Advancing heated annulus steam drive
US4460044A · kind A · utility
218Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1982 |
| Grant date | Jul 17, 1984 |
| Priority date | — |
| Expiry date | Aug 31, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method is disclosed for producing viscous petroleum from subsurface deposits. The method employs a vertical well and a horizontal well through the petroleum deposit. A combination of injection procedures through the horizontal and vertical well heat the viscous petroleum in the annulus around the horizontal well. Successive completion intervals are installed in the horizontal well to produce the heated petroleum. The petroleum is driven by a drive fluid passing through previously produced intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.