多次覆盖技术在砂岩型铀矿地震勘探弱信号提取中的应用研究

摘要

In the seismic exploration of sandstone type uranium deposit , the seismic response of uranium sand layers is weak , therefore it need to be further enhanced.Based on the synthetic data , we studied basic principle of weak signals’ retrieval by multi‐fold technology and analyze the features and advantages of high‐fold exploration in the retrieval of weak signals with high‐fidelity.Based on the contrastive study on field data , we also verified the importance and effectiveness of 48‐fold exploration on the retrieval of weak signals in the seismic exploration of sandstone type uranium deposit.%在砂岩型铀矿的地震勘探中，铀成矿目的层的地震响应往往以弱信号的形式存在，需要对其进一步增强。文章在模拟资料的基础上，研究了多次覆盖技术在弱信号提取中的基本原理，分析了高覆盖次数的勘探方式在弱信号高保真恢复中的特点和优势。通过实际资料的对比研究，验证了48次覆盖的勘探方式在砂岩型铀矿地震勘探弱信号提取中的重要性和有效性。