This delay the gelling of the monomers unsaturated, compositions containing a gelling delayed said monomers and application of said compositions for the treatment of underground formations

摘要

Process for delaying the gelling of vinyl monomers in aqueous medium in the presence of a polymerization initiator, which consists in employing an inhibitor constituted by a salt of n - nitrosophenylamine associated with an acid, aminocarboxylic acid. / p & & p & aqueous compositions with delayed gelatinization consisting of a vinyl monomer, of an organic peroxide, of a salt of n - nitrosophenylamine and an acid aminocarboxylic acid. / p & & p & use of these compositions for the clogging of the losses of circulation in the borehole at great depth.