POLYMER-BASED CENTRALIZER FOR DOWNHOLE DRILLING APPARATUS
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United States of America Patent
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Aug 7, 2017
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Aug 8, 2016
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Abstract
The invention provides a centralizer for use with downhole operations. The centralizer is formed of a hollow, cylindrical body having an exposed outer surface and formed of a non-metallic material, a plurality of non-metallic blades protruding from the outer surface of the cylindrical body, and a plurality of wear buttons positioned on each of the plurality of blades, each of the wear buttons having a surface designed to reduce grabbing or sticking and wear of the hollow cylindrical body, such as a smooth, oval surface.
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