Earth exploration method and device

A geodetic and data signal technology, applied in the field of electromagnetic prospecting, can solve problems such as poor accuracy of geodetic prospecting

Inactive Publication Date: 2017-07-07
PETROCHINA CO LTD
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Problems solved by technology

[0005] In order to solve the problem of poor accuracy of geodesic exploration, the present invention provides a method and device for geodesic exploration

Method used

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  • Earth exploration method and device
  • Earth exploration method and device

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Embodiment Construction

[0058] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0059] like figure 1 As shown, the embodiment of the present invention provides a method for geodetic exploration, which may include:

[0060] Step 101, collecting data signals reflecting the magnetotelluric field.

[0061] Step 102, performing denoising processing on the data signal by means of wavelet analysis to obtain a target signal.

[0062] Step 103, determine the ground structure according to the target signal.

[0063] To sum up, in the geodesic prospecting method provided by the embodiment of the present invention, after the data signal reflecting the magnetotelluric field is collected, the data signal is de-noised by means of wavelet analysis to obtain the target signal, and according to the target signal , to determine t...

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Abstract

The invention discloses an earth exploration method and device, and belongs to the field of electromagnetic exploration. The earth exploration method comprises the steps of collecting data signals reflecting the earth electromagnetic field; performing denoising processing on the data signals by adopting a mode of wavelet analysis so as to acquire target signals; and determining the earth structure according to the target signals. According to the earth exploration method, a problem of poor accuracy of earth exploration is solved, and the accuracy of earth exploration is improved. The earth exploration method and device are applied to earth exploration.

Description

technical field [0001] The invention relates to the field of electromagnetic prospecting, in particular to a method and device for earth prospecting. Background technique [0002] Before oil exploration, in order to understand the structure of the earth, it is often necessary to conduct earth exploration. [0003] In related technologies, when performing geodesic exploration, it is first necessary to collect data signals reflecting the magnetotelluric field, and then determine the geodetic structure according to the collected data signals. Specifically, the resistivity and depth of each position in the earth, the thickness of each formation in the earth, and the distribution of oil in each formation can be determined according to the collected data signals. [0004] In the related art, the collected data signal contains noise, and the noise has a great influence on the data signal in the low frequency band, therefore, there are errors in the determined geodetic structure, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/38
CPCG01V3/38
Inventor 肖阳陈清礼田建章严良俊叶秋焱李晓燕辛玮江张传宝芦丽菲王雪萍叶玮
Owner PETROCHINA CO LTD
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