Estudos hidroquímicos da água produzida de um determinado campo de petróleo da bacia potiguar
Waste generated during the exploration and production of oil, water stands out due to various factors including the volume generated, the salt content, the presence of oil and chemicals and the water associated with oil is called produced water. The chemical composition of water is complex and de...
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| Formato: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/12950 |
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| Resumo: | Waste generated during the exploration and production of oil, water stands out
due to various factors including the volume generated, the salt content, the presence of oil
and chemicals and the water associated with oil is called produced water. The chemical
composition of water is complex and depends strongly on the field generator, because it
was in contact with the geological formation for thousands of years. This work aims to
characterize the hydrochemical water produced in different areas of a field located in the
Potiguar Basin. We collected 27 samples from 06 zones (400, 600, 400/600, 400/450/500,
350/400, A) the producing field called S and measured 50 required parameter divided
between physical and chemical parameters, cations and anions. In hydrochemical
characterization was used as tools of reasons ionic calculations, diagrams and they
hydrochemical classification diagram Piper and Stiff diagram and also the statistic that
helped in the identification of signature patterns for each production area including the
area that supplies water injected this field for secondary oil recovery. The ionic balance
error was calculated to assess the quality of the results of the analysis that was considered
good, because 89% of the samples were below 5% error. Hydrochemical diagrams
classified the waters as sodium chloride, with the exception of samples from Area A,
from the injection well, which were classified as sodium bicarbonate. Through
descriptive analysis and discriminant analysis was possible to obtain a function that
differs chemically production areas, this function had a good hit rate of classification was
85% |
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