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インパクトファクター: 1.752 5年インパクトファクター: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN 印刷: 1091-028X
ISSN オンライン: 1934-0508

# Journal of Porous Media

DOI: 10.1615/JPorMedia.v20.i5.40
pages 417-433

## IMMISCIBLE DISPLACEMENT OF VISCOPLASTIC WAXY CRUDE OILS: A NUMERICAL STUDY

Ali Salehi-Shabestari
School of Mechanical Engineering, College of Engineering, University of Tehran, Center of Excellence in Design and Optimization of Energy Systems (CEDOES), Tehran, Iran
School of Mechanical Engineering, College of Engineering, University of Tehran, Center of Excellence in Design and Optimization of Energy Systems (CEDOES), Tehran, Iran
Center of Excellence in Design and Optimization of Energy Systems (CEDOES), School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran

### 要約

The displacement of waxy crude oils obeying the Bingham model was numerically investigated in a water-flooding operation. A more accurate bundle-of-tubes model was developed based on the Rabinowitsch correction method to represent a porous medium. The classic Darcy's law was used as the governing equation using the concept of effective viscosity. Owing to the nondifferentiability of the Bingham model, regularized versions of this rheological model were used to calculate the effective viscosity for the Bingham model. Use was made of the implicit-pressure/explicit-saturation numerical method for solving the governing equations for the saturation profiles. Based on the results obtained in the present work, it is concluded that regularized models are well capable of representing displacement flow of Bingham fluids. It is also concluded that the viscosplastic behavior of waxy crude oils has a negative effect on the water-flooding operation.

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