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Method and device for three-dimensional seismic tomography

A technology of tomography and 3D seismic, applied in the field of mine exploration, can solve problems such as inaccurate judgment

Active Publication Date: 2019-08-06
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a method and device for three-dimensional seismic tomography to overcome the technical problem of inaccurate determination of the geological structure of the coal seam working face in the prior art

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  • Method and device for three-dimensional seismic tomography
  • Method and device for three-dimensional seismic tomography
  • Method and device for three-dimensional seismic tomography

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Embodiment Construction

[0049] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] figure 1 Schematic diagram of the layout of the seismic wave transceiver device provided by the present invention, figure 2 For the flow chart of Embodiment 1 of the method for three-dimensional seismic tomography provided by the present invention, see figure 1 , in the bottom pumping roadway 1 of the coal seam, the high pumping roadw...

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Abstract

The invention provides a method and device for three-dimensional seismic tomography. In the bottom pumping roadway, high pumping roadway and coal roadway of the coal seam, a plurality of geophones and a plurality of seismic sources are arranged, and the method for three-dimensional seismic tomography provided by the present invention includes: for each seismic source, obtaining all geophones received The seismic wave signal after the propagation of the seismic wave sent by the seismic source is obtained; according to the seismic wave signal corresponding to each seismic source and the path length set, the propagation velocity of the P wave in the seismic wave in the space between the bottom pumping roadway and the high pumping roadway is obtained Distribution image; the path length set is a set of path lengths that the seismic wave propagates in each network element of the three-dimensional velocity model in the above-mentioned space when the seismic wave emitted by the predicted seismic source reaches each geophone. The image formed by the three-dimensional seismic tomographic imaging method and device of the present invention can accurately reflect the structural features of the actual coal seam working face.

Description

technical field [0001] The invention relates to mine exploration technology, in particular to a method and device for three-dimensional seismic tomography. Background technique [0002] The application of coal mine mechanization has improved the level of coal mining, and the layout of the coal seam working face in the coal mining area tends to be larger in width and long in direction. Therefore, it is necessary to further strengthen the degree of attention to the geological conditions in the working face. The primary task of coal mine safety production is to ensure the safety of the staff, however, hidden geological anomalies in the coal seam working face often cause huge economic losses and casualties. Specifically, it includes the type, exact location and scale of geological bodies such as hidden structures. It is very important to find out the geological conditions in the working face timely and effectively for the safe and efficient production of the mine. [0003] Amo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/34G01V1/28
CPCG01V1/286G01V1/345
Inventor 张平松胡泽安吴海波刘畅吴荣新郭立全
Owner ANHUI UNIV OF SCI & TECH
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