新疆吉木萨尔西大龙口地区航空高光谱油气探测  

Airborne hyperspectral hydrocarbon exploration in the west Dalongkou area,Jimusar,Xinjiang

作　　者：童勤龙[1] 刘德长[1] 张川[1] Tong Qinlong Liu Dechang Zhang Chuan(CNNC Beijing Research Institute of Uranium Geology, National Key Laboratory of Remote Sensing and Image Analysis Technology, Beijing 100029, China)

机构地区：[1]中核集团核工业北京地质研究院遥感信息与图像分析技术国家级重点实验室,北京100029

出　　处：《石油学报》2017年第4期425-435,共11页Acta Petrolei Sinica

基　　金：中国地质调查局油气资源调查中心"准东-三塘湖-吐哈地区油气资源选区调查"(1211302108019-1)赞助

摘　　要：长期的油气渗漏会引起地表岩层或土壤发生烃类及其他蚀变异常,这些异常独特的反射光谱特征为利用遥感技术提取油气渗漏相关信息提供了依据。利用航空高光谱SASI数据,结合野外实测光谱,提取新疆吉木萨尔西大龙口地区油气渗漏引起的烃及高岭土化信息。通过研究区遥感地质解译,发现烃信息主要分布在二叠系芦草沟组、梧桐沟组和侏罗系八道湾组内,高岭土化主要集中于三叠系小泉沟群和侏罗系八道湾组内,不整合面和次级断裂是油气渗漏的主要通道,饱和烃质谱色谱分析结果表明油源来自深部的二叠系芦草沟组。根据区域构造演化和地震剖面资料,油气渗漏可能开始于印支晚期,在喜马拉雅期达到顶峰,如今地表形成的油气渗漏主要为喜马拉雅期构造运动的产物,研究区西部油气渗漏烃异常的深部以及阜康—吉木萨尔逆冲断层下盘是下一步油气勘查值得重视的目标区。Long-term oil-gas seepage can induce hydrocarbon and other alteration anomaly in surface rocks or soil, and particular spectra characteristics of those anomalies provide a basis for the oil-gas information extraction by remote sensing technology. Combined with measured spectra in field, the information of hydrocarbonylation and kaolinization caused by oil-gas seepage in the West Dal- ongkou area, J imsar, Xinjiang was obtained using airborne hyperspectral SASI dada. Through remote sensing geological interpreta- tion, it has been found that hydrocarbonylation information is mainly distributed in the Permian Lucaogou Formation, Wutonggou Formation and Jurassic Badaowan Formation, while kaolinization information is mainly distributed in the Triassic Xiaoquangou Group and Jurassic Badaowan Formation. The plane of unconformity and secondary faults are the main channels for oil-gas seepage, and saturated hydrocarbon mass chromatographic analysis results indicate that oil sources come from the deep Permian Lucaogou Forma tion. According to regional tectonic evolution and seismic profile materials, oil-gas seepage may start from the late Indosinian, and got a peak in the Himalayan period; the present surface oil-gas seepage is mainly the product of Himalayan tectonic movement. The deep locations with hydrocarbon anomaly due to oil-gas seepage in the western study area and the footwall of Fukang-Jimusar thrust fault are the targets worthy of attention for further hydrocarbon exploration.

关 键 词：航空高光谱 遥感 油气渗漏 蚀变 吉木萨尔 

分 类 号：TE19[石油与天然气工程—油气勘探]