equal to water capacity of clay in solution and in clay granules. Sizes of used clay granules do not exceed half difference of borehole and casing string diameters. Granules are added with polyacrylamide according dependance: lg tb.g. 1 11.5 K, where tb.g. planned time of beginning of granules disintegration, minutes; K concentration of polyacrylamide in composition of granules, in mass Viscous plastic solution pumping-in is exercised within time period till granules disintegration. Using the viscous plastic solution, they substitute drilling solution in drill string-borehole annulus. EFFECT: Usage of viscous plastic solution allows to withdraw casing strings. 1 tbl
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