新疆石油地质

新疆石油地质 ›› 2000, Vol. 21 ›› Issue (4): 297-300.

• • 上一篇    下一篇

吐哈盆地混源型油气藏的形成及地球化学特征

李巧梅   

  1. 中国石油吐哈油田公司勘探开发研究院 新疆 哈密 839009
  • 出版日期:2000-08-01 发布日期:2021-02-22
  • 作者简介:李巧梅( 1966-),女,工程师,石油地质, 1988年毕业于西南石油学院。

Formation of A Source-Mixed Type of Pool and Its Geochemical Characteristics in Turpan-Hami Basin

Li Qiaomei   

  1. Female,Engineer, Petroleum Geology,Research Institute of Exploration and Development, PetroChinaTurpan-Hami Oil, CNPC, Hami,Xinjiang,839009 China
  • Online:2000-08-01 Published:2021-02-22

PDF

188

摘要： 吐哈盆地是在多期构造运动背景下发展起来的一个复合性含油气盆地。主要发育二叠系、三叠系、侏罗系多套烃源岩,燕山运动早期、中—晚期及喜马拉雅运动期为烃源岩的主要生、排烃高峰期。受多期构造运动的影响,盆地内除发现具单一成因类型的“煤型”、“油型”油气藏外,还发现有“混源型”油气藏,并且随着勘探的不断深入,“混源型”油气藏愈来愈普遍。着重剖析了“混源型”油气藏的形成及地球化学特征,探讨其应用原油碳同位素定量分析混源油混源比例之方法,并应用实验验证了该方法的可行性,从而解决了盆地内已发现混源油的混源比例问题。

关键词: 吐鲁番盆地, 哈密盆地, 混合, 油源对比, 油气藏形成, 地球化学特征, 碳同位素, 比例

Abstract: Turpan-Hami basin is a composite petroliferous basin developed under multiple periods of tectonicmovement with multiple series of hydrocarbon source roeks including Permian,Triassic and _Jurassic. The periods ofearly,middle-late Yanshan movement and Himalayan movement are its major periods for hydrocarbon generation andexpelling. By influence of multi-period structural movements,not only are “coal-type”and “oil-type”pools with singleorigin found, but“source-mixed-type”pools existed,, and the higher degree of exploration, the more of the pools arefound. This paper analyzed the formation mechanism and geochemical features of this type of reservoir,and discussedthe method for using crude carbon isotope quantitative analysis to determine the mixed ratio. It is indicated that thismethod is feasible, thus making the mixed ratio problem arisen in the basin be solved finally.