PLASTIC COMPOSITION FOR ISOLATION AND LIMITATION OF WATER INFLOW INTO WELLS Russian patent published in 2021 - IPC C09K8/508 C09K8/467 E21B33/13 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry, in particular to compositions for the isolation of flooded intervals of the formation or formations in general with the use of synthetic resins. The plastic composition for isolating water inflow into wells contains phenol-formaldehyde resin of the resol type, acetone-formaldehyde resin, plasticizer, hardener, corrosion inhibitor and polymerization inhibitor.

EFFECT: increase in the quality of repair and insulation work in wells, expansion of the scope of application of a polymer composition based on synthetic resins by increasing the setting time to acceptable periods at temperatures up to +130°C and reducing water separation in the grouting mixture.

1 cl, 1 tbl, 3 ex