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介绍了频率、振幅和动态吸收系数的计算方法原理。针对川东南赤水地区嘉陵江组一段储层特性,结合钻井和测井资料研究,建立了研究区嘉一段有利油气富集带的地震振幅响应模式,研究认为中高振幅为其地震振幅响应模式。应用该模式对提取的振幅、频率和动态吸收系数的平面图标定分析研究,预测了研究区嘉一段有利储层分布,储层分布有利区主要位于研究区西北部。
The principle of calculation of frequency, amplitude and dynamic absorption coefficient is introduced. According to the reservoir characteristics of the first member of Jialingjiang Formation in Chishui, southeast of Sichuan, combined with the drilling and well logging data, the seismic amplitude response mode of Jiayiyuan favorable oil and gas accumulation zone in the study area is established. It is considered that the medium-high amplitude is its amplitude response mode. Applying this model, we analyzed the planar calibration of the extracted amplitude, frequency and dynamic absorption coefficient to predict the favorable reservoir distribution in Jiayi Section of the study area. The favorable areas for reservoir distribution are mainly located in the northwest of the study area.