Application Of Three-dimensional Seismic Exploration In Dense Village Area Of Yaoqiao Coal Mine

Based on the engineering background of Yaoqiao Coal Mine,the three-dimensional seismic exploration technology in mining area is systematically studied by combining theoretical analysis with engineering practice.Firstly,the basic principle of three-dimensional seismic exploration technology is introduced systematically.Combining with the geological situation and seismic geological conditions of Yaoqiao Coal Mine,the exploration technology in dense Village which account for up to 33% is studied and analyzed carefully.After design and optimization,a three-dimensional seismic exploration observation system suitable for Yaoqiao Coal Mine is laid out.The structural interpretation method of Yaoqiao Coal Mine is established,the structural distribution law of the mining area is obtained,and Yao is developed.Application of 3-D seismic exploration in dense Village area of Yaoqiao Coal Mine.Through the stratum structure characteristics and geophysical characteristics of Yaoqiao Coal Mine,the well depth is 11 m,the dose of 600 g is stimulated,and the computer simulation design is carried out according to the characteristics of dense villages with 33% of the surface villages in this area.The comparison,combined with the results of the earthquake test in this area,while taking care of the superposition characteristics of the seismic waves,the optimized regularized elements of the 8-line12 can be optimized with azimuth characteristics and uniform distribution of the offsets in the common reflection surface element gathers.Subdivide the observing system.Detailed analysis of 3 d seismic processing techniques including static correction method,amplitude fidelity,integrated denoising technique,surface consistent deconvolution and DMO processing technology,etc.,and according to the characteristics of earthquake Yaoqiao coal mine of the above technology has carried on the corresponding processing and testing,through the comparison and analysis,finally get the size of 3790 m by 2500 m x 1.5 s 3-d migration data volume.This paper analyzes the practical application effect of three-dimensional seismic exploration and processing technology,improves the structural interpretation method of yaqiao coal mine,and finds out the main coal seam structure in the research area.46 faults on 7 coal seams were found out in the whole area,including 5 faults with amedium-term drop of more than 20 m,10 faults with a 10-20 m depth,and 31 faults with a 5-10 m depth.Generally speaking,it is a monoclinal structure trending to the east-west trend north.In the proved area,there are 4 folds with the amplitude of more than 5m,including 2 anticlines and 2 synclines.