Análise da adsorção de tensoativo catiônico em rocha calcária
The current scenario of the offshore oil industry in Brazil is marked by major discoveries such as the pre-salt, where there is an expansion of sea explorations. For instance, the pre-salt layer, which expanded the sea explorations. Nevertheless, it brings within several challenges, and creates oppo...
Na minha lista:
| Autor principal: | |
|---|---|
| Outros Autores: | |
| Formato: | bachelorThesis |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
|
| Assuntos: | |
| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/39526 |
| Tags: |
Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
|
| Resumo: | The current scenario of the offshore oil industry in Brazil is marked by major discoveries such as the pre-salt, where there is an expansion of sea explorations. For instance, the pre-salt layer, which expanded the sea explorations. Nevertheless, it brings within several challenges, and creates opportunities in the technological and scientific areas. That’s because most of these discoveries are made in carbon reservoirs, that shows a great level of heterogeneity and peculiar wettability, in which the rock can be set oil-wettable, making the oil recovery by water injection more difficult. Hence it is necessary innovative techniques and advanced studies of the issues involved for a satisfying development of the offshore activities and a potential increase of the oil production. Nowadays an indicated enhanced oil recovery for these conditions it is the injection of surfactant solution. The aim of these method is to reverse the wettability of the rock so that it becomes water-wettable, thus, increasing the mobility of the oil and the production, since it decreases the interfacial tension among the fluids in the rock pores. The purpose of this study is to analyse the cationic surfactant adsorption in limestones to learn if it is possible its application as an injection fluid for enhanced oil recovery, at concentrations of 0,8596 g/l below the c.m.c and 1,2279 g/l e 1,5964 g/l above the c.m.c dissolved in KCL 2%. The method used was the finite bath, at a temperature of 30ºC varying the calcareous mass and applying the adsorption isotherms Langmuir and Freundlich. From the results, it was verified that the solutions of CTAB, in the studied concentrations, did not fit to any of the adsorption models applied. Therefore, the application of other models should be studied. |
|---|