The influence of oil well on the water generation from the potiguar basin/Brazil/A influencia dos pocos de petroleo na geracao de agua na bacia potiguar/Brasil

• Published in: Acta scientiarum. Technology Vol. 40; no. 1
• Main Authors: de Assuncao, Marcus Vinicius Dantas, Vieira, Marcela Marques, de Almeida, Mariana Rodrigues
• Format: Journal Article
• Language: Spanish
• Published: Universidade Estadual de Maringa 01.01.2018
• Subjects: Brasil
• ISSN: 1806-2563; 1807-8664
• DOI: 10.4025/actascitechnol.v40i1.38403

The geometry of oil wells can be decisive for the generation of undesirable residues in the oil and gas production. One of these residues is the produced water, which has increased its volume in the oil fields, becoming a great environmental challenge for the fields managers. Therefore, the objective of this research is to analyze the influence of oil wells types in the generation of produced water. The research was developed in 80 onshore oilfields, in production phase, at the Potiguar basin, considering the years 2014, 2015 and 2016. A conceptual model was formulated with three hypotheses, using multivariate regressions. The results indicated an increasing average of 0.5% (2014 and 2015) in the produced water volume, when 1 vertical well was added to the project; and 1.91% (2016) for each directional well introduced in the project. The age of the field was the most influential variable in the research, reaching, in the year 2015, an effect of 13.7% on the produced water generation. Keywords: oilfields; production water; multivariate regression; geometry; onshore. A geometria dos pocos de petroleo pode ser decisiva quanto a geracao de residuos indesejaveis na producao de petroleo e gas. Um desses residuos e a agua produzida que tem aumentando seu volume nos campos petroliferos e se tornado um grande desafio ambiental para os gestores desses campos. O objetivo desta pesquisa e analisar a influencia dos tipos de pocos petroliferos na geracao de agua produzida. Esta pesquisa foi desenvolvida em 80 campos de petroleo onshore, em fase de producao, na bacia potiguar, considerando os anos de 2014, 2015 e 2016. Formulou-se um modelo conceitual composto por tres hipoteses, utilizando-se das regressoes multivariadas. Os resultados apontam para um aumento de 0,5% (2014 e 2015) no volume de agua produzida, em media, quando acrescido um poco vertical no projeto e de 1,91% (2016) para cada poco direcional incrementado no projeto. A idade do campo revelou-se a variavel de maior influencia na pesquisa, alcancando, no ano de 2015, o efeito de 13,7% sobre a geracao de agua produzida. Palavras-chave: campos de petroleo; agua produzida; regressao multivariada; geometria; onshore.