Longmen Mountain Hydrocarbon Leakage Information Extraction And Prediction Of Oil And Gas Fields Based On Survey And Remote Sensing Technology

Remote sensing survey technology has macroeconomic, rapid, efficient access to theearth’s resources. As a new method of oil and gas exploration, compared with the traditionalgeological content, geochemical exploration and seismic technology, its exploration cost islower. Remote sensing image, being processed and analyzed, can reflected some surfacenatural landscape and underground geological remote sensing information of certain depth.Therefore, based on oil and gas hydrocarbons slight leakage of remote sensing informationextraction method, and the analysis of the construction information, remote sensing image andinterpretation work, we can relatively accurately predict favorable oil and gas range and gasaccumulation zone, and judge the oil and gas geologic structure types, and fatherly determinethe oil depression belt.This thesis has the following contents and results:After full study of related remote sensing and surveying and mapping LongmenMountain area geological construction characteristics, and briefly discusses the modernremote sensing technology and remote sensing research development of oil and gas at homeand abroad, analyzes the feasibility of hydrocarbon leakage information extracting and oil andgas prediction based on remote sensing technology.According to data resources characteristics, this thesis discusses the ETM remote sensingimage pre-process, image production and key technology. And comprehensively analyzes thehydrocarbon leakage information extraction, and hydrocarbon erosion abnormality anderosion to demitint which can be technical and theoretical basis for further study.Based on the interpretation of remote sensing images, and Longmen Mountain’sgeological linear structure, ring structure, block structure, combination patterns, rock, stratum,structure characteristics and oil and gas leakage rules, using ETM remote sensing imagemulti-band characteristics, processes image ratio of band TM5/TM7, TM5/TM4and TM1/TM3, extracts oil and gas erosion information through spectral data, compiles the abnormalinformation charts of carbonation, clay mineralization, red fade, and get an conclusion that thenorth section of front range of Longmen Mountain zone are mainly carbonation, middle andsouth section are mainly clay mineralization and red fade information is weak caused byhydrocarbon leakage. Abnormal smudge area is along fault zone, especially in the cross areaof different direction fault. In the closed area of known oil and gas field, the informationsmudge is fragment or spot, and abnormal value is low. At the end, this thesis, based on Longmen Mountain’s structure division, segmentcharacters, deformation intensity, combined with oil and gas reserve conditions, cover layercondition and reserve layer characteristics, predicts that three fields as Wudu, An County,Feishuiduan in north section; two fields as Aojiachang, Juyuan in middle section, four fieldsas Wandanping, Guankou, Huaiyuan, Qionglai in south section have favorable explorationareas.The research conclusion of this thesis has important reference value to oil and gasleakage information extraction and prediction based on remote sensing technology, andbroadens the application fields and promotes the scientific progress of remote sensing surveytechnology.