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Keywords: mt data
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Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584558
..., Colorado School of Mines Summary apply the method to the MT data from East Tennant, Australia and demonstrate the efficacy of the method. Magnetotelluric (MT) data can provide important structural information in many exploration problems. We present an 1D blocky MT inversion using Ekblom norm efficient...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581079
... and show that we can obtain a data set com- stations in the USArray or AusLAMP survey and acquired parable to that from a full regular grid. This new acquisition higher-resolution MT data with the same number of stations, pattern coupled with post-acquisition reconstruction can lead budget, and operational...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214939
... receiver station seg 10 mt data gravity complex terrain annual meeting basement depth mapping Berdichevsky , M. N. , and V. I. Dmitriev , 2008 , Models and methods of Magnetotellurics : Springer . Gerovska , D. , and M. J. Arauzo-Bravo , 2003 , Automatic...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216157
... ABSTRACT Geological interpretation of 3D resistivity models from marine controlled-source electromagnetic (CSEM) and magnetotelluric (MT) data inversion faces difficulties in the emerging new frontiers for hydrocarbon exploration where structural complexity and anisotropic or low-resistivity...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2995041
... inversion of gravity and magnetotelluric (MT) data acquired over Yellowstone National Park. Presentation Date: Wednesday, October 17, 2018 Start Time: 8:30:00 AM Location: 213A (Anaheim Convention Center) Presentation Type: Oral reservoir characterization seg international exposition annual...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2995134
.... Using synthetic studies to analyze the image reliability further, we find that such a resistive body is indeed detectable by the MT data, but would not be resolvable, even if the MT data set was amended in areal coverage and frequency range. This analysis prevents premature, biased geological...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2989812
...Identification of geothermal reservoirs from ensemble-based Bayesian inversion of 3D MT data Svenn Tveit* and Trond Mannseth, Uni Research CIPR SUMMARY We consider the problem of identifying geothermal reservoirs in an exploration setting utilizing information from transient electromagnetic (TEM...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17727472
..., we propose Frequency Domain Independent Component Analysis (FDICA) for MT data analysis, which is used for sound-wave analysis. For testing noise reduction performance by using FDICA, various hypothetical noises were added to observed MT data. As a result, we confirmed that the large noises, hardly...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13866304
... ABSTRACT Rectilinear grids which are commonly used for the inversion of magnetotelluric (MT) data lack the flexibility required for representing arbitrary structures and for local refinement of the mesh. This abstract reports preliminary results of the inversion of MT data using unstructured...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5880335
... Summary The magnetotelluric (MT) method can be effectively applied for depth-to-basement estimation, because there exists a strong contrast in resistivity between a conductive sedimentary basin and a resistive crystalline basement. Conventional inversions of MT data are usually aimed...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5821800
... Summary The distortion of regional electric fields by local structures represents one of the major problems facing three-dimensional magnetotelluric (MT) interpretation. The effect of 3D local inhomogeneities on MT data can be described by a distortion matrix. In this paper, we develop...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0413
... MT monitoring oil and gas reservoir. The inversion results are consistent with the logging curves, and the predicted reservoir area and thickness are consistent with the known wells and the collected data. well logging inversion result time-lapse mt data black line time-lapse...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0496
... inversion/forward modeling code, MARE2DEM, developed largely by K. Key. A portion of the results of this evaluation are presented here with the objective that of examining aspects of the application of the inversion algorithm to real CSEM and MT data, rather than a detailed re-interpretation of the Gemini...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0071
... Summary We develop a Bayesian model to invert 2D magnetotelluric (MT) data using a pixel-based parameterization, and apply it to an active geothermal field. Although this parameterization is more flexible in representing subsurface resistivity structure than sharp boundary models, it may...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0717
... Summary Recent advances in geophysical instrumentation and signal processing followed by the development of robust 3D MT inversion codes gave the MT technique a new revival as a powerful tool applied in mining exploration and particularly for the detection of deep-seated deposits. The MT data...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0251
.... The images show that the MT data by themselves lack resolution to warrant use alone, but help to constrain the inversion process when jointly inverted with CSEM data. Constraints in the form of a discontinuity at the top of the basalt further enhance image resolution. Introduction Seismic imaging of sub...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0428
... Summary Marine controlled-source electromagnetic (MCSEM) surveys have become an important part of offshore hydrocarbon exploration. Magnetotelluric (MT) data are often also recorded by MCSEM receivers at almost no additional cost. In this paper we present a new approach to 3D inversion...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0245
... in these areas, resulting in lower precision of deep-seated structures with pre-stack depth-migration seismic sections. On the contrary, there is an obvious resistivity contrast between arenaceous mudstones and gravels. Therefore, using MT data can be very beneficial in the identification of locally developed...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-0604
... ABSTRACT We present a “structure”-based approach for the joint inversion of marine Controlled-Source Electromagnetic (mCSEM, ) and Magnetotelluric (MT, ) data which uses a priori, information on the geometry to reduce the number of unknown parameters and to improve the resolution...
Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-0542
... the mantle towards the Yellowstone volcano. The plume is identified as a west-dipping conductive structure in the 3D conductivity model of geometry similar to the low velocity structure in the 3D P-wave velocity model. mt data university earthscope mt data reservoir characterization zhdanov upper...
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