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

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

Active Publication Date: 2022-07-22
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, device and intelligent terminal in controllable source electromagnetic method measurement

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[0022] In order to make the purposes, 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 with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0023] Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary ski...

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Abstract

The invention provides a static displacement correction method, a device and an intelligent terminal in a controllable source electromagnetic measurement, which relate to the technical field of geophysical electromagnetic exploration, and include acquiring a measurement magnetic field and a measurement point at a receiving area corresponding to an excitation field source of an electrical source The electric field is measured; the corrected apparent resistivity is calculated based on the measured magnetic field; the corrected electric field is obtained according to the corrected apparent resistivity, and the measured electric field is corrected based on the corrected electric field. The invention effectively reduces the influence of the static displacement on the collected data in the controllable source electromagnetic method detection, and improves the exploration accuracy.

Description

technical field [0001] The invention relates to the technical field of geophysical electromagnetic exploration, in particular to a static displacement correction method, device and intelligent terminal in controllable source electromagnetic measurement. Background technique [0002] Controlled-source electromagnetic method (CSEM) is an artificial source frequency domain electromagnetic sounding method in geophysical exploration. Electromagnetic field, measuring the electromagnetic response and calculating the impedance response and apparent resistivity response, a method to realize the exploration of the electrical structure of the earth's interior. Its working frequency can be from tens of thousands of hertz to a few tenths of hertz, and the purpose of sounding can be achieved by changing the frequency. The method is widely used in mineral exploration, hydrological engineering geological exploration, geothermal exploration, geological structure detection and so on. [000...

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Application Information

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Patent Type & Authority Patents(China)
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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