Transport Processes in Porous Media by Self-Potential Method

Giampaolo, Valeria; Calabrese, Daniela; Rizzo, Enzo

doi:10.1155/2016/3951486

Cited by 7 publications

(5 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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].…”

Section: Introductionmentioning

confidence: 99%

Saturation Dependence of the Streaming Potential Coefficient

Jouniaux

Allègre

Toussaint

et al. 2020

Seismoelectric Exploration

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

Saturation Dependence of the Streaming Potential Coefficient

Jouniaux

Allègre

Toussaint

et al. 2020

Seismoelectric Exploration

View full text Add to dashboard Cite

show abstract

“…The electrical potentials resulting from underground conditions of fluid pressure, temperature and salt concentration are the primary source for self-potential distribution in the study area (Arsène et al 2018). SP anomaly increases with increasing ion concentration in the groundwater (Giampaolo et al 2016). Figure 14 shows the spatial distribution of self-potential, and it ranges from -243 to 330 mV.…”

Section: Data Validation Using the Geophysical Methodsmentioning

confidence: 99%

Hydrochemical appraisal of groundwater quality for drinking and irrigation: a case study in parts of southwest coast of Tamil Nadu, India

Stanly

Srinivas

Oliver³

et al. 2021

Appl Water Sci

View full text Add to dashboard Cite

The quality of groundwater standards in Muttom–Mandaikkadu coastal stretch is the focus of the present study, whose coastal aquifers are particularly at risk due to intrusion of marine water. Thirty groundwater samples were scrutinized for the assessment of physical and chemical parameters during January and June. Hydrochemical characteristics were spatially depicted to understand the spatial variations such as (pH, EC, TDS, Na+, K+, Ca2+ and Mg2+, SO42−, HCO3−, and Cl−). Drinking water quality index based on those 11 parameters and irrigation water quality index based on EC, Na%, sodium adsorption ratio and permeability index was used to assess the water quality for drinking and irrigation, respectively. These results demonstrate that dominant hydrochemical facies for groundwater in both months are Na-K-Cl-SO4 type and Ca-Mg-Cl-SO4 type. The USSL diagram endorses that most of the water samples belong to low-medium salinity with low sodium hazards. Cl−/HCO3− ratio indicates that the majority of the samples show low to moderate seawater intrusion in the study area. Additionally, six vertical electrical sounding measuring points (Schlumberger array) were carried out in order to determine the number of the underlying layers, aquifer depths and their thicknesses as well as its influence by the marine water. The geophysical self-potential measurements suggest that the groundwater in the Manavalakurichi area is prone to contamination by seawater intrusion, confirmed by the use of Schlumberger vertical electrical sounding. For better understanding, the subsurface layers were shown in a 2D model using the constructed geoelectrical cross section.

show abstract

“…The SP data is generated from the measurements of naturally occurring electric potentials across two electrodes placed on the earth's surface and the potentials measured during these surveys are small, generally less than 100 millivolts, and may be positive or negative to locate anomalies of interest [20].…”

Section: Basic Concept Of Self-potential Methodsmentioning

confidence: 99%

Detection of the Possible Buried Archeological Targets Using the Geophysical Methods of Ground Penetrating Radar (GPR) and Self Potential (SP), Kom Ombo Temple, Aswan Governorate, Egypt

Yousef¹,

Yousef²,

Abd-ElSalam³

et al. 2020

View full text Add to dashboard Cite

Kom Ombo temple is one of temples which were belted over high plateau close to the River Nile, near to Aswan in Egypt in the Greek-Roman period. The expected archaeological remains in the selected area are the hidden tunnels of the mummified crocodiles. The aim of the present work is to detect any of these tunnels by the application of the (GPR) and (SP) methods. The interpretation of the 10 GPR profiles revealed some locations of possible hidden tunnels. These locations show different contrasts and high amplitudes of the reflected signals, compared to the enclosing soil; also the scattering of the signals is higher than the bed layer in these locations, which may reveal the possible buried mummified crocodile tunnels in the study area. The depths of the possible targets range from 2.0 m to 2.5 m. The SP electric map shows that the study area possesses a range of about 135 mV of the potential differences between the measured stations. The positive response of the SP data is mainly concentrated at the central part of the study area. The relatively weak, negative SP anomalies may be related to moisture in the soil. The positive SP anomalies on the SP electric map display possible significant correlation between them and the inferred tunnel locations from the GPR data. The calculated depths from the SP profiles show significant agreement with that estimated from GPR data depths, which indicate that the SP electric method can be used as a successful tool in detecting buried archaeological remains in support of GPR.

show abstract

Transport Processes in Porous Media by Self-Potential Method

Cited by 7 publications

References 47 publications

Saturation Dependence of the Streaming Potential Coefficient

Saturation Dependence of the Streaming Potential Coefficient

Hydrochemical appraisal of groundwater quality for drinking and irrigation: a case study in parts of southwest coast of Tamil Nadu, India

Detection of the Possible Buried Archeological Targets Using the Geophysical Methods of Ground Penetrating Radar (GPR) and Self Potential (SP), Kom Ombo Temple, Aswan Governorate, Egypt

Contact Info

Product

Resources

About