Application of high integrity welding and repair of metal components in oil and gas exploration, production and refining
US8141768B2 · kind B2 · utility
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15References
37Claims
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Key dates
| Filing date | Dec 21, 2006 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Nov 10, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for welding and repairing cracks in metal parts is provided by subjecting the metal parts to be welded to friction stir welding and the cracks to be repaired to friction stir processing under conditions sufficient to provide a weld joint or crack repair having a preselected property or set of properties based upon the intended use of the weldment. The FSW and FSP methods are advantageous in joining and repairing metal structures and components in applications for natural gas transportation and storage, oil and gas well completion and production, and oil and gas refinery and chemical plants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.