Wellbore sealing with unsaturated monomer system

摘要

A drilling and cementing process wherein a drilling fluid containing a proton acceptor metal compound component is utilized and thereafter combined with a water-soluble monomer having polymerizable unsaturated groups to give a cementitious slurry which is thereafter used in a wellbore cementing operation. There is thus provided a cementitious slurry comprising a drilling fluid, i.e., at least water and drill solids, proton acceptor metal compound component and water-soluble monomeric component having polymerizable unsaturated groups.