煤炭资源空间分布分形特征和厚度变化规律分形滤波方法研究

发布时间：2018-07-05 15:49

本文选题：煤层厚度 + 空间分布规律　；参考：《金属矿山》2017年10期

【摘要】：利用全球煤炭资源量分布图和中国煤炭资源量数据,证实了煤炭资源空间分布的分形特征;基于煤炭形成的自相似性原理,利用淮北某煤田168个钻孔的10煤层层厚数据,通过正态变换和克里格插值,利用S-A方法进行多重分形滤波,将煤层厚度等值线图分解为背景图和异常图,背景图代表了煤层分布的趋势,其分布规律与下伏砂体指示的和沉积相分布有较好的对应关系,符合沉积学规律,异常图显示的煤层厚度次级变化特征也与沉积环境的填平补齐相对应,相比趋势面分析得到的趋势图和残差图,表达的煤层厚度分布规律更加清晰和精细,不仅表明煤层厚度的空间分布符合多重分形分布规律,而且表明多重分形方法对地质数据的处理和分析是十分有效的。
[Abstract]:The fractal characteristics of the spatial distribution of coal resources are confirmed by using the global distribution map of coal resources and the data of China's coal resources. Based on the principle of self-similarity of coal formation, the 10 coal seam thickness data from 168 boreholes in a coal field in Huaibei are used. Through normal transformation and Kriging interpolation, multifractal filtering is carried out by S-A method. The contour map of coal seam thickness is decomposed into background map and abnormal map. The background map represents the distribution trend of coal seam. The distribution law has a good correspondence with the distribution of sedimentary facies indicated by the underlying sand body and accords with the sedimentology law. The secondary variation characteristics of coal seam thickness shown by the abnormal map also correspond to the filling and leveling of the sedimentary environment. Compared with the trend map and residual map obtained by trend surface analysis, the distribution law of coal seam thickness is clearer and more precise, which not only shows that the spatial distribution of coal seam thickness accords with the multi-fractal distribution law. It also shows that multifractal method is very effective in processing and analyzing geological data.
【作者单位】：安徽理工大学地球与环境学院;
【分类号】：P618.11

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