【摘要】 港东二区五断块为曲流河沉积,砂体厚度薄,常见砂泥交互沉积,常规地震资料分辨能力有限,无法满足构造和储层研究的需要。反褶积处理方法由于受地震子波求取的不确定性影响,在实际应用中效果较差。高频拓展处理技术采用压缩子波的途径,在提高分辨率的同时保持了原始地震数据的时频特性和相对振幅关系,层间反射细节得到丰富。经已知井验证,吻合程度较高,为砂体预测提供了可靠的基础数据。更多还原

【Abstract】 The block 5 of the second area of Gangdong is meandering river deposit, the sand body is thin and the alternating deposits of the sand and mud are common, the limited resolution of the conventional seismic data could not meet the requirements of the research of the structure and reservoir. The deconvolution processing has a worse result in the actual application as the uncertainty of the seismic wavelet. The property of the time-frequency and the relation of the relative amplitude of the initial seismic data are preserved and the details of the intrabed reflection are improved by the high frequency extension processing which use the compact wavelet while the resolution is improved. The results has good match with the well information and provided reliable basic data for the sand body prediction.更多还原