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Title: Inferring Geothermal Reservoir Processes at the Raft River Geothermal Field, Idaho, USA, Through Modeling InSAR–Measured Surface Deformation

Journal Article · · Journal of Geophysical Research. Solid Earth
DOI:https://doi.org/10.1029/2017JB015223· OSTI ID:1638786

Ground surface deformations detected with Interferometric Synthetic Aperture Radar (InSAR) provide valuable information for inferring subsurface reservoir processes that are difficult to observe directly. This study aims at building a reservoir model that honors the available geological, hydrological and geo-mechanical data and also produces ground surface deformation consistent with InSAR measurements at the Raft River Geothermal Field. In the thermo-hydro-mechanical (THM) coupled model developed, the reservoir deforms as a result of the rock’s poroelastic response to changes in hydrologic pressure and thermal expansion/contraction. The results indicate that the observed deformation is the result of pressure decrease in the deep production reservoir and pressure increase in a shallower reservoir that accommodates the injected fluid (likely in the Salt Lake Formation). The combination of the uplift around injection wells with subsidence around the production wells, affected by the Bridge Fault as a flow barrier, creates a complex pattern of surface deformation in which the center of subtle subsidence significantly deviates from the location of the production wells. A parametric study suggests that (1) the Bridge Fault Zone is likely a flow barrier, (2) the surface deformation appears to be insensitive to the presence of the Narrows Structure, and (3) additional flow barriers likely exist to shape the flow system. This case study demonstrates the utility of a high-fidelity forward model that honors available known information and THM coupled processes in understanding geothermal reservoir characteristics.

Research Organization:
Univ. of Wisconsin, Madison, WI (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Geothermal Technologies Office; USDOE National Nuclear Security Administration (NNSA); Chinese National Natural Science Foundation; National Science Foundation (NSF)
Grant/Contract Number:
EE0006760; AC52-07NA27344; 41572267; 51639008; EE0005510; DGE‐1256259; AC52‐07NA27344
OSTI ID:
1638786
Alternate ID(s):
OSTI ID: 1439391; OSTI ID: 1463826
Report Number(s):
LLNL-JRNL-740529
Journal Information:
Journal of Geophysical Research. Solid Earth, Vol. 123, Issue 5; ISSN 2169-9313
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

References (27)

Permeability upscaling of fault zones in the Aztec Sandstone, Valley of Fire State Park, Nevada, with a focus on slip surfaces and slip bands journal April 2007
Time-series analysis of surface deformation at Brady Hot Springs geothermal field (Nevada) using interferometric synthetic aperture radar journal May 2016
Geodetic measurements and numerical models of transient deformation at Raft River geothermal field, Idaho, USA journal July 2018
Fluid geochemistry at the Raft River geothermal field, Idaho, USA: New data and hydrogeological implications journal July 2013
Subsidence rates at the southern Salton Sea consistent with reservoir depletion: SALTON SEA SUBSIDENCE journal July 2016
Analysis of the Thermal and Hydraulic Stimulation Program at Raft River, Idaho journal January 2017
Synthetic Aperture Radar Interferometry to Measure Earth’s Surface Topography and Its Deformation journal May 2000
Two-dimensional phase unwrapping with use of statistical models for cost functions in nonlinear optimization journal January 2001
The Shuttle Radar Topography Mission journal January 2007
Deformation and seismicity in the Coso geothermal area, Inyo County, California: Observations and modeling using satellite radar interferometry journal September 2000
Thermal drawdown-induced flow channeling in a single fracture in EGS journal May 2016
Recent advances in SAR interferometry time series analysis for measuring crustal deformation journal January 2012
Anthropogenic and natural ground deformation in the Hengill geothermal area, Iceland journal January 2017
Stability and convergence of sequential methods for coupled flow and geomechanics: Drained and undrained splits journal June 2011
Reconnaissance geophysical studies of the geothermal system in southern Raft River Valley, Idaho journal December 1978
Radar interferometry and its application to changes in the Earth's surface journal November 1998
Discrimination of geophysical phenomena in satellite radar interferograms journal June 1995
Correction to «Land subsidence caused by the East Mesa Geothermal Field, California, observed using SAR interferometry» journal August 1998
ENVISAT ASAR data reduction: impact on SAR interferometry journal March 1998
A study of injection-induced mechanical deformation at the In Salah CO2 storage project journal March 2011
Three-dimensional magnetotelluric characterization of the Coso geothermal field journal August 2008
Recent advances on surface ground deformation measurement by means of repeated space-borne SAR observations journal April 2010
A fully coupled method for massively parallel simulation of hydraulically driven fractures in 3-dimensions: FULLY COUPLED PARALLEL SIMULATION OF HYDRAULIC FRACTURES IN 3-D
  • Settgast, Randolph R.; Fu, Pengcheng; Walsh, Stuart D. C.
  • International Journal for Numerical and Analytical Methods in Geomechanics, Vol. 41, Issue 5 https://doi.org/10.1002/nag.2557
journal September 2016
Gas permeability evolution of cataclasite and fault gouge in triaxial compression and implications for changes in fault-zone permeability structure through the earthquake cycle journal January 2004
Geodetic imaging: reservoir monitoring using satellite interferometry: Geodetic imaging journal May 2002
Block-partitioned solvers for coupled poromechanics: A unified framework journal May 2016
The Shuttle Radar Topography Mission text January 2005

Cited By (2)

The effect of fluid compressibility and elastic rock properties on deformation of geothermal reservoirs journal January 2019
Spatio–Temporal Analysis of Deformation at San Emidio Geothermal Field, Nevada, USA Between 1992 and 2010 journal August 2019

Figures / Tables (16)