U.S. Department of EnergyOffice of Scientific and Technical Information
West Flank Coso FORGE: Magnetotelluric Inversion
Abstract
The Coso Magnetotelluric (MT) dataset of which the West Flank FORGE MT data is a subset, was collected by Schlumberger / WesternGeco and initially processed by the WesternGeco GeoSolutions Integrated EM Center of Excellence in Milan, Italy. The 2011 data was based on 99 soundings that were centered on the West Flank geothermal prospect. The new soundings along with previous data from 2003 and 2006 were incorporated into a 3D inversion. Full impedance tensor data were inverted in the 1-3000 Hz range. The modelling report notes several noise sources, specifically the DC powerline that is 20,000 feet west of the survey area, and may have affected data in the 0.02 to 10 Hz range. Model cell dimensions of 450 x 450 x 65 feet were used to avoid computational instability in the 3D model. The fit between calculated and observed MT values for the final model run had an RMS value of 1.807. The included figure from the WesternGeco report shows the sounding locations from the 2011, 2006 and 2003 surveys.
- Authors:
- Publication Date:
- Other Number(s):
- 808
- DOE Contract Number:
- EE0007156
- Research Org.:
- USDOE Geothermal Data Repository (United States); Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)
- Collaborations:
- Sandia National Laboratories
- Subject:
- 15 Geothermal Energy
- Keywords:
- geothermal; FORGE; EGS; MT; West Flank; Inversion; 3D; survey map; magnetotelluric; Coso; geophysics; inverse; model; report
- Geolocation:
- 36.429464285107,-117.43145351562|35.670911408642,-117.43145351562|35.670911408642,-118.21138164063|36.429464285107,-118.21138164063|36.429464285107,-117.43145351562
- OSTI Identifier:
- 1287567
- DOI:
- https://doi.org/10.15121/1287567
- Project Location:
-
Citation Formats
Blankenship, Doug. West Flank Coso FORGE: Magnetotelluric Inversion. United States: N. p., 2016.
Web. doi:10.15121/1287567.
Blankenship, Doug. West Flank Coso FORGE: Magnetotelluric Inversion. United States. doi:https://doi.org/10.15121/1287567
Blankenship, Doug. 2016.
"West Flank Coso FORGE: Magnetotelluric Inversion". United States. doi:https://doi.org/10.15121/1287567. https://www.osti.gov/servlets/purl/1287567. Pub date:Mon May 16 00:00:00 EDT 2016
@article{osti_1287567,
title = {West Flank Coso FORGE: Magnetotelluric Inversion},
author = {Blankenship, Doug},
abstractNote = {The Coso Magnetotelluric (MT) dataset of which the West Flank FORGE MT data is a subset, was collected by Schlumberger / WesternGeco and initially processed by the WesternGeco GeoSolutions Integrated EM Center of Excellence in Milan, Italy. The 2011 data was based on 99 soundings that were centered on the West Flank geothermal prospect. The new soundings along with previous data from 2003 and 2006 were incorporated into a 3D inversion. Full impedance tensor data were inverted in the 1-3000 Hz range. The modelling report notes several noise sources, specifically the DC powerline that is 20,000 feet west of the survey area, and may have affected data in the 0.02 to 10 Hz range. Model cell dimensions of 450 x 450 x 65 feet were used to avoid computational instability in the 3D model. The fit between calculated and observed MT values for the final model run had an RMS value of 1.807. The included figure from the WesternGeco report shows the sounding locations from the 2011, 2006 and 2003 surveys.},
doi = {10.15121/1287567},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 16 00:00:00 EDT 2016},
month = {Mon May 16 00:00:00 EDT 2016}
}