Method for magnetizing wellbore tubulars
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United States of America Patent
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Mar 2, 2004
Grant Date -
Aug 22, 2002
app pub date -
Feb 6, 2002
filing date -
Feb 16, 2001
priority date (Note) -
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Abstract
In the method of providing for well tubular member magnetization, the steps include providing a magnetizing structure comprising an electrical coil defining an axis, relatively displacing the member and the structure, with the coil positioned and guided in close, centered proximity to the member, while supplying electric current to flow in the coil, thereby creating magnetic flux passage through the member and core to magnetize the member, or a part of the member, and displacing the member in a wellbore.
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