Earth boring – well treating – and oil field chemistry – Well treating – Contains inorganic component other than water or clay
Reexamination Certificate
2006-06-26
2009-11-10
Kugel, Timothy J (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains inorganic component other than water or clay
C166S270000, C166S270100, C166S300000, C166S305100, C166S270100, C252S182130, C252S008570, C252S008570, C252S008570
Reexamination Certificate
active
07615518
ABSTRACT:
A composition and method for breaking down and denaturing friction-reducing compound introduced into the ground during the drilling of oil wells and for destroying other contaminants and biohazards naturally present within and artificially introduced into oil wells, which are formed as a result of the drilling and pumping processes. The composition comprises several species of oxidizing agent compounds that are effective in breaking down hydrogen sulfide produced by bacteria as well as the friction-reducing polymer used during drilling and several other organic compounds.
REFERENCES:
patent: 4871022 (1989-10-01), McGlathery
patent: 4945992 (1990-08-01), Sacco
patent: 4964466 (1990-10-01), Williams et al.
patent: 5031700 (1991-07-01), McDougall et al.
Perry Stephen C.
Williams Michael E.
Admasu Atnaf
Kugel Timothy J
Malin Haley DiMaggio Bowen & Lhota, P.A.
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