Elevation Grid for top Columbia River Basalt (CRBG) in the Portland Basin used in DDU Feasibility Study

Bershaw, John; Scanlon, Darby

doi:10.15121/1493810

Title: Elevation Grid for top Columbia River Basalt (CRBG) in the Portland Basin used in DDU Feasibility Study

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Abstract

The Portland Basin is a prime location to assess the feasibility of DDU-TES because natural geologic conditions provide thermal and hydraulic separation from overlying aquifers that would otherwise sweep away stored heat. Under the Portland Basin, the lower Columbia River Basalt Group (CRBG) aquifers contain brackish water (1,000-10,000 mg/L TDS), indicating low groundwater flow rates and poor connection with the overlying regional aquifer. Further, CRBG lavas tend to have comparatively low thermal conductivity, indicating that the 400-1,000 ft thick CRBG may be an effective thermal barrier to the overlying aquifer. A temporally and spatially limited previous study of a Portland Basin CRBG aquifer demonstrated that the injection of waste heat resulted in an increase in temperature by more than a factor of two, indicating a high potential for storing heat. This data submission includes ASCII grid surfaces for the Portland and Tualatin Basins including a DEM of modern topography, the top of Columbia River Basalt (CRB), the base of CRB, and basement. It also includes three isochore (thickness) maps between these intervals. In addition, there is an ArcGIS attribute table for associated data points, a map of data types used to constrain the top of CRB, and cross-sections, all mademore »« less

Authors:

Bershaw, John; Scanlon, Darby

Portland State University

Publication Date:: Sat Dec 01 04:00:00 UTC 2018

Other Number(s):: 1104

DOE Contract Number:: EE0008104

Research Org.:: DOE Geothermal Data Repository; Portland State University

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)

Collaborations:: Portland State University

Subject:: 15 GEOTHERMAL ENERGY; ArcGIS; CRBG; Columbia River Basalt Group; DDU; DDU-TES; DEM; Deep Direct-Use; GIS; Oregon; Portland; Portland Basin; TES; cross section; cross-section; digital elevation map; elevations; energy; feasibility; geology; geospatial data; geothermal; map; outcrop; seismic; structure map; survey; thermal energy storage; well data

OSTI Identifier:: 1493810

DOI:: https://doi.org/10.15121/1493810

Citation Formats


                    Bershaw, John, and Scanlon, Darby. Elevation Grid for top Columbia River Basalt (CRBG) in the Portland Basin used in DDU Feasibility Study.  United States: N. p., 2018. 
        Web.  doi:10.15121/1493810.

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                    Bershaw, John, & Scanlon, Darby. Elevation Grid for top Columbia River Basalt (CRBG) in the Portland Basin used in DDU Feasibility Study.  United States.  doi:https://doi.org/10.15121/1493810

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                    Bershaw, John, and Scanlon, Darby. 2018.  
"Elevation Grid for top Columbia River Basalt (CRBG) in the Portland Basin used in DDU Feasibility Study".  United States.  doi:https://doi.org/10.15121/1493810.  https://www.osti.gov/servlets/purl/1493810. Pub date:Sat Dec 01 04:00:00 UTC 2018

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@article{osti_1493810,

  title        = {Elevation Grid for top Columbia River Basalt (CRBG) in the Portland Basin used in DDU Feasibility Study},

  author       = {Bershaw, John and Scanlon, Darby},

  abstractNote = {The Portland Basin is a prime location to assess the feasibility of DDU-TES because natural geologic conditions provide thermal and hydraulic separation from overlying aquifers that would otherwise sweep away stored heat. Under the Portland Basin, the lower Columbia River Basalt Group (CRBG) aquifers contain brackish water (1,000-10,000 mg/L TDS), indicating low groundwater flow rates and poor connection with the overlying regional aquifer. Further, CRBG lavas tend to have comparatively low thermal conductivity, indicating that the 400-1,000 ft thick CRBG may be an effective thermal barrier to the overlying aquifer. A temporally and spatially limited previous study of a Portland Basin CRBG aquifer demonstrated that the injection of waste heat resulted in an increase in temperature by more than a factor of two, indicating a high potential for storing heat. This data submission includes ASCII grid surfaces for the Portland and Tualatin Basins including a DEM of modern topography, the top of Columbia River Basalt (CRB), the base of CRB, and basement. It also includes three isochore (thickness) maps between these intervals. In addition, there is an ArcGIS attribute table for associated data points, a map of data types used to constrain the top of CRB, and cross-sections, all made using IHS Kingdom Suite, Petrosys PRO, ESRI ArcGIS, and Adobe Illustrator software.},

  doi          = {10.15121/1493810},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat Dec 01 04:00:00 UTC 2018},

  month        = {Sat Dec 01 04:00:00 UTC 2018}

}

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DOI: https://doi.org/10.15121/1493810

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