Inspection methods for reprocessing non-metallic oilfield tools
US9840893B2 · kind B2 · utility
4Cited by
7References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2014 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Nov 28, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosure relates to the treatment of non-metallic sucker rods, made of metal, particularly to the method of reclamation of used rods already used in the mechanical deep-pumping extraction of oil. The method of remanufacturing of standard length rods includes subjecting used non-metallic sucker rods to a destructive pull test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.