Lost circulation fluid for oil field drilling operations
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United States of America Patent
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Feb 5, 1991
Grant Date -
N/A
app pub date -
Jul 14, 1989
filing date -
Jul 14, 1989
priority date (Note) -
Expired
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Abstract
A flowing crosslinked polymer gel is employed as a lost circulation fluid in a process for reducing lost circulation during an oil field drilling operation. The lost circulation fluid comprises a carboxylate-containing polymer, a chromic carboxylate crosslinking agent, and an aqueous solvent.
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