Dual injection points in SAGD
US9739123B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2012 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Sep 17, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/2406
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for recovering petroleum from a formation, wherein at least two injection wells and at least one production well are in fluid communication with said formation, comprising: introducing a gaseous mixture into a first and a second injection well at a temperature and a pressure, wherein said gaseous mixture comprises steam and non-condens able gas (NCG); and recovering a fluid comprising petroleum from said production well, wherein said injection wells and a production well are horizontal wells, and wherein said first injection well is disposed 1-10 meters above said production well, and said second injection well is disposed at least 5 meters above said first injection well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.