Proppant for hydraulic fracturing of oil and gas wells
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United States of America Patent
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Jun 7, 2011
Grant Date -
Apr 19, 2007
app pub date -
Jun 9, 2003
filing date -
Apr 29, 2003
priority date (Note) -
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Abstract
The present invention relates to a proppant for the hydraulic fracturing of oil or gas wells, which consists of a mixture of from 10 to 95% by weight of a spherical proppant and from 5 to 90% by weight of an angular material, the percentages being based on the total weight of the mixture. The proppant obtained according to the present invention is useful for eliminating or decreasing the “flow-back” phenomenon in operations in oil or gas wells.
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