WISE-CASING: Containment and Monitoring Institute (CaMI), Calgary, Canada FEM-DC Model

Wang, Jiannan; Wilt, Michael

doi:10.15121/1560531

Title: WISE-CASING: Containment and Monitoring Institute (CaMI), Calgary, Canada FEM-DC Model

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Abstract

For the model calculation we applied EM3D using completion diagram of CaMI site and a background resistivity consistent with the borehole logs. It was also important to use the accurate position of the return electrode. We note that for the data fit the code also incorporated well casings for well INJ and the other observation well, either OB1 or OB2, in the calculation. In summary, we demonstrate here, for this particular case, that the DC results may be a reasonable approximation to the low frequency EM data collected at CaMI. If this approximation continues to hold, then the extreme computational efficiency offered by the hierarchical modeling used in the DC simulations will permit us to explore far more model complexity, especially the pervasive and troublesome data artifacts that arise when doing EM surveys in mature, culturally developed sites. In Brief, both the low frequency and DC simulation codes provided very consistent results that match the field data really well, indicating their capability to help monitoring borehole integrity with the low frequency EM method.

Authors:

; Wilt, Michael

Publication Date:: Tue Apr 30 00:00:00 EDT 2019

Other Number(s):: 1171

DOE Contract Number:: EE0033208

Research Org.:: USDOE Geothermal Data Repository (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

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

Collaborations:: Lawrence Berkeley National Laboratory

Subject:: 15 Geothermal Energy

Keywords:: geothermal; energy; EM; EM3D; CaMI; Borehole logs; DC model; Sandia; simulation; field data; electrostatic rsponse; electric fields; hierarchical modeling; low frequency EM method; validation; WISE-CASING; containment and monitoring institute; CMC; numerical; FEM; field; data; FDEM; simulated; modeling; modelling; Canada; low frequency; frequency domain; geophysics; borehole; corrosion; integrity; wellbore; well; potential field; excitation; 5 hz; electromagnetic; casing; electric field; forward

Geolocation:: 51.271714233863,-112.46563320312|50.036152670671,-112.46563320312|50.036152670671,-114.31123515625|51.271714233863,-114.31123515625|51.271714233863,-112.46563320312

OSTI Identifier:: 1560531

DOI:: https://doi.org/10.15121/1560531

Project Location:

Citation Formats


                    Wang, Jiannan, and Wilt, Michael. WISE-CASING: Containment and Monitoring Institute (CaMI), Calgary, Canada FEM-DC Model.  United States: N. p., 2019. 
        Web.  doi:10.15121/1560531.

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                    Wang, Jiannan, & Wilt, Michael. WISE-CASING: Containment and Monitoring Institute (CaMI), Calgary, Canada FEM-DC Model.  United States.  doi:https://doi.org/10.15121/1560531

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                    Wang, Jiannan, and Wilt, Michael. 2019.  
"WISE-CASING: Containment and Monitoring Institute (CaMI), Calgary, Canada FEM-DC Model".  United States.  doi:https://doi.org/10.15121/1560531.  https://www.osti.gov/servlets/purl/1560531. Pub date:Tue Apr 30 00:00:00 EDT 2019

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@article{osti_1560531,

  title        = {WISE-CASING: Containment and Monitoring Institute (CaMI), Calgary, Canada FEM-DC Model},

  author       = {Wang, Jiannan and Wilt, Michael},

  abstractNote = {For the model calculation we applied EM3D using completion diagram of CaMI site and a background resistivity consistent with the borehole logs. It was also important to use the accurate position of the return electrode. We note that for the data fit the code also incorporated well casings for well INJ and the other observation well, either OB1 or OB2, in the calculation. In summary, we demonstrate here, for this particular case, that the DC results may be a reasonable approximation to the low frequency EM data collected at CaMI. If this approximation continues to hold, then the extreme computational efficiency offered by the hierarchical modeling used in the DC simulations will permit us to explore far more model complexity, especially the pervasive and troublesome data artifacts that arise when doing EM surveys in mature, culturally developed sites. In Brief, both the low frequency and DC simulation codes provided very consistent results that match the field data really well, indicating their capability to help monitoring borehole integrity with the low frequency EM method.},

  doi          = {10.15121/1560531},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Apr 30 00:00:00 EDT 2019},

  month        = {Tue Apr 30 00:00:00 EDT 2019}

}

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DOI: https://doi.org/10.15121/1560531

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