Skip to main content Accessibility help
×
Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-28T03:18:57.593Z Has data issue: false hasContentIssue false

8 - Seismic Migration

Published online by Cambridge University Press:  15 March 2019

Edward S. Krebes
Affiliation:
University of Calgary
Get access

Summary

This chapter shows an example of how seismic wave theory can be used to improve cross-sectional images of subsurface zones with complex geological structure prepared from seismic data. In CMP stack sections, which are basic images of the subsurface constructed from seismograms, the reflectors and layer interfaces are generally not in their correct spatial positions. Seismic migration is a process that attempts to move them to their correct spatial positions. This chapter shows how seismic wave theory can be used to develop the methods of seismic wave equation migration. As an introduction, the chapter begins with basic methods for migrating point and dipping reflectors and describes the relatively simple methods for diffraction-summation and wavefront migration.This is followed by coverage of the basic wave equation migration methods, namely phase-shift migration, frequency-wavenumber migration, finite difference migration, and Kirchoff migration. A brief explanation of the need for depth migration, which is an improvement over the wave equation migration methods, is also provided.

Type
Chapter
Information
Seismic Wave Theory , pp. 270 - 293
Publisher: Cambridge University Press
Print publication year: 2019

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Save book to Kindle

To save this book to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

  • Seismic Migration
  • Edward S. Krebes, University of Calgary
  • Book: Seismic Wave Theory
  • Online publication: 15 March 2019
  • Chapter DOI: https://doi.org/10.1017/9781108601740.009
Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

  • Seismic Migration
  • Edward S. Krebes, University of Calgary
  • Book: Seismic Wave Theory
  • Online publication: 15 March 2019
  • Chapter DOI: https://doi.org/10.1017/9781108601740.009
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Seismic Migration
  • Edward S. Krebes, University of Calgary
  • Book: Seismic Wave Theory
  • Online publication: 15 March 2019
  • Chapter DOI: https://doi.org/10.1017/9781108601740.009
Available formats
×