Seismic imaging on massively parallel computers

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A key to reducing the risks and costs associated with oil and gas exploration is the fast, accurate imaging of complex geologies, such as salt domes in the Gulf of Mexico and overthrust regions in US onshore regions. Pre-stack depth migration generally yields the most accurate images, and one approach to this is to solve the scalar-wave equation using finite differences. Current industry computational capabilities are insufficient for the application of finite-difference, 3-D, prestack, depth-migration algorithms. High performance computers and state-of-the-art algorithms and software are required to meet this need. As part of an ongoing ACTI project funded by the ... continued below

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5 p.

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Ober, C. C.; Oldfield, R. A.; Womble, D. E. & Mosher, C. C. July 1997.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

A key to reducing the risks and costs associated with oil and gas exploration is the fast, accurate imaging of complex geologies, such as salt domes in the Gulf of Mexico and overthrust regions in US onshore regions. Pre-stack depth migration generally yields the most accurate images, and one approach to this is to solve the scalar-wave equation using finite differences. Current industry computational capabilities are insufficient for the application of finite-difference, 3-D, prestack, depth-migration algorithms. High performance computers and state-of-the-art algorithms and software are required to meet this need. As part of an ongoing ACTI project funded by the US Department of Energy, the authors have developed a finite-difference, 3-D prestack, depth-migration code for massively parallel computer systems. The goal of this work is to demonstrate that massively parallel computers (thousands of processors) can be used efficiently for seismic imaging, and that sufficient computing power exists (or soon will exist) to make finite-difference, prestack, depth migration practical for oil and gas exploration.

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5 p.

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OSTI as DE97007803

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  • 67. Society of Exploration Geophysicists international exposition and meeting, Dallas, TX (United States), 2-7 Oct 1997

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  • Other: DE97007803
  • Report No.: SAND--97-1764C
  • Report No.: CONF-971059--2
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 527468
  • Archival Resource Key: ark:/67531/metadc698826

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • July 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • April 14, 2016, 6:46 p.m.

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Ober, C. C.; Oldfield, R. A.; Womble, D. E. & Mosher, C. C. Seismic imaging on massively parallel computers, article, July 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc698826/: accessed November 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.