Description:
To prioritize information for archiving and to determine the
applicability of the Fenton Hill experience to the future
development of Enhanced Geothermal Systems (EGS), an
integrated review was made of five categories of Fenton Hill
information: hydraulic fracturing data, well logs, seismic
data, flow test data and tracer test data. Major experiments
were identified, the methods of data collection and analysis
were determined, the location and format of the data were
determined, and further analyses that would yield information
of value to EGS developers were suggested. Such analyses
would be directed toward the determination of: I) if and how
the state of stress in the reservoir changed during sequential
fracturing jobs; 2) how the orientation of fractures changed
with depth and location; 3) how the reservoir size increased as
fracturing and flow testing operations proceeded; 4) how the
hydraulic properties and heat-transfer characteristics of the
reservoir varied with changes in operating conditions; and 5)
how the Phase II reservoir (the deeper and hotter of the two
reservoirs developed) would behave over the long term under
various operating conditions.