Apparatus and method of determining casing thickness and...

Electricity: measuring and testing – Magnetic – Magnetic sensor within material

Reexamination Certificate

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C324S338000, C324S345000

Reexamination Certificate

active

07403000

ABSTRACT:
A casing inspection device with magnets and flux sensors. The sensors provide measurements of absolute levels of magnetic flux that are indicative of changes in casing thickness and/or permeability.

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