Lithologic Reservoirs ›› 2011, Vol. 23 ›› Issue (5): 121-126.doi: 10.3969/j.issn.1673-8926.2011.05.024

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Research on Triassic interbeds in block one of Tahe Oilfield

LIU Hailei， DAI Junsheng， YIN He， JIA Kaifu   

  1. Faculty of Geo-Resources and Information， China University of Petroleum， Qingdao 266555， China
  • Online:2011-10-20 Published:2011-10-20

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Abstract:

According to the geological characteristics of Triassic reservoir in block one of Tahe Oilfield, the logging data of 37 wells in this area are dealt with, and the distribution of interbeds is studied. The study area is divided into 3 oil layer groups, 11 sublayers, 10 interlayers and 26 interbeds. The distribution of interlayers and interbeds is described, and the relationship between interbeds and the remaining oil distribution are analyzed. The result shows that the interlayers between the main reservoirs extend a long distance with the stable thickness and a enrichment of remaining oil at the bottom, and the distribution frequency and density of the interbeds in the main reservoirs are high with a high level of remaining oil.

Key words: Carboniferous, volcanic rock, fracture characteristics, Hongche fault belt, Junggar Basin

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