虚拟钻孔在深层三维地质建模中的应用

Application of Virtual Boreholes in 3D Deep Geological Modeling

在三维地质建模过程中,如何更好地利用多源数据帮助,建立拟合度高、符合地层分布规律的三维地质模型是目前业内的一个热点问题。在深层三维地质建模原始资料较为稀缺的情况下,通过提取物探地质剖面数据信息并加以利用,可以很好地丰富建模初始资料的来源。基于SKUA等GIS软件平台,本文作者提出了剖面数据→生成虚拟钻孔→提取marker数据→marker数据融合校正的方法,从而实现对建模过程的有效干预和控制,使生成的模型不断趋于精确。同时,在工程实例中检验了该方法的准确性和模拟效果。

In the 3D geological modeling process, how to better use multi-source data to establish a 3D geological model with high ftting degree and complex stratum distribution is a hot issue in the current industry. In the case of the lack of the raw data for deep 3D geological modeling, it can be a good source for modeling the initial data by extracting geophysical profle data information. Based on SKUA GIS software platform, the authors introduce a method of using profle data→generating virtual boreholes→extracting the Marker data→correction by the Marker data, which can achieve effective intervention and control of the modeling process, so that the resulting model tends to be more accurate. Simultaneously, the accuracy and simulation results of the method are verifed in the engineering examples.