Toe circulation sub
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United States of America Patent
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Mar 20, 2018
Issued Date -
N/A
app pub date -
Mar 7, 2013
filing date -
Mar 8, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A toe circulation sub for a wellbore liner, the toe circulation sub comprising: a body including a connection for connecting the body to a wellbore liner to define an inner facing portion open to an inner diameter of the liner and an outer facing portion open to an outer surface of the liner; a bore through the body from the inner facing portion to the outer facing portion; and, a ball seat in the bore formed to stop and seal with a ball to plug flow through the bore to close the toe circulation sub. The toe circulation sub is useful for methods and may be installed in a wellbore liner.
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