中国石油勘探 ›› 2019, Vol. 24 ›› Issue (4): 431-438.DOI: 10.3969/j.issn.1672-7703.2019.04.003

• 勘探案例 • 上一篇    下一篇

黄骅坳陷乌马营潜山二叠系砂岩凝析气藏的发现及其地质意义

周立宏1, ,王鑫1,2 ,付立新1, ,吴雪松1, ,李宏军1, ,楼达1, ,段润梅1, ,崔宇1, ,王辉1,   

  1. 1 中国石油大港油田公司;2 中国石油大学(华东)
  • 出版日期:2019-07-15 发布日期:2019-07-15
  • 作者简介:周立宏(1968-),男,河北故城人,博士,2006 年毕业于中国科学院地质与地球物理研究所,教授级高级工程师,主要 从事油气勘探研究与生产管理工作。地址:天津市滨海新区大港油田公司机关,邮政编码:300280。E-mail: zhoulh@petrochina.com.cn
  • 基金资助:
    中国石油天然气股份有限公司重大科技专项“大港油区效益增储稳产关键技术研究与应用”(2018E-11-02)。

Discovery and geological significance of the Permian sandstone condensate gas reservoir in Wumaying buried hill, Huanghua depression

Zhou Lihong1,, Wang Xin1,2, Fu Lixin1,, Wu Xuesong1,, Li Hongjun1,, Lou Da1,, Duan Runmei1,, Cui Yu1,, Wang Hui1,,   

  1. 1 PetroChina Dagang Oilfield Company; 2 China University of Petroleum (East China)
  • Online:2019-07-15 Published:2019-07-15
  • Supported by:
     

摘要: 黄骅坳陷乌马营潜山二叠系砂岩获高产油气流, 展示出上古生界良好的勘探前景。针对黄骅坳陷上古生 界煤系烃源岩、储集层系、圈闭条件、充注特征等方面进行深入分析,明确了二叠系砂岩凝析气藏的优势成藏条件及 其地质意义。研究认为黄骅坳陷石炭系—二叠系煤系地层稳定分布,生烃潜力大,热演化程度高,提供了充足的油气 来源;二叠系下石盒子组发育巨厚的砂岩储层,遭受埋深后依然可保持较高的孔隙度,是油气富集层系;逆冲推覆构 造形成了多个大型背斜、断鼻构造,提供了有利的成藏空间;乌马营潜山新构造运动时期断层活动趋于停止,晚期油 气大规模充注有利于油气藏保存。黄骅坳陷二叠系砂岩凝析气藏的发现,证实了石炭系—二叠系煤系烃源岩巨大的生 烃潜力,指明了二叠系下石盒子组这一重点勘探层系,将古生界砂岩储层的有效勘探深度拓深至5000m,大大拓展 了潜山内幕油气资源的勘探空间。

 

关键词: 凝析气藏, 成藏条件, 地质意义, 二叠系, 黄骅坳陷

Abstract: The Permian sandstone in the Wumaying buried hill in Huanghua depression showed high-yield oil and gas flows and good exploration prospects in the Upper Paleozoic. According to the analysis to the characteristics of the coal-bearing source rocks, reservoirs, traps and hydrocarbon accumulation in the Upper Paleozoic formations, dominant reservoir conditions and the geological significance of the Permian sandstone condensate gas reservoir were clarified in Huanghua depression. Our study shows that: (1) the Carboniferous-Permian coal-bearing strata have stable distribution, large hydrocarbon generating potentials and highly thermal evolution, which provide sufficient hydrocarbon sources; (2) the thick Permian lower Shihezi Formation sandstone reservoirs remain higher porosity even after deeply buried, which provide good space for accumulating hydrocarbon; (3) the thrust nappe structures include several large anticlines and faulted noses, which are favorable space for storing hydrocarbon; (4) the faulting activities tended to stop when the neotectonic movement took place in the Wumaying buried hill, so it is conducive to preserving hydrocarbon reservoirs. The discovery of the Permian sandstone condensate gas reservoir confirmed the huge hydrocarbon generating potential of the Carboniferous-Permian coal-bearing source rocks, pointed out key exploration targets in the Permian lower Shihezi Formation, extended effective exploration to the Paleozoic sandstone reservoir at 5000 m, and greatly expanded the exploration scope inside the buried hill in the Huanghua depression.

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