Method for oil recovery using a modified heteropolysaccharide
US4874044A · kind A · utility
4Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1988 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Oct 11, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/936
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A process for recovering hydrocarbons from a subterranean hydrocarbon bearing formation penetrated by an injection well and a production well which comprises injecting an aqueous drive fluid into the formation and forcing the drive fluid through the formation to recover the hydrocarbons from the production well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.