【摘要】 羌塘盆地目前已经发现有190多处油气显示,这些油气显示主要集中在侏罗系和三叠系中,且主要形成自生自储式的生储盖组合,在盆地东部侏罗系中又新发现多处石膏盐丘沥青为主的油气显示。研究区内侏罗系生油岩生油条件研究表明,多套生油层能提供较充足的油气源;多期构造运动控制了油气的成藏保存条件,分析认为羌塘盆地东部侏罗系和三叠系复向斜带中受断裂影响小的低背斜带有望为进一步油气勘探提供有利区块。更多还原

【Abstract】 More than 190 points of oil and gas show have been documented in the Qiangtang Basin,most of them are found in Jurassic and Triassic strata, and these strata act as both source beds and reservoir on the whole. Fieldwork in the eastern part of Qiangtang Basin during the past two years found more such show. There is evidence that the generating and reserving conditions of oil and gas were under control of polyphase tectonic movements. Experimental analysis reveals that the source rocks for oil and gas within the Jurassic strata have great oil-and-gas generating and reserving potential, especially in the anticline area.更多还原