Coated oil and gas well production devices
US8602113B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2011 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Sep 22, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided are coated oil and gas well production devices and methods of making and using such coated devices. In one form, the coated device includes one or more cylindrical bodies, hardbanding on at least a portion of the exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more cylindrical bodies, and a coating on at least a portion of the inner surface, the outer surface, or a combination thereof of the one or more cylindrical bodies. The coating includes one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated oil and gas well production devices may provide for reduced friction, wear, erosion, corrosion, and deposits for well construction, completion and production of oil and gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.