C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 24/26 (2006.01) C04B 24/00 (2006.01) C04B 24/16 (2006.01) C04B 24/24 (2006.01) E21B 33/13 (2006.01) E21B 33/14 (2006.01)
Patent
CA 2076332
ABSTRACT Cementing compositions having improved fluid loss capabilities, improved corrosion resistance, improved settling characteristics for use in elevated temperature environments in subterranean formation cementing operations are disclosed. More particularly, such compositions include water, hydraulic cement, a styrene/butadiene latex, the styrene to butadiene being present in a ratio of 10/90 to 90/10 by weight and a surfactant comprising a salt of a C12-15 Pareth 10-40 sulfonate. For use at temperatures above 200°F a stabilizer and retarder comprising a selected copolymer of (AMPS?/acrylic acid also preferably is present (AMPS? is a trademark of The Lubrizol Corporation for 2-acrylamido-2-methylpropanesulfonic acid). Additionally, methods of cementing a conduit in a borehole penetrating an earthen formation by introducing such a cementing composition into the space between such a conduit and a formation are disclosed.
Burkhalter John
Childs Jerry D.
Haliburton Company
Swabey Ogilvy Renault
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