Relationship between wetting properties and macroscale hydrodynamics during forced gravity drainage and secondary waterflood

Rostami, B ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1080/10916460902804705
  3. Abstract:
  4. In order to relate the wetting properties at the pore scale to the macroscale prevailing forces, a series of experiments was performed in vertical porous media under forced gas invasion at various wettability conditions with partially spreading oil. To describe the dynamics of oil recovery in a three-phase flow condition, the downward gas flood experiments were continued by water injection from the bottom. Experimental results obtained in situations where the magnitudes of viscous, capillary, and gravity forces are comparable. We study the transition from flow configurations where the interface is stable with respect to viscous instability to flow configurations where viscous fingering occurs. The results also have been analyzed using a dimensionless number
  5. Keywords:
  6. Wettability ; Dimensionless number ; Flow configurations ; Gas floods ; Gravity drainage ; Gravity forces ; Macro scale ; Oil recoveries ; Pore scale ; Porous Media ; Three-phase flow ; Viscous fingering ; Viscous instability ; Water flood ; Wetting property ; Experiments ; Phase interfaces ; Porous materials ; Wetting ; Water injection
  7. Source: Petroleum Science and Technology ; Volume 28, Issue 8 , 2010 , Pages 804-815 ; 10916466 (ISSN)
  8. URL: http://www.tandfonline.com/doi/abs/10.1080/10916460902804705