摘要
通过含油气系统研究，总结出了早白垩世的成藏规律：阿尔善组和腾一段为主要烃源岩；扇中河道砂和三角洲前缘砂是主要储油层；不整合面和断层是油气运移的重要通道；中央隆起带是油气最有利的富集区；深洼槽控制油藏的分布；发育多种油藏类型并在凹陷的不同部位有规律的分布。在总结成藏规律、盆地模拟及勘探实践的基础上，对凹陷的优选、勘探程序提出了建议。
Erlian basin is one of the group of rift basins, Early Cretaceous, Inner Mongolia, which is a raised, remnant basin composed of small groups of extensional faulted sags. The more developed Lower Cretaceous is mainly a set of subwater apron deposit with more types of reservoirs and bad physical properties of oil reservoir.The reservoir forming regulars of Cretaceous, which are determined from the analysis of petroleum system, are as follows: Arshan Formation and Member I of Tengger Formation are main source rocks, the channel sandstones and delt front sanstones of the apron are main oil reservoirs; the unconformity surface and faults are the important pathways for hydrocarbon migration; the central uplift belt is the most favorable area for hydrocarbon accumulation; the deep sub sags control the distribution of oil reservoirs.On the basis of the basin simulation of the reservoir forming regulars and the exploration practices,the suggestions for the preferred exploration procedures and technological methods are proposed.
出处
《大庆石油学院学报》
EI
CAS
北大核心
1997年第3期11-15,共5页
Journal of Daqing Petroleum Institute
关键词
盆地
地质特征
生油岩
白垩统
成藏
Erlian Basin, geological nature, analysis of reservoir formation, reservoir type, distribution pattern, exploration suggestion
