The use of airborne gamma radiation in hydrocarbon exploration is widely known to define possible areas of microseepage. At this paper, the radiometric survey was applied to identify hydrocarbon anomalies over the South Portuguese Zone (SPZ) unconventional petroleum system. Spectral gamma-ray data were processed to thorium normalization method. Obtained results show positive anomalies mainly on the southwest sector of the SPZ, corroborating the data obtained through fluid geochemical analysis, revealing other several surface sweet spots for hydrocarbons emanations.

中文翻译：

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在葡萄牙南葡萄牙区域的非常规石油系统中，使用机载伽马辐射引起的烃异常

众所周知，在油气勘探中使用机载伽马辐射来定义可能的微渗漏区域。在本文中，辐射测量被用于识别南葡萄牙地区（SPZ）非常规石油系统上的碳氢化合物异常。光谱伽玛射线数据经to归一化处理。所获得的结果显示出正异常主要在SPZ的西南地区，证实了通过流体地球化学分析获得的数据，揭示了其他几个烃类散发的表层甜点。