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在对塔里木盆地北部某工区三维地震资料进行解释时 ,发现了一条特强振幅异常带。文章从异常反射特征和成因两方面进行了分析 ,并初步推测其可能由“河道砂体”引起。同时 ,文章还阐述了将该异常解释为“河道砂体”存在的诸多疑点。在对强振幅异常带反射特征进行分析时 ,应用了先进的三维可视化解释技术 ,从根本上避免了平面切片分析等产生虚假异常的可能性 ,提高了解释的可信度。
When explaining the 3D seismic data in a work area in the northern part of the Tarim Basin, a special strong anomaly band was found. The article analyzes the characteristics and causes of anomalous reflection, and preliminarily estimates that it may be caused by “channel sand body”. At the same time, the article also expounds the suspicion that this anomaly is interpreted as the existence of “river sand body”. In the analysis of the characteristics of the reflection of strong amplitude anomalies, the advanced three-dimensional visual interpretation technology is applied to fundamentally avoid the possibility of generating false anomalies such as plane slice analysis and improve the credibility of interpretation.