Method for measuring remote field eddy current thickness in multiple tubular configuration
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United States of America Patent
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Apr 12, 2016
Grant Date -
Aug 1, 2013
app pub date -
Oct 11, 2011
filing date -
Oct 14, 2010
priority date (Note) -
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Abstract
In accordance with aspects of the present invention, a method of inspecting a well tubular is disclosed. The method utilizes a probe with a transmitter and detectors spaced from the transmitter by at least twice the diameter of the pipe to be tested. In some cases where multi-tubular structures are tested, the probe can include further detectors spaced from the transmitter by at least twice the diameter of the outer pipes as well. The phase of signals detected by the detectors relative to the transmitter are utilized to detect faults in the pipes.
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