Search Results - "Commer, Michael"

New advances in three-dimensional controlled-source electromagnetic inversion by Commer, Michael, Newman, Gregory A.

“…New techniques for improving both the computational and imaging performance of the three-dimensional (3-D) electromagnetic inverse problem are presented. A…”
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The Kimberlina synthetic multiphysics dataset for CO2 monitoring investigations by Alumbaugh, David, Gasperikova, Erika, Crandall, Dustin, Commer, Michael, Feng, Shihang, Harbert, William, Li, Yaoguo, Lin, Youzuo, Samarasinghe, Savini

“…We present a synthetic multi‐scale, multi‐physics dataset constructed from the Kimberlina 1.2 CO2 reservoir model based on a potential CO2 storage site in the…”
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Enhanced Multi-Dimensional Inversion Through Target-Specific Inversion Parameter Bounds With an Application to Crosswell Electromagnetic for Sequestration Monitoring by Commer, Michael, Alumbaugh, David L., Hoversten, G. Michael, Um, Evan S., Vasco, Donald W., Wilt, Michael, Nichols, Edward, Marchesini, Pierpaolo, Macquet, Marie

“…In geophysical inversions, lower and upper model parameter bounds are a means of solution stabilization. Further, constraints that intend to let only…”
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A semblance measure for model comparison by Commer, Michael

“…SUMMARY Algorithmic and computational advances have made it possible that geophysical survey and earth model design can be aided by many systematic trial…”
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An accelerated time domain finite difference simulation scheme for three-dimensional transient electromagnetic modeling using geometric multigrid concepts by Commer, Michael, Newman, Gregory A.

“…The fact that the transient electromagnetic (TEM) field is smoothed gradually in space with time allows for a reduced spatial sampling rate of the EM field. On…”
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New results on the resistivity structure of Merapi Volcano (Indonesia), derived from three-dimensional restricted inversion of long-offset transient electromagnetic data by Commer, Michael, Helwig, Stefan L., Hördt, Andreas, Scholl, Carsten, Tezkan, Bülent

“…Three long-offset transient electromagnetic (LOTEM) surveys were carried out at the active volcano Merapi in Central Java (Indonesia) during the years 1998,…”
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Improved geophysical monitoring of carbon sequestration through parameter linkage to reservoir modeling by Commer, Michael, Gasperikova, Erika, Doughty, Christine

“…•Reservoir modeling can improve geophysical monitoring of carbon sequestration.•Inversion parameter constraints improve the geophysical model…”
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Interpretation of long-offset transient electromagnetic data from Mount Merapi, Indonesia, using a three-dimensional optimization approach by Commer, Michael, Helwig, Stefan L., Hördt, Andreas, Tezkan, Bülent

“…In the years 1998, 2000, and 2001, long‐offset transient electromagnetic (LOTEM) surveys were carried out at the active volcano Merapi in Central Java. The…”
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Three-dimensional fracture continuum characterization aided by surface time-domain electromagnetics and hydrogeophysical joint inversion—proof-of-concept by Commer, Michael, Finsterle, Stefan, Hoversten, G. Michael

“…Efficient and safe production of hydraulically fractured reservoirs benefits from the prediction of their geometrical attributes. Geophysical methods have the…”
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Efficient pre-conditioned iterative solution strategies for the electromagnetic diffusion in the Earth: finite-element frequency-domain approach by Um, Evan Schankee, Commer, Michael, Newman, Gregory A.

“…We formulate a 3-D finite-element frequency-domain (FEFD) solution for electromagnetic (EM) diffusion and present efficient solution strategies. A system of…”
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Finite element modelling of transient electromagnetic fields near steel-cased wells by Um, Evan Schankee, Commer, Michael, Newman, Gregory A., Hoversten, G. Michael

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Deep learning multiphysics network for imaging CO2 saturation and estimating uncertainty in geological carbon storage by Um, Evan Schankee, Alumbaugh, David, Commer, Michael, Feng, Shihang, Gasperikova, Erika, Li, Yaoguo, Lin, Youzuo, Samarasinghe, Savini

“…Multiphysics inversion exploits different types of geophysical data that often complement each other and aims to improve overall imaging resolution and reduce…”
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NOTICE OF RETRACTION: The Journal regretfully retracts the following paper: A Feasibility Study of a Top-Casing Electric Source Method for Detecting and Imaging a Shallow Hydraulically-Active Fractured Zone: 3D Finite Element Direct Current Modeling Approach by Um, Evan Schankee, Kim, Jihoon, Kim, Seung-Sep, Commer, Michael

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FDTD modeling of induced polarization phenomena in transient electromagnetics by Commer, Michael, Petrov, Petr V., Newman, Gregory A.

“…The finite-difference time-domain scheme is augmented in order to treat the modelling of transient electromagnetic signals containing induced polarization…”
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Deep learning multiphysics network for imaging CO 2 saturation and estimating uncertainty in geological carbon storage by Um, Evan Schankee, Alumbaugh, David, Commer, Michael, Feng, Shihang, Gasperikova, Erika, Li, Yaoguo, Lin, Youzuo, Samarasinghe, Savini

“…Abstract Multiphysics inversion exploits different types of geophysical data that often complement each other and aims to improve overall imaging resolution…”
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Hydro-frac monitoring using ground time-domain electromagnetics by Hoversten, G. Michael, Commer, Michael, Haber, Eldad, Schwarzbach, Christoph

“…ABSTRACT As motivation for considering new electromagnetic techniques for hydraulic fracture monitoring, we develop a simple financial model for the net…”
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Three-dimensional controlled-source electromagnetic and magnetotelluric joint inversion by Commer, Michael, Newman, Gregory A.

“…The growing use of the controlled-source electromagnetic method (CSEM) and magnetotellurics (MT) for exploration applications has been driving the development…”
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Three-dimensional gravity modelling and focusing inversion using rectangular meshes: Modelling Methods for Geophysical Imaging: Trends and Perspectives by COMMER, Michael

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Deep learning multiphysics network for imaging CO2 saturation and estimating uncertainty in geological carbon storage by Um, Evan Schankee, Alumbaugh, David, Commer, Michael, Feng, Shihang, Gasperikova, Erika, Li, Yaoguo, Lin, Youzuo, Samarasinghe, Savini

“…Multiphysics inversion exploits different types of geophysical data that often complement each other and aims to improve overall imaging resolution and reduce…”
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MPiTOUGH2: A parallel parameter estimation framework for hydrological and hydrogeophysical applications by Commer, Michael, Kowalsky, Michael B., Doetsch, Joseph, Newman, Gregory A., Finsterle, Stefan

“…We present a parallel joint hydrogeophysical parameter estimation framework specifically relevant for a class of inverse modeling applications where a large…”
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