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根据藏北措勤盆地的沉积、构造、地球化学特点,分析了不同烃源岩的油气生成特征,综合评价认为:沉积、构造的演化控制了烃源岩的发育与空间展布。上、下古生界主要为碳酸盐烃源岩,热演化程度高,以生气为主;三叠系、侏罗系烃源岩不发育,生烃潜力有限;下白垩统发育碳酸盐烃源岩和泥质烃源岩,热演化程度适中,为措勤盆地的主力烃源岩。生烃潜力较大。措勤盆地东北部为最有利的油气勘探远景区。
According to the sedimentary, tectonic and geochemical characteristics of the Cuoqin basin in northern Tibet, characteristics of oil and gas generation from different source rocks are analyzed. The comprehensive evaluation shows that sedimentary and tectonic evolution control the development and spatial distribution of source rocks. The upper and lower Paleozoic are mainly carbonate source rocks with high thermal evolution and mainly gas generation. Triassic and Jurassic source rocks are not developed and hydrocarbon generation potential is limited. Lower Cretaceous carbonate Source rocks and muddy source rocks, moderate thermal evolution, is the main source rock in the basin. Hydrocarbon production potential. The northeast part of Cuoqin Basin is the most favorable prospect for oil and gas exploration.