大庆石油地质与开发2017，Vol.36Issue(4)：33-39,7.DOI:10.19597/J.ISSN.1000-3754.201701054
TN凹陷不整合结构及其油气地质意义
UNCONFORMITY STRUCTURES AND THEIR SIGNIFICANCES IN PETROLEUM GEOLOGY FOR TN SAG
摘要
Abstract
TN Sag has experienced Jurassic to Early Cretaceous rift basin during the process of its development,the unconformity interfaces are commonly developed.By means of the well and seismic combination,12 unconformity interfaces were identified,fourmain types of the unconformity are shown as follows:overlapping,truncated,parallel and foldunconformities.Through the research on the unconformity structures,the closing or transferringactions of the unconformity interfaces were made clear,when the unconformities well matched with their structures andfaults,the favorable traps can be formed.Four principal types of oil reservoir are developed when associated with the unconformities,they are respectively multi-strata superposed reverse ridge fault block reservoir,subaqueous fan-body structural-lithologic reservoir,sandbodypinchout reservoir and buried hill reservoir.Integrated with the practice of the oilfield production,the characteristics of different types of the reservoir were analyzed,thus the distribution laws of different reservoirs were ensured for the sag.All the achievements have provided a certain guiding significance for the next step exploration.关键词
不整合面/结构类型/不整合油藏/地质意义Key words
unconformity surface/structural type/unconformity oil reservoir/geological significance分类
能源科技引用本文复制引用
苏磊..TN凹陷不整合结构及其油气地质意义[J].大庆石油地质与开发,2017,36(4):33-39,7.基金项目
国家自然科学基金“致密砂岩微-纳米孔喉体系中油赋存特征和可动性研究”(41672116). （41672116）
