成都理工大学学报（自然科学版）Issue(5)：521-529,9.DOI:10.3969/j.issn.1671-9727.2015.05.02
南美 Llanos 盆地中生代－新生代构造沉积演化及石油地质特征
Mesozoic-Cenozoic tectonic and sedimentary evolution and petroleum geological features in Llanos Basin,South America
冯方 1傅恒 2宋亮 3郑丽辉 1王晓杰1
作者信息
- 1. 中国石化集团 国际石油勘探开发有限公司，北京 100083
- 2. 成都理工大学 能源学院，成都 610059
- 3. 中国石油 阿姆河天然气勘探开发有限公司，北京 100101
- 折叠
摘要
Abstract
Based on the tectonic and sedimentary evolution, hydrocarbon plays condition, trap characteristics and oil fields distribution,etc.,the paper illustrates the geological features and hydrocarbon accumulation patterns in Llanos Basin,South America,and points out the exploration prospect areas.Llanos Basin is a composite basin after the Mesozoic back-arc rift and the Cenozoic foreland basining.The main source rock is the Cretaceous Gacheta shale.Several sets of reservoir rocks develop in Cretaceous, Paleogene and Neogene sandstones and seven reservoir-cap sets containing oil and gas are confirmed.The hydrocarbon migration and accumulation features are the long distance migration,the mixed-source charge,continuous the three-dimensional transporting of breaking sands,and the stepped catching integrated reservoirs of near and far hydrocarbon stoves. The traps close to the hydrocarbon stove have the priority of trapping to form medium-large structures fields in the medium deep formations.The traps far from the hydrocarbon stove succeed trapping and form small complex structures fields in shallow formations. A few but large scale overthrust structural traps develop in the west of the basin.They can form large fields.This area is a target area for exploring structural traps.In the center and the east of the basin,there develop lithologic-structural traps,lithologic traps and hydrodynamic traps.The traps have a high number and multiple types but small scales.They can only form small shallow oil and gas fields and become a target area for combination traps exploration.关键词
Llanos盆地/前陆盆地/构造沉积演化/石油地质/富集规律Key words
Llanos Basin/foreland basin/tectonic and sedimentary evolution/petroleum geology/accumulation regularity分类
能源科技引用本文复制引用
冯方,傅恒,宋亮,郑丽辉,王晓杰..南美 Llanos 盆地中生代－新生代构造沉积演化及石油地质特征[J].成都理工大学学报（自然科学版）,2015,(5):521-529,9.
