Methods and systems for degrading downhole tools containing magnesium
US11156050B1 · kind B1 · utility
3Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2019 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | May 3, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/134
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A downhole tool comprising magnesium is placed in a well bore in a subterranean formation for performance of a downhole operation. After performance of the downhole operation, rather than mechanically retrieving or removing the tool, at least a portion of the magnesium in the downhole tool is dissolved by contacting the downhole tool with an aqueous ammonium chloride solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.