利用地震瞬时谱属性进行薄互层分析

详细信息

Using seismic instantaneous attributes to analyze thin interbeds

1. Institute of Wave and Information, School of Electronic and Information Engineering, Xian Jongtong University, Xi'an 710049, China;
2. Institute of Exploration and Exploitation for Oil, Daqing Oil Field Limited Company, Daqing 163712, China

摘要: 利用地震瞬时谱的属性（包括瞬时振幅、瞬时频率、瞬时带宽、瞬时主频及瞬时品质因数等）进行地震薄互层分析。设计了几组典型模型,用褶积模型制作合成地震记录,然后分别计算它们的瞬时谱属性。结果表明:不同的薄互层模型,尽管在时间域的合成记录几乎相同,但它们的某些瞬时属性却有明显的差别;多种瞬时属性可用于全面刻画薄层及薄互层。文中给出了实际资料算例,证明了其有效性。
- 瞬时谱属性 /
- 薄互层分析 /
- 地震资料处理
Abstract: Instantaneous attributes including amplitude,instantaneous frequency, bandwidth, dominant frequency and decay rate are used to analyze thin interbeds.Several typical models were designed to get their seismic synthetic data and their instantaneous attributes were extracted individually. The results show that the synthetic seismic data were almost same to each other in the time domain. However, some of their instantaneous attributes may have obviously difference. As a result, multi-instantaneous attributes can be used to characterize the thin-layers and thin interbeds. Finally, a case study is presented in this paper,confirming their efficiency.
- instantaneous attributes /
- thin interbeds analysis /
- seismic data processing