Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Reexamination Certificate
2007-08-14
2007-08-14
Gulakowski, Randy (Department: 1712)
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C507S118000, C507S119000, C507S124000, C507S129000, C507S221000, C507S225000, C507S239000, C507S904000, C166S282000, C166S283000, C516S027000, C516S028000, C175S072000
Reexamination Certificate
active
11508380
ABSTRACT:
The present invention concerns a water-based drilling mud for utilization in the drilling of oil wells comprising an aqueous phase wherein the aqueous phase contains an oil soluble polymer in the form of a gel as a fluid loss reducer. The subject invention further reveals a method of lubricating a drilling bit during the drilling of a well which comprises circulating a water-based drilling mud in the vicinity of the drilling bit wherein the water-based drilling mud is comprised of an aqueous phase, and wherein the aqueous phase contains an oil soluble polymer in the form of a gel as a fluid loss reducer.
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Guichard Bertrand
Vongphouthone Patrick
Wood Barry
Eliokem S.A.S.
Figueroa John J.
Gulakowski Randy
Rockhill Alvin T.
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