A Practical Understanding of Pre- and Poststack Migrations: Poststack |
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A Practical Understanding of Pre- and Poststack Migrations: Poststack John C. Bancroft Limited preview - 2007 |
Common terms and phrases
2-D Fourier transform 3-D migration aliasing noise amplitude approximation Bancroft Claerbout complex computed constant velocity Conv CSEG datum defined depth conversion depth migration derivative diffraction shape dip limit dip moveout dipping event downward continuation dx² Eikonal equation energy Equivalent offset filter finite difference FK transform Fourier transform Fresnel zone Geophys Geophysics Geophysics Exp Geophysics Geophysics Geophysics horizontal hyperbola illustrated in Figure image ray input section input trace interpolation interval velocities inversion Kirchhoff migration lateral velocity linear maximum frequency method migrated section migration algorithms migration aperture Nyquist Nyquist frequency output phase shift prestack depth prestack migration processing Prosp ray tracing raypath reflection reflector RMS velocities samples scatter point SEG Nat seismic data seismic section semicircles Snell's law solution source and receiver stacking velocities surface traveltime vertical wave equation wavefront zero zero-offset ӘР