Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
TRANSIENT UPWARD INJECTION OF LIQUID IN IMMISCIBLE LIQUID
Submission Author:
Bárbara Cynthia Carnaúba dos Santos , SP , Brazil
Co-Authors:
Bárbara Cynthia Carnaúba dos Santos, Ricardo Augusto Mazza, Ulisses De Alvarenga Morais Neto
Presenter: Bárbara Cynthia Carnaúba dos Santos
doi://10.26678/ABCM.COBEM2019.COB2019-1783
Abstract
The flow of immiscible fluids has applications in several areas of science and engineering. In the petroleum industry, for example, it is found in the displacement of drilling mud and in the cementing of wells. More specifically, in deep and ultra deep water operations, problems with hydrate formation and corrosion are common in petroleum production and one way to avoid them is through the injection of oil to withdraw water in pipelines. This paper aims to study the transient displacement of water by kerosene in a pipeline. Therefore, it was assumed that the kerosene-water transport is governed by the Unidimensional Advection-Diffusion Equation and that the process can be characterized by two main parameters: the average front velocity of the injected liquid and the macroscopic diffusion coefficient. Simulated profiles of kerosene concentration and a computational code based on the inverse analysis were used to recover these characteristic parameters. The difficulty of measuring the macroscopic diffusion coefficient in liquid-liquid flows and the growth of oil operations in deep water motivate this study. The results of the estimates were satisfactory and sensitive to the expected parameters range and the tool presented low errors and quick solution.
Keywords
oil-water flow, front propagation in liquids, macroscopic diffusion, Inverse analysis, parameter estimation
