step sttenuator

Aiming at the character- istics,we proposed the reservoir prediction methods for this area, including spectrum decomposition,well constrained seismic imped- ance inversion,and seismic attenuation gradient attribute technolo- gy.

针对这些特点,提出了三叠系中油组储层预测方法——频谱成像技术、测井约束地震反演技术和地震衰减梯度属性技术。

On the basis of the fundamental theory of seismic attenuation and wavelet transform, a method is studied on the seismic attenuation technology to predict reservoir , we discussed the relationship of seismic quality factor, attenuation gradient and reservoir characterization.

阐述了地层介质的吸收原理,讨论了基于小波变换的匹配追踪频谱分解算法,并在此基础上对介质品质因子和地震波振幅梯度与储层特性的关系进行了分析;利用该方法计算了鄂尔多斯盆地北部D16井区下石盒子组盒3段地震波振幅的衰减梯度,并结合其它储层信息进行了含气性综合预测。