摘要
谭庄-沈丘凹陷位于周口坳陷中带,是在华北古生界台地基础上发育的中新生代沉积凹陷,面积2830km2,是目前周口坳陷最有利的含油气区,主要勘探层系为下白垩统。历经五十余年勘探,虽多口探井于下白垩统见到良好的油气显示,但一直未能取得实质性突破。通过对谭庄-沈丘凹陷典型见油气探井的解剖及综合评价,进一步明确了区内下白垩统烃源岩、盖层发育,生运聚配置关系良好,并指出了储层是制约该区油气勘探突破的关键因素,从而为谭庄-沈丘凹陷下步油气勘探指出了方向。
Tanzhuang-Shenqiu Depression located in the middle of Zhoukou Sag and was a sedimentary depression in Meso-Cenozoic based on the Paleozoic platform of the North China.Tanzhuang-Shenqiu depression was the best petrolifierous region of ZHoukou Sag and the lower Cretaceous was the main exploration area with an area of 2830km2.In Tanzhuang-Shenqiu Depression substantive breakthroughs was not achieved by the exploration of more than 50 years,better oil-gas shows were obtained in the lower Cretaceous exploration wells.The source rocks,sealing rocks and relation of generation,migration are better in the Tanzhuang-Shenqiu Depression by the analysis of oil-gas wells,and the reservoir is the key factor restricted the exploration breakthroughs,it provides the direction of oil exploration in Tanzhuang-Shenqiu depression.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2008年第05X期171-175,共5页
Journal of Oil and Gas Technology
基金
国土资源部油气资源战略选区项目(XQ-2007-02)
关键词
谭庄-沈丘凹陷
下白垩统
油气勘探
关键因素
Tanzhuang-Shenqiu Depression
lower Cretaceous
oil exploration
key factor
