高邮凹陷地震资料特征及应用现状浅析

苏北盆地高邮凹陷三维地震资料已基本全区覆盖,但由于受复杂地表和地下地质条件的影响,以及以往采集方法及设备的局限,地震资料整体表现为低信噪比、低分辨率和波场复杂的特点。因此,该地区地震资料的使用有其特殊性。根据地震资料可用程度或油田勘探开发的地质需要,将该地区地震资料的应用划分为三个递进的层次,即构造解释、隐蔽圈闭识别和储层参数预测。具体介绍和分析了高邮凹陷每一个层次地震资料应用的现状和主要问题,并分别提出了相应的建议。

On the seismic data character and application in Gaoyou Sag

Gaoyou sag of Subei basin is nearly all covered with 3 D seismic data. As the impact of complex surface and subsurface geologic conditions,and the limitation of acquisition method and equipment, the 3D seismic data in this area show low signal - to - noise ratio, low resolution and complex wave in whole. So the application of seismic data in Gaoyou sag has its speciality. In this paper, the application of seismic data in the area is divided into three progressive levels： structure interpretation, identification of subtle hydrocarbon trap, and prediction of reservoir parameter. Aiming at the major problems in each level application, the corresponding advices are proposed after detailed analysis.