The Research Of Oil Geochemical Of Exploration Southern Margin Of Jiergalang Song Liao Base

The Space property and Spectral features of Remote sensing technology can solve many problems that can not be solved by General geologic means, which makes Remote sensing technology as an important exploring means enjoy unprecedented growth and universal application and show some advantages in geological prospecting.This paper uses Inner Mongolia horqin Left-wing Jargalang as a workplace for research. and remote sensing images as treating platforms. With the gas and oil Geochemistry exploration and on the basis of the enhance of image processing, the paper highlights feature information of remote sensing images. Acording to ETM+data characteristic value of each band selection in ETM753 extraction tectonic information,This paper analyses all kinds of ratio analysis (such as 5/1,7/5,7/3,(7-5)/(7+5), etc) practical standard deviation, correlation coefficient, covariance and characteristic value seven kinds of band combination on the basis of the structural oil-control theory.Finally, combined with oil and gas geochemical geological data, etc,the paper makes a comprehensive interpretation and finds [7,5,7/3] is the best combination of bands superimposed and the effect of oil and gas extraction in the region is better. After the extraction of oil and gas halo information and combines geochemical exploration in the study area, abnormal area is delineated. Main results of this study as follows:1 The extraction of oil and gas halo information and oil and gas geochemical exploration in the study area is matched2 Work area geochemical field (acidolysis hydrocarbon, adsorbed hydrocarbons) is a non-uniform field. Compared with the domestic oil and gas basins, field intensity is low, with low background and high dispersion characteristics. Background field performs for east high west low, south high north low, Anomalous field is the same, which reflects the characteristics of the distribution of geochemical anomalies.3 Soil acid solution, the index concentration adsorption hydrocarbon clays hydrocarbon, Ultraviolet-fluorescence spectrum the index band combination features reflect.4 Explanation and Delineation of Comprehensive geochemical Abnormalities is 11, in whichâ… grade 1,â…¡grade 3,â…¢grade 7, Control area is 25.76 square kilometers, which accounts 11.20% in measured area. Abnormal pattern is mainly Ring, block and ring-block.5 Abnormal form is north east, north west, and nearly north-south trending, which has some relevances with Mesozoic regional structures in Zhang Qiangnorthern Jill honk lang sub-sag.