茨榆坨潜山油气藏源储关系研究

Study on the Relationship Between the Origin and Reservoir of Oil in Buried Mountains in Ciyutuo

通过对茨榆坨潜山烃源岩、储层及油气运移等成藏要素的研究,改变了潜山单一油源的认识,认为潜山被牛居-长滩、茨西、茨北三个生烃洼陷所围限,油气来源多样.构造作用、岩石类型、岩浆侵入等影响裂缝型储层储集性能.结合裂缝分析及岩性预测等结果,重构潜山内幕油气成藏模式,认为不同部位成藏优势不同,源储的合理配置是潜山油气成藏的主控因素,为深入研究及整体勘探部署奠定了基础.图4,表1,参11.

This paper has made a research on the reservoir-forming elements including source rocks, reservoirs, hydrocarbon migration and so on in buried mountains in Ciyutuo. A new understanding of reser- voir forming characteristics has been brought out. It is considered that the buried mountains are surroun- ded by three hydrocarbon-generation depressions which are respectively Niuju-changtan, Cixi and Cibei; and the source of oil and gas is diverse. The property of fracture reservoir is influenced by Tectonic action- ism, rock types, and magmatic intrusion, etc. Combining with fracture analysis and lithology prediction, re- searchers of this paper hold the idea that hydrocarbon accumulation superiority is different in different po- sition and proper configuration of the origin and reservoir is the key factor. The foundlings of this paper lay a foundation for further research and overall exploration in this area. 4figs. , l tab. , 11 refs