Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate
2011-08-02
2011-08-02
Moore, Margaret G (Department: 1765)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C507S110000, C507S128000, C507S131000, C507S133000
Reexamination Certificate
active
07989398
ABSTRACT:
Pumpable multiple phase vesicle compositions carry agents and components downhole or through a conduit, and controllably releasing them at a different place and time by breaking the compositions. In one non-limiting embodiment the pumpable multiple phase vesicles have a third phase containing a first phase which bears the agent to be controllably released. The first and third phases of the vesicles are separated by a surface active material bilayer that forms the second phase. The pumpable multiple phase vesicles may have internal and external phases that are both oil miscible, both aqueous miscible, or both alcohol miscible. The surface active material bilayer may be composed of compounds such as phospholipids, alkyl polyglycosides, gemini surfactants, sorbitan monooleate, sorbitan trioleate, and many others. The agent may be released by one or more of a variety of mechanisms.
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Bland Ronald G.
Quintero Lirio
Baker Hughes Incorporated
Moore Margaret G
Mossman Kumar & Tyler PC
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