Downhole surveying utilizing multiple measurements
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United States of America Patent
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Jul 15, 2014
Grant Date -
Oct 24, 2013
app pub date -
Apr 3, 2013
filing date -
Oct 22, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Certain embodiments described herein provide an estimate of the magnetic interference incident upon a drilling system using multiple magneticclaim sensors within a downhole portion of the drilling system in a first wellbore. Certain embodiments utilize the magnetic measurements to determine an axial interference resulting from one or more magnetic portions of the downhole portion and to provide an estimate of a relative location of a second wellbore spaced from the first wellbore.
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