Course Project for fall 2003

Valle Central de Chile

Today we will see a typical brute stack flow applied to LSU Line 04 from the Livingston area at the Puchi site:

NAME of sub-flow

Purpose Display SEGY data for quality control Convert SEGY data to OmegaSPS internal format Display OmegaSPS data set Delete and reverse polarity of traces Changes station numbers for detectors (geophones) in the trace headers Transfer shotpoint locations (UTM, Z=15) from an editable text file to the trace headers in the seismic data set Transfer geophone locations (UTM, Z=15) to the trace headers in the seismic data set Create an initial geometry data base Create CDP geometry information in the data base and pass it on to the seismic data headers Create the shot-geophone (source_to_detector_distance) in the headers of the seismic data by mathematical manipulation Check to see if the CMP's look all right Create a velocity file Generate the first pass stack by sorting the data in CMP's then applying a hyperbolic NMO, filter, gain and summation.

As you process your own data set for your course project you can start by using the above flows.  Then you can branch out and try new options in the flow. For example you may want to change the velocity structure, apply an f-k filter, test different bin sizes in your CMP geometry.  (The image with the most usable geological information wins!)