| Title | Interpretation of Interference Data from the Olkaria North East Field |
|---|---|
| Authors | Kagiri, D. |
| Year | 1994 |
| Conference | New Zealand Geothermal Workshop |
| Keywords | |
| Abstract | A multi-well interference test was conducted in the Olkaria N.E. geothermal field fiom November 1993 to April The test involved three production and three observation wells. The pressure drawdown in OW-707 was 0.2bars after days while in OW-724 was 0.47bars after 104 days which is an indication of lateral communication between wells in this part of Olkaria N.E.field. The high transmissivity (kh)calculated for the reservoir using line source solution for the analytical infinite acting model suggest the existence of high permeability flow channels through which fluids are transmitted within reservoir. The pressure response in OW-707 suggest that the double porosity model might give a good match to the data. The storativity values from this tests were one to two orders of magnitude higher than those fiom type-curve matching of single well pressure buildup and suggest that part of the shallow reservoir comprises of two-phase boiling zones. Superposition of the pressure drawdown response in the monitoring wells indicated that the wells were in communication with a pressure support boundary. |