| 济阳坳陷孤岛潜山油气充注特征 |
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| 引用本文： | 石砥石.济阳坳陷孤岛潜山油气充注特征[J].成都理工大学学报(自然科学版),2008,35(5). |
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| 作者姓名： | 石砥石 |
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| 作者单位： | 胜利油田地质研究院,山东东营,257000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 岩心观察、录井资料和有机地球化学分析表明,孤岛潜山曾有过两期油气充注.早期充注的油藏受到了强烈的生物降解作用改造,绝大多数样品中均存在25-降-17α,21β-藿烷.晚期所充注的油藏未受到生物降解作用的改造.早期和晚期所充注的油藏流体分别来自于沙三段和沙一段烃源岩.已成藏于古潜山中的油藏受到改造和破坏后,先存油藏向上运移聚集到上覆不同层位的储层中,形成多层位充注和上部层位较下部层位油气相对富集的特征,使古潜山中不能形成规模性油气藏.
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| 关 键 词： | 孤岛 古潜山 油藏流体 生物降解 充注 |
Characterstics of the evidences of oil and gas injection in the Gudao buried hill of Jiyang depression,Shandong,China |
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| SHI Di-shi.Characterstics of the evidences of oil and gas injection in the Gudao buried hill of Jiyang depression,Shandong,China[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2008,35(5). |
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| Authors: | SHI Di-shi |
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| Institution: | SHI Di-shiGeological Scientific Research Institute,Shengli Oil Field Corporation of SINOPEC,Dongying 257000,China |
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| Abstract: | Based on the core observation,log data and organic geochemical analysis,the evidences of oil and gas injection of two stages can be identified in the Gudao buried hill of Jiyang,Shandong.The early petroleum has been violately biodegraded and 25-norhopane can be found in most of the samples.The later petroleum has not undergone any biodegradation.The petroleum fluid charged in early and late stages are from the source rocks of Member 1 and Member 3 of Shahejie Formation of Paleogene System,respectively.The p... |
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| Keywords: | Gudao buried hill petroleum fluid biodegradation injection |
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