Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2009-02-09
2009-11-24
Gulakowski, Randy (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C507S259000
Reexamination Certificate
active
07622429
ABSTRACT:
A composition for inhibiting or preventing the formation of emulsions and asphaltic sludges in the presence of treating acids during the acid stimulation of hydrocarbon wells is provided. The composition includes an alkyl aryl sulfonic acid or salt thereof, an acetylenic alcohol, an alkyl diphenyl oxide sulfonic acid or derivative thereof, in an alkyl alcohol solvent. The disclosed compositions can be used in an acid treatment solution, such as 15% hydrochloric acid, to prevent and resolve live acid and spent acid emulsions for a wide range of crude oils.
REFERENCES:
patent: 2854477 (1958-09-01), Steinhauer
patent: 5622921 (1997-04-01), Dyer
patent: 6192987 (2001-02-01), Funkhouser et al.
patent: 6346279 (2002-02-01), Rochon
BJ Services Company
Gulakowski Randy
Howrey LLP
Toscano Alicia M
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