摘要
The hydrocarbon inclusions of Halahatang-Yingmaili area in Tarim basin could be divided into three stages by observation of microscopic UV fluorescence.The Stage-Ⅰis representative of a highly matured heavy oil charging,the Stage-Ⅱ of a matured medium hydrocarbon charging,and the Stage-Ⅲ of a highly matured light hydrocarbon charging.Based on previous researches of oil accumulation stages in northern Tarim basin,three stages of hydrocarbon inclusions are formed respectively as follows: Stage-Ⅰis that the heavy oil of the Cambrian in late Caledonian movement entered into the Halahatang area and found near Ha-601-1 and Ha-601-2 wells;Stage-Ⅱis that the crude oil of the Middle-Upper Ordovician in late Hercynian movement entered into the Halahatang-Yingmaili area,and Stage-Ⅲ is that the condensate-light oil modified by Yanshan-Himalayan movement entered into the Yingmai-2 area and the southern Halahatang.It is the three-stage hydrocarbon charging and modification that forms the oil-gas properties and features in Halahatang-Yingmaili area nowadays.