REPEATABILITY INDICATOR BASED ON SHOT ILLUMINATION FOR SEISMIC ACQUISITION

摘要

Methods and systems for similarity indicator calculation associated with seismic data acquisition are described. A similarity indicator value can, for example, be based on a normalized partitioned intensity uniformity (PIU) metric. In another aspect, shot imprints are compared by mapping a base (reference) shot imprint onto a current sample of a shot imprint before calculating the similarity indicator value. The similarity indicator value is associated with the shot imprint location used in the calculation and allows re-shooting of only the areas where an insufficient quality of shot data is detected based on a preconfigured threshold value for the similarity indicator.

主权项

1. A method, performed in at least one processor, for generating a similarity indicator between a plurality of seismic datasets, said method comprising:
obtaining a first seismic dataset collected at a first time and second seismic dataset collected at a second time; calculating a first image registration metric based on at least one of said first seismic and said second seismic dataset; calculating a second image registration metric based on at least one of said first seismic data set and said second seismic dataset; and generating a similarity indicator between said first seismic dataset and said second seismic dataset using said first and second image registration metrics.