PLUGGING A TUBING/CASING ANNULUS IN A WELLBORE WITH A POLYMER GEL

摘要

Docket 860021-A PLUGGING A TUBING/CASING ANNULUS IN A WELLBORE WITH A POLYMER GEL A tubing/casing annulus in a wellbore penetrating a subterranean hydrocarbon-bearing formation is plugged using a gel comprising a high molecular weight, water-soluble carboxylate-containing polymer and a chromic carboxylate complex crosslinking agent. The gel components are combined at the surface and injected into the annulus to form a continuous single-phase gel therein.