Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
EXPERIMENTAL EVALUATION OF EFFICIENCY OF GAS SEPARATION IN AN INVERTED-SHROUD GAS-LIQUID SEPARATOR IN VERTICAL POSITION
Submission Author:
Pedro José Miranda Lugo , SP , Brazil
Co-Authors:
Pedro José Miranda Lugo, Marcel Cavallini Barbosa, Douglas Ricardo Sansão, L. Enrique Ortiz-Vidal, Oscar Mauricio Hernandez Rodriguez
Presenter: Pedro José Miranda Lugo
doi://10.26678/ABCM.ENCIT2018.CIT18-0630
Abstract
We evaluated experimentally the efficiency of gas separation (EGS) in a vertical Inverted-Shroud gas-liquid separator. A pilot facility was constructed in order to simulated the operational conditions in the production wells. Water and air were chosen as working fluid. Observations showed the vertical Inverted-Shroud separator has different behavior when compared to its inclined operation, where the free-surface flow characteristic of the IS-separator inclined becomes either in a thin film flow or a cascade-shaped flow depending on the liquid flow rate and the interfacial instabilities. High air entrainment phenomenon and turbulent kinetic energy dissipation were obtained, thus the swarms of bubbles generated in the inner annular channel were larger than the swarms of bubbles seen in the separator inclined. A map of efficiency of gas separation as a function of dimensionless parameters is presented. The higher dimensionless internal annular level, the greater EGS. In addition, the greater liquid flow rates, the lower EGS. The results obtained are in agreement with data reported in the literature.
Keywords
Gas-separation, Inverted-Shroud separator, Air entrainment, energy dissipation, swarm of bubbles
