Dynamics of oil/water displacement in capillary tubes with periodically varying diameter
| Autor: | E. Wolfram, Janos Pinter, Éva Kiss |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Aqueous solution
Materials science Polymers and Plastics Capillary action Polyethylene Viscosity chemistry.chemical_compound Colloid and Surface Chemistry Pulmonary surfactant chemistry Flow velocity Materials Chemistry Physical and Theoretical Chemistry Composite material Displacement (fluid) Polyurethane |
| Zdroj: | Colloid & Polymer Science. 260:808-810 |
| ISSN: | 1435-1536 0303-402X |
| DOI: | 10.1007/bf01452074 |
| Popis: | In order to simulate microscopic processes that may occur during tertiary oil recovery, capillary tubes of glass, polyethylene and polyurethane withperiodically varying cross-section were prepared, and the displacement of highern-alkanes by aqueous solutions of sodium-dodecylsulfate was studied by means of microphotography. Investigated was the influence of the surfactant concentration, the flow velocity and the viscosity ratio of the two fluids on the dynamic contact angle and the distribution of the “oil” in the pores. It was found that both the extent of the hydrodynamically trapped oil and the way it occurs depends on the local geometry. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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