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在岩性油气藏勘探中,为了能有效地对岩性油气藏进行识别,考虑到高分辨率和高信噪比的处理会造成保真度变差,因此,采用相对保真处理方法.但是,忽略地震资料采集方式对地震处理的影响.为此,基于准噶尔盆地石东地区一条长8km的高分辨率数据采集试验测线,通过分析剖面的反射特征和频谱特征,分别对地震采集震源和观测方式对高分辨率高信噪比地震资料处理的剖面和对相对保真地震资料处理剖面进行了分析和讨论.炸药震源的处理剖面,无论单深井还是组合井剖面的目的层反射波组特征信息都比可控震源的处理剖面丰富;无论单深井还是组合并,接收道距不同,目的层反射波组纵、横向分辨率也不同.小道距(5m道距)接收,目的层反射波组纵、横向分辨率最高.
In lithologic reservoirs exploration, in order to be able to identify lithologic reservoirs effectively, the relative fidelity treatment is adopted in view of the high fidelity and high signal-to-noise ratio processing, , Ignoring the impact of seismic data acquisition methods on seismic processing.Therefore, based on a 8 km long high-resolution data acquisition test line in Shidong area of Junggar Basin, by analyzing the reflection features and spectral features of the sections, Observation method to analyze and discuss the section of high resolution and high S / N seismic data processing and the relative fidelity seismic data processing section.The processing section of explosive source, regardless of the characteristics of the reflected wave group of the target layer in single-deep well or composite well section The information is more abundant than that of the vibrator.Whether the single deep well is combined and the receiver spacing is different, the vertical and horizontal resolutions of the reflected wave group in the target layer are also different. Vertical, horizontal resolution highest.