Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate
2005-05-03
2005-05-03
Tucker, Philip C. (Department: 1712)
Earth boring, well treating, and oil field chemistry
Well treating
Contains organic component
C507S211000, C507S213000, C507S216000, C507S217000, C507S203000, C507S267000, C507S269000, C507S901000
Reexamination Certificate
active
06887833
ABSTRACT:
The present invention provides oil based compositions and methods of using the compositions for temporarily sealing subterranean zones. The compositions are basically comprised of oil, a hydratable polymer, an organophilic clay, a water-swellable clay, and an acid soluble material such as calcium carbonate. These compositions will form a viscous gel when contacted with water. The gelled mass may then be dissolved with an acidic fluid, such as 15% hydrochloric acid.
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Brothers Lance E.
Crook Ronald J.
Palmer Anthony V.
Conley & Rose, P.C.
Halliburton Energy Service,s Inc.
Roddy Craig W.
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