Composite silica proppant material
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United States of America Patent
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Jun 22, 2004
Grant Date -
Aug 7, 2003
app pub date -
Nov 9, 2001
filing date -
Nov 9, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved lightweight and highly permeable proppant composition for use in increasing the productivity of a gas or oil well. The proppant composition includes equal amounts by weight of uncalcined bauxite, uncalcined shale and quartz, held together with a binder formed of wollastonite and talc in an amount of less than 10% by weight of the composition. The proppant composition has an alumina content of less than 25% by weight of the composition and a silica content of over 45% by weight of the composition.
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