INTRAVAL Phase 2, test case. Saline Groundwater Movement in an Erosional Channel Crossing a Salt Dome

2.50
Hdl Handle:
http://hdl.handle.net/10029/255994
Title:
INTRAVAL Phase 2, test case. Saline Groundwater Movement in an Erosional Channel Crossing a Salt Dome
Authors:
Weert FHA van; Hassanizadeh SM
Other Titles:
INTRAVAL fase 2, test case. Zout grondwater stroming door een "rinne" boven een zoutkoepel
Abstract:
Abstract niet beschikbaar

The Gorleben salt dome is overlain by Tertiary and Quaternary sediments, which form a complex hydrogeological system of aquifers and aquitards. In general one can recognize a lower and an upper aquifer both consisting of sand and gravel, and an intermediate clay complex isolating the two aquifers. In this study, the "Weisses Moor" pumping test data are used to obtain information about the hydraulic properties of the Gorleben system. The interpretation of the Weisses Moor pumping test will be carried out in steps of increasing difficulty. This report contains the results of the first step of modelling. It is assumed that the variations in the salt concentration can be neglected and that the porous medium is homogeneous and isotropic. Under such circumstances, the drawdowns observed in the observation wells due to a pumping test can be described by the Theis solution. The AQ-AT code, developed at RIVM, is used to minimize the sum of squared differences between the observed and theoretical drawdown to obtain optimal values of storativity and transmissivity. It appears that there are significant differences between the optimal values calculated for various observation wells. Therefore, the assumptions of homogeneity, isotropy and/or constant salt concentration do not apply. These assumptions will be relaxed in the following modelling steps in order to obtain more satisfactory results.
Issue Date:
31-Aug-1992
URI:
http://hdl.handle.net/10029/255994
Additional Links:
http://www.rivm.nl/bibliotheek/rapporten/725206008.html
Type:
Onderzoeksrapport
Language:
en
Sponsors:
DGM/SVS
Appears in Collections:
RIVM official reports

Full metadata record

DC FieldValue Language
dc.contributor.authorWeert FHA van-
dc.contributor.authorHassanizadeh SM-
dc.date.accessioned2012-12-12T12:57:44Z-
dc.date.available2012-12-12T12:57:44Z-
dc.date.issued1992-08-31-
dc.identifier725206008-
dc.identifier.urihttp://hdl.handle.net/10029/255994-
dc.description.abstractAbstract niet beschikbaarnl
dc.description.abstractThe Gorleben salt dome is overlain by Tertiary and Quaternary sediments, which form a complex hydrogeological system of aquifers and aquitards. In general one can recognize a lower and an upper aquifer both consisting of sand and gravel, and an intermediate clay complex isolating the two aquifers. In this study, the "Weisses Moor" pumping test data are used to obtain information about the hydraulic properties of the Gorleben system. The interpretation of the Weisses Moor pumping test will be carried out in steps of increasing difficulty. This report contains the results of the first step of modelling. It is assumed that the variations in the salt concentration can be neglected and that the porous medium is homogeneous and isotropic. Under such circumstances, the drawdowns observed in the observation wells due to a pumping test can be described by the Theis solution. The AQ-AT code, developed at RIVM, is used to minimize the sum of squared differences between the observed and theoretical drawdown to obtain optimal values of storativity and transmissivity. It appears that there are significant differences between the optimal values calculated for various observation wells. Therefore, the assumptions of homogeneity, isotropy and/or constant salt concentration do not apply. These assumptions will be relaxed in the following modelling steps in order to obtain more satisfactory results.en
dc.description.sponsorshipDGM/SVS-
dc.format.extent34 p-
dc.language.isoen-
dc.relation.ispartofRIVM Rapport 725206008-
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/725206008.html-
dc.subject13nl
dc.subjectgrondwaternl
dc.subjectstromingnl
dc.subjectzoutnl
dc.subjectwiskundig modelnl
dc.subjecttransportnl
dc.subject92-3nl
dc.subjectpompproefnl
dc.subjecttheis methodenl
dc.subjectpumping testnl
dc.subjecttheis method; geohydrologienl
dc.subjectgroundwateren
dc.subjectflowen
dc.subjectsalten
dc.subjectsalt domesen
dc.subjecttransport processesen
dc.subjectmodellingen
dc.subjectgeohydrologyen
dc.titleINTRAVAL Phase 2, test case. Saline Groundwater Movement in an Erosional Channel Crossing a Salt Domeen
dc.title.alternativeINTRAVAL fase 2, test case. Zout grondwater stroming door een "rinne" boven een zoutkoepelnl
dc.typeOnderzoeksrapport-
dc.date.updated2012-12-12T12:57:44Z-
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