Thin Interbedded Reservoir Seismic Reflection Feature Recognition

This paper mainly study the identify method of seismic reflection characteristics of thin inter-bed. First of all, mainly discuss the mechanism of seismic distinguish. Base on this mechanism ,we discuss the key factor of influence that the seismic distinguish were influenced . We point out the main influence factor of seismic distinguish in landscape orientation is Fresnel zone. We can solve this problem through the high quality wavelet equation migration . The main influence factor of seismic vertical resolution is very complex, manufacture and scientific research is main care the vertical resolution .Besides of the noise, the vertical resolution is depend on the wavelength, we can enhance it through improve the shot condition and deconverlution. While the thickness of inter-bed is less than λ/4, we lost visual resolution, we can solve this problem through muti- attribute analysis.And in this paper we also discuss the principle of how to pick up attributes and something we must care in pick up and optimize about attributes. Through the analysis attributes inof time and frequency zone, we can find when the thickness is less than λ/4 the relationship between thickness and attribute is liner.The paper is mainly discuss the Gabor transform , Hilbert transform and wavelet transform. Through the analysis of Gabor transform we can find that the amplitude of Gabor transform is sensitive to reservior. The phase information offered by Hilbert transform can offer information of reserve in high precision. Wavelet transform can analysis any detail of seismic data. The information pick up from wavelet transform is obverse high than Hilbert transform and routine analysis.Through the modeling and data process we can find that the principle and method is right.