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Seismic Wave Method In Search For The Research On The Application Of Deep Coal Mine

Posted on:2014-02-10Degree:MasterType:Thesis
Country:ChinaCandidate:Z L YangFull Text:PDF
GTID:2250330392472845Subject:Earth Exploration and Information Technology
Abstract/Summary:PDF Full Text Request
Coal is one of the major energy in China, since the founding of New China,accounting for more than70%the proportion of coal in China’s primary energy productionand consumption structure. As China has entered a new period of building a moderatelyprosperous society, rapid economic growth and the acceleration of the process of globaleconomic integration, domestic demand and foreign coal exports will gradually increase.The most important symbol of the energy security of energy supply and to ensure thecontinued progress of the national economic and social development. However, with theincrease of years of coal mining and mining increased strength, a number of old minesshallow resources have been close to or is about to face the depletion The data show thatthe proved reserve is obviously insufficient resources. This is undoubtedly there is aserious issue of energy security, in large part, is coal resource security issues. In order tomaintain the sustained and stable development of the coal industry that should be placed onthe periphery of the old mining seeking coal reserves expand its work, but also improve thebasic geological work and pre-Find coal mine external conditions better region toguarantee national energy strategy the steady implementation. Mining deep coal seams hasbecome the main target for the future development of these mines.Seismic exploration technology is a deep looking for coal geophysical technology.The seismic exploration compared to other geophysical technology has the advantages oflarge exploration depth, high-resolution, high signal-to-noise ratio, high-fidelity. Seismicexploration method Coal Geology increasingly widespread attention. Two-dimensionalseismic exploration methods has also become one of the most important means to find coalin addition to drilling. Two-dimensional seismic exploration, low cost, high efficiency, it isincomparable3D seismic and drilling work. Prospecting used first in the pre-Find coal,drilling verification, seismic and drilling combined match geophysical logging, drillingtargeted, the more you can save money and play a multiplier effect.This paper describes the2D seismic reflection wave method, time-depth conversionof seismic waves, the original basic principle of seismic exploration, seismic explorationsystem design and experimental data processing and interpretation of key technologyfeatures and the problems discussed. Instance of the main line of seismic exploration and analysis of the region’s first coal-forming law, to determine the exploration of the targetlayer; followed in accordance with the actual geological conditions and geophysicalcharacteristics, seismic exploration of the experimental work carried out in the work area,the select field parameters; detail again data processing flow, and several key technologiesin the data processing, and the actual work detailed explanation; Finally, according to theresults of seismic interpretation, combined with the results of drilling data and velocityanalysis, the depth of the Cenozoic the bottom interface changes situation, the distributionof coal seam structure, stratigraphic occurrence and distribution of coal-bearing stratarange, initially identified the main coal layer depth and range, good geological results andsubmitted334reserves.
Keywords/Search Tags:seismic exploration, reflection wave, coal field, data interpretation
PDF Full Text Request
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