Earth boring – well treating – and oil field chemistry – Earth boring – Contains intended gaseous phase at entry into wellbore
Reexamination Certificate
2006-04-25
2006-04-25
Tucker, Philip C. (Department: 1712)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains intended gaseous phase at entry into wellbore
C507S202000, C507S140000, C507S269000, C507S143000, C507S270000, C507S901000, C507S906000, C166S312000, C166S305100, C166S268000, C977S726000
Reexamination Certificate
active
07033975
ABSTRACT:
The present invention provides the use of surface-modified nanoparticles in fluids used to recover hydrocarbon from underground formations. The use of surface-modified nanoparticles in such fluids provides foams that are stable under pressure yet have a shorter foam lifetime than typical surfactant-stabilized foams after the pressure is released or lowered.
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Baran, Jr. Jimmie R.
Cabrera Oswaldo J.
3M Innovative Properties Company
Tucker Philip C.
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