Ceramic particles with controlled pore and/or microsphere placement and/or size and method of making same
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United States of America Patent
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Aug 9, 2016
Grant Date -
Sep 4, 2014
app pub date -
Apr 15, 2014
filing date -
Dec 31, 2009
priority date (Note) -
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Abstract
The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.
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