论文部分内容阅读
针对松辽盆地北部中浅层薄层识别难的问题,我们研究了用宽频带高分辨率地震预测薄层储层分布的方法。通过正演数据分析,发现薄层地震反射具有振幅随频率变化而变化的特征-简称为AVF特征,并提出利用储层反射AVF特征计算薄层储层的厚度,用薄层厚度对应的宽频带高分辨率地震方法预测薄层储层分布。该方法在松辽盆地肇源3D地区的实际应用中,大大提高了地震分辨率,查明了一大批薄层储层。该方法在油气勘探与开发中也有着广泛的应用领域,例如,井位设计,尤其是水平井设计,试油层位选择,开发井油层连通性分析等。
Aiming at the difficulty of identifying thin and medium layers in the north of Songliao Basin, we studied the method of predicting the distribution of thin layers using broadband high-resolution seismic. Through forward data analysis, it is found that the seismic reflection of thin layer has the characteristic that the amplitude varies with the frequency variation (abbreviated as AVF) and proposes to use the reservoir reflection AVF feature to calculate the thickness of the thin reservoir. The thin layer thickness corresponding to the broadband High Resolution Seismic Prediction of Thin Reservoir Distribution. This method greatly enhances the seismic resolution and realizes a large number of thin-bed reservoirs in the practical application of Zhaoyuan 3D area in the Songliao Basin. The method also has a wide range of applications in oil and gas exploration and development, for example, well location design, especially horizontal well design, test formation selection, connectivity analysis of development wells and so on.