西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (5): 10-16.

• 地质勘探 • 上一篇    下一篇

徐家围子断陷油气运移体系及成藏模式分析

郭峰1,2,朱映康3,夏斌4,胡杨1,2   

  1. 1. 中国科学院广州地球化学研究所,广东广州5106402. 中国科学院研究生院,北京海淀1000493. 大庆油田勘探开发研究院,黑龙江,大庆1637124. 中山大学海洋学院,广东广州510275
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-10-01 发布日期:2012-10-01

Study on Migration System and Accumulation ModelXujiaweizi Depression

Guo Feng1,2, Zhu Yingkang3, Xia Bin4, Hu Yang1,2   

  1. 1. Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou,Guangdong 510640,China2. Graduate University,Chinese Academy of Sciences,Haidian,Beijing 100049,China3. Research Institute of Petroleum Exploration and Development,Daqing OilField Company,PetroChina,Daqing,Heilongjiang 163712,China4. School of Marine Science,Sun Yatsen University,Guangzhou,Guangdong 510275,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-10-01 Published:2012-10-01

摘要: 在对含油气组合特征和成藏要素配置关系综合分析基础上,根据断陷盆地发育特征以及天然气藏形成的主控
因素,重点分析了地震泵对油气纵向运移的影响,建立了该区油气藏成藏模式,本区发育的油气藏类型主要有构造气
藏,岩性气藏和由构造、岩性二者共同控制作用的构造—岩性气藏、地层超覆油气藏以及基岩风化壳油气藏。徐家围
子断陷两期构造运动进而形成了正反转构造,为油气提供了良好的构造圈闭及纵向疏导通道。沙河子组共经历了3 次
生排烃高峰,第一次由于强烈的构造活动,没有聚集成藏,后两次在其他成藏要素的配合下,最终得以聚集成藏。

关键词: 油气成藏, 油气运移, 地震泵, 正反转构造, 成藏期次, 徐家围子断陷

Abstract: Based on the comprehensive analysis of assemblage characteristics and the relationship of the reservoir-forming
elements configuration,the accumulation model was formed according to the characteristics of the fault basin and the main controlling
factors of the hydrocarbon reservoir formation,and the influence of seismic pump to the hydrocarbon vertical migration
is also studied. The main kinds of reservoirs here are structural gas reservoirs,lithologic structural gas reservoirs,stratigraphical
on-lap hydrocarbon reservoirs,bedrock weathered crust type oil-gas reservoirs and structural-lithologic gas reservoirs. The
seismic pump extracted the natural gas below the second member of Denglouku Formation up to the top of itself. The positive
inversion structures which were formed by the two-stage tectonic movements provided structural traps and the vertical channels
to divert for the oil and gas. There are three hydrocarbon generation peaks in Shahezi Formation. Because of the intensive
structural activities,the reservoirs were destroyed at the first time;but at the second and third time,with the cooperation of
other elements,the reservoirs were formed.

Key words: hydrocarbon accumulation, oil-gas migration, seismic pump, positive inversion structures, hydrocarbon accumulationperiod, Xujiaweizi Depression