Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2008-07-29
2008-07-29
Gulakowski, Randy (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C507S263000, C507S264000, C507S273000, C166S308100
Reexamination Certificate
active
07405183
ABSTRACT:
The present invention provides a method of forming a viscosified treatment fluid comprising: providing a treatment fluid that comprises water and a gelling agent; contacting the treatment fluid with a boronic acid crosslinking agent so as to form a crosslinked gelling agent, wherein the boronic acid crosslinking agent comprises a compound having the formula:The present invention also provides methods of crosslinking gelling agent molecules, methods of treating a subterranean formation, methods of reusing viscosified treatment fluids, methods of fracturing subterranean formations, and methods of placing a gravel pack in subterranean formations. The present invention also provides boronic acid crosslinking agents and viscosified treatment fluids that comprise crosslinked gelling agents, the crosslinked gelling agent being formed from a reaction comprising a gelling agent and a boronic acid crosslinking agent.
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Baker Botts LLC
Figueroa John J
Gulakowski Randy
Halliburton Energy Service,s Inc.
Kent Robert A.
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