| Title | A Review of Recovery Factors |
|---|---|
| Authors | Malcolm A GRANT |
| Year | 2018 |
| Conference | Stanford Geothermal Workshop |
| Keywords | stored heat, recovery factor, resource assessment |
| Abstract | A group of fields were reviewed to determine the actual heat recovery under exploitation, and hence the recovery factor. With a tight definition of reservoir volume, and reference temperature at ambient, the average recovery factor is 13±5%, or half the 25% originally used in the USGS method. With a wide definition of the reservoir, recovery factor is only a few percent. |