...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine and Petroleum Geology >The origin and distribution of crude oil in Zhu III sub-basin, Pearl River Mouth Basin, China
【24h】

The origin and distribution of crude oil in Zhu III sub-basin, Pearl River Mouth Basin, China

机译：珠江口盆地朱三子盆地原油成因与分布

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The origin of thirteen major oil fields in Zhu III sub-basin, Pearl River Mouth Basin, was studied by using the results of Rock-Eval pyrolysis on 340 samples and biomarker analysis on 18 source rock samples and 33 oil samples. The two possible source rock intervals have different biomarker assemblages and were deposited in different environments. The Eocene Wenchang Formation (E(2)w, 49.5-35 Ma) is characterized by high hopane/sterane ratio (>37.84), high 4-methyl sterane index (0.28-1.06), low gammacerane index (<0.09), low extended tricyclic terpane ratio [ETR = (C-28 + C-29)/(C-28 + C-29 Ts), 0.13-0.20] and bicadinane/C30 hopane (<0.02), which was deposited in fresh-brackish water and dominated by algae. On the contrary, Oligocene Eenping Formation (E(3)e, 35-30 Ma) has high gammacerane index (>0.10), high bicadinane/C-30 hopane (up to 73.62) but low hopane/sterane ratio (<12.50), and it was deposited in relative saline water environment with significant high terrestrial plant debris input. Because of complex geologic settings, oils have different distribution. By using oil-source correlation analysis and hierarchical cluster analysis, two source-related oil groups were identified. Oils found in the Wenchang A depression and Yangjiang uplift, which are classified to oil group 1, were derived from E3e. Oils found in the Wenchang B depression and Shenhu uplift, which are classified to oil group 2, were derived from both E(2)w and E(3)e source rocks. But the Qionghai uplift received supply from both the Wenchang A and B depression. This distribution pattern is also proven by using a simple three-dimensional model called PathWay (TM). An explanation was put forward in this paper about the oils in Zhu III sub-basin and four potential petroleum accumulations were roughly predicted where no well drilled. (C) 2015 Elsevier Ltd. All rights reserved.
机译：利用岩石-Eval热解对340个样品的生物标志物分析结果，对18个烃源岩样品和33个油样进行了生物标志物分析，研究了珠江口盆地朱三子盆地13个主要油田的成因。两种可能的烃源岩层段具有不同的生物标志物组合，并且沉积在不同的环境中。始新世文昌组（E（2）w，49.5-35 Ma）的特征是高ster烷/甾烷比（> 37.84），高4-甲基甾烷指数（0.28-1.06），低γ-癸烷指数（<0.09），低扩展的三环戊烷比值[ETR =（C-28 + C-29）/（C-28 + C-29 Ts），0.13-0.20]和联吡啶/ C30 hop烷（<0.02），其沉积在淡咸水中并以藻类为主。相反，渐新世的恩平地层（E（3）e，35-30 Ma）具有较高的γ-ceraneane指数（> 0.10），较高的双cadinane / C-30 hop烷（高达73.62），但low烷/甾烷比低（<12.50） ，它被沉积在有大量陆地植物碎片的相对盐水环境中。由于复杂的地质环境，石油具有不同的分布。通过油源相关分析和层次聚类分析，确定了两个与源相关的油类。文昌A凹陷和阳江隆起中发现的油，属于1类油，来自E3e。在文昌B凹陷和神湖隆起中发现的油，属于2类油，来自E（2）w和E（3）e烃源岩。但是琼海隆起是从文昌A和B凹陷获得的。通过使用称为PathWay（TM）的简单三维模型也证明了这种分布模式。本文对朱三子盆地的石油提出了解释，并粗略预测了没有钻探好的四个潜在的石油成藏。 （C）2015 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号