中国石油大学学报（自然科学版）2011，Vol.35Issue(4)：34-40,7.DOI:10.3969/j.issn.1673-5005.2011.04.006
准噶尔盆地车排子凸起带轻质油成藏机制
Accumulation mechanism of light oils in Chepaizi uplift belt of Junggar Basin
摘要
Abstract
According to the oil-gas geochemistry and hydrocarbon accumulation geology theory, the light oil accumulation mechanism of Chepaizi uplift belt was studied by using data of geochemical, isotopes, fluid inclusions of light oil and the thermal evolution of source rocks. The results show that the light oils of the area mainly come from Jurassic source rocks of Sikeshu sag, some of which are from Cretaceous source rocks. In the mid-late Neogene period, the Jurassic source rocks are in hydrocarbon-generating peak. And the formed crude oil migrates to the bottom of the Cretaceous or Shawan formation of the Tertiary reservoirs along unconformity or faults and accumulates to form anticlinal or lithologic reservoirs. Some reservoirs mix with Cretaceous low mature oil. In the light oil formation, reservoir sedimentary rate is large, and hydrocarbon charging and expulsion efficiency are all high, and the dissipation amount is small, all of these factors are important reasons for rapid accumulation.关键词
准噶尔盆地/地球化学/成藏机制/轻质油/车排子凸起带Key words
Junggar Basin/ geochemistry/ accumulation mechanism/ light oil/ Chepaizi uplift belt分类
能源科技引用本文复制引用
刘洪军,张枝焕,秦黎明,朱雷,席伟军..准噶尔盆地车排子凸起带轻质油成藏机制[J].中国石油大学学报（自然科学版）,2011,35(4):34-40,7.基金项目
国家重点基础研究发展计划“973”课题(2006CB202303) （2006CB202303）
国家科技“十一五”重大专项课题(2008Z05002-006) （2008Z05002-006）
