The dependence of permeability on effective stress from flow tests at hot dry rock reservoirs at Rosemanowes (Cornwall) and Fenton Hill (New Mexico)
✍ Scribed by Manuel Nathenson
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 239 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0375-6505
No coin nor oath required. For personal study only.
✦ Synopsis
Eective stress is the primary control on permeability and thus on ¯ow and water loss for two-well hot dry rock systems involving injection and production that have been tested to date. Theoretical relations are derived for the ¯ow between an injector and producer, including the dependence of permeability on eective stress. Four relations for permeability as a function of eective stress are used to match ®eld data for the hot dry rock systems at Rosemanowes, Cornwall, and Fenton Hill, New Mexico. The ¯ow and water loss behavior of these systems are well explained by the in¯uence of eective stress on permeability. All four relations for permeability as a function of eective stress are successful in matching the ®eld data, but some have diculty in determining unique values for elastic and hydrologic parameters.