中国石油大学学报(自然科学版)2012,Vol.36Issue(2):60-67,8.DOI:10.3969/j.issn.1673-5005.2012.02.010
南堡凹陷断层活动与油气成藏和富集的关系
Relationship between fault activity and hydrocarbon accumulation and enrichment in Nanpu depression
摘要
Abstract
The relationship between fault activity and hydrocarhon accumulation and enrichment in Nanpu depression was studied by the technologies of quantitative evaluation on fault activity and large amount analyses of microscopic fluorescence, homogenization temperatures of fluid inclusions and burial history. The results show that besides 2 boundary faults, there are 45 growth faults which cut source rocks and are active in the phase of Minghuazhen formation. From the phase of Shahejie formation to Dongying formation, the fault activity is increased. The faults is relative inactive in Cuantao formation. In the phase of Minghuazhen formation, the fault activity is increased again. The inactive phase of the faults is mainly in 7-2.5 Ma, 4 Ma in average before present. According to the fault throw in early stage of Minghuazhen formation and inactive phase of the faults, the 45 faults are divided into 3 types named A, B and C. Hydrocarbon distribution is mainly enriched in the favorable traps near type A and type B faults which are relative more active and whose inactive phases are later. The phase of reservoir forming stage is mainly in 5 - 1 Ma, 2 Ma in average before present based on the analyses of homogenization temperatures of fluid inclusions and buried history of wells, which is 2 Ma later than the time of the faults ceasing. After the faults activity ceases, the overlying sedimentary depth is about 180-300 m, and their vertical pathways are gradually closed.关键词
断层活动性/流体包裹体/成藏期/油气富集/南堡凹陷Key words
fault activity/ fluid inclusion/ reservoir forming stage/ hydrocarbon enrichment/ Nanpu depression分类
能源科技引用本文复制引用
万涛,蒋有录,董月霞,赵忠新,谢君..南堡凹陷断层活动与油气成藏和富集的关系[J].中国石油大学学报(自然科学版),2012,36(2):60-67,8.基金项目
国家自然科学基金项目(40972094) (40972094)
国家科技重大专项课题(2008ZX05050) (2008ZX05050)
山东省自然科学基金项目(ZR2011DL009) (ZR2011DL009)