Time Lapse Tracer and SP Measurements to Characterize the Hydrodynamics of Fractured Granite Aquifer: A Case Study

Rangarajan, R.; Muralidharan, D.; Chandra, Subash; Reddy, D. V.; Andrade, Rolland; Ahmad, Shakeel

doi:10.1007/s12594-014-0100-8

Cited by 5 publications

(4 citation statements)

References 27 publications

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“…Self-potentials rely on electrokinetic coupling and proved to be efficient for characterizing groundwater resources and mapping contamination plumes, since those signals are directly sensitive to hydrological fluxes [Fournier, 1989;Titov et al, 2002;Pinettes et al, 2002;Maineult et al, 2004;Jouniaux et al, 2009;Desroches and Butler, 2016] and solute transport [Maineult et al, 2005;Kabir et al, 2015;Giampaolo et al, 2016]. Self-potentials appeared especially useful to estimate fluid flow [Jouniaux et al, 1999;Sailhac et al, 2004;Rangarajan et al, 2014], to detect propagating vapor-front during oil-extraction processes [e.g., Saunders et al, 2008], to detect hydrothermal flows [Mauri et al, 2010;Brothelande et al, 2014;Gonzales et al, 2014], to map advected reacting redox fronts [Maineult et al, 2006a,b], and to provide a tool to evaluate the evolution of the corrosion of metallic casings [Maineult, 2016]. Self-potentials are also often associated with natural hydrothermal circulation [Ishido and Pritchett, 1999;Matsushima et al, 2000;Jouniaux and Ishido, 2012;Monetti et al, 2014].…”

Section: Introductionmentioning

confidence: 99%

Saturation Dependence of the Streaming Potential Coefficient

Jouniaux

Allègre

Toussaint

et al. 2020

Seismoelectric Exploration

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Observations of streaming potential for unsaturated conditions do not always show the same trend depending on the hydrodynamic conditions and because of a lake of coherency between the data processing procedures. We combine the data from three studies published in the literature, acquired during non-steady state drainage experiments, and apply the same processing steps. We model the hydrodynamic behaviour of these experiments to confirm that they experienced different flow dynamics. We argue that the raw SP data should not be corrected unless a clear drift of the electrodes stability is observed. The combined hydrodynamic behaviour and the streaming potential response show that (a) the observations of one of the experiment (exp #1) are associated to a limited range of water saturation (0.85-1). The corresponding signals could therefore be fairly modelled assuming no saturation dependence of the SPC whatsoever; (b) the observations of exp #3 led to a SPC that can be larger than its value at saturation; (c) the observations of the exp #2 show a non-monotonous behaviour of the SPC as saturation decreases. The underlying physics of a non-monotonous SPC is related to water/air interfaces as shown by the results of the lattice Boltzmann numerical simulations. The main contribution to the SPC behaviour comes from the charged water/air interfaces and depends on the dynamic state of moving or entrapped bubbles. We finally describe the consequences of such a behaviour on the seismoelectric conversions for unsaturated conditions.

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Section: Introductionmentioning

confidence: 99%

Saturation Dependence of the Streaming Potential Coefficient

Jouniaux

Allègre

Toussaint

et al. 2020

Seismoelectric Exploration

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“…As concerns the time-lapse geophysical survey, few studies were performed for monitoring recharge in vadose zone using TL-ERT [2,3]; time-lapse tracer and Self-potential measurements to characterize the hydrodynamics of fractured granite aquifer in southern India [63]; timelapse SP and ERT to map old mine working across railway track in a coalfield [79].…”

Section: Time-lapse Monitoring Of Contamination: Applications and Pro...mentioning

confidence: 99%

Tracking contaminant transport using time-lapse geophysics: A review on applications of electrical methods

Rani

Cassiani

2022

Water Security

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“…Tracer technique is widely adopted to estimate natural recharge in point and catchment scale with merits and demerits (Allison, 1988;Athavale , 1980Athavale , , 1983Athavale , , 1998Rangarajan , 2000Rangarajan , , 2005Rangarajan , , 2009Rangarajan , , 2014bBhanja , 2019). It is also useful in soil moisture transport (Rolland , 2018), groundwater flow rate estimation and direction (Athavale , 1992;Rangarajan , 2014a).…”

Section: Introductionmentioning

confidence: 99%

Understanding Shallow Basaltic Aquifer System Near West Coast of Maharashtra, India

Rangarajan¹,

Andrade²

2023

JGSR

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Two-Dimensional (2D) Electrical Resistivity Tomography (ERT) and geophysical logging and injected tritium tracer studies with hydrogeological tests were carried out at selected location in an area of 5 km2 near the coastal region of Tarapur, Thane district, Maharashtra. The area is in basaltic terrain, overlain by thin cap of alluvium formation and receives an annual rainfall of about 2000 mm. An integrated investigation method was adopted to delineate the subsurface lithological variations, understand the existing aquifer system up to 25 m depth, evaluate aquifer properties, recharge potential and also to monitor the groundwater flow characteristics. The investigation results showed a variable thickness of weathered zone of 1-3 m, existence of two basalt flows, low vertical natural recharge, high transmissivity, high hydraulic conductivity and high groundwater flow rates. The results also depicted that a combination of hydrogeological tests along with resistivity and tracer investigation is an effective tool in mapping and characterizing the shallow potential groundwater aquifer zone in Deccan traps. The integrated study carried out in the coastal area provided detailed subsurface information useful for planning specific water conservation strategies for sustainable groundwater supply. Keywords: Deccan Traps, ERT, Tritium Tracer, Recharge, Groundwater Flow

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Time Lapse Tracer and SP Measurements to Characterize the Hydrodynamics of Fractured Granite Aquifer: A Case Study

Cited by 5 publications

References 27 publications

Saturation Dependence of the Streaming Potential Coefficient

Saturation Dependence of the Streaming Potential Coefficient

Tracking contaminant transport using time-lapse geophysics: A review on applications of electrical methods

Understanding Shallow Basaltic Aquifer System Near West Coast of Maharashtra, India

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