植被覆盖地区的高光谱油气勘探技术研究现状

CURRENT STATUS OF HYPERSPECTRAL TECHNIQUES FOR OIL AND GAS EXPLORATION IN VEGETATION COVERING AREA

高光谱遥感油气勘探技术利用油气微渗漏所致的地表蚀变矿物异常和地植物异常在光谱上的异常表现提取油气微渗漏信息,是油气勘探的辅助手段。针对高光谱遥感油气勘探技术在植被覆盖区应用中存在的植被遮挡地表真实情况的问题开展研究,总结相关领域的国内外研究现状,指出其存在的问题,提出了与植被反射率相关的指数作为油气微渗漏的指示标志,确定了适用于植被覆盖区的高光谱遥感油气微渗漏信息大面积普查的工作流程,研究成果可为建立更加广泛、适用的高光谱遥感油气勘探模式提供新的参考依据。

The technology of oil-gas exploration using hyperspectral remote sensing is based on the spectrum anomalies of alteration minerals and plants to extract the information of hydrocarbon microseepage,which is an auxiliary means of oil and gas exploration. But in the study area covered by vegetation,the real situation of the surface is occluded by the existence of vegetation,which will affect the application efficiency to the technology of oil-gas exploration using hyperspectral remote sensing. In order to explore the solution of this block,the real situation of the related domestic and foreign researches is summarized and the existing problems are pointed out. The vegetation reflectance indices which can be used as the indication sign of hydrocarbon microseepage are summed up, and the work flow which can apply to the large area census of hydrocarbon microseepage using hyperspectral remote sensing is put forwarded. The research result of this paper provide a new reference for the establishment of the more extensive and applicable work model of oil and gas exploration using hyperspectral remote sensing.