Avaliação de diversos poços tubulares profundos da região noroeste do estado de São Paulo
Carregando...
Data
2019-08-30
Autores
Bueno, Arthur Renato de Assis
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
Este trabalho identificou, mapeou e avaliou diversos parâmetros relacionados a poços tubulares profundos da região noroeste do estado de São Paulo. Foram analisados: aquíferos explorados, profundidades, evolução das perfurações, vazões médias, vazões específicas, transmissividades, níveis dinâmicos e estáticos, espessura dos aquíferos, horas de funcionamento, custos e eficiência energética. Foram analisados dados de 331 poços localizados em 83 municípios divididos nas regiões de: Lins, Fernandópolis, Jales, Novo Horizonte e Monte Alto. As ferramentas aplicadas para análises foram as estatísticas, através de tabelas e gráficos do Microsoft Excel e mapas temáticos georreferenciados através do ArcGis. Alguns dos resultados obtidos foram: a idade média dos poços é de 32 anos; o maior número de perfurações ocorreu entre as décadas de 70 e 80; as medianas das vazões específicas por aquíferos resultaram em: Bauru (1,13 m3/h.m), Serra Geral (1,74 m3/h.m), Guarani (5,65 m3/h.m) e Passa Dois (6,16 m3/h.m); as medianas das transmissividades por aquíferos resultaram em: Bauru (29,69 m2/s), Serra Geral (29,77 m2/s), Guarani (162,24 m2/s) e Passa Dois (189,87 m2/s). Os desvios padrões da maioria dos parâmetros resultaram bastante altos. Os resultados mostraram que é grande a dificuldade de se fazer uma previsão acertada dos valores dos parâmetros que o poço apresentará. Isto se deve à grande variabilidade de origens e evoluções das formações. Porém, com a disponibilização de informações de poços já perfurados, é possível a organização de um banco de dados e de mapeamentos georeferenciados que auxiliarão a execução de projetos de poços com mais segurança e com previsões mais acertadas.
This work identified, mapped and evaluated several parameters related to deep tubular wells in the northwest region of the state of. The following were analyzed: explored aquifers, depths, perforation evolution, average flow rates, specific flow rates, transmissivity, dynamic and static levels, aquifer thickness, operating hours, costs and energy efficiency. Data from 331 wells located in 83 municipalities divided in the regions of: Lins, Fernandópolis, Jales, Novo Horizonte and Monte Alto were analyzed. The tools applied for analysis were the statistics, through tables and graphs of Microsoft Excel and thematic maps georeferenced through ArcGis. Some of the results obtained were: the average age of the wells is 32 years old; the largest number of perforations occurred between the 70's and 80's; median specific flow rates by aquifers resulted in: Bauru (1,13 m3/hm), Serra Geral (1,74 m3/hm), Guarani (5,65 m3/hm) and Passa Dois (6,16 m3/h.m); the median of the aquifer transmissivity resulted in: Bauru (29,69 m2/s), Serra Geral (29,77 m2/s), Guarani (162,24 m2/s) and Passa Dois (189,87 m2/s). The standard deviations of most parameters turned out to be quite high. The results showed that it is very difficult to make a correct prediction of the parameter values that the well will present. This is due to the great variability of origins and evolution of the formations. However, by providing information from wells already drilled, it is possible to organize a database and georeferenced mappings that will help the execution of well projects with more security and better predictions.
This work identified, mapped and evaluated several parameters related to deep tubular wells in the northwest region of the state of. The following were analyzed: explored aquifers, depths, perforation evolution, average flow rates, specific flow rates, transmissivity, dynamic and static levels, aquifer thickness, operating hours, costs and energy efficiency. Data from 331 wells located in 83 municipalities divided in the regions of: Lins, Fernandópolis, Jales, Novo Horizonte and Monte Alto were analyzed. The tools applied for analysis were the statistics, through tables and graphs of Microsoft Excel and thematic maps georeferenced through ArcGis. Some of the results obtained were: the average age of the wells is 32 years old; the largest number of perforations occurred between the 70's and 80's; median specific flow rates by aquifers resulted in: Bauru (1,13 m3/hm), Serra Geral (1,74 m3/hm), Guarani (5,65 m3/hm) and Passa Dois (6,16 m3/h.m); the median of the aquifer transmissivity resulted in: Bauru (29,69 m2/s), Serra Geral (29,77 m2/s), Guarani (162,24 m2/s) and Passa Dois (189,87 m2/s). The standard deviations of most parameters turned out to be quite high. The results showed that it is very difficult to make a correct prediction of the parameter values that the well will present. This is due to the great variability of origins and evolution of the formations. However, by providing information from wells already drilled, it is possible to organize a database and georeferenced mappings that will help the execution of well projects with more security and better predictions.
Descrição
Palavras-chave
Água subterrânea, Hidrogeologia, Poços tubulares profundos, Underground water, Hidrogeologic, Deep tubular wells