下扬子区下古生界油气地质条件评价

EVALUATION ON THE GEOLOGIC CONDITIONS OF THE LOWER PALEOZOIC HYDROCARBON IN LOWER YANGTZE AREA

1.
East China Bureau of Petroleum, SINOPEC, Nanjing, Jiangsu 210011, China
2. Geological Research Institute, East China Bureau of Petroleum, SINOPEC, Yangzhou, Jiangsu 225002, China

摘要: 下扬子区下古生界烃源岩发育,有机质热演化程度高,储盖条件良好,具有形成大型天然气藏的有利地质条件.虽然印支运动对下扬子海盆沉积实体构造改造严重,对油气藏有一定程度的破坏作用,但是由于下志留统高家边组巨厚泥岩的封闭覆盖,下古生界油气藏的保存条件优越,从而在油气勘探领域的评价方面,下古生界明显优于上古生界及海相中生界.
- 油气地质评价 /
- 下古生界 /
- 下扬子区
Abstract: The Lower Paleozoic in Lower Yangtze area which has developed hydrocarbon source rocks,organic matter with high thermal evolutionary degree and good reservoir-cap conditions possesses favorable geologic conditions to form large scale natural gas pools.The Indosinian movement greatly reformed the tectonics of the Lower Yangtze sea basin sedimentary body,and has some degree of katogene on oil and gas pools.But the Lower Paleozoic oil and gas pools have advantageous preservation conditions because of the sealing and covering of very thick mudstone in the Gaojiabian Formation of the Lower Silurian.Therefore,as for the evaluation of hydrocarbon exploration domain,the Lower Paleozoic is obviously superior to the Upper Paleozoic and the marine Paleozoic.
- hydrocarbon geologic evaluation /
- the Lower Paleozoic /
- Lower Yangtze area

[1]	李晋超,马永生,张大江,等.中国海相油气勘探若干重大科学问题[J].石油勘探与开发,1998,25(5):1-2.
[2]	费富安.下扬子区下古生界(包括震旦系)生油碉中IV型干酪根的地化特征及其意义[A].油气勘探新理论方法新技术报告会论文集[C].北京:海洋出版社,1989.47-52.
[3]	郭念发,俞凯.下扬子地区海相储集岩特征及含油气性[J].勘探家(石油与天然气),1998,3(4):21-25.
[4]	郭念发,尤孝忠,刘德法.下扬子区古生界油气地质条件及勘探选区[J].石油勘探与开发,1998,25(1):4-7.
[5]	李道琪,孟运舒,卫自立,等.下扬子区基本地质特征[A].中国南方油气勘查新领域探索论文集(第3辑)[C].北京:地质出版社,1988.34-42.