Hot Fluid Activities and the Hydrocarbon Accumulation in the PY30-1 Structure of Panyu Low Uplift,
详细信息
- 责任者：Guo Xiaowen (Key Laboratory of Tectonics and Petroleum Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; He Sheng
- 刊名：Petroleum Exploration and Development
- 出版年：2010
- 卷期：37(3)
- 关键词：流体 ; fluids ; 油气藏形成 ; reservoir formation ; 珠江口盆地 ; Zhujiangkou Basin
- 页码：p.297-303
- 图表：7 illus., 22 refs.
- 分类号：1003
- issnNo：ISSN1000-0747
- isbnNo：CN11-2360/TE
摘要
///To clarify the process of hydrocarbon accumulation, hot fluid activities were confirmed in the PY30-1 structure of the Panyu Low Uplift, the origin of oil and gas and the evolution of overpressure were studied and the hydrocarbon accumulation was analyzed. Hot fluid activities occurred in the PY30-1 structure, as evidenced by vitrinite reflectance（Ro）, smectite-illite mineral abnormal transformation, and fluid inclusion homogenization temperatures. Migration of hydrocarbons happened with the hot fluids activities. The source rocks of the oil and gas in the PY30-1 structure are dominantly the Enping Formation lacustrine mudstones, secondarily the Wenchang Formation mudstones. The formation pressure evolution modeling reflects that there are 3 stages of overpressure release at 37～40 Ma, 31～33 Ma and 0～16 Ma under the influence of the second phase of the Zhuqiong movement, the Nanhai movement, and the Dongsha movement. The third stage of overpressure release is coincident with the hydrocarbon charging times. The hydrocarbon accumulation in the PY30-1 structure is that the hydrocarbon expulses from the source rocks because of overpressure releases in the Baiyun Depression under the influence of the Dongsha movement and then migrates vertically through the faults in diapirs.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |