Earth boring – well treating – and oil field chemistry – Well treating – Contains inorganic component other than water or clay
Reexamination Certificate
2007-11-30
2010-06-08
Kugel, Timothy J. (Department: 1796)
Earth boring, well treating, and oil field chemistry
Well treating
Contains inorganic component other than water or clay
C106S638000
Reexamination Certificate
active
07732381
ABSTRACT:
The invention provides a cement slurry composition for cementing a well comprising a hydraulic cement, water, carbon fiber and graphite. Compositions of the current invention combine the benefits obtained from adding carbon fiber and graphite to the cement composite. The synergy achieved from combining fibers and particulates into the same sample results in a composite slurry with improved electrical properties and easy-to-optimize rheologies.
REFERENCES:
patent: 2005/0008845 (2005-01-01), Hatanaka et al.
patent: WO 0240799 (2002-05-01), None
Ping Xie, Ping Gu “Electrical Percolation Phenomena in cement Composites Containing Conductive Fibres” Journal of Materials Science, 31 (1996) 4093-4097.
H.W. Whittington “The Conduction of Electricity Through Concrete”, Magazine of Concrete Research, vol. 33, No. 114, Mar. 1981.
J.R. Farrar “Electrically Conductive Concrete” GEC Journal of Science & Technology, vol. 45, No. 1, 1978.
Dammel Terry
Gentry Mitchell
Therond Emmanuel
Williams Robert
Cate David
Griffin Jeff
Kugel Timothy J.
Nava Robin
Schlumberger Technology Corporation
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