鄂尔多斯盆地北部伊和乌素地区CSAMT数据反演参数及效果评价研究

Discussion on inversion parameters and effect evaluation of CSAMT data in Yihewusu area,North Ordos Basin

基于研究区可控源音频大地电磁测深(CSAMT)数据与收集钻孔资料,开展了反演参数分析,在此基础上对反演效果进行了评价,目的是提升电磁法数据精细化处理水平,为类似地区数据反演处理提供借鉴。研究表明:数据反演处理中,选择适宜的约束反演参数是提高反演效果的关键;综合对比分析认为,研究区数据可靠、反演参数基本适宜,反演结果基本可靠,获得了较好的反演效果。

Based on CSAMT data and drilling hole data in the study area,the inversion constraint parameters are analyzed,andthe inversion effect is evaluated.The purpose is to improve the precisionprocessing level of electromagnetic data and to provide a reference for data processing in the similar areas.The result shows that selecting appropriate inversion constraint parameters is the key to improve the inversion effect in data inversion processing.For the comprehensive analysis,it is considered that the data in the study area is reliable,the inversion parameters are basically suitable,the inversion result is basically reliable,and a good inversion result is obtained.