Flue gas injection for heavy oil recovery
US7341102B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 28, 2005 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Oct 5, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/70
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A variety of methods for thermal recovery of natural gas and bitumen from a formation containing the latter. In general, the methods incorporate a series of existing, but previously uncombined technologies. A modified flue gas from the steam generators conventionally used in a SAGD recovery operation is injected into the formation to enhance recovery with the produced fluids, natural gas, bitumen, inter alia are further processed. The injection of the flue gas conveniently is disposed of and further acts to repressurize the formation which otherwise becomes depressurized when depleted of natural gas. Accordingly, environmental and economic advantages are realized with the methodology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.