Combined fluid temperature and flow logging for the characterization of hydraulic structure in a fractured karst aquifer

Chatelier, Marion; Ruelleu, S.; Bour, Olivier; Porel, Gilles; Delay, Frédérick

doi:10.1016/j.jhydrol.2011.01.051

Cited by 38 publications

(21 citation statements)

References 27 publications

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“…They control the hydrodynamic properties of an aquifer as well as the transport of solutes and the dispersal of contaminants. Several methods can help determining the variability of permeability, or imaging the structure of the main flow zones in an aquifer around boreholes; these include geophysical and imaging logs, fluid logs-particularly temperature, conductivity and flow logs-as well as packer tests (Keys, 1990; Barton et al, 1995;Paillet and Pedler, 1996;Berkowitz, 2002;Schurch and Buckley, 2002;Maréchal et al, 2004;Kumar et al, 2007;Le Borgne et al, 2007;Chatelier et al, 2011;Dewandel et al, 2012). Whatever the geological context, the use of hydrochemical logging is less common, but has proved relevant for characterizing a heterogeneous aquifer (Schurch and Buckley, 2002;Schurch and Vuataz, 2002).…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical borehole logs characterizing fluoride contamination in a crystalline aquifer (Maheshwaram, India)

Pauwels

Négrel

Dewandel³

et al. 2015

Journal of Hydrology

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Section: Introductionmentioning

confidence: 99%

Hydrochemical borehole logs characterizing fluoride contamination in a crystalline aquifer (Maheshwaram, India)

Pauwels

Négrel

Dewandel³

et al. 2015

Journal of Hydrology

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“…The assessment of temperature data might allow for several different interpretations and lead to contradictory conclusions. Therefore Chatelier et al (2011) recommend a verification of the outcomes of temperature log analysis with flow meter logs.…”

Section: Borehole Temperature Loggingmentioning

confidence: 99%

In-situ coal seam and overburden permeability characterization combining downhole flow meter and temperature logs.

Busse¹,

Scheuermann²,

Bringemeier³

et al. 2016

Contemporary Trends in Geoscience

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The planning and design of any coal mine development requires among others a thorough investigation of the geological, geotechnical and hydrogeological subsurface conditions. As part of a coal mine exploration program we conducted heat pulse vertical flow meter testing. The flow data were combined with absolute and differential temperature logging data to gain information about the hydraulic characteristics of two different coal seams and their over-and interburden. For the strata that were localised based on geophysical logging data including density, gamma ray and resistivity hydraulic properties were quantified. We demonstrate that the temperature log response complements the flow meter log response. A coupling of both methods is therefore recommended to get an insight into the hydraulic conditions in a coal seam and its overburden.

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“…For instance, the vertical distribution and interconnectivity of fractures in wellbores can be well-described by coupling flow and passive temperature measurements. Such examples are given by Chatelier et al [26] and Le Borgne et al [27], who have explicitly pointed out the advantage of combining passive temperature and flowmeter logs, where the passive temperature log gives the precise depth at which inflow occurs, and the flow log gives a precise measurement of the flow rate in the interval between inflow and outflow zones. Discussions of groundwater origin from identified fractures are also found in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…Discussions of groundwater origin from identified fractures are also found in the literature. One such example is also provided by Chatelier et al [26], by coupling passive temperature measurement and flow logs with elaborate in situ data. Other recent technical advances make it possible to measure instantaneous temperature profiles using optical fiber.…”

Section: Introductionmentioning

confidence: 99%

High-Resolution Wellbore Temperature Logging Combined with a Borehole-Scale Heat Budget: Conceptual and Analytical Approaches to Characterize Hydraulically Active Fractures and Groundwater Origin

et al. 2018

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This work aims to provide an overview of the thermal processes that shape wellbore temperature profiles under static and dynamic conditions. Understanding of the respective influences of advection and conduction heat fluxes is improved through the use of a new heat budget at the borehole scale. Keeping in mind the thermal processes involved, a qualitative interpretation of the temperature profiles allows the occurrence, the position, and the origin of groundwater flowing into wellbores from hydraulically active fractures to be constrained. With the use of a heat budget developed at the borehole scale, temperature logging efficiency has been quantitatively enhanced and allows inflow temperatures to be calculated through the simultaneous use of a flowmeter. Under certain hydraulic or pumping conditions, both inflow intensities and associated temperatures can also be directly modelled from temperature data and the use of the heat budget. Theoretical and applied examples of the heat budget application are provided. Applied examples are shown using high-resolution temperature logging, spinner flow metering, and televiewing for three wells installed in fractured bedrock aquifers in the St-Lawrence Lowlands, Quebec, Canada. Through relatively rapid manipulations, thermal measurements in such cases can be used to detect the intervals or discrete positions of hydraulically active fractures in wellbores, as well as the existence of ambient flows with a high degree of sensitivity, even at very low flows. Heat budget calculations at the borehole scale during pumping indicate that heat advection fluxes rapidly dominate over heat conduction fluxes with the borehole wall. The full characterization of inflow intensities provides information about the distribution of hydraulic properties with depth. The full knowledge of inflow temperatures indicates horizons that are drained from within the aquifer, providing advantageous information on the depth from which groundwater originates during pumping.

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Combined fluid temperature and flow logging for the characterization of hydraulic structure in a fractured karst aquifer

Cited by 38 publications

References 27 publications

Hydrochemical borehole logs characterizing fluoride contamination in a crystalline aquifer (Maheshwaram, India)

Hydrochemical borehole logs characterizing fluoride contamination in a crystalline aquifer (Maheshwaram, India)

In-situ coal seam and overburden permeability characterization combining downhole flow meter and temperature logs.

High-Resolution Wellbore Temperature Logging Combined with a Borehole-Scale Heat Budget: Conceptual and Analytical Approaches to Characterize Hydraulically Active Fractures and Groundwater Origin

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