砂岩型铀矿波阻抗反演砂体识别技术研究

Study on sandbed recognition technology using impedance inversion in sandstone type uranium deposit

近些年,核工业地质系统在砂岩型铀矿勘查中开展了大量的浅层地震勘探工作,在解决地层、构造等问题上取得了显著成效,在砂体识别方面也开展了一定的研究工作,以探索识别砂体的有效方法。笔者将波阻抗反演技术引入到砂岩型铀矿地震勘查当中,结合地震数据和测井数据,在伊犁盆地开展了基于模型的波阻抗反演实际应用研究,实现了研究区的岩性识别,岩性的识别厚度达到10 m以上。

In recent years, a lot of shallow seismic exploration work were carried out in sandstone type uranium deposit exploration by nuclear industry, and has achieved remarkable success in solving stratigraphy, structure and other issues. Some research on sandbed recognition was also carried out so as to find an effective method. This paper introduced the impedance inversion technology to the exploration of sand type uranium deposit, model-based impedance inversion combined with seismic and logging data in Yili basin with log data and seismic data, and has achieved lithology recognition,and the recognition thickness reaches 10 m.