Using a MODFLOW grid, generated with GMS, to solve a transport problem with TOUGH2 in complex geological environments: The intertidal deposits of the Venetian Lagoon

Borgia, Andrea; Cattaneo, Laura; Marconi, D.; Delcroix, C.; Rossi, Eliandra Mirlei; Clemente, G.F.; Amoroso, C. G.; Re, Faflak; Tozzato, E.

doi:10.1016/j.cageo.2010.11.007

Cited by 18 publications

(3 citation statements)

References 5 publications

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“…As the Member One of Yan'an Formation (Tanner et al, 2012), the lithology of BCS mainly included grayish‐white coarse sandstone, medium sandstone and pebbly coarse sandstone, with the thickness ranging from 1.27 to 88.9 m and the average being 38.9 m. To establish the 3D conception model, the module of TPROGS in GMS was introduced and shown in Figure 6. After the analysis of Markov chain (Borgia et al, 2011; G. Chen et al, 2018; Hsieh et al, 2015), it was revealed that the proportion of pebbly, coarse, medium and fine sandstone, siltstone, sandy mudstone, and mudstone were 17.30%, 24.13%, 30.09%, 8.47%, 10.67%, 7.61%, and 1.74%, respectively. Therefore, the coarse and medium sandstone accounted for 71.52% in BCS and became the main reservoir for mine water migration and storage.…”

Section: Resultsmentioning

confidence: 99%

Hydrogeological feasibility of mine water deep geological storage in Baotashan coarse sandstone: A case study in Ordos Basin

Chen

Sun

et al. 2022

Deep Underground Science and Engineering

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For the sake of mine water drainage and sustainable groundwater protection, the new approach of mine water deep geological storage (MWDGS) is highly necessary to save water resources in the semi-arid region of China. However, up to now, little academic research has been done on mine water geological storage. Given this situation, the hydrogeological feasibility of MWDGS was explored in Baotashan coarse sandstone (BCS) of Jurassic measure in Ordos Basin. The results show that the white-gray BCS with a fragile skeleton of quartz (41.4%), feldspar (21.1%), and clay minerals (16.4%) provides the potential variable-void for mine water; and its hydro-chemical type of BCS aquifer is CO 3 -Na and Cl-Na. As the burial depth increases, the strong alkaline groundwater is in stagnant and poor recharge-runoff-discharge condition. The lab test shows that the pores whose diameter is over 10 μm could be treated as the main storage of mine water; and the effective porosity varies from 1.36% to 3.46%. When mine water is injected, the strong hydrodynamics of mine water storage would change the permeability significantly and about 0.201% soluble solids would be dissolved. Partial clay minerals obstruct the pores and induce the saturated phase of high permeability to evolve into steady phase of lower permeability. Under the condition of nonhydraulic fracturing during continuous storage, the heterogeneous anisotropic medium obtained by Transition PRObability GeoStatistics (TPROGS) shows that the capacity of BCS aquifer is 0.455 to 1.226 Mm 3 for 1 km 2 in the study area. The simulation shows that the groundwater mound in well-scale and mine-scale would be formed. The groundwater quality characteristics of "Three Zone" would occur around and gradually drop to approximate the original brine within 10 years. The hydrogeological feasibility reveals that this approach is useful for the well design and groundwater environment management during the mine water deep geological storage project in the Ordos basin.

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Section: Resultsmentioning

confidence: 99%

Hydrogeological feasibility of mine water deep geological storage in Baotashan coarse sandstone: A case study in Ordos Basin

Chen

Sun

et al. 2022

Deep Underground Science and Engineering

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“…There is a close hydraulic connection between the different aquifer layers; thus, sandy layers were selected as the target aquifers. The aquifers are generalized into a heterogeneous anisotropic porous medium, according to the strata characteristics framed by sedimentology (Borgia et al 2011;Mengistu et al 2019;Sathe and Mahanta, 2019). For calibration purpose, we collected observation data of the groundwater level and comprehensively analyzed the groundwater flow field.…”

Section: Hydrogeological Conceptual Modelmentioning

confidence: 99%

Influence of underground space development mode on the groundwater flow field in Xiong’an new area

Gao¹,

Shen²,

Chen³

et al. 2023

Journal of Groundwater Science and Engineering

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The degree and scale of underground space development are growing with the continuous advancement of urbanization in China. The lack of research on the change of the groundwater flow field before and after the development of underground space has led to various problems in the process of underground space development and operation. This paper took the key development zone of the Xiong'an New Area as the study area, and used the Groundwater modeling system software (GMS) to analyse the influence on the groundwater flow field under the point, line, and surface development modes. The main results showed that the underground space development would lead to the expansion and deepening of the cone of depression in the aquifer. The groundwater level on the upstream face of the underground structure would rise, while the water level on the downstream face would drop. The "line" concurrent development has the least impact on the groundwater flow field, and the maximum rise of water level on the upstream side of the underground structure is expected to be approximately 3.05 m. The "surface" development has the greatest impact on the groundwater flow field, and the maximum rise of water level is expected to be 7.17 m.

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“…This approach is implemented using a transient model of groundwater flow, similar to Schwartz et al [23]. Here, the modeling is performed with the well-known U.S. Geological Survey (USGS) code MODFLOW-2005 [24], as implemented in GMS9.2 groundwater flow model [25][26][27][28][29]. MODFLOW-2005 is a 3-D, finite-difference, groundwater model for flow with capabilities for modeling surface water interactions.…”

Section: Modeling Approachmentioning

confidence: 99%

Quantifying the Response Time of a Lake–Groundwater Interacting System to Climatic Perturbation

Gong

Liu

Schwartz

2015

Water

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Abstract:Response time, describing how quickly a disturbed system would reach a new equilibrium, has been helpful to hydrogeologists in characterizing and understanding the hydrogeological systems. This study examined the complex response times associated with lake-groundwater perturbed by climate. Simulated hydraulic heads and lake stage values derived from a 3-D, MODFLOW-based model were used to calculate the response times for a closed, groundwater-fed lake system. Although obviously coupled, the response times of the lake and groundwater systems were different from one another. Typically, the adjustments in hydraulic heads occurred more rapidly than lake stage. Response times for groundwaters close to the lake were controlled by the lake because of the slow transient response in stage. However, the influence of the lake declined toward the basin boundaries. This behavior occurred because critical parameters controlling the response-time behavior of the groundwater system (e.g., recharge rate) differed from those controlling the response-time behavior of the lake (e.g., bed leakance). An improved understanding of lake-groundwater behaviors have the potential to evaluate how lakes function as systems for recording paleoclimates.

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Using a MODFLOW grid, generated with GMS, to solve a transport problem with TOUGH2 in complex geological environments: The intertidal deposits of the Venetian Lagoon

Cited by 18 publications

References 5 publications

Hydrogeological feasibility of mine water deep geological storage in Baotashan coarse sandstone: A case study in Ordos Basin

Hydrogeological feasibility of mine water deep geological storage in Baotashan coarse sandstone: A case study in Ordos Basin

Influence of underground space development mode on the groundwater flow field in Xiong’an new area

Quantifying the Response Time of a Lake–Groundwater Interacting System to Climatic Perturbation

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