| Title | Recent Reservoir Studies of the Olkaria Geothermal Field, Kenya |
|---|---|
| Authors | Cornel Ofwona |
| Year | 2000 |
| Conference | World Geothermal Congress |
| Keywords | Olkaria, Interference, Micro-Seismicity |
| Abstract | Pressure interference tests and induced micro-seismicity have been used to determine the permeability structure of the Olkaria North East reservoir. Interference tests between wells OW-719 and OW-701 have indicated the presence of a high transmissivity (kh ~18 ñ 22.4 d-m) east-west zone. The presence of this zone (possibly the Olkaria fault) has been confirmed by the fast spread of a seismic cloud (0.6 m/hr) in the NE-SW direction. Lack of induced micro-seismicity 200 m east of well OW-719 at depths below 1400 m has suggested that a dyke-intruded fault exists there. Lack of pressure response at well OW-R3 has provided an indication that this well could be isolated from OW-719. |