Metal salts

Details Metal salts Metal salts

2006-11-21

2006-11-21

Zucker, Paul A. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C562S609000

Reexamination Certificate

active

07138545

ABSTRACT:
Alkali metal carboxylate salt brines, such as cesium formate brine, are used in oil and gas drilling procedures. Contamination with chloride ions can be controlled by treatment with a silver salt solution, and removing silver chloride formed. High density brines can be obtained, suitable for re-use.

REFERENCES:
patent: 4440649 (1984-04-01), Loftin et al.
patent: 5139981 (1992-08-01), Kurland
patent: 6177014 (2001-01-01), Potter et al.
patent: 0 572 113 (1993-12-01), None

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