Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Hydrate Phase Equilibrium Using Water-Based Drilling Fluid
Submission Author:
Celina Kakitani , PR
Co-Authors:
Joel Karp, Daniela Carolina Marques, Luciano Rossi, Rigoberto Morales, Amadeu Sum, Celina Kakitani
Presenter: Daniela Carolina Marques
doi://10.26678/ABCM.COBEM2017.COB17-1596
Abstract
In oil and gas pipelines, some issues like wax and asphaltene precipitation and hydrate formation are common and a source of concern in flow assurance. During drilling and production operation, the injection of thermodynamic inhibitors, such as sodium chloride (NaCl), is a traditional way to avoid hydrate formation. It is important to identify the conditions that hydrate formation occurs to prevent hydrate plugs during the exploration and production of oil. This study includes phase equilibrium measurements using a high pressure cell and the isochoric method with pure water, with and without NaCl, water-based drilling fluid and pure methane. The experimental data obtained were also compared with the thermodynamic model developed by the group. The experimental results indicated the effect of the salt inhibitor present in the water-based drilling fluid in the phase equilibrium. Also, the results obtained suggest others components of the drilling fluid have few or almost no influence on the hydrates prediction curve.
Keywords
Gas Hydrate, phase equilibria, drilling fluid
