Nutrient injection method for subterranean microbial processes
US5083611A · kind A · utility
48Cited by
12References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1991 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Jan 18, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/905
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a method of injecting nutrients into a subterranean formation in order to achieve a desired in-situ microbial objective. Sources of individual nutrient components which are deficient in the formation are sequentially injected so that a complete nutrient medium capable of sustaining substantial microbial activity is formed in the formation upon injection of the last of said sources. Said sources are preferably injected into the formation in order of decreasing quantitative formation retainability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.