BRIDGE CALIBRATION METHOD FOR VERTICAL SEISMIC PROFILE DATA OF LARGE INCLINED-ANGLE AREA

摘要

A bridge calibration method for vertical seismic profile (VSP) data of a large inclined-angle area, comprising the following steps: 1) collecting VSP data, and performing TAR compensation and channel equalization during VSP processing to obtain accurate unconverted NMO data; dividing the NMO data into two parts, one part comprising a description such as a volume header and a channel header in a SEG-Y data format and the other part comprising pure numerical values; 2) performing an NMO data conversion on the pure numerical values of the NMO data according to a specific method; and 3) outputting a through-well seismic profile, well log data, a well log profile, and the converted matrix data obtained in step 2) as images, combining the images, and performing VSP calibration based on actual drilling stratification data.