利用波形分析技术预测塔河油田碳酸盐岩储层

Prediction of Carbonate Reservoirs Using Waveform Analysis Technology in Tahe Oilfield

针对塔河油田盐体覆盖区下奥陶统碳酸盐岩埋深大,储层非均质性强的特征,利用地震波形变化特征半定量识别和预测优质储层分布。波形分析法是根据碳酸盐岩储层裂缝和孔洞结构特有的非均质性,建立地质模型,结合地震波形分析和反射机理研究,确定储层与地震响应之间的对应关系,根据建立的碳酸盐储集层地震识别模式,进而对未知区域作储层预测。

According to the characteristics of great depth and strong reservoir heterogeneity in lower ordovician carbonate in the region covered with salt body of Tahe oilfield, challenging the interpretation of carbonate reservoirs.Applied the waveform classification semi-quantitative technology to identify and predict evaluated reservoir distribution. Based on an analysis of the heterogeneity caused by fractures ,karst and caves in carbonate reservoir, this paper proposes to establish the geological model, with seismic waveform analysis and reflection mechanism. According to the seismic recognition model, unknown reservoirs are predicted.