METHOD OF FIRST ARRIVAL PICKING OF MULTI-CHANNEL SEISMIC SURVEY DATA CONSIDERING SOUND SOURCE-RECEIVER ARRAY

摘要

A method of first arrival picking of multi-channel seismic survey data considering sound source-receiver array that can increase the reliability of a first arrival selected from marine seismic survey measurement data that includes noise, that includes selecting a temporary first arrival value of each trace in a set configured to have a plurality of traces using any one of a conventional first arrival picking technology, deriving a transform set including the temporary first arrival values by performing a normal move-out using a sound source-receiver distance and a velocity of a medium so as to correct a time difference generated during measurement, subtracting a temporary first arrival value of a large deviation from the transform set, deriving a first arrival expected location by generating an average value of remaining temporary first arrival values in the transform set, deriving a true first arrival selection range by adding or subtracting an arbitrary error value to or from the average value of the temporary first arrival values, and selecting a true first arrival value within the true first arrival selection range using any one of the conventional first arrival picking technologies.