论文部分内容阅读
基于现有地质、地球物理及地球化学资料,对新北油田新近系馆陶组石油地质条件进行综合研究,系统分析了已发现的油气藏成藏特征及其分布规律,提出了新北油田油气藏形成与分布的主控因素:新北油田油气藏类型主要为构造背景上的岩性油气藏,油气成藏与分布受构造和岩性双重因素控制。宏观上,沟梁相间的构造格局控制油气的整体运聚特征,河道砂体的发育使油气运聚路径复杂化。微观上,断鼻构造高带控制油气聚集成藏,断裂的发育制约着断鼻构造油气的富集;河道砂体影响断鼻构造内部油气的运移与富集,同一断鼻构造带上储集砂体的发育控制油气的富集分布。
Based on the existing geologic, geophysical and geochemical data, a comprehensive study on the petroleum geologic conditions of the Neogene Guantao Formation in the Xinbei Oilfield is carried out. The characteristics and distribution of the discovered reservoirs are systematically analyzed, and the formation of oil and gas reservoirs in the Xinbei Oilfield And distribution of the main controlling factors: Xinbei Oilfield reservoir types are mainly lithologic reservoirs on the tectonic setting, hydrocarbon accumulation and distribution are controlled by both structural and lithological factors. Macroscopically, the structural pattern of gully and interphase controls the overall migration and accumulation of oil and gas, and the development of channel sand body complicates the path of hydrocarbon migration and accumulation. Microscopically, the high zone of fault nose structure controls the accumulation of oil and gas, and the development of faults restricts the enrichment of oil and gas in the fault nose structure. The channel sand body affects the migration and enrichment of oil and gas inside the fault nose structure, The development of the set sand body controls the enrichment and distribution of oil and gas.