The Geological Characteristics of SEC Analogy Reservoirs in Jilin Oilfield

Author: Liu J.-Y.   Yang S.   Feng Y.-Q.   Feng W.  

Publisher: Taylor & Francis Ltd

ISSN: 1091-6466

Source: Petroleum Science and Technology, Vol.31, Iss.23, 2013-12, pp. : 2548-2554

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

The study was aimed at carefully describing the geological characteristics of analogy reservoirs. By researching the geological characteristics of 199 SEC analogy reservoirs and summarizing the types of analogy reservoirs in Jilin oilfield, the authors have carefully depicted the geological characteristics of analogy reservoirs such as effective thickness, porosity, permeability, oil saturation, oil density, the viscosity of underground crude oil, and recovery. To sum up, there are eight types of SEC analogy reservoirs in Jilin oilfield and their reservoirs are respectively sandstone reservoir, fractured reservoir, and volcanic reservoir, whose porosity and permeability range from middle to low position, effective thickness is between 2.8 and 36.3 m, oil saturation is distributed from 47% to 65%, and crude oil is mainly about light and intermediate oil belonging to conventional oil.