Wells – Processes – Chemical inter-reaction of two or more introduced materials
Reexamination Certificate
2011-08-02
2011-08-02
Bates, Zakiya (Department: 3676)
Wells
Processes
Chemical inter-reaction of two or more introduced materials
C166S278000, C166S279000, C166S294000, C166S308500
Reexamination Certificate
active
07987912
ABSTRACT:
A subterranean location accessed via a wellbore is treated with an oilfield fluid containing a viscosifying agent which is a polymer and a cross-linking agent which can undergo the Diels-Alder reaction to form a gel. Conditions at the subterranean location alter fluid viscosity by bringing about the Diels-Alder reaction to increase viscosity or the retro Diels-Alder reaction to decrease the viscosity of the gel.
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De Paz Banez Maria Violante
Jones Timothy Gareth John
Robinson Kay Louise
Tustin Gary John
Bates Zakiya
Laffey Brigid
Raybaud Helene
Schlumberger Technology Corporation
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