U.S. Department of EnergyOffice of Scientific and Technical Information
Material Properties for Brady Hot Springs Nevada USA from PoroTomo Project
Abstract
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 themore »
- Authors:
-
- University of Wisconsin
- Publication Date:
- Other Number(s):
- 1124
- DOE Contract Number:
- EE0006760
- Research Org.:
- DOE Geothermal Data Repository; University of Wisconsin
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)
- Collaborations:
- University of Wisconsin
- Subject:
- 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
- OSTI Identifier:
- 1501544
- DOI:
- https://doi.org/10.15121/1501544
Citation Formats
Feigl, Kurt L. Material Properties for Brady Hot Springs Nevada USA from PoroTomo Project. United States: N. p., 2019.
Web. doi:10.15121/1501544.
Feigl, Kurt L. Material Properties for Brady Hot Springs Nevada USA from PoroTomo Project. United States. doi:https://doi.org/10.15121/1501544
Feigl, Kurt L. 2019.
"Material Properties for Brady Hot Springs Nevada USA from PoroTomo Project". United States. doi:https://doi.org/10.15121/1501544. https://www.osti.gov/servlets/purl/1501544. Pub date:Tue Mar 05 23:00:00 EST 2019
@article{osti_1501544,
title = {Material Properties for Brady Hot Springs Nevada USA from PoroTomo Project},
author = {Feigl, Kurt L.},
abstractNote = {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.},
doi = {10.15121/1501544},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 05 23:00:00 EST 2019},
month = {Tue Mar 05 23:00:00 EST 2019}
}