Method and device for predicting gas outburst area
A gas outburst and prediction method technology, applied in geophysical measurement, instruments, etc., can solve the problems of poor preset accuracy and single prediction method, and achieve the effect of accurate prediction
Active Publication Date: 2017-05-10
CHINA UNIV OF MINING & TECH (BEIJING)
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[0004] The object of the present invention is to provide a method and device for predicting gas outburst areas, so as to alleviate the technical problem in the prior art that the prediction accuracy is poor due to the single prediction method when predicting gas outburst areas in coal mines
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[0021] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. 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.
[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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The invention provides a method and a device for predicting a gas outburst area, and relates to the technical field of coalfield gas outburst disaster prediction. The method comprises the steps of: acquiring seismic wave imaging data, seismic prestack inversion data and layer data of a target layer within a preset spatial range; determining a first coal bed area and a second coal bed area within the preset spatial range according to the seismic wave imaging data, seismic prestack inversion data and layer data; determining a superposition area of the first coal bed area and the second coal bed area as an area to be determined, wherein the probability of geological disaster in the area to be determined is higher than that in other areas; and determining whether the area to be determined is a gas outburst area according to logging data of the area to be determined, thereby solving the technical problem of low preset precision caused by single prediction mode when the gas outburst area of a coal mine is predicted in the prior art.
Description
technical field [0001] The invention relates to the technical field of coalfield gas outburst disaster prediction, in particular to a method and device for predicting a gas outburst area. Background technique [0002] With the increase of the number of coal mines in our country, the incidence of gas outburst accidents in coal mines is also gradually increasing. Gas outburst accidents refer to accidents caused by geological disasters caused by the instantaneous release of a large amount of gas and coal from weak coal seams under the action of in-situ stress as the depth of coal mining increases and the gas content in coal mines increases. The goal is that gas outburst accidents have become one of the three major power disasters in coal mines. Our country is one of the countries with the most serious number of gas outburst accidents and the number of deaths in gas outburst accidents. In this regard, relevant researchers have conducted a lot of research on the prevention of ga...
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IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 彭苏萍赵惊涛杜文凤崔晓芹梁明星
Owner CHINA UNIV OF MINING & TECH (BEIJING)