Secondary oil recovery process using oxyalkylated additives
US4043922A · kind A · utility
24Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1975 |
| Grant date | Aug 23, 1977 |
| Priority date | — |
| Expiry date | Jun 26, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/936
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the recovery of hydrocarbon materials from a subterranean hydrocarbon-bearing formation by contacting the formation with an aqueous alkaline flooding medium containing a solubilizing agent. Useful solubilizing agents include for example, block-type compounds of the formula: ##STR1## wherein n is an integer of from 1 to about 10 and m is an integer of about 5 to about 40.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.