Determination of rock properties by low‐frequency AC electrokinetics

Pengra, David B.; Li, Sidney Xi; Wong, Po‐zen

doi:10.1029/1999jb900277

Cited by 131 publications

(142 citation statements)

References 60 publications

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“…These authors verified on 12 samples of sandstones, limestones and fused glass beads that the electrokinetic permeability k e successfully predicts the rock permeability k r (measured when J e is zero) over a range of about four decades from 10 −15 to 10 −11 m 2 . Pengra et al (1999) verified also this relation on eight samples of sandstone and limestone, and four fused glass beads, in the permeability range 10 −15 to 10 −11 m 2 (Fig. 3).…”

Section: Permeability Predictionsupporting

confidence: 49%

Electrokinetic Techniques for the Determination of Hydraulic Conductivity

Jouniaux¹

2011

Hydraulic Conductivity - Issues, Determination and Applications

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Section: Permeability Predictionsupporting

confidence: 49%

Electrokinetic Techniques for the Determination of Hydraulic Conductivity

Jouniaux¹

2011

Hydraulic Conductivity - Issues, Determination and Applications

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“…(Sprunt et al 1994;Pozzi 1995a, 1997;Li et al 1995;Jiang et al 1998;Pengra et al 1999); [2] sandstone with NaCl as a function of permeability/microstructure (pH5) (Jouniaux and Pozzi 1995b); [3] St. Bees, Stainton, and Fontainebleau sandstones with NaCl (Jaafar et al 2009;Vinogradov et al 2010); [4] sandstone with KCl (Alkafeef and Alajmi 2007); [5] sand with NaCl (Guichet et al 2003;Block and Harris 2006);[6] granite with NaCl (Morgan et al (1989)); [7] glass with NaCl (Pengra et al 1999;Block and Harris 2006);[8] zeolitized tuffs with NaCl (Revil et al 2002);[9] basalt with NaCl (Revil et al 2003 (Tardif et al 2011;Glover et al 2012a).…”

Section: Introductionmentioning

confidence: 99%

“…b [1] Quartz with NaCl (Pride and Morgan (1991)); [2] silica with NaCl (Gaudin and Fuerstenau 1955;Li and Bruyn 1966;Kirby and Hasselbrink 2004);[3] glass beads with NaCl (Bolève et al 2007);[4] St. Bees, Stainton, and Fontainebleau sandstones with NaCl (Jaafar et al 2009;Vinogradov et al 2010);[5] clay minerals with NaCl (Kosmulski and Dahlsten 2006;Avena and Pauli 1998);[6] sandstone with KCl (Lorne et al 1999); [7] quartz with NaCl (Kosmulski et al 2002);[8] kaolin-coated sandstone with NaCl (Pengra et al 1999);[9] tuff samples containing clays and zeolites (Revil et al 2002);[10] kaolinite with NaCl (Poirier and Cases 1985);…”

Section: Introductionmentioning

confidence: 99%

Measurements of the Relationship Between Microstructure, pH, and the Streaming and Zeta Potentials of Sandstones

Walker

Glover

2017

Transp Porous Med

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A large number (1253) of high-quality streaming potential coefficient (C sp ) measurements have been carried out on Berea, Boise, Fontainebleau, and Lochaline sandstones (the latter two including both detrital and authigenic overgrowth forms), as a function of pore fluid salinity (C f ) and rock microstructure. All samples were saturated with fully equilibrated aqueous solutions of NaCl (10 −5 and 4.5 mol/dm 3 ) upon which accurate measurements of their electrical conductivity and pH were taken. These C sp measurements represent about a fivefold increase in streaming potential data available in the literature, are consistent with the pre-existing 266 measurements, and have lower experimental uncertainties. The C sp measurements follow a pH-sensitive power law behaviour with respect to C f at medium salinities (C sp = − 1.44 × 10 −9 C − 1.127 f , units: V/Pa and mol/dm 3 ) and show the effect of rock microstructure on the low salinity C sp clearly, producing a smaller decrease in C sp per decade reduction in C f for samples with (i) lower porosity, (ii) larger cementation exponents, (iii) smaller grain sizes (and hence pore and pore throat sizes), and (iv) larger surface conduction. The C sp measurements include 313 made at C f > 1 mol/dm 3 , which confirm the limiting high salinity C sp behaviour noted by Vinogradov et al., which has been ascribed to the attainment of maximum charge density in the electrical double layer occurring when the Debye length approximates to the size of the hydrated metal ion. The zeta potential (ζ ) was calculated from each C sp measurement. It was found that ζ is highly sensitive to pH but not sensitive to rock microstructure. It exhibits a pH-dependent logarithmic behaviour with respect to C f at low to medium salinities (ζ = 0.01133 log 10 (C f ) + 0.003505, units: V and mol/dm 3 ) and a limiting zeta potential (zeta potential offset) at high salinities of ζ o = − 17.36 ± 5.11 mV in the pH range 6-8, which is also pH dependent. The sensitivity of both C sp and ζ to pH and of C sp to rock microstructure indicates that C sp and ζ measurements can only be interpreted together with accurate and equilibrated measurements of pore fluid conductivity and pH and supporting microstructural and surface conduction measurements for each sample.

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“…Both seismoelectric and electroseismic imaging techniques have been developed for field research [Thompson and Gist, 1993;Mikhailov et al, 1997;Zhu et al, 1999;Garambois and Dietrich, 2001], well logging [Chandler, 1981;Hunt and Worthington, 2000], and modeled numerically [Haartsen and Toksö z, 1996;Pride and Haartsen, 1996;Haartsen and Pride, 1997;Garambois and Dietrich, 2001;White, 2005]; Beamish [1999] provides a useful review of these techniques in seismology. In the context of material characterization, a simplified form of EK-Biot theory was used to study the permeability and pore features of consolidated rock and sandstones at frequencies below 100 Hz [Pengra and Wong, 1995;Pengra et al, 1999], and constant flow rate EK measurements have been performed in unconsolidated sand [Ahmed, 1964].…”

Section: Introductionmentioning

confidence: 99%

Conductivity dependence of seismoelectric wave phenomena in fluid‐saturated sediments

Block¹,

Harris²

2006

J. Geophys. Res.

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[1] Seismoelectric phenomena in sediments arise from acoustic wave-induced fluid motion in the pore space, which perturbs the electrostatic equilibrium of the electric double layer on the grain surfaces. Experimental techniques and the apparatus built to study the conductivity dependence of the electrokinetic (EK) effect are described, and outcomes for studies in loose glass microspheres and medium-grain sand are presented. By varying the NaCl concentration in the pore fluid, we measured the conductivity dependence of two kinds of EK behavior: (1) the electric fields generated within the samples by the passage of transmitted acoustic waves and (2) the electromagnetic waves produced at the fluid-sediment interface by the incident acoustic wave. Both phenomena are caused by relative fluid motion in the sediment pores; this feature is characteristic of poroelastic (Biot) media but is not predicted by either viscoelastic fluid or solid models. A model of plane wave reflection from a fluid-sediment interface using EK-Biot theory leads to theoretical predictions that compare well to the experimental data for both loose glass microspheres and medium-grain sand.Citation: Block, G. I., and J. G. Harris (2006), Conductivity dependence of seismoelectric wave phenomena in fluid-saturated sediments,

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Determination of rock properties by low‐frequency AC electrokinetics

Cited by 131 publications

References 60 publications

Electrokinetic Techniques for the Determination of Hydraulic Conductivity

Electrokinetic Techniques for the Determination of Hydraulic Conductivity

Measurements of the Relationship Between Microstructure, pH, and the Streaming and Zeta Potentials of Sandstones

Conductivity dependence of seismoelectric wave phenomena in fluid‐saturated sediments

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