Seismic Holography in a Norwegian Fiord

  • S. Ljunggren
  • O. Løvhaugen
  • E. Mehlum
Part of the Acoustical Imaging book series (ACIM, volume 8)

Abstract

The classical methods used in seismic surveys are based on measuring the time taken for a pulse of sound to travel from a sound source to a receiver via the various geological reflectors. Another use of sound in seismic surveys would be to sample the returning wavefront with phase and amplitude over an area. The measured wavefront can be used to reconstruct the geological reflectors. In this paper most emphasis is put on an experiment in seismic holography carried out in a Norwegian fiord to determine the feasibility of the method. Both the registration and the processing techniques employed are discussed. Examples of reconstructions of the geological structure together with a comparison with results obtained by classical methods are presented. The possibility of using optical methods to reconstruct acoustical fields is also discussed.

Keywords

Clay Petroleum Convolution Acoustics Hydrophone 

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Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • S. Ljunggren
    • 1
  • O. Løvhaugen
    • 1
  • E. Mehlum
    • 1
  1. 1.Central Institute for Industrial ResearchOslo 3Norway

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