Hawaii Play Fairway Analysis: Lanai Resistivity and Density 3D Inversion Models

Lautze, Nicole; Ito, Garrett; Wallin, Erin

doi:10.15121/1874040

Title: Hawaii Play Fairway Analysis: Lanai Resistivity and Density 3D Inversion Models

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Abstract

To prepare for its third phase, the Hawaii Play Fairway project conducted groundwater sampling and analyses in ten locations in the Hawaiian islands, magnetotelluric (MT) and gravity surveys, as well as calculations of 3D subsurface stress due to the weight of the rock underlying the topography of the volcano. The subsurface stresses were used to evaluate the potential for fracture-induced permeability. Inversions of the MT and gravity data produce 3D models of resistivity and density, respectively, on Lanai, across Haleakala's SW rift (Maui), and surrounding Mauna Kea (Hawaii Island). The project developed and applied a new method for incorporating depth information about resistivity, density, and potential for fracture-induced permeability into the statistical method for computing resource probability in these three focus areas. The project then incorporated the new groundwater results with the new geophysical results and the calculations of potential for fracture-induced permeability to produce updated maps of resource probability and confidence. These results were used to identify target sites for exploratory drilling. Spreadsheet information: Each sheet contains data for a particular depth in kilometers. Positive depths are above sea level, and negative below. For more information, go to the Hawaii Groundwater and Geothermal Resources Center website linked in themore » resources.« less

Authors:: Lautze, Nicole; Ito, Garrett; Wallin, Erin

Publication Date:: Mon Jun 01 00:00:00 EDT 2020

Other Number(s):: 1388

DOE Contract Number:: EE0006729

Research Org.:: USDOE Geothermal Data Repository (United States); Univ. of Hawaii, Honolulu, HI (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Geothermal Technologies Program (EE-4G)

Collaborations:: University of Hawaii

Subject:: 15 Geothermal Energy

Keywords:: geothermal; energy; Hawaii; Lanai; magnetotelluric; gravity; Haleakala; Maui; Mauna Kea; MT; ma; survey; data; test; stress; subsurface; volcano; resistivity; density; fracture induced permeability; EGS; enhanced geothermal system; resource; potential; resource probability; exploratory drilling

Geolocation:: 21.283822542066,-154.6883|18.790237015042,-154.6883|18.790237015042,-157.20866132813|21.283822542066,-157.20866132813|21.283822542066,-154.6883

OSTI Identifier:: 1874040

DOI:: https://doi.org/10.15121/1874040

Project Location:

Citation Formats


                    Lautze, Nicole, Ito, Garrett, and Wallin, Erin. Hawaii Play Fairway Analysis: Lanai Resistivity and Density 3D Inversion Models.  United States: N. p., 2020. 
        Web.  doi:10.15121/1874040.

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                    Lautze, Nicole, Ito, Garrett, & Wallin, Erin. Hawaii Play Fairway Analysis: Lanai Resistivity and Density 3D Inversion Models.  United States.  doi:https://doi.org/10.15121/1874040

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                    Lautze, Nicole, Ito, Garrett, and Wallin, Erin. 2020.  
"Hawaii Play Fairway Analysis: Lanai Resistivity and Density 3D Inversion Models".  United States.  doi:https://doi.org/10.15121/1874040.  https://www.osti.gov/servlets/purl/1874040. Pub date:Mon Jun 01 00:00:00 EDT 2020

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@article{osti_1874040,

  title        = {Hawaii Play Fairway Analysis: Lanai Resistivity and Density 3D Inversion Models},

  author       = {Lautze, Nicole and Ito, Garrett and Wallin, Erin},

  abstractNote = {To prepare for its third phase, the Hawaii Play Fairway project conducted groundwater sampling and analyses in ten locations in the Hawaiian islands, magnetotelluric (MT) and gravity surveys, as well as calculations of 3D subsurface stress due to the weight of the rock underlying the topography of the volcano. The subsurface stresses were used to evaluate the potential for fracture-induced permeability. Inversions of the MT and gravity data produce 3D models of resistivity and density, respectively, on Lanai, across Haleakala's SW rift (Maui), and surrounding Mauna Kea (Hawaii Island). The project developed and applied a new method for incorporating depth information about resistivity, density, and potential for fracture-induced permeability into the statistical method for computing resource probability in these three focus areas. The project then incorporated the new groundwater results with the new geophysical results and the calculations of potential for fracture-induced permeability to produce updated maps of resource probability and confidence. These results were used to identify target sites for exploratory drilling. Spreadsheet information: Each sheet contains data for a particular depth in kilometers. Positive depths are above sea level, and negative below. For more information, go to the Hawaii Groundwater and Geothermal Resources Center website linked in the resources.},

  doi          = {10.15121/1874040},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Mon Jun 01 00:00:00 EDT 2020},

  month        = {Mon Jun 01 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.15121/1874040

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