Lithologic Reservoirs >

2010 , Vol. 22 >Issue 4: 37 - 42

DOI: https://doi.org/10.3969/j.issn.1673-8926.2010.04.007

Terminal fan sedimentary system of Lulehe Formation in Qianxi area in northern margin of Qaidam Basin

  • LEI Tao ,
  • ZHOU Wen ,
  • YANG Yi ,
  • DENG Hucheng ,
  • ZHANG Guanghui ,
  • ZHAO Ankun
Expand
  • （1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology， Chengdu 610059，China； 2. Institute of Sedimentary Geology， Chengdu University of Technology， Chengdu 610059， China； 3. Guangxi Electric Power Industry Investigation and Design Research Institute， Nanning 530023， China； 4. Research Institute of Petroleum Exploration & Development， Qinghai Oilfield Company， PetroChina， Dunhuang 735100，China

Online published: 2010-12-15

Fold

Abstract

The climate of the Qaidam Basin was arid to semiarid at the Cenozoic, and the strata deposits mainly are terrigenous clastics. Based on the core observation, the lithology, rock texture, sedimentary structure and the exposure evidence of Lulehe Formation are analyzed. Combined with well log analyses, it is believed that the sedimentary system of Lulehe Formation is terminal fan which formed in arid to semiarid regions. The model includes a tripartite zonation of terminal fan into feeder zone, distributary zone and basinal zone. The distributary zone mainly consists of distributary channel deposit, flood plain deposit, overbank deposit and sheet flood deposit. Feeder and distributary zone are the main deposition in Qianxi area. The subfacies distribution is analyzed and the sedimentary facies model is established. The relationship between subfacies and reservoir development is discussed and the distributary zone is the most favorable subfacies for reservoir development.

Key words： marine source rocks; log response; organic matter abundance; Ordovician; TarimBasin

Cite this article

LEI Tao , ZHOU Wen , YANG Yi , DENG Hucheng , ZHANG Guanghui , ZHAO Ankun . Terminal fan sedimentary system of Lulehe Formation in Qianxi area in northern margin of Qaidam Basin[J]. Lithologic Reservoirs, 2010 , 22(4) : 37 -42 . DOI: 10.3969/j.issn.1673-8926.2010.04.007

References

［1］ Nichols G J，Fisher J A. Processes，facies and architecture of fluvial distributary system deposits ［J］. Sedimentary Geology，2007，195：75-90.
［2］ Kelly S B，Olsen H. Terminal fans—A review with reference to Devonian example［J］. Sedimentary Geology，1993，85：339-374.
［3］ 张运东，宋建国，朱如凯.塔里木盆地西南坳陷上第三系沉积相及岩相古地理特征［J］.新疆石油地质，1999，20（2）：123-126.
［4］ 朱如凯，魏伟，张运东.塔里木盆地库车坳陷新生界终端扇沉积体系与储层研究［J］.沉积学报，1999，17（增刊）：752-757.
［5］ 裘亦楠.碎屑岩储层沉积基础［M］.北京：石油工业出版社，1987：69-70.
［6］ 张金亮，张晓华.末端扇———在中国被忽略的一种沉积作用类型［J］.地质论评，2007，53（2）：170-179.
［7］ 张金亮，谢俊.储层沉积相［M］.北京：石油工业出版社，2008：81-98.
［8］ 戴俊生.柴达木盆地构造样式控油作用分析［J］.石油实验地质，2000，22（2）：121-124.
［9］ 汤良杰，金之钧，张明利，等.柴达木盆地北缘构造演化与油气成藏阶段［J］.石油勘探与开发，2000，27（2）：36-39.
［10］ 赵加凡，陈小宏，杜业波.柴达木第三纪湖盆沉积演化史［J］.石油勘探与开发，2004，31（3）：41-44.
［11］ 张景廉，石兰亭，陈启林，等.柴达木盆地地壳深部构造特征及油气勘探新领域［J］．岩性油气藏，2008，20（2）：29-36.
［12］ 刘琪，李凤杰，郑荣才，等.柴达木盆地北缘西段新近系上干柴沟组高分辨率层序地层学研究［J］．岩性油气藏，2010，22（1）：65-69.
［13］ 陈启林.大型咸化湖盆地层岩性油气藏有利条件与勘探方向———以柴达木盆地柴西南古近纪为例［J］．岩性油气藏，2007，19（1）：46-51.
［14］ 张成君，崔彦立，孙柏年．柴达木盆地北缘第三系碎屑岩储层特征［J］．甘肃地质学报，2001，10（2）：46-51.
［15］ 蒋斌，李凤杰，郑荣才，等．柴达木盆地北缘西段古近系路乐河组沉积相特征研究［J］．岩性油气藏，2010，22（1）：48-52.
Options
Outlines

/

〈 〉

Copyright © 2018 Lithologic Reservoirs

Support by Beijing Magtech support@magtech.com.cn