Experimental study of induced polarization relaxation time spectra of shaly sands

Tong, Maosong; Tao, Honggen

doi:10.1016/j.petrol.2007.04.004

Cited by 11 publications

(6 citation statements)

References 7 publications

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“…As far as we know, there is only one published study that deals with the dependence of relaxation time on temperature. Tong and Tao [2007] carried out time domain IP measurements at temperatures of 25°C, 50°C, and 80°C and inverted the IP response into relaxation time distributions. A decrease of the relaxation times with increasing temperature was found, while the shape of the RTD remains quite similar.…”

Section: Introductionmentioning

confidence: 99%

Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation

Zisser¹,

Kemna²,

Nover³

2010

J. Geophys. Res.

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[1] The possibility to estimate permeability from the electrical spectral induced polarization (SIP) response might be the most important benefit offered by SIP measurements. It can thus be deduced that, in the future, SIP measurements will be carried out more frequently at the field scale or in a well-logging context to estimate permeability. In the shallow subsurface, however, the temperature generally exhibits seasonal variability, and in the deeper subsurface, it usually increases with depth. Hence, knowledge about the dependence of the SIP response on temperature is necessary in order to avoid possible misinterpretation of datasets impacted by thermal effects. In our study, we present a semiempirical framework to describe the temperature dependence of the SIP response. We briefly introduce the SIP response and its relation to permeability in terms of an electrochemical polarization mechanism and combine this formulation with relationships for the dependence of ionic mobility on temperature. We compare the predictions of our formulation with the experimental data from SIP measurements performed on sandstone at temperatures from 0°C to 80°C. The measured SIP response was transformed into a relaxation time distribution, using the empirical Cole-Cole model and a regularized Debye decomposition procedure. The SIP response was found to be in good agreement with the theoretical model. The temperature dependence of both direct current conductivity and relaxation time is controlled mainly by the dependence of ionic mobility on temperature, and the shape of the relaxation time distribution of the investigated sandstone is almost independent of temperature. The temperature effect on the SIP response can therefore be easily corrected.Citation: Zisser, N., A. Kemna, and G. Nover (2010), Dependence of spectral-induced polarization response of sandstone on temperature and its relevance to permeability estimation,

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Section: Introductionmentioning

confidence: 99%

Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation

Zisser¹,

Kemna²,

Nover³

2010

J. Geophys. Res.

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“…Because the polarization magnitude of natural soils is directly related to the amount of available surface area per unit sample (or pore) volume, polarization measurements can be used to estimate specific surface area or clay content in soils (Schön, 1996; Slater et al, 2006; Weller et al, 2010). Temperature can also affect polarization signatures and has been observed in recent studies (Tong and Tao, 2007; Zisser and Kemna, 2010). Temperature can affect polarization through altering ionic activity and charge mobility (Murrmann, 1973) as well as impacting the thickness of the EDL (Grahame, 1947).…”

Section: Electrical Methods and Applications In Permafrost Studiesmentioning

confidence: 60%

Remote Monitoring of Freeze–Thaw Transitions in Arctic Soils Using the Complex Resistivity Method

Hubbard

Ulrich

et al. 2013

Vadose Zone Journal

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Our ability to monitor freeze–thaw transitions is critical to developing a predictive understanding of biogeochemical transitions and carbon dynamics in high latitude environments. In this study, we conducted laboratory column experiments to explore the potential of the complex resistivity method for monitoring the freeze–thaw transitions of the arctic permafrost soils. Samples for the experiment were collected from the upper active layer of Gelisol soils at the Barrow Environmental Observatory (BEO) in Barrow, Alaska. Freeze–thaw transitions were induced through exposing the soil column to controlled temperature environments at 4 and −20°C. Complex resistivity and temperature measurements were collected regularly during the freeze–thaw transitions using electrodes and temperature sensors installed along the column. During the experiments, over two orders of magnitude of resistivity variations were observed when the temperature was increased or decreased between −20 and 0°C. Smaller resistivity variations were also observed during the isothermal thawing or freezing processes that occurred near 0°C. Single frequency electrical phase response and imaginary conductivity at 1 Hz were found to be exclusively related to the unfrozen water in the soil matrix, suggesting that these geophysical attributes can be used as a proxy for the monitoring of the onset and progression of the freeze–thaw transitions. Spectral electrical responses and fitted Cole–Cole parameters contained additional information about the freeze–thaw transition affected by the soil grain size distribution. Specifically, a shift of the observed spectral response to lower frequency was observed during the isothermal thawing process, which we interpret to be due to sequential thawing, first from fine particles and then to coarse particles within the soil matrix. Our study demonstrates the potential of the complex resistivity method for remote monitoring of freeze–thaw transitions in arctic soils. Although conducted at the laboratory scale, this study provides the foundation for exploring the potential of the complex resistivity signals for monitoring spatiotemporal variations of freeze–thaw transitions over field‐relevant scales.

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“…Surprisingly, as far as we know, the temperature dependence of complex conductivity spectra of porous materials with disseminated ores has never been explored. Several works have focused on the temperature dependence of the complex conductivity of porous materials with no metallic particles (Vinegar and Waxman, 1984;Tong and Tao, 2007;Binley et al, 2010;Zisser et al, 2010;Bairlein et al, 2016). This dependence is fairly well-explained by the current model of the dynamic Stern layer model with a mobility of the charge carriers depending on temperature according to either a linear or an Arrhenius law (e.g., Zisser et al, 2010;, Table 1.…”

Section: Introductionmentioning

confidence: 93%

Induced polarization response of porous media with metallic particles — Part 8: Influence of temperature and salinity

et al. 2018

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We have investigated the influence of temperature and salinity upon the spectral induced polarization of 10 samples including rocks with their mineralization (galena, chalcopyrite) plus sand mixed with semiconductors such as magnetite grains, graphite, and pyrite cubes of two different sizes. Measurements are made in a temperature-controlled bath with a high-precision impedance meter and using NaCl solutions. We cover the temperature range 5°C−50°C and the frequency range [Formula: see text] to 45 kHz. For one large pyrite cube, we also investigated six salinities from 0.1 to [Formula: see text] (at 25°C, NaCl) and three salinities for graphite. The spectra are fitted with a Cole-Cole complex parametric conductivity model for which we provide a physical meaning to the four Cole-Cole parameters. As expected, the Cole-Cole exponent and the chargeability are independent of the temperature and salinity. The instantaneous and steady state (direct current [DC]) conductivities depend on the salinity and temperature. This temperature dependence can be fitted with an Arrhenius law (combining the Stokes-Einstein and Vogel-Fulcher-Tammann equations) with an activation energy in the range of [Formula: see text]. This activation energy is the same as for the bulk pore-water conductivity demonstrating the control by the background electrolyte of these quantities, as expected. The instantaneous and DC conductivities depend on the salinity in a predictable way. The Cole-Cole relaxation time decreases with the temperature and decreases with the salinity. This behavior can be modeled with an Arrhenius law with an apparent activation energy of [Formula: see text]. A finite-element model is used further to analyze the mechanisms of polarization, and it can reproduce the temperature and salinity dependencies observed in the laboratory.

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Experimental study of induced polarization relaxation time spectra of shaly sands

Cited by 11 publications

References 7 publications

Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation

Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation

Remote Monitoring of Freeze–Thaw Transitions in Arctic Soils Using the Complex Resistivity Method

Induced polarization response of porous media with metallic particles — Part 8: Influence of temperature and salinity

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