论文部分内容阅读
运用地质、测井约束条件下的地震综合反演技术 ,对高阳三维地震探区下第三系内陆河湖相薄层砂岩储集岩系的几何形态、连续度和物性参数等的空间分布规律进行了横向预测。综合约束反演方法的核心是将钻井地质和测井垂向分辨率高与地震横向分辨率高的特点相结合 ,充分利用测井的低频 -高频成分和丰富的地震中频信息 ,以“岩心刻度测井、测井标定地震”为约束条件 ,通过迭代反演对模型进行不断修改 ,求取适合储层横向预测的优化宽带波阻抗模型。该方法提高了波阻抗剖面的分辨率和砂岩储层物性参数的预测精度。
Using the comprehensive seismic inversion technique under the constraint of geology and logging, the spatial distribution of geometric shapes, continuity and physical properties of thin sandstone reservoir series in the inland rivers in the Gaoyang 3D seismic exploration area The rules were horizontal prediction. The core of the comprehensive constraint inversion method is to combine the high vertical resolution of drilling geology and well logging with the high horizontal resolution of the seismic. By making full use of the low frequency and high frequency components of the well logging and the rich seismic IF information, Scale logging and logging calibration earthquake "as constraints, the model is continuously modified by iterative inversion, and an optimized broadband impedance model suitable for lateral prediction of reservoir is obtained. The method improves the resolution of wave impedance profile and prediction accuracy of sandstone reservoir physical parameters.