A mine stratum hydraulic fracturing ground microseismic monitoring method and system

Abstract

The present application provides a kind of mine stratum hydraulic fracturing ground microseismic monitoring method and system, comprising: obtaining the mining engineering plan of mining coal seam in mining area, determine relevant parameters;Obtain the plane coordinate and latitude and longitude coordinate information of multiple control points, calculate the seven parameter correction amount of latitude and longitude coordinate and plane coordinate mutual conversion;With the center of preliminary monitoring area as origin, with control point as vertex, the accurate monitoring area of rectangle is demarcated and each vertex plane coordinate value is recorded;According to the observation system and the velocity model of stratum, wave field record is obtained based on given known seismic source in monitoring area, determine the distance between geophones;Based on the distance between geophones, the accurate monitoring area is discretized, the arrangement of geophone is determined, and the plane coordinate of geophone is converted into latitude and longitude coordinate;According to the latitude and longitude coordinate of converted geophone, the geophone is laid out, and the sampling interval is determined for microseismic monitoring.The present application solves the problem of large error and high cost of existing microseismic monitoring.

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