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Title: Core-annular oil/water flow: the turbulent-lubricating-film model and measurements in a 2-in. pipe loop

Journal Article · · Soc. Pet. Eng. AIME, Pap.; (United States)
DOI:https://doi.org/10.2118/13725-MS· OSTI ID:5063969

Core-flow tests with a 3000 mPa.s fuel oil in a 2-inch test facility have revealed important information on the amplitudes and lengths of waves at the oil/water interface. The wavelengths vary considerably with water fraction and oil velocity. Moreover, the flow in the water annulus is turbulent. A previously developed theoretical model for steady core-annular flow in pipes has been extended by incorporating the effect of turbulence in the water film surrounding the oil core. Core-flow pressure gradients predicted by the adapted model coincide very well with measurements provided that actual wave amplitudes and wavelengths observed during these tests are used as input data.

Research Organization:
Koninklijke/Shell Laboratorium
OSTI ID:
5063969
Journal Information:
Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE13725
Country of Publication:
United States
Language:
English