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物探与化探  2022, Vol. 46 Issue (3): 737-742    DOI: 10.11720/wtyht.2022.1494
  方法研究·信息处理·仪器研制 本期目录 | 过刊浏览 | 高级检索 |
基于电阻率测井曲线的大地电磁测深标定
赵理芳(), 李爱勇, 王导丽, 张明鹏, 周锡明
江苏省有色金属华东地质勘查局八一四队,江苏 镇江 212004
Calibration of magnetotelluric sounding based on resistivity logging curves
ZHAO Li-Fang(), LI Ai-Yong, WANG Dao-Li, ZHANG Ming-Peng, ZHOU Xi-Ming
No. 814 Team, East China Mineral Exploration and Development Bureau for Non-ferrous Metals of Jiangsu Province, Zhenjiang 212004, China
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摘要 

大地电磁测深曲线畸变的校正是大地电磁勘探中的重要问题。通过在D盆地的电阻率测井曲线与大地电磁测深平移方式校正前后的反演测深曲线相比较,构造变换函数,实现了测井曲线对大地电磁测深曲线的标定。经过该技术改进的大地电磁反演结果与验证钻孔极为吻合,结合钻井、地震、重力、磁法资料进行综合分析,有效地揭示了D盆地的构造特征。

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赵理芳
李爱勇
王导丽
张明鹏
周锡明
关键词 测井曲线大地电磁测深标定变换函数    
Abstract

The distortion correction of magnetotelluric sounding curves is critical to magnetotelluric exploration. Based on the comparison between the resistivity logging curves of basin D and the basin's inversed sounding curves before and after being corrected through magnetotelluric sounding translation, this study constructed a transformation function and calibrated magnetotelluric sounding curves using logging curves. The magnetotelluric inversion results improved using the calibration technology proposed in this study are highly consistent with the verification boreholes. Finally, this study effectively revealed the structural characteristics of basin D by combining drilling, seismic, gravitational, and magnetic data.

Key wordslogging curve    magnetotelluric sounding    calibration    transformation function
收稿日期: 2021-09-03      修回日期: 2021-12-22      出版日期: 2022-06-20
ZTFLH:  P631  
基金资助:江苏省有色金属华东地质勘查局2019年度基础研究专项资金项目(HDYS-KY2019-02)
作者简介: 赵理芳(1973-),男,正高级工程师,主要从事地球物理综合处理解释工作。Email: 475399369@qq.com
引用本文:   
赵理芳, 李爱勇, 王导丽, 张明鹏, 周锡明. 基于电阻率测井曲线的大地电磁测深标定[J]. 物探与化探, 2022, 46(3): 737-742.
ZHAO Li-Fang, LI Ai-Yong, WANG Dao-Li, ZHANG Ming-Peng, ZHOU Xi-Ming. Calibration of magnetotelluric sounding based on resistivity logging curves. Geophysical and Geochemical Exploration, 2022, 46(3): 737-742.
链接本文:  
https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2022.1494      或      https://www.wutanyuhuatan.com/CN/Y2022/V46/I3/737
Fig.1  电阻率测井曲线及MT反演曲线
Fig.2  反正切函数示意
Fig.3  MT曲线校正示意
Fig.4  过YX4井测线的MT反演电阻率断面(局部)
Fig.5  过YX4井测线综合处理解释剖面
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