Composition for steam extraction of bitumen
US10941347B2 · kind B2 · utility
0Cited by
20References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2017 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Nov 30, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2406
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a composition comprising an alkanolamine and an ethylene oxide capped glycol ether and/or propylene oxide capped glycol ether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.