Perforation method and apparatus
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United States of America Patent
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Issued Date -
Mar 9, 2006
app pub date -
Sep 9, 2004
filing date -
Sep 9, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A signature element is attached to a downhole cable or other protected equipment and the signal from a signature position detector is used, at least in part, to control the orientation of a directed perforating device or other directional device. Signal emitting sources can include a radioactive material added to an encapsulating composition of a downhole cable.
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