摘要
对东营凹陷南斜坡孔店组的勘探及认识程度非常低,尤其对油气成藏控制因素及油藏分布规律的认识尚不明确。通过对研究区成藏模式和油气藏分布规律的深入研究,认为南斜坡孔店组主要存在T型、S型和阶梯型3种油气运移模式,可形成断层、断层-岩性和地层超覆不整合3种模式的油气藏;油气藏类型主要包括构造油气藏、地层油气藏及构造-岩性油气藏3种。从生储盖组合特点、断层特征、圈闭形态与规模质量等方面研究了它们对油气成藏的控制作用,提出南斜坡孔店组油气成藏主要受构造背景、断层及圈闭特征3方面因素的控制,斜坡带鼻状构造的反向断块圈闭、砂泥比小于30%的地区成藏最为有利。
In the south slope of Dongying Depression,there are little exploration and knowledge of Kongdian Formation,especially the knowledge of control factors of hydrocarbon reservoir forming and hydrocarbon distribution rule. By analyzing the reservoir forming pattern and the distribution of hydrocarbon reservoirs of Kongdian Formation of south slope thoroughly,the author found three main hydrocarbon migration patterns of T-shape,S-shape and ladder type,and three pat,us of fault,fault-lithology and stra-tigraphic overlap unconformity hydrocarbon reservoir. There are three reservoir types of structure,stratigraphy and structure-li-thology. Control factors of source-reservoir-seal assemblage,fault features and the geometry,scale and quality of trap to hy-drocarbon accumulation were researched. The author proposed that the hydrocarbon accumulation was mainly dorminated by tectonic baclground,fault and trap features,and the most favourable areas are the reverse faulted block trap in the structural nose belts and the area whose sand-shale ratio is smaller than 30%.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2008年第6期43-45,共3页
Petroleum Geology and Recovery Efficiency
关键词
孔店组
成藏控制因素
断层
圈闭
东营凹陷南斜坡
Kongdian Formation,control factors to hydrocarbon reservoir forming,fault,trap,south slope of Dongying Depression
