标题:
青南雁石坪-温泉兵站地区侏罗系烃源岩生烃潜力研究The Hydrocarbon Potential of Jurassic Source Rocks in Yanshiping-Wenquanbingzhan Area in the South of Qinghai Province
作者:
金广春, 旷红伟, 宋换新
关键字:
烃源岩, 侏罗系, 生烃潜力, 雁石坪, 温泉兵站, 羌塘盆地Source Rock, Jurassic System, Hydrocarbon Potential, Yanshiping, Wenquanbingzhan, Qiangtang Basin
期刊名称:
《Journal of Oil and Gas Technology》, Vol.39 No.2, 2017-04-15
摘要:
雁石坪-温泉兵站地区侏罗系烃源岩研究程度低。在对侏罗系烃源岩样品进行系统的地球化学分析的基础上，对其生烃潜力进行了研究。结果表明：研究区侏罗系烃暗色碳酸盐岩和泥岩发育，其中夏里组泥岩和雀莫错组灰岩有机质丰度整体达到了有效烃源岩标准；侏罗系各组烃源岩中有机质类型为Ⅱ2-Ⅲ型，为偏腐殖型有机质；烃源岩的热演化程度主体处于高成熟-过成熟热演化阶段。认为侏罗系烃源岩能够为研究区天然气水合物成藏提供潜在的气源条件。
The research degree of Jurassic source rocks was low in Yanshiping-Wenquanbingzhan Area. On the basis of the geochemical analysis of the Jurassic source rocks systematically, the hydrocarbon potential there was researched. The results show that the dark source rocks, including mudstone and limestone were developed well in Jurassic System. The abundance of the organic matter in the mudstone of J2x and in the limestone of J2q is high and reaches the standard of the effective source rocks. The organic matter is II2-III with a bias of humus type in each formation of the Jurassic System. The thermal evolution degree of the Jurassic source rocks is mainly at the high-over mature stage. It is considered that the Jurassic source rocks can provide potential gas supply conditions for the accumulation of the natural gas hydrate in the research area.