Lithologic Reservoirs ›› 2009, Vol. 21 ›› Issue (4): 99-104.doi: 10.3969/j.issn.1673-8926.2009.04.020

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The division and character of clastic reservoir flowing unit：An example from Chang 2 reservoir of Yanchang Formation in Fuchang area, Northern Shanxi

SHI Yujiao1， GAO Zhendong2，WANG Qicong1，WANG Gang1   

  1. 1. School of Petroleum Resources， Xi’an Shiyou University， Xi’an 710065， China； 2. Wayaobao Oil Factory， Yanchang Petroleum Administration， Zichang 717300， China
  • Online:2009-12-16 Published:2009-12-16

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Abstract:

This article introduced the concept and the research approach of clastic reservoir flowing unit. Taking the Chang 2 reservior of Upper Triassic in Shanbei Fuchang area as an example, the flowing units are divided according to flowing index FZI. The petrophysical characteristics of flowing units are studied on the basis of experimental data of thin section analysis, image analysis, SEM, mercury penetration and so on. The Chang 2 reservior can be divided into 5 kinds of flowing unit by flowing indexes FZI . Every kind of flowing unit has certain relationship between porosity and permeability. The result shows that the method of the classification of flowing unit with FZI is efficient path for the classification, evaluation and genetic analysis of reservoir.

Key words: loggingfacies, braided delta, fan delta, distributary channel, ZG Gas Field

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