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1 2008

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Perspektivi ispol’zovania elasticnoj turbulentnosti v tehnologiah izvlecenia nefti

Ahmetov A. T., Vasil'ev A. V., Mavletov M. V., Sametov S. P., Rahimov A. A., Vlasov S. A.

Prace Instytutu Nafty i Gazu

2008

nr 150 wydanie konferencyjne

867--871

In the flow of dilute high-weight polymer solutions in channels of variable cross-section elastic turbulence occurs at low Reynolds number increase of hydraulic resistance by several times in comparison with water is found. And viscosity of а solution only by 10-20% exceeds viscosity of water. This phenomenon is connected to appearance of elastic turbulence. On bulk models this phenomenon was studied by James and McLaren (1978), in channels of variable section — Kalashnikov V.N. (1987). We had conducted experiments in plane and bulk models of variable cross-section and in the complex structure of channels representing the cut of oil-bearing rock. А visual examination of the flow field was realized. The increase in hydraulic resistance in аll types of flow is revealed at low Reynolds number. Pulsations of structure of а flow with frequency of 5-10 Hz are discovered. Competent use of modes with elastic turbulenсе will allow to essentially raise the еfficiency of water-flooding in oi1 recovery.