Toward a closed loop from seismic imaging to earth-model building
Velocity-model building is the first task of seismic inversion and the foundation of the subsequent data-processing workflow. When the earth velocity becomes multivalued with respect to the propagating direction of the waves, velocity-model building becomes severely underdetermined and nonunique. Th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | en_US |
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Society of Exploration Geophysicists
2016
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| Online Access: | http://hdl.handle.net/1721.1/103583 https://orcid.org/0000-0003-4225-2735 |
| _version_ | 1826212669156229120 |
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| author | Li, Yunyue Biondi, Biondo Nichols, Dave Clapp, Robert |
| author2 | Massachusetts Institute of Technology. Department of Mathematics |
| author_facet | Massachusetts Institute of Technology. Department of Mathematics Li, Yunyue Biondi, Biondo Nichols, Dave Clapp, Robert |
| author_sort | Li, Yunyue |
| collection | MIT |
| description | Velocity-model building is the first task of seismic inversion and the foundation of the subsequent data-processing workflow. When the earth velocity becomes multivalued with respect to the propagating direction of the waves, velocity-model building becomes severely underdetermined and nonunique. The traditional workflow separates velocity-model building from lithologic inversion, which hampers both processing steps. An integrated model-building scheme is demonstrated to simultaneously consider prestack seismic data and its structural and lithologic inversion results from a previous iteration. The prestack seismic inversion is performed using wave-equation migration velocity analysis (WEMVA) for vertical transverse isotropic (VTI) models. To constrain the seismic inversion, the geologic information is integrated as spatial-model correlations, and the rock-physics information as lithologic-model correlations. This feedback step completes the loop from seismic imaging to lithologic-model building, where previous rock-physics estimations and geologic interpretations can be validated further and updated in order to constrain the next WEMVA iteration. Improvements from the integrated inversion scheme are shown on a Gulf of Mexico field data set. |
| first_indexed | 2024-09-23T15:32:18Z |
| format | Article |
| id | mit-1721.1/103583 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:32:18Z |
| publishDate | 2016 |
| publisher | Society of Exploration Geophysicists |
| record_format | dspace |
| spelling | mit-1721.1/1035832022-09-29T14:53:59Z Toward a closed loop from seismic imaging to earth-model building Li, Yunyue Biondi, Biondo Nichols, Dave Clapp, Robert Massachusetts Institute of Technology. Department of Mathematics Li, Yunyue Velocity-model building is the first task of seismic inversion and the foundation of the subsequent data-processing workflow. When the earth velocity becomes multivalued with respect to the propagating direction of the waves, velocity-model building becomes severely underdetermined and nonunique. The traditional workflow separates velocity-model building from lithologic inversion, which hampers both processing steps. An integrated model-building scheme is demonstrated to simultaneously consider prestack seismic data and its structural and lithologic inversion results from a previous iteration. The prestack seismic inversion is performed using wave-equation migration velocity analysis (WEMVA) for vertical transverse isotropic (VTI) models. To constrain the seismic inversion, the geologic information is integrated as spatial-model correlations, and the rock-physics information as lithologic-model correlations. This feedback step completes the loop from seismic imaging to lithologic-model building, where previous rock-physics estimations and geologic interpretations can be validated further and updated in order to constrain the next WEMVA iteration. Improvements from the integrated inversion scheme are shown on a Gulf of Mexico field data set. Stanford University. Center for Computational Earth & Environmental Science Stanford Exploration Project 2016-07-13T14:42:29Z 2016-07-13T14:42:29Z 2016-02 Article http://purl.org/eprint/type/JournalArticle 1070-485X 1938-3789 http://hdl.handle.net/1721.1/103583 Li, Yunyue Elita, Biondo Biondi, Dave Nichols, and Robert Clapp. “Toward a Closed Loop from Seismic Imaging to Earth-Model Building.” The Leading Edge 35, no. 2 (February 2016): 135–139. https://orcid.org/0000-0003-4225-2735 en_US http://library.seg.org/doi/pdf/10.1190/tle35020135.1 The Leading Edge Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Society of Exploration Geophysicists Society of Exploration Geophysicists |
| spellingShingle | Li, Yunyue Biondi, Biondo Nichols, Dave Clapp, Robert Toward a closed loop from seismic imaging to earth-model building |
| title | Toward a closed loop from seismic imaging to earth-model building |
| title_full | Toward a closed loop from seismic imaging to earth-model building |
| title_fullStr | Toward a closed loop from seismic imaging to earth-model building |
| title_full_unstemmed | Toward a closed loop from seismic imaging to earth-model building |
| title_short | Toward a closed loop from seismic imaging to earth-model building |
| title_sort | toward a closed loop from seismic imaging to earth model building |
| url | http://hdl.handle.net/1721.1/103583 https://orcid.org/0000-0003-4225-2735 |
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