Earth boring – well treating – and oil field chemistry – Well treating – Contains inorganic component other than water or clay
Reexamination Certificate
2008-05-19
2011-11-08
Toscano, Alicia (Department: 1766)
Earth boring, well treating, and oil field chemistry
Well treating
Contains inorganic component other than water or clay
C166S279000, C166S285000
Reexamination Certificate
active
08053397
ABSTRACT:
Non-aqueous carrier fluids containing nano-sized particles in high concentration are effective for zone isolation and flow control in water shutoff applications for subterranean formations. The nanoparticles interact with water and solidify it to inhibit its flow, but do not have the same effect on hydrocarbons and thus selectively assist the production of hydrocarbons while suppressing water. Suitable nanoparticles include alkaline earth metal oxides, alkaline earth metal hydroxides, alkali metal oxides, alkali metal hydroxides, transition metal oxides, transition metal hydroxides, post-transition metal oxides, post-transition metal hydroxides, piezoelectric crystals, and/or pyroelectric crystals.
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Crews James B.
Huang Tianping
Johnson Michael H.
Baker Hughes Incorporated
Mossman Kumar & Tyler PC
Toscano Alicia
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