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Coated sleeved oil and gas well production devices

  • US 8,590,627 B2
  • Filed: 02/22/2011
  • Issued: 11/26/2013
  • Est. Priority Date: 02/22/2010
  • Status: Active Grant
First Claim
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1. A coated sleeved oil and gas well production device comprising:

  • one or more cylindrical bodies,one or more sleeves proximal to an outer diameter or inner diameter of the one or more cylindrical bodies,hardbanding on at least a portion of an exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more sleeves,a coating on at least a portion of the inner sleeve surface, the outer sleeve surface, or a combination thereof of the one or more sleeves,wherein the coating comprises one or more ultra-low friction layers,and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating.

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