论文详情

西湖凹陷黄岩区地质演化及断层对油气运聚的影响

海洋石油

2003年 23卷第S1期

阅读：123

查看详情

Title

Geological Evolution of Huangyan Area in Xihu Sag and the Influence of Oil and Gas Migration in Fault Zone

作者

钟志洪张建培孙珍夏斌

Authors

ZHONG Zhi-hong ZHANG Jian-pei SUN Zhen XIA Bin

单位

中国科学院广州地球化学研究所, 广州 510640; 中海石油有限公司上海分公司, 上海 200030; 中国科学院南海海洋研究所, 广州 510301

Organization

Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; CNOOC China Ltd-Shanghai, Shanghai 200030, China; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China

摘要

西湖凹陷黄岩区的地质演化大致可以分为四个阶段:古新世-始新世伸展阶段,基底断层控制了地垒式断块构造发育;渐新世-中中新世坳陷沉降阶段,在渐新世早中期存在继承性断块活动;晚中新世构造反转阶段,形成大型反转背斜、北北东向和近东西向盖层断层;上新世-第四纪区域沉降阶段,东西向断层再次活动。晚中新世和上新世-第四纪的断层活动对花港组油气运聚有重要的影响。

Abstract

Geological evolution of Huangyan area can be divided into four stages:Extension stage from Paleocene to Eocene, basement fault controlled the fault blockactivatio n;Subsidence stage from Oligocene to Mid-Miocene, fault block activation only occurred in early-middle Oligocene;Structure reversion stage in Late Miocene, formed the huge reversal anticline, NNE and EW trend cover fault;Regional subsidence stage from Pliocene to Quaternary, the EW trending reactivated.Active faults in Late Miocene and Pliocene-Quaternary has st rongly impacted on the oil and gas migration and accumulation in Huagang formation.

关键词：

地质演化; 构造反转; 断层活动; 油气运移;

Keywords:

geological evolution; structure reverse; fault active; oil & gas migrate;

基金项目

中国科学院知识创新项目(编号Kzcx2-SW-117)和中科院广州地化所-南海海洋所边缘海地质重点实验室资助

DOI

https://doi.org/10.3969/j.issn.1008-2336.2003.z1.007