西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

合浦盆地川江断块成藏条件与有利勘探方向

龚晓峰1,2,杨希冰3,朱继田3,张景茹1,2,李晓唐1,2   

  1. 1. 中国科学院边缘海地质重点实验室,广东广州510640
    2. 中国科学院大学,北京石景山100049
    3. 中海石油(中国)有限公司湛江分公司研究院,广东湛江524057
  • 出版日期:2014-02-01 发布日期:2014-02-01
  • 基金资助:

    国家自然科学基金(41176052);国家重点基础研究发展计划(2009CB219501)。

The Hydrocarbon Accumulation Conditions and Favorable Exploration
Direction of Chuanjiang Block of Hepu Basin

Gong Xiaofeng1,2, Yang Xibing3, Zhu Jitian3, Zhang Jingru1,2, Li Xiaotang1,2   

  1. 1. Key Laboratory of Marginal Sea Geology,Chinese Academy of Sciences,Guangzhou,Guangdong 510640,China
    2. University of Chinese Academy of Sciences,Shijingshan,Beijing 100049,China
    3. Zhanjiang Branch,China National Offshore Oil Corporation(China),Zhanjiang,Guangdong 524057,China
  • Online:2014-02-01 Published:2014-02-01

摘要:

合浦盆地乐2X 井钻遇地层均以灰白色、杂色及紫红色粗碎屑岩为主,暗色泥岩厚度较薄,仅始新统酒席坑组
上段较厚,但埋藏过浅,处于未成熟阶段。乐2X 井所在的川江断块圈闭基本落实,但是该圈闭基本不具备烃源条件,
又远离烃源的有效供给系统,导致该断块圈闭成为了“无源之水”、“无本之木”的空圈闭是钻探失利的主要原因。因
此,深入分析研究低熟烃源岩分布及烃源供给系统,在有效烃源供给系统内,综合预测与圈定有利的低熟油气及生物
气运聚富集区带,应是该盆地油气勘探攻关的关键所在。

关键词: 合浦盆地, 乐2X 井, 烃源的有效供给系统, 低熟油气, 生物气

Abstract:

Strata found in Well Le2X in Hepu Basin are mainly off-white,variegated and purple-red,and dark mudstone is
thinner than others,only Jiuxikeng group of the Pliocene is thicker,but its bury is not deep,and belongs to prematurity stage.
The Chuanjiang fault block structural trap of Well Le2X is basically clear,but the traps is without basic hydrocarbon source
conditions and is away from the hydrocarbon source supply system,resulting in the fault block traps becoming empty traps,
which is the main reason for the failure drilling. Therefore,in-depth analysis of the low mature source rocks and hydrocarbon
source supply system,comprehensive prediction and delineation of favorable migration and accumulation of enriched zone
of low mature oil and gas and bio-gas within effective hydrocarbon source supply system,should be the key to oil and gas
exploration research in Hepu Basin.

Key words: Hepu Basin, Well Le2X, effective hydrocarbon source supply system, low mature oil and gas, biogas