Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
RHEOLOGICAL STUDY OF GAS HYDRATES FORMED FROM CARBON DIOXIDE MOLECULES
Submission Author:
Gustavo Alonso Barrientos Sandoval , RJ
Co-Authors:
Gustavo Alonso Barrientos Sandoval, Edson Soares, Roney Thompson, Flavio Barboza Campos, Adriana Teixeira
Presenter: Gustavo Alonso Barrientos Sandoval
doi://10.26678/ABCM.COBEM2017.COB17-0670
Abstract
Hydrate concern have been the focus of attention in offshore oil production since the conditions for its formation are found in the deep subsea flowlines. Several works have been realized to understand this phenomenon and try to prevent and control it, but nowadays mechanisms related to its formation (nucleation including subcooling processes, growth) and decomposition are still not well understood. In this study, a high pressure cell is used to analyse rheologically the gas hydrate formation from water-in-crude oil emulsions. The viscosity behaviour of the hydrate slurry is measured during the dissolution, formation and dissociation. When hydrate is formed the hydrate slurry viscosity increases abruptly with time and the pressure decreases as a consequence of the gas consumption. Finally, it is shown how the subcooling degree influences the induction time under certain conditions.
Keywords
Gas Hydrates, Water-in-Oil Emulsions, Pressure cell, Carbon dioxide
