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王棣 ,苗永康 ,于克训 ,单联瑜 .剔除拟合叠前去噪方法改进及应用 .石油地球物理勘探 ,2 0 0 2 ,37(3) :2 76～ 2 79 李庆忠先生于 1995年提出了一种“剔除拟合法”,能够克服多次波并保留 AVO现象 ,可以获得拟合零炮检距 T0 道 P波剖面和 AVO参数。本文将剔除拟合法作为一种叠前去噪手段来使用 ,在动校正后的 CDP道集中作剔除拟合处理后 ,得到常规水平叠加剖面 ,同时根据剖面的具体情况 ,不同的 CDP位置和 T0 时间窗口采用不同的剔除百分比参数。理论模型试验和实际数据应用都取得了理想的效果。
WANG Di, MIAO Yong-kang, YU Ke-xun, SHAN Lian-yu. Improvements and Applications of Eliminating Fitting Prestack Denoising Methods. Petroleum Geophysical Prospecting, 2 0 0 2, 37 (3): 2 76 ~ 2 79 Mr. LI Qingzhong In this paper, we propose a “knockout fitting method” that can overcome the multiples and preserve the AVO phenomenon, and obtain the fitted zero-offset T0 P-wave profile and AVO parameters. In this paper, we use the method of eliminating fitting as a pre-stack denoising method. After eliminating and fitting the corrected CDP gathers, we get the normal horizontal stacking profile. According to the specific conditions of the profile, different CDP positions and T0 The time window uses different culling percentage parameters. The theoretical model test and the actual data application have achieved the desired results.