Nanoclay as an additive for high pressure and high temperature well cementing
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United States of America Patent
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May 16, 2017
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Jun 23, 2016
app pub date -
Dec 17, 2014
filing date -
Dec 17, 2014
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Abstract
A cement slurry composition, containing hydraulic cement, water, and from 1 to less than 4% of an organically modified nanoclay. A method for cementing a high pressure high temperature well by pumping the cement composition of claim 1 between a casing and a formation of a well bore to fill a gap between the casing and the formation, and allowing the cement to harden.
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