J4 ›› 2009, Vol. 39 ›› Issue (6): 968-975.

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Reservoir Evaluation and Oil-Gas Distribution of Yurubcheno Oil Field in Russia

DU Xu-dong1,2, ZHAO Qi-hui1, NI Guo-hui1, CAI Hong-ya1, ZHOU Kai-feng1,CHEN Xing-xia2, ZHU Jian-wei2,3   

  1. 1.China National Logging Corporation,Beijing100101,China;2.College of Earth Sciences, Jilin University, Changchun130061,China;3.Key-Laboratory for Evolution of Past Life and Environment in Northeast Asia, Ministry of Education, Changchun130026,China
  • Received:2008-12-15 Online:2009-11-26 Published:2009-11-26

Abstract:

The carbonate reservoir evaluation based on well logging data of Russian logging series is done in Yurubcheno oil field in Siberian platform. On the basis of the conversional log characteristic analysis, evaluation parameters from the logging data are given for identification of the reservoir types, fractures, shale intervals of the formation and tight reservoirs in the carbonate reservoir with dual porosity. The reservoirs are classified into matrix type, micro fracture type and macro fracture type. The preferential directions of fractured reservoir distribution are NE-SW and NW-SE which are consistent with the distribution of carbonate and the structural high of the buried hill. It generally locates 0-100 m under unconformity which corresponds to the distribution direction of the dolomite corrosion zone, which controls the distribution of the high production wells. But the distribution of the fractured reservoir is heterogeneous and anisotropic in this field. Factors controlling the distribution of oil and gas in this field are the lithology of the reservoir and its structural location in the buried hill. The reservoir in Yurubcheno Formation, which is pure dolomite and has good location in the structure, has high oil and gas yield. There is poor oil and gas production in the reservoirs in Dolgoktinskaya Formation, where the lithology is not pure dolomite, and the Kuyumbinskaya Formation which located at a lower structural location.

Key words: Yurubcheno, oil fields, fracture reservoir, reservoir evaluation, reservoir distribution, Russia, petroleum gas

CLC Number: 

  • P618.13
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