softwareengineerprogrammer
commented
1 day ago # Fervo Project Cape
# Norbeck J.H., Gradl C., and Latimer T. 2024.
# "Deployment of Enhanced Geothermal System technology leads to rapid cost reductions and performance improvements"
# https://doi.org/10.31223/X5VH8C
Reservoir Model, 1
Reservoir Volume Option, 1
Reservoir Density, 2800
Reservoir Depth, 8500 feet, -- https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Fercho.pdf
Reservoir Heat Capacity, 1000
Reservoir Thermal Conductivity, 2.7
Number of Fractures, 100
Fracture Shape, 4
Fracture Height, 300
Fracture Width, 2400
Fracture Separation, 15
Number of Segments, 1
Gradient 1, 73, -- temperature at 8500 ft: 200 degC (https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Fercho.pdf); 228.89 degC @ 9824 ft (https://doi.org/10.31223/X5VH8C)
Plant Outlet Pressure, 1000 psi
Number of Injection Wells, 12, -- Reservoir artificially increased by a factor of 12 (12 doublets)
Number of Production Wells, 12
Well Geometry Configuration, 4
Has Nonvertical Section, True
Multilaterals Cased, True
Number of Multilateral Sections, 14
Total Nonvertical Length, 5000 feet
Production Flow Rate per Well, 98
Production Well Diameter, 8
Injection Well Diameter, 8
Well Separation, 365 feet
Injection Temperature, 60 degC
Injection Wellbore Temperature Gain, 3
Reservoir Impedance, 0.01
Ramey Production Wellbore Model, 1
Utilization Factor, .9
Water Loss Fraction, 0.02
Maximum Drawdown, 1
Ambient Temperature, 10 degC
Surface Temperature, 10 degC
End-Use Option, 1
Plant Lifetime, 15
Power Plant Type, 2
Circulation Pump Efficiency, 0.80
Exploration Capital Cost, 0
Well Drilling and Completion Capital Cost, 4.8, -- https://houston.innovationmap.com/fervo-energy-drilling-utah-project-2667300142.html
Reservoir Stimulation Capital Cost, 10
Economic Model, 3
Starting Electricity Sale Price, 0.15
Ending Electricity Sale Price, 1.00
Electricity Escalation Rate Per Year, 0.004053223
Electricity Escalation Start Year, 1
Fraction of Investment in Bonds, .5
Combined Income Tax Rate, .3
Gross Revenue Tax Rate, 0
Inflated Bond Interest Rate, .05
Inflated Equity Interest Rate, .08
Inflation Rate, .02
Investment Tax Credit Rate, 0
Inflation Rate During Construction, 0.05
Property Tax Rate, 0
Time steps per year, 10
Maximum Temperature, 500
Surface Plant Capital Cost Adjustment Factor, 0.78, -- pad drilling reduces surface CAPEX by 22% https://www.resfrac.com/blog/digesting-the-bonkers-incredible-off-the-charts-spectacular-results-from-the-fervo-and-forge-enhanced-geothermal-projects
Production Wellhead Pressure, 325 psi
See
Example used for workshop is presumably a good starting point: https://gtp.scientificwebservices.com/geophires/?shared-geophires-result-id=2bfa1f9f-d50b-476e-a05f-90e7f6a84ac1