COMPOSITION FOR PLUGGING OF WELL WITH WATER INFLOW Russian patent published in 1996 - IPC

FIELD: oil producing industry. SUBSTANCE: composition for plugging of well with water inflow contains, mas.%: alkyl ether of organosilicon compound 30-99 and polar solvent 1-70. Alkyl ether of organosilicon compound is used in form of teraethoxysilan or ethyl silicate-32 or ethyl silicate-40 or tarring of ethyl silicates. Polar solvent is used in form of monohydric and/or dihydric alcohols and/or ester and/or ketone. Alkyl ester of organosilicon compound and polar solution are mixed. Composition is delivered to oil fields in form of one-pot composition. Shelf life of the composition exceeds 12 months. Hydrolyzing component is used in form of stratal water remained in pores after passage of injected composition. Gel time of the composition is regulated within temperature up to 300 C. EFFECT: higher efficiency. 2 tbl