摘要
勘探实践表明,江陵凹陷呈现出多层位立体含油的特点,油源均来源于古近系新沟嘴组。通过对深层白垩系和浅层的荆沙组、潜江组的它源油藏的解剖,发现砂体-砂体侧向输导和砂体-断层-砂体侧向垂向输导两种类型成藏模式,认为油源、油源断层和储层是它源油藏成藏的主控因素;在对比两种不同类型的它源油藏成藏特征的基础上,指出了勘探有利地区。
Exploration practice indicates Jiangling depression is of multi-layers tridimensional oil-bearing characteristic and from oil-source correlation,the source rocks are all from Xingouzui formation in Paleogene system.Through reservoir analysis of source rocks from other places in deep Cretaceous system and shallow Jinsha formation and Qianjiang formation,two hydrocarbon accumulation patterns have been discovered,namely lateral pathway of sand body-sand body and vertical pathway of sand body-fault-sand body.The results indicate the main controlling factors of hydrocarbon accumulation are oil source,faults and reservoirs.Based on hydrocarbon accumulation characteristics of two different types,the favorable exploration area have been pointed out.
出处
《石油地质与工程》
CAS
2015年第1期26-29,146,共5页
Petroleum Geology and Engineering
基金
中国石油化工股份有限公司重点科技攻关项目"江陵凹陷构造运动与油气富集规律研究"(P08041)
关键词
江陵凹陷
它源油藏
输导体系
成藏模式
成藏控制因素
Jiangling Depression
source rocks from other places
pathway system
accumulation model
reservoir accumulation controlling factors
