【摘 要】
：
奈曼凹陷共发育下白垩统沙海组、九佛堂组上段、九佛堂组下段三套烃源岩,其中沙海组烃源岩有机质丰度较高,干酪根以Ⅰ型、Ⅱ1型为主,处于未熟–低熟阶段,综合评价为中等烃源
【机 构】
：
中国石油辽河油田分公司勘探开发研究院
【基金项目】
：
中国石油天然气集团公司重大科技专项“辽河油田千万吨稳产关键技术研究与应用”（2017E–1601）.
论文部分内容阅读
奈曼凹陷共发育下白垩统沙海组、九佛堂组上段、九佛堂组下段三套烃源岩,其中沙海组烃源岩有机质丰度较高,干酪根以Ⅰ型、Ⅱ1型为主,处于未熟–低熟阶段,综合评价为中等烃源岩.九佛堂组上段烃源岩生油能力较差;九佛堂组下段烃源岩有机质丰度高,干酪根以Ⅰ-Ⅱ1型为主,处于成熟阶段,综合评价为好烃源岩,是奈曼凹陷主力烃源岩层.该烃源岩发育于较强还原环境,有机质母质以藻类为主、高等植物为辅的混源类型.
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