Process Control in Parameters Inversion of Pre-sack Seismic Data Using the Slowness Negative Gradient Panel
In this paper,the negative gradient calculated by conventional local optimization methods is decomposed according to slowness to form the slowness negative gradient panel.In the slowness negative gradient panel,the gradients provided by different slowness (corresponding to different plane waves with different incident angles) are arranged together along the horizon direction,the vertical direction represents the depth.Thus the slowness negative gradient panel has a similar meaning as the common imaging point gather in migration,and the consistency of kinematics and dynamic characteristics of seismic waves in the panel is utilized to specifically guide the selection of slowness,layer segment and other information in the process control of inversion to ensure the stability of inversion.The test demonstrates that using gradient panel to control the process of inversion is effective.
process control pre-stack inversion of seismic data inversion of elastic parameters strategyof inversion
Gu Cheng Baojin Zhang
Department of Earth Sciences, Sun Yat-Sen University, Guangzhou, PRC;Guangdong Key Laboratory of Geo Guangzhou Marine Geological Survey, Guangzhou, PRC
国际会议
长沙
英文
199-204
2012-06-15（万方平台首次上网日期，不代表论文的发表时间）