西南石油大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (4): 31-34.DOI: 10.3863/j.issn.1000-

• 地质勘探 • 上一篇    下一篇

临南洼陷流体包裹体特征与成藏时间研究

朱志强1,2 曾溅辉1,2   

  1. 1.中国石油大学盆地与油藏研究中心,北京 昌平 102249; 2.中国石油大学石油天然气成藏机理教育部重点实验室,北京 昌平 102249
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-08-20 发布日期:2008-08-20

FEATURE OF FLUID INCLUSIONS AND THE PERIOD OF PETROLEUM ACCUMULATION IN LINNAN SAG

ZHU Zhi-qiang1,2 ZENG Jian-hui1,2   

  1. 1.Basin and Reservoir Research Center,China University of Petroleum,Changping Beijing 102249,China;2.Key Laboratory for Hydrocarbon Accumulation Mechanism,Ministry of Education,China University of Petroleum,Changping Beijing 102249,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-08-20 Published:2008-08-20

摘要:

为确定临南洼陷油气的成藏时期,对洼陷不同构造部位的流体包裹体进行了系统研究。通过对流体包裹体特征的分析,应用流体包裹体均一温度的资料,结合相应沉积埋藏史、热史和生烃史,探讨了临南洼陷油气的运聚成藏历史。临南洼陷砂岩储层中主要发育3类流体包裹体:盐水溶液包裹体、液态烃包裹体和气态烃包裹体,与有机包裹体共生的盐水溶液包裹体的均一温度主要集中在105~125℃。研究结果表明,临南洼陷不同构造部位的油气具有不同的成藏期:处于洼陷中心区的油藏为两期成藏,分别是渐新世东营期和中新世馆陶期至上新世明化镇期,其中第二期为主要成藏期;处在洼陷边缘的油藏为中新世馆陶期至上新世明化镇期一期成藏。

Abstract:

In order to determine the period of hydrocarbon accumulation in Linnan Sag,study on fluid inclusions of different structural parts is done systematically in this paper.The history of hydrocarbon migration and accumulation in Linnan sag is discussed based on the data of fluid inclusions,homogenization temperature,burial history,thermal history and hydrocarbon generation analyses.There are mainly 3 types of fluid inclusions in sandstone reservoirs in Linnan Sag,i.e.,aqueous inclusion,liquid hydrocarbon inclusion and gas hydrocarbon inclusion.The homogenization temperatures of the aqueous inclusions coexisting with organic inclusions are 105-125℃.It is supposed that in different structural parts in Linnan Sag there are different periods of hydrocarbon accumulation.Hydrocarbon accumulation in the center of Linnan Sag occurred in two stages.They were late Oligocene Dongying Period and Miocene Guantao Period to Pliocene Minghuazhen Period.The latter is the main accumulation period.Hydrocarbon accumulation on the edge of Linnan Sag occurred in Miocene Guantao to Pliocene Minghuazhen Period.

Key words: Linnan Sag, fluid inclusion, homogenization temperature, basin modeling, the period of petroleum accumulation, Bohai Bay Basin

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