Surfactant composition

Details Surfactant composition Surfactant composition

2004-10-06

2010-12-07

Kugel, Timothy J. (Department: 1796)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C516S099000, C516S102000, C516S104000, C516S108000, C516S073000, C516S058000, C516S066000, C516S067000, C507S222000

Reexamination Certificate

active

07846876

ABSTRACT:
The present invention relates to a surfactant composition containing a cationic surfactant (hereinafter referred to as a compound (A)), one or more compounds (hereinafter referred to as a compound (B)) selected from anionic aromatic compounds and bromide compounds and a cationic polymer (C), wherein compound (A) and (B) are selected when meeting the following condition: a combination of the compounds (A) and (B) ensures that that the viscosity (20° C.) of a solution prepared by mixing an aqueous solution SAof the compound (A) and an aqueous solution SBof the compound (B) in the same ratio is at least two times the viscosity of any one of the aqueous solutions (20° C.) before being mixed.

REFERENCES:
patent: 4176107 (1979-11-01), Buckman et al.
patent: 4393939 (1983-07-01), Smith et al.
patent: 2003/0209695 (2003-11-01), Tsuzuki et al.
patent: 1266875 (2002-12-01), None
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patent: 2001-220196 (2001-08-01), None
patent: 2002-60790 (2002-02-01), None
patent: 2003-238222 (2003-08-01), None
patent: 2003-238997 (2003-08-01), None
patent: 2003-261860 (2003-09-01), None
Japanese Office Action mailed on Jan. 19, 2010 in corresponding Japanese Patent Application No. 2004-271336.

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