<b>The influence of oil well on the water generation from the potiguar basin / Brazil

Abstract

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.A influência dos poços de petróleo na geração de água na bacia potiguar/Brasil RESUMO. A geometria dos poços de petróleo pode ser decisiva quanto à geração de resíduos indesejáveis na produção de petróleo e gás. Um desses resíduos é a água produzida que tem aumentando seu volume nos campos petrolíferos e se tornado um grande desafio ambiental para os gestores desses campos. O objetivo desta pesquisa é analisar a influência dos tipos de poços petrolíferos na geração de água produzida. Esta pesquisa foi desenvolvida em 80 campos de petróleo onshore, em fase de produção, na bacia potiguar, considerando os anos de 2014, 2015 e 2016. Formulou-se um modelo conceitual composto por três hipóteses, utilizando-se das regressões multivariadas. Os resultados apontam para um aumento de 0,5% (2014 e 2015) no volume de água produzida, em média, quando acrescido um poço vertical no projeto e de 1,91% (2016) para cada poço direcional incrementado no projeto. A idade do campo revelou-se a variável de maior influência na pesquisa, alcançando, no ano de 2015, o efeito de 13,7% sobre a geração de água produzida.

Environmental Dynamic Efficiency Of Onshore Oil Fields Located At The Brazilian Coastal Basin

“…(2) The variables chosen to elucidate the problem of linear programming are presented in Figure 1, which exposes the model adopted in the research and the respective inputs (vertical wells, directional wells, field age and Area), intermediate product (volume of oil produced) and outputs (produced water), whose variables were selected from the research developed by Asunção, Vieira & Almeida (2018a, 2018b. Figure 1 -Production model adopted in the research…”