摘要
凹陷可分为长期发育型、早期发育型和晚期发育型三大类别。根据渤海湾盆地主要烃源层与石油窗或成熟油石油窗的相对位置关系 ,将长期发育型凹陷分为概念浅凹陷、概念中凹陷和概念深凹陷 ;根据后期演变特点 ,将早期发育型凹陷分为衰退型、抬升型和残留型 ;根据基底的构造背景 ,将晚期发育型凹陷分为凹陷分割型和凸起解体型。文章分析了不同凹陷类型 (亚类 )油气生成聚集特征和资源丰度差异 ,认为凹陷分类是油气勘探不断深入的必然 。
There are three types of sag: long?term development type, early development type and late development type. Long?term development type sag may be divided into conceptual shallow sag, conceptual middle sag and conceptual deep sag by the relative position between hydrocarbon source beds and oil window or oil window of mature oil. Early development type sag may be divided into waning type, uplift type and residual type sag according to the evolutional characteristics in late period. Late development type sag has sag segmentation type and arch breakup type. Generation and accumulation features of oil and gas and resource abundance difference in different types of sag (subtype) are analyzed in this paper. It shows that sag classification is the inevitable outcome of the continuous deepened exploration for oil and gas , especially at early stage of exploration.
出处
《油气地质与采收率》
CAS
CSCD
2001年第2期4-8,共5页
Petroleum Geology and Recovery Efficiency
关键词
凹陷类型
资源丰度
生烃差异
油气聚集
油气勘探
渤海湾盐地
type of sag；resource abundance；difference in hydrocarbon generation；accumulation features；oil-gas accumulation；exploration for oil and gas；Bohaiwan basin
