Skip to content

Commit 8f15ea5

Browse files
WIP - initial Project Cape updates
1 parent 61eb154 commit 8f15ea5

File tree

2 files changed

+122
-0
lines changed

2 files changed

+122
-0
lines changed
Lines changed: 61 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,61 @@
1+
# Fervo Project Cape - extrapolate to 400MWe from https://eartharxiv.org/repository/view/7665/
2+
Reservoir Model, 1
3+
Reservoir Volume Option, 1
4+
Reservoir Density, 2800
5+
Reservoir Depth, 8500 feet, -- https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Fercho.pdf
6+
Reservoir Heat Capacity, 790
7+
Reservoir Thermal Conductivity, 3.05
8+
Number of Fractures, 149
9+
Fracture Shape, 4
10+
Fracture Height, 2000
11+
Fracture Width, 10000
12+
Fracture Separation, 30
13+
Number of Segments, 1
14+
Gradient 1, 74, -- 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)
15+
Plant Outlet Pressure, 1000 psi
16+
Number of Injection Wells, 39, --
17+
Number of Production Wells, 39
18+
Well Geometry Configuration, 4
19+
Has Nonvertical Section, True
20+
Multilaterals Cased, True
21+
Number of Multilateral Sections, 3
22+
Total Nonvertical Length, 4700 feet
23+
Production Flow Rate per Well, 120
24+
Production Well Diameter, 7
25+
Injection Well Diameter, 7
26+
Well Separation, 365 feet
27+
Injection Temperature, 60 degC
28+
Injection Wellbore Temperature Gain, 3
29+
Reservoir Impedance, 0.001
30+
Ramey Production Wellbore Model, 1
31+
Utilization Factor, .9
32+
Water Loss Fraction, 0.02
33+
Maximum Drawdown, 1
34+
Ambient Temperature, 10 degC
35+
Surface Temperature, 10 degC
36+
End-Use Option, 1
37+
Plant Lifetime, 15
38+
Power Plant Type, 2
39+
Circulation Pump Efficiency, 0.80
40+
Exploration Capital Cost, 0
41+
Well Drilling and Completion Capital Cost, 4, -- https://houston.innovationmap.com/fervo-energy-drilling-utah-project-2667300142.html
42+
Reservoir Stimulation Capital Cost, 20
43+
Economic Model, 3
44+
Starting Electricity Sale Price, 0.15
45+
Ending Electricity Sale Price, 1.00
46+
Electricity Escalation Rate Per Year, 0.004053223
47+
Electricity Escalation Start Year, 1
48+
Fraction of Investment in Bonds, .5
49+
Combined Income Tax Rate, .3
50+
Gross Revenue Tax Rate, 0
51+
Inflated Bond Interest Rate, .05
52+
Inflated Equity Interest Rate, .08
53+
Inflation Rate, .02
54+
Investment Tax Credit Rate, 0
55+
Inflation Rate During Construction, 0.05
56+
Property Tax Rate, 0
57+
Time steps per year, 10
58+
Maximum Temperature, 500
59+
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
60+
Production Wellhead Pressure, 325 psi
61+
Reservoir Porosity, 0.0118
Lines changed: 61 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,61 @@
1+
# Fervo Project Cape 'Lite' - match results from https://eartharxiv.org/repository/view/7665/
2+
Reservoir Model, 1
3+
Reservoir Volume Option, 1
4+
Reservoir Density, 2800
5+
Reservoir Depth, 8500 feet, -- https://pangea.stanford.edu/ERE/db/GeoConf/papers/SGW/2024/Fercho.pdf
6+
Reservoir Heat Capacity, 790
7+
Reservoir Thermal Conductivity, 3.05
8+
Number of Fractures, 108
9+
Fracture Shape, 4
10+
Fracture Height, 300
11+
Fracture Width, 400
12+
Fracture Separation, 30
13+
Number of Segments, 1
14+
Gradient 1, 74, -- 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)
15+
Plant Outlet Pressure, 1000 psi
16+
Number of Injection Wells, 2, --
17+
Number of Production Wells, 1
18+
Well Geometry Configuration, 4
19+
Has Nonvertical Section, True
20+
Multilaterals Cased, True
21+
Number of Multilateral Sections, 3
22+
Total Nonvertical Length, 4700 feet
23+
Production Flow Rate per Well, 93
24+
Production Well Diameter, 7
25+
Injection Well Diameter, 7
26+
Well Separation, 365 feet
27+
Injection Temperature, 60 degC
28+
Injection Wellbore Temperature Gain, 3
29+
Reservoir Impedance, 0.01
30+
Ramey Production Wellbore Model, 1
31+
Utilization Factor, .9
32+
Water Loss Fraction, 0.02
33+
Maximum Drawdown, 1
34+
Ambient Temperature, 10 degC
35+
Surface Temperature, 10 degC
36+
End-Use Option, 1
37+
Plant Lifetime, 15
38+
Power Plant Type, 2
39+
Circulation Pump Efficiency, 0.80
40+
Exploration Capital Cost, 0
41+
Well Drilling and Completion Capital Cost, 4.8, -- https://houston.innovationmap.com/fervo-energy-drilling-utah-project-2667300142.html
42+
Reservoir Stimulation Capital Cost, 10
43+
Economic Model, 3
44+
Starting Electricity Sale Price, 0.15
45+
Ending Electricity Sale Price, 1.00
46+
Electricity Escalation Rate Per Year, 0.004053223
47+
Electricity Escalation Start Year, 1
48+
Fraction of Investment in Bonds, .5
49+
Combined Income Tax Rate, .3
50+
Gross Revenue Tax Rate, 0
51+
Inflated Bond Interest Rate, .05
52+
Inflated Equity Interest Rate, .08
53+
Inflation Rate, .02
54+
Investment Tax Credit Rate, 0
55+
Inflation Rate During Construction, 0.05
56+
Property Tax Rate, 0
57+
Time steps per year, 10
58+
Maximum Temperature, 500
59+
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
60+
Production Wellhead Pressure, 325 psi
61+
Reservoir Porosity, 0.0118

0 commit comments

Comments
 (0)