瞬变电磁法在煤炭领域的研究与应用新进展

发布时间：2018-05-06 22:20

本文选题：深部煤层 + 瞬变电磁　；参考：《地球物理学进展》2017年01期

【摘要】：随着浅部煤炭资源开采进入尾声,深部煤层的勘探与开发成为下一步的发展趋势.为了探索瞬变电磁在煤炭领域的发展突破方向,本文从理论、方法、技术、装备及应用等方面对瞬变电磁法用于煤田探测的研究成果进行了分析总结.首先介绍近年来瞬变电磁法在地面和井下的最新进展,包括时变点电荷载流微元理论、瞬变电磁全空间理论、修正式中心回线法、电性源短偏移深部探测法、小回线大电流法、矿井强干扰处理技术、地形影响校正技术、联合时-频处理技术、以及在井下和有低阻覆盖时观测数据的处理技术等.然后,结合实际情况,说明瞬变电磁法在煤炭领域的应用效果.最后,展望了瞬变电磁法在煤田领域的研究方向,包括进一步完善电性源近场探测理论和全空间物理场基础理论,开发精细数据处理的方法及地面-井下联合分析方法等.
[Abstract]:With the end of shallow coal resource mining, the exploration and development of deep coal seam becomes the next development trend. In order to explore the breakthrough direction of transient electromagnetic in coal field, this paper analyzes and summarizes the research results of transient electromagnetic method in coalfield exploration from the aspects of theory, method, technology, equipment and application. First of all, the recent progress of transient electromagnetic method in surface and underground is introduced, including the theory of time-varying point charge carrying micro-element, the theory of transient electromagnetic full space, the correction of formal central loop method, the deep detection method of short migration of electric source, the method of large current of small loop line. Mine strong interference processing technology, terrain impact correction technology, combined time-frequency processing technology, and the processing technology of observation data in underground and low resistance coverage, etc. Then, combined with the actual situation, the application effect of transient electromagnetic method in coal field is explained. Finally, the research direction of transient electromagnetic method in coal field is prospected, including further improving the theory of near-field detection of electric source and the basic theory of all-space physical field, developing the method of fine data processing and the method of ground-downhole joint analysis, etc.
【作者单位】：中国科学院矿产资源研究重点实验室中国科学院地质与地球物理研究所;中国矿业大学;
【基金】：国家自然科学研究基金(41474095) 中国科学院地质与地球物理研究所矿产资源重点实验室开放课题国土资源部煤炭资源勘查与综合利用重点实验室开放课题联合资助
【分类号】：P631.325

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