摘要
本文论述“立体地震法”的概念和数据采集、数据处理、综合解释方法技术，并给出首次应用于松辽盆地靶区的实例。实践初步证明立体地震法可将地层结构识别的几何分辨力提高到2～3m；对地下介质空间分布不均匀性的相对判别的分辨力趋于声波测井水平，使目前地震勘探总体分辨力提高5～10倍，提高了地震方法解决油气地质问题的能力。当前要使高分辨力地震能力提高到一个全新的高度，关键是要提高原始采集资料中的有效高频含量，只有首先变革现有的生产观测方法技术才有可能达到这一目的。“立体地震法”将是实现此变革的一种途径。
This paper discusses the concept of Stereoscopic Seismic Method (SSM) along with data acquisition, processing, and integrated interpretation methods and techniques, and an example of the method first applied in the target area of Songliao Basin is given. Initial practices show that by using the stereoscopic seismic method the geometric resolution of formational texture recognition can be improved up to 2~3 m, and the resolution of distinguishing the spatial inhomogeneity of subsurface media can reach the acoustic log level. As a result, the method increases the overall resolution of current seismic prospecting by 5~10 folds. lt is contributive to upgrade the capability of seisrnic rnethods for solving oil and gas geology problems. At present, to raise the capability of high-resolution seismic to an entirely new height, the key is to enhance the effective high-frequency components of the primary data collected. Only by transforming first the productive observation method and technique currently used, can we attain the goal. Now the stereoscopic seismic method is a highly recommendable approach to help realize the aim of this trans formation.
出处
《石油物探》
EI
CSCD
北大核心
1998年第4期12-31,共20页
Geophysical Prospecting For Petroleum
基金
国家"八五"重点科技攻关专题!85-102-09-05
关键词
立体地震
地震勘探
油气勘探
地震数据
stereoscopic seismic, resolution, borehole explosive source, model, imaging,integrated interpretation
