宽频宽方位数据同时反演及应用实例

An Application Example of Wide Bandwidth Azimuth Data Inversion

寻找深部致密砂层中的“甜点”、减少优质储层厚度预测误差是推动Y工区含气构造评价勘探和储量升级的关键因素。利用Y工区宽频宽方位的三维地震资料,结合叠前同时反演结果,对深部储层边界及纵、横向不均质性进行精细的识别与刻画,进而寻找深部致密砂层中的“甜点”。结果显示“甜点”储层识别结果与实测井吻合,为Y构造升级储量提供依据。

To find the"sweetness"in the deep tight sand and reduce the prediction error of the thickness of the high-quality reservoir is the key factor to promote the exploration of gas-containing structure evaluation and the upgrading of reserves in the Y work area.Using three-dimensional seismic data of the wide bandwidth and wide azimuth of the Y work area,combining with the results of simultaneous inversion,the boundary of the deep reservoir and the longitudinal and transverse unevenness are finely identified and characterized,and then the"sweetness"in the deep tight sand layer is identified.The results show that the identification results of the"sweetness"are consistent with the actual logging well,which provide a basis for the upgrading of the reserves of the Y structure.