Application of 3D seismic data fine processing technology in District 31, Qinan coal mine

Abstract

In order to further find out the geological condition of District 31, Qinan coal mine, according to the characteristics of mining area data and geological tasks, the techniques of pre-stack noise, deconvolution and prestack time migration were applied, and the 3d seismic original data collected before the mining area were processed again. The results of two fault interpretations: 152 faults were basically the same, 6 faults were revised, 60 faults were newly discovered, and 6 faults were negated; According to the classification and statistical comparison of fault reliability, there were 115 reliable faults in the first interpretation and 195 in the second interpretation, which increased by 80. The results show that the signal to noise ratio and resolution of 3D seismic data were improved, the breakpoint is clearer and the fault interpretation is more reasonable and reliable. Fine processing can improve the utilization rate of the original data of 3D seismic exploration, save the acquisition cost, improve the economic benefit, and provide reliable basic data for the development and utilization of coal resources.