Joint inversion of time-frequency electromagnetic and magnetotelluric data 时频电磁与大地电磁数据联合反演
The time-frequency electromagnetic method is a controlled-source electromagnetic method, which has a strong anti-interference ability and a high resolution for the electrical layer in the middle and shallow layers. However, it is limited by the lowest excitation frequency and has a limited reflection of the deep layer. The magnetotelluric method is a natural source electromagnetic method, which features low measurement frequency and large detection depth. Hence, the two methods are complementary. In this paper, on the basis of Occam's inversion algorithm, a new joint weighting method is proposed for the joint inversion between time-frequency electromagnetic and magnetotelluric data. The data of model and field tests show that the joint inversion of time-frequency electromagnetic and magnetotelluric data can improve the resolution of shallow electrical anomalies, optimize the detection accuracy of deep electrical layers, and improve the ability of electromagnetic exploration to solve geological problems.
Cited Times [WOS]:0
|Document Type||Journal Article|
|Department||Department of Earth and Space Sciences|
1.GME and Geochemical Surveys,BGP Inc.,CNPC,Zhuozhou,Hebei,072751,China
2.Department of Earth and Space Sciences,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
3.Shenzhen Key Laboratory of Deep Offshore Oil and Gas Exploration Technology,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
|Corresponding Author Affilication||Department of Earth and Space Sciences; Southern University of Science and Technology|
Hu，Zuzhi,Liu，Xuejun,Wang，Zhigang,等. Joint inversion of time-frequency electromagnetic and magnetotelluric data 时频电磁与大地电磁数据联合反演[J]. Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting,2023,58(3):720-727.
Hu，Zuzhi,Liu，Xuejun,Wang，Zhigang,He，Zhanxiang,&Yang，Jun.(2023).Joint inversion of time-frequency electromagnetic and magnetotelluric data 时频电磁与大地电磁数据联合反演.Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting,58(3),720-727.
Hu，Zuzhi,et al."Joint inversion of time-frequency electromagnetic and magnetotelluric data 时频电磁与大地电磁数据联合反演".Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting 58.3(2023):720-727.
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