Abstract：In view of the fact that widely using multidis-ciplinary data (geologic, logging and seismic) to build up geologic models of reservoir currently in petroleum industry, it is necessary to define the property of developing seismic methods and techniques and its used scope so that can avoid the mistake in geologic decision.For that reason,it is necessary to carry out deep basic study for basic principles and applied conditions of some application techniques in developing seismic methods.The paper approached the following technical basic issues of developing seismic methods: (1)discussed the relationship between heterogeneous degree of medium and detection-used seismic wavelength;(2)discussed geologic-geophysical models taking as objects reservoir studied, which considered that geologic sequential body and seismic response of its cyclical structure would constitute a new cyclical seismic sequence model;(3)discussed recognized ability of sequential body by seismic response,which considered that it should make the band of seismic signal expand to higher frequency skippingly according to frequency interval of sequential rank if want to improve the resolution of seismic data,otherwise, improvement of the resolution is meaningless ;(4) discussed the issue of selecting the frequen cy of seismic signal in reservoir object, considered that the selected receiving method is different when different size of reflection object is detected, lower frequency band should be used for thicker layer while higher band should be used for thinner layer; (5)presented recognition basis for multi-scale objects and considered that geologic body in different size has different frequency response in seismic response and different imaging position in frequency axe and that the geologic body in different size could be recognized and described by using selective processing system;(6) the paper also deeply discussed the studying steps of high-resolution developing seismic techniques and seismic interpretation ideas under sequential framework, approached the issue of multidisciplinary data set for different studying scale and pointed out the limitation of different methods and research direction.
杜世通. 地震技术识别与描述超薄储层的潜力与局限[J]. 石油地球物理勘探, 2005, 40(6): 652-662.
Du Shi-tong. Potential and limitation of identifying and describing ultra-thin reservoir by seismic technology. OGP, 2005, 40(6): 652-662.
