Process for recovering heavy oil utilizing one or more membranes
US7597144B2 · kind B2 · utility
19Cited by
5References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2008 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Aug 27, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oil recovery process utilizes one or more membranes to remove silica and/or oil from produced water. In one method, the process includes separating oil from produced water and precipitating silica. The produced water having the precipitated silica is directed to a membrane, such as a ceramic membrane, which removes the precipitated silica from the produced water. In some cases, residual oil is present and is also removed by the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.