Method and apparatus for producing fluid by varying current flow through subterranean source formation
US3948319A · kind A · utility
354Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 16, 1974 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Oct 16, 1994 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Method and apparatus for heating a subterranean formation in which a plurality of wells are completed in a predetermined pattern, characterized by heating the subterranean formation by electrical conduction under conditions such that the electrical current flowing at different subterranean points in the subterranean formation, or adjacent thereto, varies at different times because of different current flow patterns to attain a more nearly uniform heating of the subterranean formation. Also disclosed are a plurality of methods and apparatus, including the preferred embodiments of this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.