Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Experimental analysis of water/oil emulsion effective viscosity in pipeline
Submission Author:
Natan Augusto Vieira Bulgarelli , SP , Brazil
Co-Authors:
Natan Augusto Vieira Bulgarelli, Jorge Luiz Biazussi, Marcelo Souza de Castro, Carlos Eduardo Perles, William Monte Verde, Antonio Bannwart
Presenter: Natan Augusto Vieira Bulgarelli
doi://10.26678/ABCM.COBEM2017.COB17-0473
Abstract
This paper examines the experimental results of effective viscosity for water/oil emulsions and compares them with such literature models as Einstein (1906, 1911), Furuse (1972), Taylor (1932), Brinkman (1952) and Roscoe (1952). The experiment was carried out in a 10m long horizontal pipe line with 82.8mm i.d. In the experiment, researchers used two oil viscosities, 52 mPa.s and 313 mPa.s. Experimental effective viscosity was obtained by differential pressure measurements. The water/oil emulsions were produced by an 8-stage (in line) centrifugal pump (Electrical Submersible Pump - ESP) and a choke valve. The phase inversion phenomenon was detected by the sharp decline of the pressure drop in the emulsion line. For water-in-oil emulsion (oil as the continuous phase) with the 313 mPa.s viscosity oil, the experimental data fairly agreed with Einstein’s (1906, 1911) model. In the case of water-in-oil emulsions with the 52 mPa.s viscosity oil, better agreement was observed with Brinkman (1952) and Roscoe (1952) models. For the oil-in-water emulsions (water as the continuous phase), the comparison between experimental data and all tested models presented satisfactory results.
Keywords
effective viscosity, water/oil emulsion, phase inversion, Electrical Submersible Pump, pressure drop
