Increasing subterranean mobilization of organic contaminants and petroleum by aqueous thermal oxidation
US6387278B1 · kind B1 · utility
17Cited by
9References
21Claims
0Family size
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Key dates
| Filing date | Feb 16, 2000 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/908
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
In situ hydrous pyrolysis/partial oxidation of organics at the site of the organics constrained in an subsurface reservoir produces surfactants that can form an oil/water emulsion that is effectively removed from an underground formation. The removal of the oil/water emulsions is particularly useful in several applications, e.g., soil contaminant remediation and enhanced oil recovery operations. A portion of the constrained organics react in heated reservoir water with injected steam containing dissolved oxygen gas at ambient reservoir conditions to produce such surfactants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.