GeoCenter LP SeisUP ® Marine Processing

SeisUP ® University of Texas / Dallas Offshore Oregon Processed By: GeoCenter for Training Session utilizing SeisUP ®

Table of Contents SeisUP ® Slides Subject 4 Processing Flow 5-6 7 Raw Record Display 8-9 Near Trace Displays 10-11 Brute Velocity Analysis 12 QC Stack 13 Gain Analysis 14-15 A/C & Decon QC 16-17 Decon Velocity Analysis 18 Decon Stack 19 Radon QC 20-21 Radon Velocity Analysis Slides Subject 22-23 Radon Stacks 24-25 Radon DMO Velocity Analysis 26 DMO Stack 27 KTMIG Stack 28 DMO Angle Gather QC 29-31 AVO Cross Plots 32-33 Angle Stacks 34-36 Aperture Model QC 37 SMIG Stack 38 Closing SeisUP ®

Processing Flow Additional QC Radon Test Apperture Modeling Test Reformat to GCI format Geometry Near trace extraction Spherical divergence correction Surface consistent gain correction Spike edit Deconvolution Velocity analysis Stack Radon Dip moveout correction KTMIG AVO Processing Angle Stack QC Angle Stacks (15 & 30 degrees) AVO Crossplots AVO (intercept & gradient) Stack Additional QC Radon Test Apperture Modeling Test SeisUP ®

University of Texas / Dallas Page 5 / 38 University of Texas / Dallas Offshore Oregon Processing Flow (1) Processing Flow (1) SeisUP ®

University of Texas / Dallas Processing Flow (2) University of Texas / Dallas Offshore Oregon Processing Flow (2) SeisUP ® Page 6 / 38

Raw Record Display Raw Record Display SeisUP ® Page 7 / 38

Near Trace (all shots) SeisUP ® Near offset display All Shots Page 8 / 38

Near Trace (every 3rd Shot) Near offset display Edit: every 3 rd shot SeisUP ® Page 9 / 38

Brute Velocity Analysis SeisUP ® Page 10 / 38

Brute Velocity Analysis SeisUP ® Page 11 / 38

Alternate Trace Display (zoomed zone of interest) SPER + NMO + STACK + AGC Alternate Trace Display (zoomed zone of interest) Brute Stack SeisUP ® Page 12 / 38

Surface Consistent Amplitude Analysis SGN1 +SGN2 Gain Analysis Before After SeisUP ® Page 13 / 38

Auto Correlation Analysis SeisUP ® Page 14 / 38

Spiking Deconvolution Auto Correlation Analysis Decon A/C Analysis Spiking Deconvolution Operator= 160 msec Auto Correlation Analysis SeisUP ® Page 15 / 38

Decon Velocity Analysis SeisUP ® Page 16 / 38

Decon Velocity Analysis SeisUP ® Page 17 / 38

Decon Stack SeisUP ® SPER +SGN3 + DECON + NMO + STACK + AGC Alternate Trace Display (zoomed zone of interest) SeisUP ® Page 18 / 38

Radon QC Before After Removed Radon QC SeisUP ® Page 19 / 38

Radon Velocity Analysis Decon + Radon Velocity Analysis Radon Velocity Analysis SeisUP ® Page 20 / 38

Radon Velocity Analysis Decon + Radon Velocity Analysis Radon Velocity Analysis SeisUP ® Page 21 / 38

Radon Stack SeisUP ® SPER +SGN3 + DECON + RADON (TP)+NMO + STACK + AGC Alternate Trace Display (zoomed zone of interest) SeisUP ® Page 22 / 38

Radon Stack SeisUP ® SPER +SGN3 + DECON + RADON + NMO + STACK + AGC Alternate Trace Display (zoomed zone of interest) SeisUP ® Page 23 / 38

DMO Velocity Analysis SeisUP ® Decon + Radon + DMO Velocity Analysis Page 24 / 38

DMO Velocity Analysis SeisUP ® Decon + Radon + DMO Velocity Analysis Page 25 / 38

Decon + Radon + DMO + Filter+ AGC DMO Stack SeisUP ® Page 26 / 38

Decon + Radon + DMO +KTMIG + Filter+ AGC KTMIG Stack SeisUP ® Page 27 / 38

DMO Angle Gather QC (0-50/10 = 5 degrees) SeisUP ® Page 28 / 38

AVO Cross – P-wave Intercept and Gradient AVO Cross Stack SeisUP ® Page 29 / 38

AVO Cross Plot SeisUP ® Page 30 / 38

AVO Cross Plot SeisUP ® Page 31 / 38

Angle Stack (0-15 degree) SeisUP ® Angle Stack 0-15 degrees Page 32 / 38

Angle Stack (0-30 degree) SeisUP ® Angle Stack 15 - 30 degrees Page 33 / 38

Aperture Model QC SeisUP ® Aperture Model QC (one sided) Design desired aperture = Number of traces x TR. Interval x 2 (for full aperture) SeisUP ® Page 34 / 38

Designed Aperture Model QC Aperture Model QC (one sided) Designed Aperture Model QC Aperture designed by controlling distance and time varying dip. SeisUP ® Page 35 /38

Designed Aperture Model QC Aperture Model QC (one sided) Designed Aperture Model QC Aperture designed by time varying dip only. SeisUP ® Page 36 / 38

Decon + Radon + DMO + SMIG + Filter+ AGC SeisUP ® Page 37 / 38

GeoCenter has made every effort to ensure the accuracy of the information herein. However, appropriate information sources should be consulted, especially for new or unfamiliar processing procedures. It is the responsibility of the processing geophysicist to evaluate and conclude his/her own opinion to the context of the material presented. It is forbidden to reproduce or to transmit in any form or by any means, electronic or mechanical , including photocopying any portion of this presentation without written permission from the University of Texas/Dallas and GeoCenter. GeoCenter LP 4805 WestWay Park Blvd. Houston, TX 77041 281.443.8150 SeisUP ®