Crosslinkable cellulose derivatives
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United States of America Patent
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Jan 8, 1991
Grant Date -
N/A
app pub date -
Mar 10, 1989
filing date -
Mar 10, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Novel treating fluid compositions containing crosslinkable non-ionic cellulose derivatives and methods of use in petroleum recovery operations are disclosed. The treating fluid polymers are prepared by reacting vinyl or allyl monomers having a crosslinkable substitutent with a cellulose derivative using a ceric ion redox system. Treatment of a non-ionic cellulose derivative with a ceric ion redox system also yields a crosslinkable polymer. The polymers readily crosslink with polyvalent metal ions, such as zirconium and titanium, to form temperature-stable gels useful in petroleum recovery operations.
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