Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
EXPERIMENTAL INVESTIGATION OF FORCES ACTING ON OIL DROPS WITHIN ESP IMPELLERS
Submission Author:
Rodolfo Perissinotto , SP
Co-Authors:
Rodolfo Perissinotto, William Monte Verde, Marcelo Souza de Castro, Antonio Bannwart, Jorge Luiz Biazussi
Presenter: Rodolfo Perissinotto
doi://10.26678/ABCM.COBEM2017.COB17-0130
Abstract
This research aims to evaluate the forces that act on individual oil drops within an Electrical Submersible Pump (ESP) impeller working with a two-phase oil-water flow. An experimental study was conducted using a prototype designed to allow flow visualization within the impeller through a transparent shell. Images of drops were captured using high-speed photography and tests were performed at five rotational speeds. Images show that the oil drops become smaller when the rotation speed increases. Results for 22 oil drops reveal that the acceleration assumes magnitudes in the order of dozens or hundreds of meters per square seconds, while the resulting force has values around thousandths of Newtons. Accelerations and forces with respect to inertial and non-inertial frames of reference are quite different, because of the centrifugal and Coriolis effects. Accelerations and forces depend on the ESP rotational speed and the water flow rate and field.
Keywords
Electric Submersible Pump, Emulsion, Liquid-liquid flow, Petroleum, Oil Droplets, Flow Visualization, fluid mechanics, oil-water flow
