Petroleo Brasileiro S.a. - Petrobras

Universidade Federal Do Espírito Santo - Ufes

Universidade Federal Da Bahia

Vallourec Soluções Tubulares Do Brasil S.a.

Andre Leibsohn Martins

Bruno Barbosa Castro

Mickael Pusard

Helga Elisabeth Pinheiro Schluter

Iuri Muniz Pepe

Fabio De Assis Ressel Pereira

Geydison Gonzaga Demetino

Luiz Carlos Simões Soares Júnior

Marcus Vinicius Duarte Ferreira

Lucas Ramalho Oliveira

Rafael De Paula Cosmo

Jorge Alberto Da Silva

Fernando Salatiel De Oliveira

Mirela Da Fonseca Quintanilha

José Roberto De Souza JÚNIOR

Raynel Lopes Nogueira

The present invention relates to an apparatus for salt precipitation and scaling tests, which comprises two reagent storage tanks (), a reagent mixing module (), induction period measurement modules (), an ultrasound-assisted precipitation module () and a scaling module with heat exchanger (). From the apparatus, it is possible to carry out tests with the purpose of investigating the influence of parameters such as flow rate, temperature and concentration on salt precipitation and scaling. It is further possible to carry out tests under the action of ultrasound, since it promotes acceleration of chemical reactions.

Apparatus and system for ultrasound-assisted salt precipitation and scaling tests and use

The present invention addresses to a system that aims at reproducing situations close to those found in oil wells, in relation to the thermodynamic conditions (pressure and temperature), and the fluids present (by means of the chemical species involved), aiming at representing in a more realistic way the production scenarios to be faced. The main scope is to represent on a laboratory scale the phenomenon of depressurization with the release of carbon dioxide inducing the precipitation of calcite (calcium carbonate), the growth and agglomeration of inorganic crystals, and the phenomena of adhesion and scale on common metallic surfaces of elements of completion of oil wells.

System for evaluation of the precipitation, adhesion and inorganic scale

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Rio de Janeiro, Brazil

Andre Leibsohn Martins