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时频电磁法频率域视电阻率求取方法研究

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时频电磁法(TFEM)是一种应用于油气勘探领域,可同时实现时间域和频率域电磁一体化勘探的可控源电磁方法.本文引入水平电流场源定义的广义视电阻率,结合TFEM的发射源特征,实现TFEM频率域视电阻率的求取;分析不同偏移距、发设距水平电场振幅和视电阻率特征,验证了方法的可行性.TFEM频率域视电阻率的求取和基于模型的研究,为TFEM勘探采集参数的设计和采集数据的处理提供科学的借鉴和参考.
Calculation and Application of Apparent Resistivity in the Frequency Domain by TFEM
The time-frequency electromagnetic method(TFEM)is a controllable source electromagnetic method applied to oil and gas exploration.In traditional TFEM,the amplitude and phase of the electric field are used to correct the data in the frequency domain.It also contains information about the parameters of the observation system;therefore,it is challenging to directly correct the data,which affects the efficiency and precision of data processing.This study introduces the generalized apparent resistivity defined by the horizontal current field source and obtains the apparent resistivity in the frequency domain of a TFEM by combining the characteristics of the TFEM emitter and an observation system.The feasibility of the proposed method was verified by analyzing the characteristics of the electric field amplitude and apparent resistivity of the primary observation parameters,such as the offset and launch distance.The calculation of apparent resistivity in the frequency domain of TFEM and research based on the model provide scientific references for the design of TFEM exploration and data processing.

TFEMfrequency domainapparent resistivitydesign of acquisition parametersdata processing of collection

李竹强、付国强、谭绍泉、陈学国、郭涛、相鹏、杨永红、何展翔

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中国矿业大学资源与地球科学学院,江苏徐州 221116

中国石化胜利油田分公司勘探开发研究院,山东东营 257000

南方科技大学前沿与交叉科学研究院,广东深圳 518055

时频电磁法 频率域 视电阻率 采集参数设计 采集数据处理

Jiangsu Province Carbon Peak Carbon Neutral Technology Innovation Project in ChinaSinopec Science and Technology Research ProjectSinopec Science and Technology Research ProjectShengli Oilfield Company Science and Technology Research Project

BE2022034P21079-3P22090YKS2201

2024

10.1007/s11770-024-1081-z

应用地球物理(英文版)
中国地球物理学会

应用地球物理(英文版)

影响因子：1.01
ISSN：1672-7975
年,卷(期)：2024.21(2)
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