Xinjiang Petroleum Geology ›› 2006, Vol. 27 ›› Issue (3): 322-323.

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Relationship between WOC Dipping and Varied Petrophysical Properties

SHI Dian-hai1,2   

  1. 1. Nanjing Institute of Stratigraphic Paleontology, CAS, Nanjing, Jiangsu 210000, China;
    2. Research Institute of Geosciences, Shengli Oilfield Company Ltd, Sinopec, Dongying, Shandong 257015, China
  • Received:2005-08-30 Revised:2005-11-01 Online:2006-06-01 Published:2020-10-19

Abstract: The water-oil contact of each reservoir is dipping to some extent in general, which is resulted from the variation of petrophysical properties in reservoir rocks. Based on the theories of reservoir engineering and physical chemistry, a study is conducted on the relationship between dipping angle of WOC and the variation of petrophysical properties, and a theoretical formula is proposed to calculate the relationship. A case study is presented. The creditable description of permeability variation of a reservoir supports the development scheme of this reservoir.

Key words: reservoir, water-oil contact (WOC), dip angle, capillary pressure

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