Coal bed methane recovery
US5402847A · kind A · utility
242Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1994 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Jul 22, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A process for producing methane from a subterranean coal bed by continuously injecting a carbon dioxide-containing gas into the coal bed and recovering displaced and desorbed methane from a recovery well. The injection gas may be exhaust gas from a hydrocarbon fueled engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.