Sedimentary Microfacies and Evolution of Sand Members I and Ⅱ of Lower Ganchaigou Formation in Hongliuquan Area of Qaidam Basin

Expand
  • (1 Key Laboratory of Gas Geochemistry, Chinese Academy of Sciences, Lanzhou 730000, China; 
    2.Graduate School of  Chinese Academy of Sciences, Beijing 100049, China; 3. Research Institute of Exploration and Development, Qinghai Oilfield Company, PetroChina, Dunhuang 636202, China; 4. Northwest Branch, 
    Research Institute of Petroleum Exploration & Development, PetroChina, Lanzhou 730020, China)

Received date: 2007-10-12

  Revised date: 2008-01-16

  Online published: 2008-02-10

Abstract

By the observation and description of field geological profiles and cores, sand is divided into four members in the Lower Ganchaigou Formation (E13) in the Hongliuquan area of the Qaidam basin. This paper analyzes the sand members I and Ⅱ. Through integrating sedimentary microfacies of the profile as well as content and distribution of the microfacies sandstone, ichnographies of the sedimentary microfacies in the area are protracted. Based on the analysis of electrical characteristics of the sedimentary facies, the pattern recognition of the sedimentary microfacies and the analysis of single-well facies, the sedimentary succession and the model of sedimentary evolution are established. The results show that subaqueous channel sandbodies and sheet sandbodies of deltafront are well developed in the sand members I and Ⅱof the Lower Ganchaigou Formation. Through the study of sedimentary microfacies and evolution, favorable reservoir facies are found in the area, consequently providing a geological foundation for progressive exploration in the oilfield.

 

Cite this article

DONG Wen-ju, ;ZHANG Dao-wei,, ;SHAO Yi, ; WANG Bin, ;LIU Zhen-hua . Sedimentary Microfacies and Evolution of Sand Members I and Ⅱ of Lower Ganchaigou Formation in Hongliuquan Area of Qaidam Basin[J]. Natural Gas Geoscience, 2008 , 19(1) : 111 -115 . DOI: 10.11764/j.issn.1672-1926.2008.01.111

References

[1] 周金保. 沉积微相研究成果在濮城油气田滚动勘探中的应用[J].石油勘探与开发, 2004, 31(4): 68-70.
[2] 唐大海, 吕启厚.东营凹陷中央隆起带西段沙三中亚段第Ⅰ、Ⅱ砂层组沉积微相研究[J].天然气地球科学,2000,23(1):43-50.
[3] 赵虹, 党犇, 李文厚,等.安塞地区延长组沉积微相研究[J]. 天然气地球科学, 2004, 15(5):492-497. 
[4] 李友强, 文志刚, 李维峰, 等. 华池油田152井区长33砂组沉积微相研究[J]. 天然气地球科学, 2004, 15(2):201-204.
[5] 陈波, 李孝军. 油田开发阶段砂岩储集层横向对比及预测方法[J]. 石油勘探与开发, 2000,27(1): 95-97.
[6] 何顺利, 郑祥克, 魏俊之,等. 沉积微相对单井产能的控制作用[J]. 石油勘探与开发, 2002,29(4): 72-73.
[7] 唐海发, 赵彦超, 汪立君. 胜坨气田明化镇组下段沉积微相特征及其与储层物性的关系[J]. 天然气地球科学, 2004, 15(3):257-260.
[8] 陈程, 孙义梅, 邓宏文. 油田开发后期扇三角洲前缘微相分析及应用[J]. 现代地质, 2001, 15 (1) : 88-93.
[9] 于广瀛, 周锋德. 泌阳凹陷双江地区核三段Ⅱ、Ⅲ、Ⅳ砂组沉积微相研究[J]. 天然气地球科学, 2002, 13(1/2): 77-80.

Outlines

/