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Magnetotelluric anisotropy collecting system, method and device

An anisotropic and magnetotelluric technology, applied in the field of geophysical exploration, can solve problems such as the inability to collect anisotropy of geophysical media, and achieve the effect of reducing costs and improving efficiency

Active Publication Date: 2019-02-15
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0006] The embodiment of the present invention provides a magnetotelluric anisotropy collection system, method and equipment to solve the problem that in the prior art, it is impossible to simultaneously collect orthogonal electric field and magnetic field signals in different directions at the same measuring point to study the anisotropy of geophysical media. Problems of the opposite sex

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the technical solutions in the application, the following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Obviously, the described The embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0029] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or a central element may also exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or an intermediate element may be present at the same time. T...

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Abstract

The invention provides a magnetotelluric anisotropy collecting system, method and device. The system comprises a collecting station, electric field sensors, magnetic field sensors and a wireless datatransceiver; the collecting station comprises 4N electric field data collecting channels and 2N+1 magnetic field data collecting channels, wherein N is a positive integer larger than or equal to 2; each electric field data collecting channel is connected with an electric field sensor, and each magnetic field data collecting channel is connected with a magnetic field sensor; the electric field sensors and the magnetic field sensors are used for collecting electric signals and magnetic field signals in at least two directions of a target measuring point; and the wireless data transceiver is connected with the collecting station and used for transmitting the electric signals collected by the electric field sensors and the magnetic field signals collected by the magnetic field sensors to outside. According to an embodiment, the system can collect the electric signals and the magnetic field signals in the at least two directions at the same measuring point, so that the magnetotelluric anisotropy observation is realized, the magnetotelluric anisotropy collection cost is reduced, and the efficiency of magnetotelluric anisotropy collection is improved.

Description

Technical field [0001] The invention relates to the technical field of geophysical prospecting, in particular to a magnetotelluric anisotropy acquisition system, method and equipment. Background technique [0002] Magnetotelluric (MT) is a geophysical exploration method that uses natural electromagnetic fields as the field source to study the electrical structure of the earth's interior. It has now become an indispensable method for deep geophysical exploration. The magnetotelluric method is an exploration method that measures the surface horizontal electric field component and the orthogonal horizontal magnetic field component and the vertical magnetic field component at various frequencies, and then uses forward and inverse methods to study the electrical structure of the earth. [0003] Generally, in the inversion and interpretation of magnetotelluric data, the earth conductivity model is considered as an isotropic medium that may contain some laterally inhomogeneous structures,...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/02G01R29/08
CPCG01R29/08G01R33/02
Inventor 胡祖志刘云祥石艳玲何展翔张兆芳
Owner BC P INC CHINA NAT PETROLEUM CORP
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