Use of convolution and geotechnical rock properties to analyze free flowing discharge test

Detalhes bibliográficos
Autor(a) principal: WENDLAND,EDSON
Data de Publicação: 2014
Outros Autores: GOMES,LUIS HENRIQUE, PORTO,RODRIGO M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Anais da Academia Brasileira de Ciências (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100117
Resumo: Discharge tests are conducted in order to determine aquifers transmissivity (T) and storage coefficient (S). However the interpretation of test data is not unique and the results may vary depending on adopted hypothesis. In this work, the convolution technique is applied for the reconstruction of observed drawdown curves aiming for the reduction of uncertainty. The interference between a flowing well and an observation well is evaluated in order to determine the hydrogeological parameters of the confined Guarani Aquifer System (Araujo et al. 1999). Discharge test data are analyzed according to the Jacob and Lohman (1952)method. The application of convolution enabled the determination of the most reliable solution. Obtained transmissivity (T = 411.0 m2/d) and storage coefficient (S = 2.75x10–4) are close to values estimated by direct evaluation of the geotechnical sandstone properties.
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spelling Use of convolution and geotechnical rock properties to analyze free flowing discharge testhydrogeologygroundwatertransmissivitystorage coefficientpumping testDischarge tests are conducted in order to determine aquifers transmissivity (T) and storage coefficient (S). However the interpretation of test data is not unique and the results may vary depending on adopted hypothesis. In this work, the convolution technique is applied for the reconstruction of observed drawdown curves aiming for the reduction of uncertainty. The interference between a flowing well and an observation well is evaluated in order to determine the hydrogeological parameters of the confined Guarani Aquifer System (Araujo et al. 1999). Discharge test data are analyzed according to the Jacob and Lohman (1952)method. The application of convolution enabled the determination of the most reliable solution. Obtained transmissivity (T = 411.0 m2/d) and storage coefficient (S = 2.75x10–4) are close to values estimated by direct evaluation of the geotechnical sandstone properties.Academia Brasileira de Ciências2014-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100117Anais da Academia Brasileira de Ciências v.86 n.1 2014reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/0001-37652014117112info:eu-repo/semantics/openAccessWENDLAND,EDSONGOMES,LUIS HENRIQUEPORTO,RODRIGO M.eng2015-11-10T00:00:00Zoai:scielo:S0001-37652014000100117Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2015-11-10T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false
dc.title.none.fl_str_mv Use of convolution and geotechnical rock properties to analyze free flowing discharge test
title Use of convolution and geotechnical rock properties to analyze free flowing discharge test
spellingShingle Use of convolution and geotechnical rock properties to analyze free flowing discharge test
WENDLAND,EDSON
hydrogeology
groundwater
transmissivity
storage coefficient
pumping test
title_short Use of convolution and geotechnical rock properties to analyze free flowing discharge test
title_full Use of convolution and geotechnical rock properties to analyze free flowing discharge test
title_fullStr Use of convolution and geotechnical rock properties to analyze free flowing discharge test
title_full_unstemmed Use of convolution and geotechnical rock properties to analyze free flowing discharge test
title_sort Use of convolution and geotechnical rock properties to analyze free flowing discharge test
author WENDLAND,EDSON
author_facet WENDLAND,EDSON
GOMES,LUIS HENRIQUE
PORTO,RODRIGO M.
author_role author
author2 GOMES,LUIS HENRIQUE
PORTO,RODRIGO M.
author2_role author
author
dc.contributor.author.fl_str_mv WENDLAND,EDSON
GOMES,LUIS HENRIQUE
PORTO,RODRIGO M.
dc.subject.por.fl_str_mv hydrogeology
groundwater
transmissivity
storage coefficient
pumping test
topic hydrogeology
groundwater
transmissivity
storage coefficient
pumping test
description Discharge tests are conducted in order to determine aquifers transmissivity (T) and storage coefficient (S). However the interpretation of test data is not unique and the results may vary depending on adopted hypothesis. In this work, the convolution technique is applied for the reconstruction of observed drawdown curves aiming for the reduction of uncertainty. The interference between a flowing well and an observation well is evaluated in order to determine the hydrogeological parameters of the confined Guarani Aquifer System (Araujo et al. 1999). Discharge test data are analyzed according to the Jacob and Lohman (1952)method. The application of convolution enabled the determination of the most reliable solution. Obtained transmissivity (T = 411.0 m2/d) and storage coefficient (S = 2.75x10–4) are close to values estimated by direct evaluation of the geotechnical sandstone properties.
publishDate 2014
dc.date.none.fl_str_mv 2014-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100117
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100117
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0001-37652014117112
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências v.86 n.1 2014
reponame:Anais da Academia Brasileira de Ciências (Online)
instname:Academia Brasileira de Ciências (ABC)
instacron:ABC
instname_str Academia Brasileira de Ciências (ABC)
instacron_str ABC
institution ABC
reponame_str Anais da Academia Brasileira de Ciências (Online)
collection Anais da Academia Brasileira de Ciências (Online)
repository.name.fl_str_mv Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)
repository.mail.fl_str_mv ||aabc@abc.org.br
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