Lithologic Reservoirs ›› 2011, Vol. 23 ›› Issue (1): 52-56.doi: 10.3969/j.issn.1673-8926.2011.01.008

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Study on characteristics and distribution of Archaeozoic reservoir in Dongying Sag

LI Bo1, TIAN Meirong2, ZHANG Fan1, XU Bing2, WANG Xingzhi1   

  1. 1. Southwest Petroleum University, Chengdu 610500, China; 2. Geological Science Research Institute, Shengli Oilfield Company, Sinopec, Dongying 257015, China
  • Online:2011-02-20 Published:2011-02-20

Abstract:

The rock type, reservoir space and physical property of Archaeozoic reservoir are studied by means of core observation, thin section and logging analysis. The result shows that Archaeozoic reservoir rocks are mainly composed of granitic rock, dioritoid and dike rock; the reservoir space of Archaeozoic burial hill is mainly fracture; emposieu pore and eluvial pore are valid for oil and gas accumulation; the Archaeozoic reservoir belongs to fractured reservoir with strong heterogeneity both in vertical and areal, and mainly developed in three intervals (the range from 0 to 30 m, from 30 to 60 mand from60 to 120 m) under the apex face of burial hill and distributed around burial hills presented in banded in the plane.

Key words: high resolution sequence stratigraphy, channel sand, waveform seismic facies, electrofacies, sedimentary facies, Daniudi Gasfield, Ordos Basin

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