Changes

[[file:amplitude-versus-offset-avo-analysis_fig4.png|thumb|{{figure number|4}}Calibrated NMO-corrected CDP gathers after relative amplitude processing and application of noise reduction methods designed for single traces.]]

[[file:amplitude-versus-offset-avo-analysis_fig4.png|thumb|{{figure number|4}}Calibrated NMO-corrected CDP gathers after relative amplitude processing and application of noise reduction methods designed for single traces.]]

Seismic data processing for AVO requires that certain steps be applied to common depth point (CDP) gathers (the individual traces prior to stacking). Areas of importance include (1) generalized amplitude corrections, (2) signal to noise ratio improvement, (3) robust deconvolution, and (4) prestack migration prior to AVO analysis in structurally complex areas.

Seismic data processing for AVO requires that certain steps be applied to common depth point (CDP) gathers (the individual traces prior to stacking). Areas of importance include (1) generalized [[amplitude correction]]s, (2) [[signal to noise ratio]] improvement, (3) robust deconvolution, and (4) prestack migration prior to AVO analysis in structurally complex areas.

Generalized amplitude corrections are probably the most important aspect in extracting and restoring proper amplitude relationships in the data. Amplitude corrections must compensate for (1) irregular source strength, (2) source array effects, (3) inelastic attenuation, (4) transmission loss effects, (5) spherical divergence, (6) receiver array effects, (7) receiver sensitivity, and (8) receiver vertical directivity.

Generalized amplitude corrections are probably the most important aspect in extracting and restoring proper amplitude relationships in the data. Amplitude corrections must compensate for (1) irregular source strength, (2) source array effects, (3) inelastic attenuation, (4) transmission loss effects, (5) spherical divergence, (6) receiver array effects, (7) receiver sensitivity, and (8) receiver vertical directivity.