摘要
通过对下扬子地区厚逾万米的以碳酸盐岩为主的海相地层的生、储、盖等条件分析,认为其具备形成大中型油气田的有利地质条件,但在中新生代该区海相地层广泛遭受了多期次不同形式不同强度的改造,大部分地区改造强烈,部分地区已被剥蚀殆尽,这对油气聚集成藏的条件有明显影响和破坏。研究认为在后期改造相对较弱的地区如南京拗陷等地,仍然有良好的油气勘探前景。
The lower Yangtze area owns marine sedimentary strata up to ten thousand meters with major carbonate and source rock system in great thickness.Therefore,it has the favorable geological conditions for the development of largemedium oilfields.The marine sedimentary construction has been commonly reformed with various timestage and style during Mesozoic and Cenozoic period.In most regions,the reformation is very strong,while in several regions,it is so strong that the marine strata has been eroded completel...
出处
《西北大学学报（自然科学版）》
CAS
CSCD
北大核心
2002年第5期526-530,共5页
Journal of Northwest University（Natural Science Edition）
基金
国家计委
经委"九五"重点科研攻关项目(D20-1-4)
关键词
下扬子地区
海相地层
后期改造
改造盆地
油气聚集成藏
lower Yangtze area
marine strata
later reformation
reformed basin
oil and gas accumulation
