In situ combustion as adjacent formation heat source
US7909093B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2009 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | May 30, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Methods and apparatus relate to in situ combustion. Configurations of injection and production wells facilitate the in situ combustion. A first production well disposed in a first oil bearing reservoir is spaced from a second production well disposed in a second oil bearing reservoir separated from the first oil bearing reservoir by a stratum having lower permeability than the first and second oil bearing reservoirs. The stratum isolates one of the first and second production wells from one of the first and second oil bearing reservoirs. In situ combustion through the first oil bearing reservoir generates heat that irradiates into the second oil bearing reservoir to enable producing hydrocarbon with the second production well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.