Wellbore instrument module having magnetic clamp for use in cased wellbores
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United States of America Patent
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May 25, 2010
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app pub date -
Jun 12, 2008
filing date -
Jun 12, 2008
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Abstract
A magnetically clamped wellbore instrument module includes a substantially non-magnetic housing configured to traverse an interior of the wellbore. At least one electromagnet is disposed at a longitudinally spaced apart position along the housing. The at least one electromagnet has a plurality of circumferentially spaced apart contact points that define a diameter greater than a diameter of the housing. The contact points have circumferential spaces therebetween defining a diameter smaller than the diameter defined by the contact points.
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