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从柴达木盆地北缘天然气地球化学特征和成熟度研究入手,通过典型气藏天然气形成时烃源岩的成熟度分析,结合研究区源岩热演化史和流体包裹体资料,发现研究区天然气藏普遍具有晚期生烃、晚期成藏的特点,提出晚期成藏的新认识,指出受晚喜马拉雅期新构造运动控制的晚期构造是柴北缘天然气勘探的有利目标,能有效指导鄂博梁晚期构造带的天然气勘探,对柴达木盆地晚期构造的油气勘探具有重要借鉴意义。
Based on the study of geochemical characteristics and maturity of natural gas in the north margin of the Qaidam Basin, by analyzing the maturity of source rocks during gas formation of typical gas reservoirs and combining with the thermal evolution history of source rocks and fluid inclusions in the study area, it is found that the natural gas The reservoirs generally have features of late hydrocarbon generation and late accumulation, and put forward new understanding of late accumulation. It is pointed out that the late tectonism controlled by the late Himalayan neotectonic movement is an advantageous target for natural gas exploration in northern Qaidam and can effectively guide the late Ebolang tectonic belt Of the natural gas exploration, the Qaidam Basin late tectonic oil and gas exploration has important reference.