Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2006-08-15
2006-08-15
Tucker, Philip C. (Department: 1712)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C507S221000, C507S211000, C507S239000, C507S269000, C507S271000, C507S272000, C507S903000, C166S285000, C166S295000, C166S300000
Reexamination Certificate
active
07091160
ABSTRACT:
Methods and compositions for reducing the permeabilities of subterranean formations or zones are provided. The methods of the invention are basically comprised of introducing an aqueous composition into the formation or zone comprised of water, a water soluble organic polymer, an organic gelling agent for cross-linking the organic polymer and a gel retarder comprised of a chemical compound that hydrolyzes or thermolyzes to produce one or more acids in the composition and then allowing the aqueous composition to form a cross-linked gel in the formation or zone.
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Biezen Ewout
Bouwmeester Ron
Dao Bach
Reddy B. Raghava
Verlaan Marco
Baker & Botts
Halliburton Energy Service,s Inc.
Kent Robert A.
Tucker Philip C.
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