Material Properties for Brady Hot Springs Nevada USA from PoroTomo Project

Dataset · Wed Mar 06 04:00:00 EST 2019

DOI:https://doi.org/10.15121/1501544· OSTI ID:1501544

Feigl, Kurt L. ^[1]

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1. University of Wisconsin

The PoroTomo team has completed inverse modeling of the three data sets (seismology, geodesy, and hydrology) individually, as described previously. The estimated values of the material properties are registered on a three-dimensional grid with a spacing of 25 meters between nodes. The material properties are listed an Excel file. Figures show planar slices in three sets: horizontal slices in a planes normal to the vertical Z axis (Z normal), vertical slices in planes perpendicular to the dominant strike of the fault system (X normal), and vertical slices in planes parallel to the dominant strike of the fault system (Y normal). The results agree on the following points. The material is unconsolidated and/or fractured, especially in the shallow layers. The structural trends follow the fault system in strike and dip. The geodetic measurements favor the hypothesis of thermal contraction. Temporal changes in pressure, subsidence rate, and seismic amplitude are associated with changes in pumping rates during the four stages of the deployment in 2016. The modeled hydraulic conductivity is high in fault damage zones. All the observations are consistent with the conceptual model: highly permeable conduits along faults channel fluids from shallow aquifers to the deep geothermal reservoir tapped by the production wells.

• Research Organization: DOE Geothermal Data Repository; University of Wisconsin
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)
• Contributing Organization: University of Wisconsin
• DOE Contract Number: EE0006760
• OSTI ID: 1501544
• Report Number(s): 1124
• Availability: [e-mail]
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
3D
Brady Hot Springs
Nevada
Poissons ratio
Youngs modulus
conceptual
conduit
density
dip
energy
fault
fluid
fractured
geodesy
geology
geothermal
hydraulic conductivity
hydrology
interferometry
inversion
lithology
material
model
modeling
p-wave
permeable
poroelastic tomography
porotomo
pressure
properties
property
pumping
rate
reservoir
s-wave
seismic
seismic amplitude
seismology
shallow
strain rate
strike
structural
subsidence
temperature
thermal contraction
trends
unconsolidated
velocity
zone