论文部分内容阅读
吐哈盆地台北凹陷鄯深三叠系油气藏成藏后的变化较大。对烃类包裹体、自生伊利石K Ar同位素测年、油砂荧光薄片等微观信息与烃源岩的热演化、储盖组合条件的形成、圈闭的形成与演化、油气运移时期等要素的宏观匹配关系进行多因素综合分析 ,确定该油气藏的成藏早期是中侏罗统七克台组沉积早期 ,充注正常成熟度油气 ;主要成藏期是上侏罗统齐古组沉积早期 ,充注较高成熟度油气 ;主要改造期是上侏罗统齐古组沉积期至喀拉扎组沉积早期 ,再次充注高成熟度的以气为主的烃类。图 4参 13 (王孝陵摘 )
The changes of deep Triassic reservoirs in the deep depression of the Turpan-Hami basin in Taibei Basin changed greatly after the accumulation. For hydrocarbon inclusions, K Ar isotopic dating of self-generated illite, microscopic information of fluvial sapphire and thermal evolution of source rocks, formation of reservoir-cap assemblage, formation and evolution of traps, hydrocarbon migration period and other factors The results show that the reservoir was formed in the early Jurassic Qijiantai Formation and filled with normal maturity hydrocarbon during the early hydrocarbon accumulation. The main hydrocarbon accumulation period is the sedimentation of the Upper Jurassic Qiqu Formation In the early stage, high maturity oil and gas were filled in. The main retrofitting period was the gas-dominated hydrocarbons with high maturity recharged from the sedimentary period of the Qiugu Formation to the Kelazhai formation in the early Jurassic. Figure 4 Senate 13 (Wang Xiaoling pick)