Borehole treating substance containing ether carboxylic acids

Details Borehole treating substance containing ether carboxylic acids Borehole treating substance containing ether carboxylic acids

2004-07-20

2010-06-22

Kugel, Timothy J. (Department: 1796)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C507S137000, C507S261000

Reexamination Certificate

active

07741248

ABSTRACT:
A well servicing composition containing an aqueous phase and an oil phase and an ether carboxylic acid of the formula:in-line-formulae description="In-line Formulae" end="lead"?RO(CH2CH2O)x(CH2CHR1O)yCH2—COOXin-line-formulae description="In-line Formulae" end="tail"?wherein, R is a saturated or unsaturated, branched or unbranched alkyl or alkenyl group containing 6 to 22 carbon atoms, x is a number from 1 to 20 and y is 0 or a number from 1 to 20, provided that the sum of x and y is at least 1 and at most 25, R1is an alkyl group containing 1 to 4 carbon atoms and X comprises at least one member selected from the group consisting of a hydrogen atom, monovalent cations and polyvalent cations.

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