天然气地质学

柴北缘西段古近系下干柴沟组沉积相特征分析

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  • 1.成都理工大学沉积地质研究院,四川 成都 610059;
    2.成都理工大学油气藏地质及开发工程国家重点实验室,四川 成都 610059

收稿日期: 2009-06-01

  修回日期: 2009-08-05

  网络出版日期: 2009-12-10

基金资助

国家重大专项“中西部前陆盆地构造地质与沉积储层特征”(编号:2008ZX05003-001)资助.

Sedimentary Facies Feature of Paleogene Lower Ganchaigou Formation in the West Segment, North Edge of Qaidam Basin

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  • 1.Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China; 
    2.State Key Laboratory of Oil and Gas Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China  

Received date: 2009-06-01

  Revised date: 2009-08-05

  Online published: 2009-12-10

摘要

根据野外露头剖面和岩心观察,钻井、录井及测井曲线等资料,研究了柴北缘西段古近系下干柴沟组沉积相类型和沉积特征。结果表明,下干柴沟组发育冲积扇、扇三角洲、辫状河、辫状河三角洲和湖泊5种沉积相。在鄂博梁—冷湖潜西地区发育了一套冲积扇—扇三角洲—湖泊沉积体系,马海—南八仙地区发育冲积扇—辫状河—辫状河三角洲—湖泊沉积体系。相应地建立了下干柴沟组沉积相模式。由此更加清楚地展示了下干柴沟组沉积相分布规律,为下一步的油气勘探工作提供可靠的地质资料。

本文引用格式

刘殿鹤,李凤杰,郑荣才,刘琪,蒋斌 . 柴北缘西段古近系下干柴沟组沉积相特征分析[J]. 天然气地球科学, 2009 , 20(6) : 847 -853 . DOI: 10.11764/j.issn.1672-1926.2009.06.847

Abstract

Based on description of field outcrop profiles and cores, well drilling and logging and so on, the types of the sedimentary facies and their characteristics of Paleogene Lower Ganchaigou Formation were studied. The research shows that alluvial fan, fan delta, braid river, braided delta and lacustrine facies were present in the formation. There is a set of fan, fan delta, lacustrine facies depositional system in the Eboliang\|Lenghu\|Qianxi area, and a set of fan, braid river, braided delta, lacustrine facies depositional system in the Mahai\|Nanbaxiang area. The sedimentary facies model was established of Low\|Ganchaigou Formation. It demonstrates the sedimentary facies distribution more clearly, providing the reliable geological information for the next exploration activity.

参考文献

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