期刊文献+

乌石凹陷中-东区油气来源及成藏时间分析 预览 被引量:2

Analysis of hydrocarbon origin and its accumulation time in the middle and east zone of Wushi sag
在线阅读 下载PDF
收藏 分享 导出
摘要 分析乌石凹陷原油样品地球化学特征,根据特征生物标志物指标将原油划分为3 种类型,即Ⅰ 类、Ⅱ类和Ⅲ类.原油间异戊二烯烷烃、4-甲基留烷和奥利烷等生物标志化合物呈现不同的组成特征.油源对比表明,乌石中-东区I 类原油主要来源于流二段上部源岩,Ⅱ类和Ⅲ类原油主要来源于流二段下部源岩.分析油藏砂岩储层流体包裹体,统计包裹体均-温度测试结果,结合埋藏-热演化史模拟进行对比.结果表明:乌石凹陷不同类型原油成藏时间存在差异,Ⅰ类原油呈晚期成藏的特征,成藏时间为从灯楼角组到望楼港组沉积时期;Ⅱ类原油为早期成藏的特征,成藏时间从下洋组到角尾组沉积时期;Ⅲ类原油成藏时间为从角尾组到灯楼角组沉积时期.乌石凹陷油气来源及油气成藏时间研究可为该区优化、进一步扩大勘探成果提供依据. According to the biomarker index characteristics,crude oils could be divided into three types.All oil subsets have obvious differences in isoprenoid alkane,4—methyl sterane and oleanane and other biomarker compounds.In combination with characteristics of lacustrine source rocks in Wushi sag,Wushi sag is mainly developed into the upper of the 2nd member of Liushagang formation with shallow lake facies and the lower of the 2nd member of Liushagang formation with deep lake facies.Oil-source rock correlation shows that type I oils in the 1st member of Liushagang formation come from the upper of the 2nd member of Liushagang formation;the type II and III oils in the 2nd and 3rd member of Liush-agang formation come from the lower of the 2nd member of Liushagang formation.Based on the analysis of reservoir fluid inclusion,statistical inclusions homogenization temperature test results,combined with thermal history and sedimentary burial evolution,results show that the process of petroleum accumulation in the 1st member of the Liushagang formation is mainly from the N_1d to N_2w,the process of petroleum accumulation in the 2nd member of the Liushagang formation is mainly from the N_1x to N_1j,the process of petroleum accumulation in the 3st member of the Liushagang formation is mainly from the N_ j to N_1d.Research on the Hydrocarbon origin and hydrocarbon accumulation time is so important that it can provide important basis for further exploration.
作者 杨希冰 胡林 金秋月 Yang Xibing;Hu Lin;Jin Qiuyue;Zhanjiang Branch,CNOOC Limited;
机构地区 中海石油
出处 《东北石油大学学报》 CAS 北大核心 2016年第5期9-17,85共10页 Journal of Northeast Petroleum University
基金 国家科技重大专项(20l6ZX05024-006,20l6ZX05024-002-009)
关键词 乌石凹陷 原油 油气来源 流体包裹体 成藏时间 Wushi sag crude oils hydrocarbon origin fluid inclusion accumulation time
  • 相关文献

参考文献25

二级参考文献307

共引文献474

同被引文献55

引证文献2

二级引证文献1

投稿分析
职称考试

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈