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http://dx.doi.org/10.9719/EEG.2014.47.3.247

The Analysis for the Effect of Effective Compressibility on Oil Recovery in Polymer Flooded Heterogeneous Reservoir  

Baek, Soohyun (Department of Natural Resources and Environment Engineering, Hanyang University)
Jung, Woodong (Department of Natural Resources and Environment Engineering, Hanyang University)
Sung, Wonmo (Department of Natural Resources and Environment Engineering, Hanyang University)
Seo, Junwoo (Department of Natural Resources and Environment Engineering, Hanyang University)
Publication Information
Economic and Environmental Geology / v.47, no.3, 2014 , pp. 247-254 More about this Journal
Abstract
The compressibility of fracture in naturally fractured reservoir is larger than the compressibility of matrix in rock, although the compressibility of a typical rock is very small. The effective compressibility including the fracture compressibility should be considered to predict oil recovery correctly. It is hard to quantify changes of fracture aperture and pore volume in reservoir without the effective compressibility. In this study, oil recovery is analyzed by commercial simulator concerning the fracture compressibility based on fracture properties. We found that the effective compressibility affects oil recovery with change of polymer flooding factors such as polymer molar weight, concentration and injection rate. The estimated cumulative oil production is smaller with the effective compressibility than without it. Also, bottomhole pressure decreases rapidly without considering effective fracture compressibility.
Keywords
naturally fractured reservoir; heterogeneity; effective compressibility; polymer flooding; EOR;
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Times Cited By KSCI : 2  (Citation Analysis)
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