CERAMIC ISOLATION BALL FOR FRACTURING SUBSURFACE GEOLOGIC FORMATIONS
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United States of America Patent
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Issued Date -
Sep 3, 2015
app pub date -
Mar 3, 2015
filing date -
Mar 3, 2014
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Abstract
An embodiment of a ceramic isolation ball is provided to cooperate with a ball seat to isolate a first portion of a well drilled into the earth's crust from a second portion of the well. Embodiments of the ball of the present invention are comprised of a ceramic material with excellent resistance to deformation when received into a ball seat and subjected to very high pressure differentials tending to force the ball into the ball seat to isolate a portion of a borehole below or beyond the ball and ball seat from a portion of the borehole above or before the ball and ball seat. Embodiments of the ball of the present invention include a hollow interior and a hole that receives a plug to close the hollow interior to prevent fluid intrusion therein. The ball is used to isolate a portion of a well during high-pressure fracturing operations.
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