Vsp-based depth domain seismic profile horizon calibration method and apparatus

A VSP-based depth domain seismic profile horizon calibration apparatus, comprising:

• a borehole seismic wavefield obtaining unit, configured to obtain VSP wavefield data of a depth domain from a borehole acquisition instrument;
• a first arrival time obtaining unit, configured to determine first arrival time information on the basis of the VSP wavefield data;
• a preprocessing unit, configured to process the VSP wavefield data on the basis of a preset filtering method and the first arrival time information to obtain upgoing wave data;
• a profile information generating unit, configured to generate a zero offset profile of the depth domain on the basis of the upgoing wave data;
• and
• a calibrating unit, configured to calibrate, on the basis of the zero offset profile, a depth-domain profile to be calibrated, so as to generate a corresponding calibration result, wherein the calibration result comprises depth accuracy evaluation information of the depth-domain profile and corresponding correction suggestion information.

A non-transitory computer readable storage medium, storing a computer program, wherein the program, when executed by a processor, implements the following steps:

• obtaining vertical seismic profile (VSP) wavefield data of a depth domain from a borehole acquisition instrument;
• determining first arrival time information on the basis of the VSP wavefield data;
• processing the VSP wavefield data on the basis of a preset filtering method and the first arrival time information to obtain upgoing wave data;
• generating a zero offset profile of the depth domain on the basis of the upgoing wave data;
• and
• calibrating, on the basis of the zero offset profile, a depth-domain profile to be calibrated, so as to generate a corresponding calibration result, wherein the calibration result comprises depth accuracy evaluation information of the profile of the depth domain and corresponding correction suggestion information.