首页    期刊浏览 2024年11月26日 星期二
登录注册

文章基本信息

  • 标题:Geochemical Evaluation for the Hydrocarbon Potential of Source Rocks in the Anza Basin
  • 本地全文:下载
  • 作者:Bett Gilbert ; Daniel Olago ; Daniel Ichangi
  • 期刊名称:International Journal of Geosciences
  • 印刷版ISSN:2156-8359
  • 电子版ISSN:2156-8367
  • 出版年度:2021
  • 卷号:12
  • 期号:6
  • 页码:572-583
  • DOI:10.4236/ijg.2021.126032
  • 语种:English
  • 出版社:Scientific Research Pub
  • 摘要:Anza basin is located in the extensional arm of the central African rift system in the North-Eastern part of Kenya. Cretaceous sedimentary rocks were sampled from the four wells namely, Chalbi-3, Sirius-1, Ndovu-1 and Kaisut-1. Anza basin occurs on a fault block within a Paleocene-Cretaceous rift basin. The methodological approach used for the evaluation of source rocks included petrophysical and geochemical methods to ascertain their potential. Well sections with a higher shale-volume ratio were sampled for geochemical screening to determine the organic richness and thermal maturity of potential source rocks, respectively. Source rock with organic richness ≥ 0.5% were evaluated further for their petroleum potential using Rock-Eval pyrolysis to determine their thermal maturity, organo-facies and in-situ generated hydrocarbons present in sedimentary facies. The geochemical evaluation of rock samples from the drilled wells’ sections of Chalbi-3 and Sirius-1 confirmed both oil and gas potential. Gas Chromatography and Mass Spectrometry (GCMS) were used to characterize the biomarker signatures and oil-oil correlation of Sirius-1 samples. A predictive model was developed to integrate the petrophysical and geochemical data to reveal hydrocarbons’ potential in the Anza basin.
  • 关键词:Geochemical EvaluationKerogenMaturityPetroleum PotentialPredictive Model
国家哲学社会科学文献中心版权所有