Abstract：In this paper,we analyze problems in conventional VSP calibration,and propose a new seismic calibration based on VSP data. The steps are as follows:①VSP and synchronous gamma-ray logging data acquisition; ②VSP data processing and quality control to insure the consistence between VSP corridor stack section and synthetic seismogram in the depth domain; ③Using VSP time-depth relationship corrects acoustic curves and improves synthetic seismogram; ④Absolute amplitude display calibration and cross-correlation parameter calculation to determine the calibration position and polarity; ⑤VSP corridor stack and corrected seismogram embedded at well locations in seismic sections. This approach is used in the exploration and development of South Sulige gas fields,and achieved satisfactory results.
Wang Yi. Summarize and practice of seismic horizon calibration method. Journal of Chongqing University of Science and Technology (Nature Sciences Edition), 2011, 13(1):40-42.
