缝洞型碳酸盐岩内部局域振幅横向差异性储层预测法

塔里木盆地轮南地区奥陶系碳酸盐岩高分辨率三维保幅地震资料显示，潜山内部存在许多“短轴”杂乱的反射能量团。根据地震反射原理，结合钻井取心、测试和测井资料的分析，认为具有一定反射能量和“短轴”杂乱反射是碳酸盐岩潜山内部储层的地震响应特征。由此，本文提出了一种能够定量刻画潜山内部杂乱反射能量团的方法，主要用于预测缝洞型碳酸盐岩内部储层的平面分布规律，简称为局域振幅横向差异性储层预测法。本文方法具有简便实用、预测精度高等特点，在轮南地区奥陶系缝洞型碳酸盐岩潜山油气藏勘探中应用效果显著。

Prediction of reservoir by laterally regional amplitude difference for fractured carbonate

It is showed from 3-D high-resolution and amplitude-preserved seismic data in Ordovician carbonate of Lunnan area,Tarim basin,that there exist a lot of desultory reflected energy forming "short event" in buried hill.According to seismic reflection theory and combining with the analysis and the study for core and logging data,it is considered that the reflected energy and "short event" in disordered level are a seismic response to carbonate reservoir in buried hill.The paper presented a simple and convenient method that can quantitatively describe the disordered reflected energy,mainly used to predict the plan distribution rule of fractured reservoir in carbonate,which is called for reservoir prediction by laterally regional amplitude difference.The practice of application in Lunnan area showed that the method has simple,convenient and practical characters and the feature of prediction with high-precision,having prominent applied effect in exploration of oil/gas reservoir in Ordovician fractured carbonate buried hill,Lunnan area,and having a referential role in oil/gas exploration of carbonate in other platform and basin.