Corrodible downhole article and method of removing the article from downhole environment
US9139928B2 · kind B2 · utility
9Cited by
446References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2011 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Jan 22, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/08
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of removing a corrodible downhole article having a surface coating includes eroding the surface coating by physical abrasion, chemical etching, or a combination of physical abrasion and chemical etching, the surface coating comprising a metallic layer of a metal resistant to corrosion by a corrosive material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.