油气地质

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

  • 刘义坤 ,
  • 王亮 ,
  • 王福林
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  • 1.成都理工大学沉积地质研究院; 2.成都理工大学“油气藏地质及开发工程”国家重点实验室
刘琪,1984 年生,女,成都理工大学在读硕士研究生,主要从事沉积学的学习和研究工作。地址:(610059)成都理工大学沉积地质 研究院。E-mail:654440474@qq.com

网络出版日期: 2010-03-15

High resolution sequence stratigraphy of Neogene upper Ganchaigou Formation in west segment, northern margin of Qaidam Basin

  • LIU Yikun ,
  • WANG Liang ,
  • WANG Fulin
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  • 1. Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China; 2. State Key Laboratory of Oil & Gas Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China

Online published: 2010-03-15

摘要

以高分辨率层序地层学原理为指导,通过野外露头剖面、岩心观察、钻井及测井曲线等资料分析, 将上干柴沟组划分为2 个长期基准面旋回和6 个中期基准面旋回,分析了2 个级别旋回的结构、叠加样式,在单井层序划分的基础上建立了上干柴沟组层序地层格架对比图。长期基准面旋回结构分布特点与地层之间存在较好的对应关系,位于湖盆中心、地层厚度大的地区主要发育C2型长期基准面旋回结构,而位于湖盆边部、地层相对较薄的地区主要发育C1型长期基准面旋回结构。最后以上干柴沟组层序地层等时对比格架为基础,编制了该区的岩相古地理图。

本文引用格式

刘义坤 , 王亮 , 王福林 . 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 . DOI: 10.3969/j.issn.1673-8926.2010.01.012

Abstract

Based on high resolution sequence stratigraphy theory, and according to the analysis of description of field outcrop profiles, cores, well drilling and logging trace, the Neogene upper Ganchaigou Formation in west segment,northern margin of Qaidam Basin are divided into two long-term base level cycles and six medium-term base level cycles. The deposition structure and stacking patterns of this two levels cycle are analyzed. Sequence stratigraphic framework of upper Ganchaigou Formation is established based on the sequence division of single well. The distribution feature of long-term base level cycle sequence has better relation with stratum. The long-term base level cycle sequence type of C2 mainly developed in the central basin and thick stratum areas, and the type of C1 mainly developed in the margin of the basin and thin stratum areas. Based on the sequence stratigraphic isochronous correlation framework, the lithofacies and paleogeographymap of the study area have been drawn up.

参考文献

[1] 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系为例[J].岩性油气藏,2007,19(1):46-51.
[2] 张正刚,袁剑英,阎存凤,等.柴北缘地区冷湖3-5 号构造带成藏控制因素分析[J].岩性油气藏,2009,21(2):42-44.
[3] 张友,邓荣敬,刘念周,等.柴达木盆地西部上干柴沟组上段高分辨率层序地层学研究[J].北京大学学报,2006,42(4):431-438.
[4] 李永军,付国民,阎海卿,等.柴达木盆地干柴沟地区第三系层序地层分析及其油气勘探意义[J].西安工程学院学报,2000,22(3):11-18.
[5] 李凤杰,刘琪,刘殿鹤,等.柴达木盆地北缘下干柴沟组储层特征及影响因素分析[J].天然气地球科学,2009,20(1):44-49.
[6] 王鹏,赵澄林.柴达木盆地北缘地区第三系碎屑岩储层沉积相特征[J].石油大学学报,2001,25(1):12-16.
[7] 党玉琪,尹成明,赵东升.柴达木盆地西部地区古近纪与新近纪沉积相[J].古地理学报,2004,6(3):297-306.
[8] 郑荣才,尹世民,彭军.基准面旋回结构与叠加式样的沉积动力学分析[J].沉积学报,2000,18(3):369-375.
[9] 张道伟,史基安,李传浩,等.柴西南地区古近系—新近系井-震统一层序地层格架的建立[J].沉积学报,2008,26(3):392-398.
[10] 李凤杰,郑荣才,蒋斌. 中国大陆主要盆山耦合系统及其特征[J].岩性油气藏,2008,20(4):26-32.
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