Heat injection process
US5411089A · kind A · utility
320Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Dec 20, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/24
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for heat injection into a subterranean diatomite formation is provided. A heater is placed in a wellbore within the diatomite formation, and the heater is then operated at a temperature above that which the heater could be operated at long term in order to better sinter the formation in the vicinity of the wellbore. The improved sintering of the diatomite significantly improves the heat transfer coefficient of the diatomite and thereby increases the rate at which heat can be injected from a constant limited long term heater temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.