Now showing items 20-39 of 39

  • Geomechanical stability of the caprock during CO2 sequestration in deep saline aquifers 

    Vilarrasa Riaño, Víctor; Olivella Pastallé, Sebastià; Carrera Ramírez, Jesús (2011)
    Article
    Open Access
    Sequestration of carbon dioxide (CO2) in deep saline aquifers has emerged as a mitigation strategy for reducing greenhouse gas emissions to the atmosphere. The large amounts of supercritical CO2 that need to be injected ...
  • Groundwater modelling in the urban area of Barcelona 

    Vázquez Suñé, Enric; Carrera Ramírez, Jesús; Sánchez Vila, Francisco Javier; Abarca Cameo, Elena; Arandes Renú, Ramon (Springer, 2005)
    Part of book or chapter of book
    Open Access
  • Impacts of cold CO2 injection in deep saline aquifers on the rock mechanical integrity. 

    Vilarrasa Riaño, Víctor; Carrera Ramírez, Jesús; SILVA, ORLANDO; Olivella Pastallé, Sebastià (2013)
    Conference report
    Restricted access - publisher's policy
    Injecting CO2 into aquifers at depths greater than 800 m brings CO2 to a supercritical state where its density is large enough to ensure an efficient use of pore space. However, CO2 may not be in thermal equilibrium with ...
  • Modeling evaporation processes in a saline soil from saturation to oven dry conditions 

    Gran Esforzado, Meritxell; Carrera Ramírez, Jesús; Olivella Pastallé, Sebastià; Saaltink, Maarten Willem (2011)
    Article
    Open Access
    Thermal, suction and osmotic gradients interact during evaporation from a salty soil. Vapor fluxes become the main water flow mechanism under very dry conditions. A coupled nonisothermal multiphase flow and a reactive ...
  • Modelling a large oil spill in the aquifer of the Llobregat Lower Valley, Barcelona 

    Custodio Gimena, Emilio; Carrera Ramírez, Jesús; Sánchez Vila, Francisco Javier; Medina Sierra, Agustín; Manzano Arellano, María del Sol; Galarza López, German (European Center for Pollution research, 1993)
    Conference report
    Restricted access - publisher's policy
    About 70 m3 of gasoline were poured as the result of an intentíonal breakdown of a major pipeline along the Lower Llobregat Valley. The main groundwater aquifer of the Barcelona area was affected by the gasoline that was ...
  • Multicomponent reactive transport in multicontinuum media 

    Donado, Leonardo David; Sánchez Vila, Francisco Javier; Dentz, Marco; Carrera Ramírez, Jesús; Bolster, Diogo (2009)
    Article
    Open Access
    Multicomponent reactive transport in aquifers is a highly complex process, owing to a combination of variability in the processes involved and the inherent heterogeneity of nature. To date, the most common approach is to ...
  • Numerical formulation for a simulator (CODE_BRIGHT) for the coupled analysis of saline media 

    Olivella Pastallé, Sebastià; Gens Solé, Antonio; Carrera Ramírez, Jesús; Alonso Pérez de Agreda, Eduardo (MCB University Press, 1996)
    Article
    Open Access
    Salt rocks are being considered as potential recipients for geologic disposal of nuclear waste because of their favourable hydraulic and mechanical properties. In essence, processes controlling the behaviour of salt rocks ...
  • Occurrence of carbamazepine and five metabolites in an urban aquifer 

    Jurado Elices, Anna; López Serna, Rebeca; Vázquez Suñé, Enric; Carrera Ramírez, Jesús; Pujades Garnes, Estanislao; Petrovic, Mira; Barceló Culleres, Damià (2014-11-01)
    Article
    Restricted access - publisher's policy
    This paper deals with urban groundwater contaminated with carbamazepine (CBZ) and five of its human metabolites in Barcelona. Groundwater samples were accordingly collected in the aquifers of Poble Sec and Besos River ...
  • Radionuclide migration: coupling transport and chemistry 

    Carrera Ramírez, Jesús; Ayora Ibáñez, Carlos; Saaltink, Maarten Willem; Dentz, Marco (Woodhead Publishing Limited, 2012)
    Part of book or chapter of book
    Restricted access - publisher's policy
  • Salinity is reduced below the evaporation front during soil salinization 

    Gran Esforzado, Meritxell; Carrera Ramírez, Jesús; Olivella Pastallé, Sebastià; Massana, Jordi; Saaltink, Maarten Willem; Ayora Ibáñez, Carlos; Lloret Morancho, Antonio (2009-11-01)
    Conference report
    Open Access
    La salinización de suelos es un problema global. Generalmente, la salinización es causada por el transporte de sales hacia la superficie por capilaridad y, a pesar de su importancia global, los mecanismos que la controlan ...
  • Semianalytical solution for CO2 plume shape and pressure evolution during CO2 injection in deep saline formations 

    Vilarrasa Riaño, Víctor; Carrera Ramírez, Jesús; Bolster, Diogo; Dentz, Marco (2013-01-16)
    Article
    Restricted access - publisher's policy
    The injection of supercritical carbon dioxide (CO2) in deep saline aquifers leads to the formation of a CO2 rich phase plume that tends to float over the resident brine. As pressure builds up, CO2 density will increase ...
  • Stochastic simulation of daily rainfall fields conditioned on atmospheric circulation patterns and orographic effects. 

    Sapriza Azuri, Gonzalo; Jódar Bermúdez, Jorge; Gupta, Hoshi V.; Carrera Ramírez, Jesús (Universitat Politècnica de València, 2012)
    Conference report
    Open Access
    The objective of the current work is to present a methodology for simulation of stochastic spatial distributed rainfall fields at the daily time step. For this purpose, we develop a geo-stochastic rainfall generating process ...
  • Stochastic simulation of nonstationary rainfall fields, accounting for seasonality and atmospheric circulation pattern evolution 

    Sapriza Azuri, Gonzalo; Jódar Bermúdez, Jorge; Carrera Ramírez, Jesús; Gupta, Hoshin Vijai (2013-07-01)
    Article
    Restricted access - publisher's policy
    A model for generating daily spatial correlated rainfall fields suitable for evaluating the impacts of climate change on water resources is presented. The model, termed Stochastic Rainfall Generating Process, is designed ...
  • Temporal scaling of groundwater discharge in dual and multicontinuum catchment models 

    Russian, Anna; Dentz, Marco; Le Borgne, Tanguy; Carrera Ramírez, Jesús; Jiménez Martínez, Joaquín (2013-12-01)
    Article
    Open Access
    This paper presents a multicontinuum approach to model fractal temporal scaling of catchment response in hydrological systems. The temporal scaling of discharge is quantified in frequency domain by the transfer function ...
  • Thermal coupling may control mechanical stability of geothermal reservoirs during cold water injection 

    Simone, Silvia de; Vilarrasa Riaño, Víctor; Carrera Ramírez, Jesús; Alcolea Rodríguez, Andrés; Meier, Peter (2013-01-17)
    Article
    Restricted access - publisher's policy
    Hydraulic stimulation and geothermal reservoir operation may compromise the rock mechanical stability and trigger microseismic events. The mechanisms leading to this induced seismicity are still not completely understood. ...
  • Thermo hydro mechanical modeling of hidraulic simulation in a deep geotermal reservoir 

    De Simone, Silvia; Vilarrasa Riaño, Víctor; Carrera Ramírez, Jesús; Alcolea Rodríguez, Andrés; Meier, Peter (2013)
    Lecture
    Open Access
  • Thermo-hydro-mechanical modeling of geologic carbon storage 

    Vilarrasa, Víctor; Olivella Pastallé, Sebastià; Carrera Ramírez, Jesús (Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica, 2015-06-02)
    Conference report
    Open Access
  • Urban groundwater contamination by residues of UV filters 

    Jurado Elices, Anna; Gago Ferrero, Pablo; Vázquez Suñé, Enric; Carrera Ramírez, Jesús; Pujades Garnes, Estanislao; Díaz Cruz, Sílvia; Barceló Culleres, Damià (2014-04-30)
    Article
    Restricted access - publisher's policy
    The occurrence and fate of UV filters (UV F) in an urban aquifer in correlation with (1) the spatial distribution of UV Fin Barcelona's groundwater, (2) the depth of the groundwater sample, (3) the physicochemical properties ...
  • Use of hydraulic tests to identify the residual CO2 saturation at a geological storage site 

    Martínez Landa, Lourdes; Roetting, Tobias Stefan; Carrera Ramírez, Jesús; Russian, Anna; Dentz, Marco; Cubillo, Bruno (Elsevier, 2013-11-01)
    Article
    Restricted access - publisher's policy
    Estimating long term capillary trapping of CO2 in aquifers remains a key challenge for CO2 storage. Zhang etal, (2011) proposed a combination of thermal, tracer, and hydraulic experiments to estimate the amount of CO2 ...
  • Use of redundant data to reduce estimation errors in geochemical speciation 

    Gaspari, Francesca de; Saaltink, Maarten Willem; Carrera Ramírez, Jesús; Slooten, Luit Jan (2015-04)
    Article
    Restricted access - publisher's policy
    Speciation is the process of evaluating the concentrations of all the species in a chemical system from equilibrium conditions and measured data such as total concentrations of components, electrical conductivity, pH, redox ...