新疆石油地质

›› 2014, Vol. 35 ›› Issue (1): 1-1.

• 论文 •    

柴北缘鄂博梁III号构造天然气成因类型及其成藏特征

汤国民1a，1b，罗群1c，庞雄奇1a，1b，张永庶2，郭继刚1a，1b，沈卫兵1a，1b，郭迎春1a，1b   

  1. (1. 中国石油大学a.油气资源与探测国家重点实验室;b.地球科学学院;c.非常规天然气研究院,北京102249;2.中国石油青海油田分公司勘探开发研究院,甘肃敦煌736202)
  • 出版日期:2019-01-01 发布日期:1905-07-10

Natural Gas Genetic Type and Accumulation Characteristics in Erboliang III Structure in North Margin of Qaidam Basin

TANG Guomin1a,1b, LUO Qun1c, PANG Xiongqi1a,1b, ZHANG Yongshu2, GUO Jigang1a,1b, SHEN Weibing1a,1b, GUO Yingchun1a,1b   

  1. (1. China University of Petroleum, a.State Key Laboratory of Petroleum Resources and Prospecting, b. College of Geosciences, c. Unconventional Gas Research Institute, China University of Petroleum, Beijing 102249, China; 2. Research Institute of Exploration and Development of Qinghai Oilfield Company, PetroChina, Dunhuang, Gansu 736200, China)
  • Online:2019-01-01 Published:1905-07-10

PDF

530

摘要： 利用现有井资料，通过碳、氦和氩等同位素分析，并结合烃源岩的演化、构造发育史和天然气成藏史分析，对柴达木盆地鄂博梁Ⅲ号构造天然气的成因类型和成藏特征进行了系统的研究。结果表明，鄂博梁Ⅲ号构造天然气为典型煤型气，气藏中甲烷和乙烷的反序现象是由成藏过程中混入不同成熟度的天然气所致。天然气主要源于深部过成熟的侏罗系烃源岩，断裂活动是控制天然气藏形成和演化的重要因素，提出了断裂—输导层输导源上成藏模式。

Abstract: Use the existing wells data, this paper systematically analyzed the natural gas genetic type and accumulation characteristics in the Erboliang III structure based on the analysis of the characteristics of Ca, He and Ar isotopes analysis, integrated with the hydrocarbon source rock evolution, structural development and natural gas accumulation history. The results show that the nature gas in Erboliang III structure is typically coal?related gas. The reverse sequence phenomenon of methane and ethane in the gas reservoir is resulted from mixed natural gas with different maturity in the process of gas accumulation. The natural gas mainly came from the deep over?matured Jurassic hydrocarbon source rocks. The faulting activities play an important role in controlling the formation and evolution of the nature gas reservoir. The natural gas accumulation model could be described as the up?source accumulation model for the fault?Transport layer type

中图分类号: