Process for assisted recovery of heavy hydrocarbons from an underground formation using drilled wells having an essentially horizontal section
US5016709A · kind A · utility
86Cited by
19References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Jun 5, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A process for the assisted recovery of heavy hydrocarbons from an underground formation having a plurality of superimposed reservoirs for the hydrocarbons involves arranging horizontal sections of a plurality of wells so that a first well of a first series of wells extend into a reservoir and is located essentially vertically below a horizontal section of a second well located in an immediately adjacent reservoir, with the first well being used as a steam injection well and the second well being used as a hydrocarbon-producing well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.