Hyperspectral Mapping And Validation Parameters Based On Spectral Feature Extraction

After the development of remote sensing technology in recent decades, from multi spectrum to high spectrum, from satellite to aviation, remote sensing technology has been developed into a mature and constantly improve the discipline. And remote sensing technology for geological exploration has gradually revealed its unique advantages. Oil and gas reservoir after which, it is possible to leakage or migration, in the process of oil and gas will have different effects on the surrounding soil minerals.For minerals has the following several aspects of the influence of the specific impact:on the one hand, the surface of rock or soil mineral composition and ground spectral anomalies; On the other hand in the exception or leakage detection of oil and gas, and quantitative research. Above the value of the visual performance, has the following features obvious change: the content of carbonate minerals, including the content of clay minerals, and containing the bivalent iron content of or related to the growth of other mineral content corresponding to the relative weakening. In showed carbonate reservoir exploration process, therefore, clay and bivalent iron to carries on the appraisal.Of hyperspectral remote sensing technology to develop rapidly in recent years, in the process of its development, aerial hyperspectral, with its high spectral resolution,high spatial resolution, has the advantages of other technologies without aerial hyperspectral general spectral resolution can reach nanoscale, and aerial hyperspectral images and more clear.Using of the measured ground spectral series of pretreatment, through the IDL language to deal with spectra and extract the abnormal information spectrum characteristics of oil and gas, get the micro leakage caused by the surface oil and gas related alteration mineral content and its depth, width, spectral absorption peak absorption characteristic parameters such as area. Combination of hyperspectral image data to establish the method of determination of relevant alteration mineral content, and use all kinds of oil and gas exploration anomaly information content of representing the degree of oil and gas percolation of possibility.This study based on multi-source hyperspectral remote sensing data and the measured spectral data of the ground test and analysis, and combining with other remote sensing data and geophysical data, theoretical analysis to the oil and gas from oil and gas percolation mechanism of spectrum analysis, establish about micro seepage model, and finally to extract abnormal information of oil and gas. Through this analysis, the research of oil and gas percolation of oil and gas, and oil and gas detection provides a cheap and convenient way.