基于叠前反演的缝洞型碳酸盐岩流体检测及评价技术研究

针对流体检测特别是缝洞型碳酸盐岩储集体含流体性质检测的地球物理难题，基于改进的适用于碳酸盐岩岩石物理分析的Xu&White岩石物理模型，建立起了碳酸盐岩纵、横波速度预测方法技术流程，对弹性参数检测流体的有效性进行了分析。在碳酸盐岩岩石物理分析基础上，开展了叠前反演弹性参数流体检测及叠前流体反演评价技术研究，探索实现了塔河油田主体目标区缝洞型碳酸盐岩储层流体检测及预测结果的概率评价分析。

This paper is aiming at the geophysical difficulty for fluid prediction,especially for fluid prediction in fracture-cavity carbonate reservoir.Firstly,based on the modified Xu&White model for rock physics analysis of carbonate,P-wave and S-wave velocity prediction technical workflow was established,and effective analysis of elastic parameters for fluid identification was conducted.Research on fluid detection by prestack elastic parameters inversion and prestack fluid inversion evaluation technique were carried out based on carbonated rock physics analysis.Meanwhile,these methods were applied to Tahe Oilfield fracture-cavity carbonate reservoirs,and realized fluid detection and evaluation on fluid prediction.