Anti-rotation method and apparatus for limiting rotation of cementing plugs
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United States of America Patent
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Jul 25, 2006
Issued Date -
N/A
app pub date -
Jan 15, 2004
filing date -
Jul 23, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for preventing or limiting the rotation of cementing plugs in a casing string during drillout. The apparatus includes an outer housing with a sleeve disposed therein. The sleeve has an inner surface configured to engage cementing plugs received therein to cause an interference fit. The sleeve will hold the cementing plugs when rotational forces, such as drilling forces, are applied so that during drillout, rotation of the cementing plug is prevented or is at least limited.
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