Earth boring – well treating – and oil field chemistry – Preventing contaminant deposits in petroleum oil conduits
Reexamination Certificate
2008-07-03
2011-10-25
Kugel, Timothy J. (Department: 1765)
Earth boring, well treating, and oil field chemistry
Preventing contaminant deposits in petroleum oil conduits
C166S304000, C166S305100, C166S307000, C166S308200, C166S308300, C166S308400, C175S065000, C507S101000, C507S201000, C507S267000, C507S902000, C507S923000, C507S933000, C516S021000, C516S053000
Reexamination Certificate
active
08043996
ABSTRACT:
A process is disclosed for treating an underground formation, which process comprises: (a) introducing into the underground formation a micellar dispersion comprising water, one or more organic acid precursors, one or more surfactants and, optionally, one or more salts, co-surfactants and/or organic liquids that are not organic acid precursors; and (b) allowing (i) the micellar dispersion to solubilize hydrocarbons, emulsions or water blocks present in the underground formation, and (ii) at least a portion of the organic acid precursor to hydrolyze in-situ to produce sufficient organic acid to substantively dissolve acid soluble material present in or adjacent to filter cakes or other damage in the underground formation.
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Cleansorb Limited
Kugel Timothy J.
Nixon & Vanderhye P.C.
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