【摘要】 预测相对高孔砂岩是甜点预测的重要任务之一,利用叠后地震属性预测孔隙度的方法在远井的位置结果不理想,通过叠前反演得到的泊松阻尼因子属性(PDF)在检测高孔砂岩方面有其独特优势。测井岩石物理分析发现:PDF不仅能识别砂岩,还与孔隙度相关性较高,非常适合应用预测高孔砂岩。在实际工区应用中发现PDF很好得刻划出了高孔砂岩(河道主方向)的分布特征,是一种定性孔隙度预测的新手段。更多还原

【Abstract】 Prediction of relatively high porosity sandstone is one of the important tasks of sweet spots prediction.It’s difficult to get an ideal result of porosity prediction in far well by using seismic attribute after overlying.The Poisson damping factor(PDF)obtained by inversion before overlying has special superiority in detection of relatively high porosity sandstone.Using logging petrophysical analysis found that PDFcan not only identify sandstone,but also has high correlation with porosity.It is suitable to be used to detect the high porosity sandstone.The result of actual application showed that the PDF well characterizes the distribution of high porosity sandstone(the main direction of river),so PDFis a new method for inspection of high porosity sandstone with the desirable result achieved.更多还原