摘要
分析了华北探区隐蔽油气藏类型及其分布特征。指出了隐蔽油气藏围绕生油中心分布 ,并提出其分布的有利区带 :箕状凹陷的陡坡带分布砂、砾岩体油气藏 ;洼槽带分布扇三角洲前缘砂体和浊积岩油气藏 ;斜坡带分布地层 -岩性油气藏 ;大断层下降盘负地形分布河道砂岩性油气藏 ;隆起区古山梁是潜山油气藏分布的有利区带。列举了两个隐蔽油气藏的勘探实例。总结了隐蔽油气藏的研究方法。
The type and distribution characteristics of subtle reservoirs of exploration area in North China are analyzed. It is pointed out that subtle reservoirs distribute around oil generation center and following are the favorable belts: oilgas reservoirs of conglomerate body distribute at steep slope belt of halfgrabenlike depression, oilgas reservoirs of fan deltafront sand and turbidite developed at structural belt in sag, stratigraphiclithologic oilgas reservoirs developed at slope belt, channel sand lithologic oilgas reservoirs developed at negative landform of downthrow of major fault. Old mountain in uplift area is the favorable belt of buried hill oilgas reservoirs. Two exploration cases of the subtle reservoirs are listed. Research method for the subtle reservoirs is summarized finally.
出处
《油气地质与采收率》
CAS
CSCD
2002年第6期29-32,共4页
Petroleum Geology and Recovery Efficiency
关键词
隐蔽油气藏
油气勘探
油藏类型
分布特征
冀中幼陷
二连盆地
subtle reservoirs, oil reservoir type, distribution characteristics, Jizhong depression, Erlian basin
