Controlled heat source based down-hole plugging tools and applications
US10053950B2 · kind B2 · utility
5Cited by
17References
45Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 2016 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Dec 9, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A chemical reaction heat source for use in heaters used in down-hole applications is provided. The heat source has a fuel composition that comprises thermite and a damping agent. The use of the thermite mix enables the heaters of the present invention to generate hotter temperatures down wells. This in turn allows the use of Bismuth/Germanium alloys, which have higher melting points, to enable the production of plugs for the abandonment of deeper wells where subterranean temperatures are higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.