Plugging a tubing/casing annulus in a wellbore with a polymer gel
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United States of America Patent
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-
Mar 15, 1988
Grant Date -
N/A
app pub date -
Dec 22, 1986
filing date -
Dec 22, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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