Hot dry rock is generally buried deep within the subsurface and exhibits high temperatures, hardness and density, with low porosity and a lack of permeable fluids. It is thus difficult to investigate and poses a high exploration risk. This paper emphasizes the role of seismic exploration in evaluating hot dry rock exploration by exploiting technical advantages, including strong penetration, high resolution and precise depth determination. Denoising and weak deep effective signal processing, unique processing methods (e.g. high-precision static correction, pre-stack noise attenuation, wide-angle reflection in weak signal areas and fine velocity analysis) are used for high-quality imaging of formations inside the hot dry rock geothermal reservoirs to address the difficulties of data static correction. The joint inversion/data fusion of seismic and other geophysical methods allow the realization of non-linear quantitative prediction and evaluation of hot dry rock reservoirs. The geothermal reservoir parameters, including lithology, physical properties and temperature, are predicted by integrating various geophysical attributes. Further, the development potential of the geothermal reservoir is accurately evaluated, and promising results achieved.

中文翻译：

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干热岩勘探开发地震预测评价技术

干热岩石通常深埋在地下深处，具有高温、硬度和密度高、孔隙率低和缺乏可渗透流体的特点。因此，调查难度大，勘探风险高。本文强调了地震勘探在评价干热岩勘探中的作用，利用了强穿透力、高分辨率和精确深度确定等技术优势。去噪和弱深有效信号处理，采用独特的处理方法（如高精度静校正、叠前噪声衰减、弱信号区广角反射和精细速度分析），对热区内部地层进行高质量成像干岩地热储层，解决数据静校正困难。地震与其他地球物理方法的联合反演/数据融合，可以实现对干热岩储层的非线性定量预测和评价。通过综合各种地球物理属性来预测地热储层参数，包括岩性、物性和温度。此外，准确评估了地热储层的开发潜力，取得了可喜的成果。