Analysis of thermal dilution experiments with distributed temperature sensing for fractured rock characterization

Klepikova, Maria; Brixel, Bernard; Roubinet, Delphine

doi:10.1016/j.jhydrol.2022.127874

Cited by 6 publications

(3 citation statements)

References 40 publications

(70 reference statements)

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“…[8] Estimation of groundwater recharge using a stable isotope as an artificial tracer in a soil environment [102] Limitations of environmental tracer for estimating groundwater age [103] Hydrological processes at the soil-vegetation-atmosphere interface with water stable isotopes [104] Behavior of tritium in freshwater lens groundwater systems [41] Chemical Cobalt-60 complexes as tracers for groundwater [105] Large scale tracer experiment on the role of the spatial variability of the hydraulic conductivity on dispersion [106] Groundwater flow velocity estimated based on contact resistance during a saltwater tracer experiment [107] Measuring groundwater flow velocity within a gravel bed using electrolyte tracers [108] Defining young and old groundwater using geochemical tracers [39] Temperature Review and basics of heat as a tracer in groundwater [11] Using geothermal heat as a tracer for large-scale groundwater flow velocities and determining permeability fields [43] The limitations of using heat as a groundwater tracer to define aquifer properties [109] Heat as a tracer in near surface sediments [110] Design concepts for tracer tomography with heat as a tracer [111] Tracing groundwater fluxes from temperature profiles [12] Thermal dilution experiments using DTS for groundwater flow and thermal properties in low-permeable fractured rock [112] Combinations Comparison of bromide and heat tracers for aquifer characterization [113] Comparison of heat and solute tracers in heterogeneous aquifers [114] Review of the use of environmental tracers in arid-zone hydrology [115] Groundwater surface water interaction Characterization of vadose zone dynamics [116] Comparison of DTS ERT and tracer measurements for quantifying groundwater surface water interaction [117] Estimating the spatial distribution of hydraulic conductivity in a riverbed [118] Mixing of groundwater and surface water during high flow and base flow conditions [119] Salinity Evaluating recharge and saltwater intrusion [120] Aquifer salinity changes in response to tide and storm surges [121] Saline water interface [122] Contaminants or remediation Characte...…”

Section: Appendix Amentioning

confidence: 99%

Measuring Groundwater Flow Velocities near Drinking Water Extraction Wells in Unconsolidated Sediments

Bakx

Bense

Karaoulis

et al. 2023

Water

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Groundwater is an important source of drinking water in coastal regions with predominantly unconsolidated sediments. To protect and manage drinking water extraction wells in these regions, reliable estimates of groundwater flow velocities around well fields are of paramount importance. Such measurements help to identify the dynamics of the groundwater flow and its response to stresses, to optimize water resources management, and to calibrate groundwater flow models. In this article, we review approaches for measuring the relatively high groundwater flow velocity measurements near these wells. We discuss and review their potential and limitations for use in this environment. Environmental tracer measurements are found to be useful for regional scale estimates of groundwater flow velocities and directions, but their use is limited near drinking water extraction wells. Surface-based hydrogeophysical measurements can potentially provide insight into groundwater flow velocity patterns, although the depth is limited in large-scale measurement setups. Active-heating distributed temperature sensing (AH-DTS) provides direct measurements of in situ groundwater flow velocities and can monitor fluctuations in the high groundwater flow velocities near drinking water extraction wells. Combining geoelectrical measurements with AH-DTS shows the potential to estimate a 3D groundwater flow velocity distribution to fully identify groundwater flow towards drinking water extraction wells.

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Section: Appendix Amentioning

confidence: 99%

Measuring Groundwater Flow Velocities near Drinking Water Extraction Wells in Unconsolidated Sediments

Bakx

Bense

Karaoulis

et al. 2023

Water

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“…The thermo-hydro-mechanical coupling of fissured rock mass was researched 15 – 17 . Conduct the distributed thermal research on the characteristics of rock mass 18 . Study the nonlinear heat flow, in-situ stress and heat transfer of the network geometry of fractured geothermal reservoirs 19 , 20 .…”

Section: Introductionmentioning

confidence: 99%

Study on mechanism of effect of flowing water and transferring heat on rock mass temperature in curved fracture

Gao

Zhang

2023

Sci Rep

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Domestically and internationally, the effect of fracture flowing water and transferring heat on the temperature field of surrounding rock in high-level radioactive waste repositories is a popular research area. Compared with straight fracture flowing water and transferring heat, there are few relevant literatures about the heat transfer of curved fracture water flow. Based on the conceptive model of flowing water and transferring heat in curved fractured rock mass, the influence of flowing water and transferring heat in “I”, “L”, "Image missing", and "Image missing" shaped fractures on the temperature field of rock mass is calculated by using discrete element program. The findings indicate that: When the model goes into a stable state under four working conditions, the rock on the x = 0–2 m mostly forms a heat transfer path from left to right; the x = 2–4 m primarily forms a heat transfer path from bottom to top, and the temperature gradient reveals that the isotherm of 40–45 °C is highly similar to the shape of four different fractures, indicating that flowing water and transferring heat in the fracture configuration dominate the temperature field of the right side rock mass. The direction of the flowing water and transferring heat of the fracture exerts a dominant effect on the temperature of the rock mass than the length.

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“…Among all these methods, the most-used method is the pumping test, which gives global estimates of the hydraulic properties of the system and provide information on its transient behavior when interpreting the data with transient-flow solutions (e.g., [9][10][11][12]). When characterizing the vertical heterogeneities of the system is required, for investigating the dispersion of contaminant and planning remediation strategies for instance, additional information can be acquired by downhole well logging measurements including temperature, vertical flow rates, and direct observations with optical and acoustic imaging tools (e.g., [13][14][15]).…”

Section: Introductionmentioning

confidence: 99%

Models and Interpretation Methods for Single-Hole Flowmeter Experiments

Lods

Roubinet

2023

Water

Self Cite

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Subsurface and groundwater flow characterization is of great importance for various environmental applications, such as the dispersion of contaminants and their remediation. For single-hole flowmeter measurements, key characteristics, such as wellbore storage, skin factor heterogeneities, and variable pumping and aquifer flow rates, have a strong impact on the system characterization, whereas they are not fully considered in existing models and interpretation methods. In this study, we develop a new semi-analytical solution that considers all these characteristics in a physics-based consistent manner. We also present two new interpretation methods, the Double Flowmeter Test with Transient Flow rate (DFTTF) and the Transient Flow rate Flowmeter Test (TFFT), for interpreting data collected during single and multiple pumping tests, respectively. These solution and methods are used as follows. (i) The impact of wellbore storage, transient pumping rate, and property heterogeneities on the interpretation of data collected during single pumping tests are studied over 49 two-aquifer cases. (ii) The effect of the skin factor heterogeneity on transmissivity and storativity estimates, as well as the variability range of the (non-unique) corresponding solutions, are analyzed for the interpretation of multiple-pumping experiments. The results presented in this work show the importance of the various properties and processes that are considered, and the need for the new models and methods that are provided.

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Analysis of thermal dilution experiments with distributed temperature sensing for fractured rock characterization

Cited by 6 publications

References 40 publications

Measuring Groundwater Flow Velocities near Drinking Water Extraction Wells in Unconsolidated Sediments

Measuring Groundwater Flow Velocities near Drinking Water Extraction Wells in Unconsolidated Sediments

Study on mechanism of effect of flowing water and transferring heat on rock mass temperature in curved fracture

Models and Interpretation Methods for Single-Hole Flowmeter Experiments

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