Utilization of phosphite salts as nutrients for subterranean microbial processes
US5327967A · kind A · utility
25Cited by
21References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Dec 22, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/58
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel process for sustaining microbial activity in subterranean formations which comprises introducing as a microbial nutrient, a phosphite salt. This process may include the sequential injection of sources of individual nutrient components which are deficient in said subterranean formation, whereby the injected phosphorus source is selected from the group consisting of a phosphite salt and a phosphorous acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.