| 东营凹陷永554古近系沙四段沟道浊积岩相模式 |
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| 引用本文： | 袁静,徐根旺.东营凹陷永554古近系沙四段沟道浊积岩相模式[J].煤田地质与勘探,2003,31(6):11-14. |
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| 作者姓名： | 袁静 徐根旺 |
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| 作者单位： | 1. 石油大学, 山东 东营 257061; |
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| 基金项目： | 中国石油天然气集团公司"九五"科技工程项目(编号970206-02-01)资助 |
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| 摘 要： | 在岩心观察基础上,通过薄片鉴定、粒度分析等测试手段,综合地质、物探和测井资料,对东营凹陷永5 5 4井区古近系沙四段砂砾岩体进行研究。结果表明,该砂砾岩体是在东营凹陷东北边缘陡坡带控盆断层及其派生的次级小断层的控制下,在与凹陷长轴近于平行的断槽中形成的深水沟道浊积岩。该沉积体岩石成分成熟度和结构成熟度均较低,碎屑物质以递变悬浮搬运为主,沉积构造具有典型的重力流成因特征。建立了沟道浊积岩退积型相模式,分析了该沟道浊积岩体的储集性能及成因,并对下一步油气勘探提出建议
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| 关 键 词： | 沟道浊积岩 相模式 储集性能 古近系 东营凹陷 |
| 文章编号： | 1001-1986(2003)06-0011-03 |
| 收稿时间： | 2003-01-17 |
| 修稿时间： | 2003年1月17日 |
Sedimentary facies models of channel turbidites of the fourth member of Paleogene Shahejie Formation in Yong 554 well block, Dongying Sag |
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| YUAN Jing ,XU Gen wang.Sedimentary facies models of channel turbidites of the fourth member of Paleogene Shahejie Formation in Yong 554 well block, Dongying Sag[J].Coal Geology & Exploration,2003,31(6):11-14. |
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| Authors: | YUAN Jing XU Gen wang |
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| Institution: | 1. University of Petroleum(East China), Dongying 257061, China;2. Shengli Oil Field, Dongying 257061, China |
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| Abstract: | The characteristics are studied on the conglomerate body of the member 4 of Paleogene Shahejie Formation in Yong 554 well block,Dongying sag by core observing,thin section and grain size analysis,seismogram and logging.It is showed that this conglomerate body was a deep water channel turbidites formed in a trough fault paralleling sag's long axis controlled by Tuo Yong Sheng fault and it's secondary faults on the south east slope in Dongying sag.The conglomerate body had low compositional maturity and textural maturity.Being the main rock types,medium sandstone and coarse sandstone,which were arkoses and litharenite mainly,and conglomerate had poor coefficients of psephicity and sorting.It is showed by grain size analysis that graded suspending was the main transition manner of clasts.Most of the sedimentary structures were generated by 1 gravity flow.The paper found its offlap facies model including channel subfacies and overflowing subfacies by discussing facies markers.The properties and cause of formation of reservoir in this channel turbidites were analyzed in the end of the paper. |
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| Keywords: | channel turbidite sedimentary facies model reservoir property Paleogene Dongying sag |
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