Drilling muds effective at high temperature

Details Drilling muds effective at high temperature Drilling muds effective at high temperature

1994-08-01

1995-06-13

Tucker, Philip

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C09K 702

Patent

active

054242835

ABSTRACT:
Aqueous drilling muds effective at high temperature containing complexes, preformed or formed in situ, of tetravalent zirconium with one or more organic acids, or relative salts, of general formula (I) ##STR1## where R.sub.1 and R.sub.2, which can be the same or different, represent --H, --COOH, --CH.sub.3, --CH.sub.2 COOH or --CH(OH)COOH, or R.sub.1 and R.sub.2 jointly represent an oxo group (.dbd.O).

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