Method and device for editing first arrivals in batches

Abstract

The invention provides a method and device for editing first arrivals in batches. The method comprises the steps of picking first arrivals corresponding to all seismic traces in preset earthquake data, wherein the preset earthquake data comprises single shot data with a preset set number, and each set of single shot data comprises seismic trace data of at least one seismic trace; distributing the picked first arrivals into a cross-plot of time and an offset, wherein the cross-plot comprises first arrival points corresponding to all the first arrivals; determining irregular first arrival points corresponding to abnormal first arrivals, and obtaining configuration information corresponding to all abnormal points, wherein the configuration information comprises shot numbers and seismic trace serial numbers corresponding to all the abnormal first arrival points; according to the configuration information corresponding to all the abnormal first arrival points, correcting all the abnormal first arrival points. According to the method and device for editing the first arrivals in batches, the correcting efficiency of the abnormal first arrivals can be improved.

Description

Technical field [0001] This application relates to the technical field of seismic data processing, and in particular to a method and device for batch editing of first arrivals. Background technique [0002] The static correction processing technology in seismic exploration can be used to solve the problem that the change of seismic wave travel time in the near-surface medium affects the reflection wave superimposition imaging. In static correction processing technology, first arrival is an important attribute of seismic data. In the process of seismic data processing, the first arrival attributes can usually be used to solve the problem of static correction of seismic data. When an earthquake occurs, due to the different propagation speeds of various seismic waves, the time of propagation to the observation point is also sequential. The first wave received by the seismic observation point can be called the first arrival wave. The refraction static correction method or tomograp...

AI Technical Summary

Problems solved by technology

[0003] Since various interferences and complex surface conditions may cause inaccurate first arrival picking results of seismic waves, the current processing workflow usually corrects the abnormal results of first arrival picking through manual processing after first arrival picking, so that The method is time-consuming and laborious, which prolongs the processing cycle of seismic data and reduces the efficiency of processing work.

Images