新疆石油地质

新疆石油地质 ›› 1998, Vol. 19 ›› Issue (4): 278-280.

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准噶尔盆地烃源岩生烃模型

马哲, 宁淑红, 姜莉   

  1. 新疆石油管理局勘探开发研究院 克拉玛依 834000
  • 收稿日期:1998-02-09 出版日期:1998-08-01 发布日期:2020-09-19
  • 作者简介:马哲:高级工程师 地球化学

HYDROCARBON GENERATION MODEL OF SOURCE ROCK IN JUNGGAR BASIN

Ma Zhe, Ning Shuhong, Jiang Li   

  1. Research Institute of Exploration and Development, Xinjiang Petroleum Administration Bureau, Karamay 834000
  • Received:1998-02-09 Online:1998-08-01 Published:2020-09-19
  • About author:Ma Zhe, Senior Engineer, Geochemistry

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摘要： 利用高压釜加水模拟的实验方法建立了准噶尔盆地各主要生烃层系的生烃模式, 并利用动力学参数建立了盆地主要生烃凹陷(玛湖凹陷和吉木萨尔凹陷)的干酪根生烃模型。准噶尔盆地烃源岩当Ro 为1.0 %~1.2 %时为生油高峰期, 当Ro 大于1.0 %时开始大量生气;二叠系烃源岩生油、生气能力较强, 其他层系烃源岩生油能力弱, 但生气能力较强;玛湖凹陷内的上二叠统风城组烃源岩当埋深到3 700 m左右时进入成熟窗口, 吉木萨尔凹陷内的上二叠统芦草沟组烃源岩当埋深到3 250 m左右时进入成熟窗口。

关键词: 准噶尔盆地, 生油层, 生油指标, 生气指标, 生油坳陷, 生油模型

Abstract: Hydrocarbon generation models of each major source bed in Junggar basin were established with hydropyrolysis method, and hydrocarbon generation models of kerogen in Mahu and Jimsar sags with dynamics parameters. Oil generation of source rock in Junggar basin peaks at Ro =1.0%~ 1.2 %.At Ro >1.0%, gas is generated in a large amount. The source rock in Permian has strong oil and gas potential, and other source rocks have strong gas potential but weak oil potential, the oil generation threshold of source rock in Fengcheng formation(Upper Permian)in Mahu sag is at the depth of 3 700m, and the oil generation threshold of source rock in Lucaogou formation(Upper Permian)in Jimsar sag at the depth of 3 250 m.

Key words: Junggar basin, Source bed, Oil-generation index, Gas-generation index, Source depression, Oil-generation model