...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Petroleum Science & Engineering >Geochemical characteristics, depositional environment and hydrocarbon generation modeling of the upper cretaceous Pakawau group in Taranaki Basin, New Zealand
【24h】

Geochemical characteristics, depositional environment and hydrocarbon generation modeling of the upper cretaceous Pakawau group in Taranaki Basin, New Zealand

机译：新西兰塔拉纳基盆地上白垩湾群体的地球化学特征，沉积环境和烃源型建模

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 oil, gas and condensate province of the Upper Cretaceous to Cenozoic Taranaki Basin is very important as it has become the sole commercially-producing sedimentary basin in New Zealand. An understanding of burial/thermal geo-histories of Taranaki Basin is essential for modeling hydrocarbon generation. In the present study, data from subsurface samples from selected wells have been analyzed and interpreted for characterizing source rock of the Pakawau Group along with thermal geohistory of the basin. The Upper Cretaceous Pakawau Group, made up of Rakopi (87-75 Ma) and North Cape (75-65 Ma) formations, is the eldest and most prolific organic rich hydrocarbon source rock in the basin. Their lithologies vary between carbonaceous mudstone and coal from alluvial to coastal plain depositional environments with marginal marine influence. Most samples that are interpreted contain kerogen Types II and II-III, with few samples of Type-III kerogen. This is validated by the biomarkers results, where the assessed data shows that the organic source ranges from terrestrial to marine origin. The Pakawau Group source is immature to mature, as reflected by the distribution of vitrinite reflectance (%Ro), pyrolysis T-max from pyrolysis data and biomarkers data. Vitrinite reflectance distribution shows that the Rakopi Formation is mostly within the mature oil window for hydrocarbon generation with values ranging generally between 0.5% and 0.95% Ro. Using two selected wells, the models have been interpreted to generate hydrocarbons from the Pakawau Group between Upper Paleocene and Middle Eocene. Interpretations of the burial models confirm that hydrocarbons of Pakawau Group has not yet attained peak generation and is still being expelled from the source rock to-date.
机译：上层白垩纪的石油，天然气和冷凝水省塔拉纳崎盆地的石油，气体和冷凝物省非常重要，因为它已成为新西兰的唯一商业产物沉积盆地。理解塔拉纳基盆地的埋地/热地理历史对碳氢化合物产生至关重要。在本研究中，已经分析了来自所选井的地下样本的数据，并解释了Pakawau集团的源岩以及盆地的热地质岩体。由Rakopi（87-75 mA）和北披港（75-65 mA）组成的上白垩纪小组是盆地中最佳和最丰富的有机丰富的碳氢化合物源岩。他们的岩性在碳质泥岩和煤炭之间变化，来自冲积到沿海普通沉积环境，具有边际海洋影响。大多数被解释的样品含有Kerogen类型II和II-III，少量-III型样品-III Kerogen。这是由生物标志物的结果验证，评估数据显示有机源范围从陆地到海源。帕瓦怀群源不成熟，成熟，如vitriinite反射率（％RO）的分布，从热解数据和生物标志物数据中的热解T-Max。 Vitriinite反射率分布表明，Rakopi形成主要是在成熟的油窗口内，用于烃的生成通常在0.5％和0.95％RO之间。使用两个所选井，模型被解释为从古典和中期群岛之间的巴瓦群生成碳氢化合物。埋葬模型的解释证实，朴瓦集团的碳氢化合物尚未达到峰代生成，并且仍被驱逐出源岩迄今为​​止。

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