Eventos Anais de eventos
ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
STUDY OF PRECIPITATION OF CaCO3 CRYSTALS BY PHOTOMICROSCOPY
Submission Author:
Romulo Fejoli , ES
Co-Authors:
Romulo Fejoli, Rafael Cosmo, Rodrigo Maciel , Fabio de Assis Ressel Pereira, Edson Soares, Daniel Ribeiro, Marcus Ferreira, Andre Leibsohn Martins
Presenter: Romulo Fejoli
doi://10.26678/ABCM.ENCIT2020.CIT20-0630
Abstract
Inorganic salts fouling is one of the operational problems that pose major challenges to flow assurance of oil and gas exploration and production. In order to act effectively in the mitigation of this phenomenon, it is important to understand its behavior under the conditions in which they occur, whether in the porous medium and / or in the completion equipment. Photomicroscopy technique can be an effective tool to achieve this goal as it has the ability to provide measurement of the equivalent diameter of a particle – even if it is under to high pressures and temperatures. The aim is to compare photomicroscopy to a consolidated technology for determining particle or drop size distribution (PSD or DSD). The procedure consists of the dispersion of solid calcium carbonate (CaCO3) in water and simultaneous analysis by photomicroscopy and laser diffraction. Comparison of the PSD diagrams of the two techniques validates the procedure for ambient pressure and temperature. The next step is to perform this procedure on a pressurized and heated reactor.
Keywords
CaCO3, crystals, photomicroscopy, PSD, laser diffraction
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