Dixie Valley Engineered Geothermal System Exploration Methodology Project, Baseline Conceptual Model Report

The Engineered Geothermal System (EGS) Exploration Methodology Project is developing an exploration approach for EGS through the integration of geoscientific data. The overall project area is 2500km2 with the Calibration Area (Dixie Valley Geothermal Wellfield) being about 170km2.

The Final Scientific Report (FSR) is submitted in two parts (I and II).

FSR part I presents (1) an assessment of the readily available public domain data and some proprietary data provided by terra-gen power, llc, (2) a re-interpretation of these data as required, (3) an exploratory geostatistical data analysis, (4) the baseline geothermal conceptual model, and (5) the EGS favorability/trust mapping. The conceptual model presented applies to both the hydrothermal system and EGS in the Dixie Valley region.

FSR Part II presents (1) 278 new gravity stations; (2) enhanced gravity-magnetic modeling; (3) 42 new ambient seismic noise survey stations; (4) an integration of the new seismic noise data with a regional seismic network; (5) a new methodology and approach to interpret this data; (5) a novel method to predict rock type and temperature based on the newly interpreted data; (6) 70 new magnetotelluric (MT) stations; (7) an integrated interpretation of the enhanced MT data set; (8) the results of a 308 station soil CO2 gas survey; (9) new conductive thermal modeling in the project area; (10) new convective modeling in the Calibration Area; (11) pseudo-convective modeling in the Calibration Area; (12) enhanced data implications and qualitative geoscience correlations at three scales (a) Regional, (b) Project, and (c) Calibration Area; (13) quantitative geostatistical exploratory data analysis; and (14) responses to nine questions posed in the proposal for this investigation.

Enhanced favorability/trust maps were not generated because there was not a sufficient amount of new, fully-vetted (see below) rock type, temperature, and stress data. The enhanced seismic data did generate a new method to infer rock type and temperature (However, in the opinion of the Principal Investigator for this project, this new methodology needs to be tested and evaluated at other sites in the Basin and Range before it is used to generate the referenced maps. As in the baseline conceptual model, the enhanced findings can be applied to both the hydrothermal system and EGS in the Dixie Valley region).

- Originated 01/02/2014 by AltaRock Energy Inc.

11 Resources

 NameSizeTypeResource Description
 Part I Final Scientific Report.pdf70430704image_documentBaseline Conceptual Model of the EGS Exploration Methodology Project (using the Dixie Valley Geothermal System, Nevada as a Calibration Site).
 Part II Final Scientific Report.pdf125106311image_documentEnhanced Conceptual Model of the EGS Exploration Methodology Project (using the Dixie Valley Geothermal System, Nevada as a Calibration Site).
 Gravity Stations and Data.xlsx28810dataLocation of gravity stations and complete Bouguer anomaly calculatd at 2.67 gm/cc
 Magnetotelluric Metadata.doc25088text_documentDescription of magnetotelluric data acquisition and processing methods
 Magnetotelluric station locations.txt3048text_documentMagnetotelluric station locations
 Magnetotelluric Data.txt844692dataMagnetotelluric data aquired and used for inversion
 Magnetotelluric Inversion Data.txt726217dataMagnetotelluric Inversion Data
 Magnetotelluric Survey Raw Data.zip171743376archiveRaw Data from the Megnetotelluric Survey. Also includes EDI files, GPS data, a Logistics Report, Pictures, and additional supporting files.
 Appendix 10 Seismic Data and Models.zip113989050archiveFigures, data files, and source code for seismic velocity model
 Calibration Area enhanced data Geostatistics.xlsx2751590dataGeostatistical analysis of Calibration Area
 Additional Files.txt43836458text_documentBecause the originally submitted fileset was too large, some files were removed and may be available by request to the submitter. This file includes a list of the removed filed.

Keywords

geothermal Dixie Valley EGS Hydrothermal System Favorability/Trust Mapping Final Scientific Report EGS Exploration Methodology Bob Karlin Gravity Station Location Complete Bouguer Anomaly Phil Wannamaker Magnetotellurics Metadata Data Inversion Quantec Ileana Tibulec Seismic Velocity Model Fletcher H Ibser Geostatistics geophysics

Submitted

•  JAN  • 9 2014

AltaRock Energy Inc

by , 510.290.9247

Authors

  • Joe Iovenitti, AltaRock Energy Inc

License

Creative Commons Attribution 4.0

Cite this dataset:

AltaRock Energy Inc. (2014). Dixie Valley Engineered Geothermal System Exploration Methodology Project, Baseline Conceptual Model Report [data set]. Retrieved from https://gdr.openei.org/submissions/273. https://dx.doi.org/10.15121/1360723

About this dataset

273
DOI 10.15121/1360723
status Publicly accessible
last updated 7 months ago

DOE Project

EE0002778 Dixie Valley Engineered Geothermal System Exploration Methodology Project

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