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Static displacement correction method and device in controlled source electromagnetic method measurement and intelligent terminal

A technology of static displacement and correction method, which is applied in the field of geophysical electromagnetic exploration, can solve the problems of electric field component enhancement and weakening, and achieve the effect of reducing influence and improving exploration accuracy

Active Publication Date: 2020-04-10
中国地质科学院地球物理地球化学勘查研究所
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Problems solved by technology

[0004] The purpose of the present invention is to provide a static displacement correction method, device and intelligent terminal in the measurement of the controlled source electromagnetic method, so as to reduce the observation errors caused by inhomogeneous objects in the prior art when the controllable source electromagnetic method is used for detection. The technical problem of the sudden increase or decrease of the electric field component (i.e. static displacement)

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  • Static displacement correction method and device in controlled source electromagnetic method measurement and intelligent terminal
  • Static displacement correction method and device in controlled source electromagnetic method measurement and intelligent terminal
  • Static displacement correction method and device in controlled source electromagnetic method measurement and intelligent terminal

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[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0023] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention provides a static displacement correction method and device in controlled source electromagnetic method measurement and an intelligent terminal, and relates to the technical field of geophysical electromagnetic exploration. The method comprises the steps of: acquiring a measurement magnetic field and a measurement electric field at a receiving region measurement point corresponding to an excitation field source of an electrical source; calculating a corrected apparent resistivity based on the measurement magnetic field; and acquiring a correction electric field according to the corrected apparent resistivity, and correcting the measurement electric field based on the correction electric field. According to the invention, the influence of static displacement on acquired data in controlled source electromagnetic method detection is effectively reduced, and the exploration precision is improved.

Description

technical field [0001] The invention relates to the technical field of geophysical electromagnetic prospecting, in particular to a static displacement correction method, device and intelligent terminal in controllable source electromagnetic measurement. Background technique [0002] The controlled-source electromagnetic method (CSEM for short) is an artificial source frequency-domain electromagnetic sounding method in geophysical exploration, using a finite length of wire grounded at both ends as the emission source, through artificially excited alternating Electromagnetic field, measuring the electromagnetic response and calculating the impedance response and apparent resistivity response, is a method to realize the exploration of the electrical structure inside the earth. Its operating frequency can range from tens of thousands of hertz to a few tenths of a hertz, and the purpose of sounding can be achieved by changing the frequency. This method is widely used in mineral ...

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Application Information

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IPC IPC(8): G01V3/08G01V3/38
CPCG01V3/083G01V3/38
Inventor 李建华林品荣郑采君李勇丁卫忠孙夫文刘昕卓齐方帅
Owner 中国地质科学院地球物理地球化学勘查研究所
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