Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2010-01-14
2010-12-28
Kugel, Timothy J. (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C166S305100, C507S090000, C507S267000, C507S269000
Reexamination Certificate
active
07858563
ABSTRACT:
A treatment of a subterranean formation which contains a hydrocarbon-bearing zone, is carried out using a hydrocarbon-responsive fluid thickened with an oligomeric surfactant consisting of from 2 to 8_linked surfactant monomer subunits. The process of treatment comprises(i) mixing a thickening amount of oligomeric surfactant with an aqueous liquid to make a viscoelastic treatment fluid,(ii) pumping said viscoelastic treatment fluid through a wellbore and into the subterranean formation, where (iii) contact with hydrocarbons within the formation dissipates the viscosity of the treatment fluid.
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Hughes Trevor
Jones Timothy Gareth John
Tustin Gary John
Zhou Jian
Kugel Timothy J.
Laffey Brigid
Loccisano Vincent
McAleenan James
Schlumberger Technology Corporation
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