EGS Collab Experiment 2 Parameter Table

Collab Overview Index SURF Experiment 1 Experiment 2 Experiment 3 Shift Reports Core Logs Papers

Amphibolite 4100L & 4850 L
Parameter	value	unit	source	Level
Unconfined Compressive Strengths	110 (TH4100)	MPa	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
	295 (TV4100)
Unconfined Compressive Strengths	182.71	MPa	Hlaydysz, 2009; Lachel Felice, 2009	4850L
	81.7
Young's Modulus	89.8 - 98.0	GPa	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
Young’s Modulus	89	GPa	DUSEL, RESPEC 2010	4850L
	110		SUSEL, RESPEC 2010
Poisson Ratio	0.17 - 0.18		Ben Jahnke, Hiroki Sone, Herb Wang	4100L
Poisson Ratio	0.23		DUSEL, RESPEC 2010	4850L
	0.28		SUSEL, RESPEC 2010
	0.3	GPa	Golder Associates, Jan. 2010
Shear Modulus	38.0 - 41.8	GPa	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
Shear Modulus	30	GPa	DUSEL, RESPEC 2010	4850L
Bulk Density	3.04	g/cm^3	https://foundry.openei.org/5/modelparams	4100L
	3.02
Bulk Density	2.925	g/cm^3	DUSEL, RESPEC 2010	4850L
	3.01	g/cm^3	SUSEL, RESPEC 2010
	2.7-3.1	g/cm^3	Golder Associates, 2009
Uniaxial Compressive Strength	115	MPa	DUSEL, RESPEC 2010	4850L
	200	MPa	SUSEL, RESPEC 2010
P-wave velocity	5660 - 5882	m/s	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
P-wave velocity	~4000-7000	m/s	Roggenthen & Berry 2016	4850L
S-wave velocity	3529 - 3703	m/s	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
S-wave velocity	3,532.00	m/s	Roggenthen & Koch 2013, avg value	4850L
Tensile Strength	14	MPa	DUSEL, RESPEC 2010	4850L
Differential Stress	97.7 - 105.5	GPa	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
Thermal Conductivity	2.55	W/m-◦K	https://foundry.openei.org/5/modelparams	4100L
	3.81
Heat Flow	0.08	W/m^2	https://foundry.openei.org/5/modelparams	4100L
Maximum Potential In-Situ Shear Stress	7.7	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Vertical In-Situ Stress	36	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Horizontal In-Situ Stress 1	37.3	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Horizontal In-Situ Stress 2	18.3	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Critical Pressure	9.5	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Maximum Pressure	36	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Cohesion	8.2	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L

 

Rhyolite 4100L &4850L

Rhyolite
Parameter	Value	Unit	Source	Level
P-wave velocity	5172 - 5263	m/s	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
P-wave velocity	5189	m/s	DUSEL, RESPEC 2010	4850L
S-wave velocity	3125 - 3158	m/s	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
S-wave velocity	3094	m/s	DUSEL, RESPEC 2010	4850L
Young's Modulus	59.2 - 60.8	GPa	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
Young’s Modulus	70	GPa	DUSEL, RESPEC 2010	4850L
Poisson Ratio	0.21 - 0.22		Ben Jahnke, Hiroki Sone, Herb Wang	4100L
Poisson Ratio	0.21		DUSEL, RESPEC 2010	4850L
Shear Modulus	24.4 - 24.9	GPa	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
Shear Modulus	31	GPa	DUSEL, RESPEC 2010	4850L
Differential Stress	66.9 - 69.2	GPa	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
Unconfined Compressive Strengths	329	GPa	Ben Jahnke, Hiroki Sone, Herb Wang	4100L
	402
Unconfined Compressive Strengths	165.47	MPa	Hlaydysz, 2009; Lachel Felice, 2009	4850L
Average bulk density	25-2.6	g/cm^3	Golder Associates 2009	4850L
Uniaxial Compressive Strength	111	MPa	DUSEL, RESPEC 2010	4850L
Tensile Strength	10	MPa	DUSEL, RESPEC 2010	4850L
Maximum Potential In Situ Shear Stress	7.7	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Vertical In-Situ Stress	36	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Horizontal In-Situ Stress 1	37.3	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Horizontal In-Situ Stress 2	18.3	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Critical Pressure	9.5	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Maximum Pressure	36	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L
Cohesion	11.3	MPa	Frash, L.P., Welch, N.J., Carey, J.W. (2019). Geomechanical evaluation of natural shear fractures in the EGS Collab Experiment 1 test bed. Proceedings of the 53rd US Rock Mechanics / Geomechanics Symposium Frash, L.P., Carey, J.W., Welch, N.J., EGS Collab Team. (2019). EGS Collab Experiment geomechanical and hydrological properties by triaxial direct shear. Proceedings of the 44th Workshop on Geothermal Reservoir Engineering.	4100L

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