Injection of scale inhibitors for subterranean microbial processes
US5337820A · kind A · utility
11Cited by
23References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1992 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Dec 22, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/605
- 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 scale inhibitor. 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 an organic phosphate and an organic phosphonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.