Flow Test At Fenton Hill HDR Geothermal Area (Dash, 1989)
From Open Energy Information
Exploration Activity: Flow Test At Fenton Hill HDR Geothermal Area (Dash, 1989)
| Exploration Activity Details | |
|---|---|
| Location | Fenton Hill HDR Geothermal Area |
| Exploration Technique | Flow Test |
| Activity Date | 1986 - 1986 |
| Usefulness | useful |
| DOE-funding | Unknown |
The given value was not understood.
The Phase II reservoir was flow tested in 1986 during the Initial Closed-Loop Flow Test (ICFT), and again from 1992 to 1995 during the Long-Term Flow Test (LTFT). During the ICFT, cold water was injected into well EE-3A, and hot water was successfully recovered from EE-2 at temperatures as hot as 192°C, with production of up to 10 
. Produced waters were cooled to 20°C using a water-to-air heat exchanger prior to reinjection. The ICFT also showed that the flow impedance of the Phase II reservoir was concentrated at the production wellbore, with less than 10% of the overall flow impedance located in the body of the reservoir itself. Low impedance was also encountered at the injection well, accounting for less than 1% of the overall impedance. These effects relate to pressure-propping of flowing joints within the reservoir by a mean pressure of 27.5 MPa above hydrostatic (compared to 10 MPa least principal earth stress) and to thermal dilation near the injection well.
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