地球物理矢量场磁测技术的研究进展

发布时间：2018-02-09 09:56

本文关键词： 矢量磁测地球物理勘探岩矿体评估磁力仪　出处：《科学通报》2017年23期 　论文类型：期刊论文

【摘要】：矢量磁测技术是工程和环境地球物理勘探中最有效的方法之一,与传统总场强度或总场梯度测量相比,可同时获取地磁场模量大小和方向信息,有效减少反演中的多解性,有助于对磁性体的定量解释,获得更多更准确的反映场源的信息,提高目标体的探测分辨率和定位精度.本文根据不同应用环境,介绍了地面矢量磁测、井中矢量磁测、海洋矢量磁测、航空矢量磁测及卫星矢量磁测等技术的应用情况和技术特点,综述了各矢量磁测仪器装备的国内外研究现状.最后,分析了矢量磁测技术的发展趋势,即由单一的总场或总场梯度测量,转向为多信息的矢量场测量或多参量测量;从低效率、探测深度浅的地面磁测转向高效率航空、大深度井中或深海目标体的快速定位与探测,并逐步发展为地面、井中、海洋、航空、卫星联合磁测和解释.通过各磁测技术和方法的优势互补,提高地球物理磁场测量精度和反演分辨率.
[Abstract]:Vector magnetic measurement is one of the most effective methods in engineering and environmental geophysical exploration. Compared with the traditional total field intensity or total field gradient measurement, the geomagnetic modulus and direction information can be obtained simultaneously, and the multi-solution in inversion can be effectively reduced. This paper is helpful to the quantitative interpretation of magnetic body, to obtain more and more accurate information reflecting the field source, to improve the detection resolution and positioning accuracy of the target body. According to the different application environment, this paper introduces the surface vector magnetic logging and the well vector magnetic survey. The application and technical characteristics of marine vector magnetic measurement, aeronautical vector magnetic measurement and satellite vector magnetic measurement are reviewed. The research status of each vector magnetic measurement instrument at home and abroad is summarized. Finally, the development trend of vector magnetic measurement technology is analyzed. That is, from single total field or total field gradient measurement to multi-information vector field measurement or multi-parameter measurement, from low-efficiency, shallow sounding surface magnetic survey to high-efficiency aeronautical, deep well or deep-sea target rapid positioning and detection, And it is gradually developed into the joint magnetic survey and interpretation of ground, well, ocean, aviation and satellite. By complementing the advantages of various magnetic survey techniques and methods, the precision of geophysical magnetic field measurement and inversion resolution can be improved.
【作者单位】：吉林大学仪器科学与电气工程学院地球信息探测仪器教育部重点实验室;
【基金】：国家自然科学基金(41474091) 吉林省科技发展计划(20160520109JH,20170101065JC)资助
【分类号】：P631

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