邢台地区钻孔三维层序-构造可视化建模

3D Sequence Structure Visualization Modeling and Analysis of Borehole in Xingtai Area

  • 摘要: 通过收集邢台地区已有的钻孔资料,结合浅层地震勘探成果、深部探测成果及部分石油物探资料,采用三维可视化Petrel建模软件,解决了建模中复杂地质现象的难题,精细地表达了研究区域的地质现象,建立了邢台地区第四系三维模型,详细分析了邢台地区第四系分布特征。模拟结果显示:邢台地区的南部中央部位为一大型隆起区,直径达5 km左右;区域内新近系和第四系为连续沉积,无明显分界线;地层整体上呈现东厚西薄的特征,在邢台东断裂的西部新近系较薄或基本缺失;Q1、Q2、Q3地层相对较厚,达到60~150 m厚度,其地层南部的中央位置缺失,直径范围达3~5 km左右;R地层主要分布在邢台东断裂以东的区域。

     

    Abstract: By collecting existing drilling data in Xingtai area, combining with shallow seismic exploration results, deep exploration results and some petroleum geophysical data, a three-dimensional visualization Petrel modeling software was used to solve the problem of complex geological phenomena in modeling. The geological phenomena in the study area were finely expressed, and a three-dimensional model of the Quaternary system in Xingtai area was established. The distribution characteristics of the Quaternary system in Xingtai area were analyzed in detail. The simulation results show that the southern central part of Xingtai area is a large uplift area with a diameter of about 5 km. The Neogene and Quaternary systems in the area are continuous deposits without clear boundaries. On the whole, the strata show a characteristic of thick in the east and thin in the west, with relatively thin or almost absent Neogene in the western part of the East Xingtai Fault. The strata of Q1, Q2 and Q3 are relatively thick, reaching a thickness of 60-150 meters. The central position in the southern part of the strata is missing, with a diameter range of about 3-5 kilometers. The R stratum is mainly distributed in the area east of the East Xingtai Fault.

     

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