Streaming potential measurements: 1. Properties of the electrical double layer from crushed rock samples

Lorne, Benoit; Perrier, Frédéric; Avouac, J. P.

doi:10.1029/1999jb900156

Cited by 151 publications

(182 citation statements)

References 51 publications

(50 reference statements)

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“…Results are relatively similar to that obtained by Lorne et al [1999] for silica-dominated rocks. We found that C is inversely proportional to the pore water conductivity (or salinity) over several orders of magnitude.…”

Section: Magnitude Of the Coupling Coefficientsupporting

confidence: 86%

The volcano‐electric effect

2003

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[1] The formation of a magmatic intrusion at depth is responsible for the formation of various thermohydromechanical (THM) disturbances including the upsurge of shock waves and diffusion of pressure fronts in the volcanic system. We couple electromagnetic theory (Maxwell equations) and thermoporoelasticity (Biot equations) to look at the ground surface electrical signature of these THM disturbances. The nature of this coupling is electrokinetic, i.e., associated with water flow relative to the mineral framework and the drag of the excess of charge located in the vicinity of the pore water/mineral interface (the groundwater flow disturbance being related here to the THM disturbances in drained conditions). A new set of laboratory data shows that the electrokinetic coupling is very substantial in fractured basaltic and volcaniclastic materials, and in scoria with several hundreds of millivolts of electrical potential gradient produced per megapascal of pore fluid pressure variations. Our theoretical analysis predicts the diffusion of electromagnetic disturbances and quasi-static electrical signals. These signals can be used as precursors of a volcanic eruption. Indeed, electromagnetic phenomena recorded at the ground surface of a volcanic system, once properly filtered to remove external contributions, provide a direct and quasi-instantaneous insight into the THM disturbances occurring in the heart of the volcanic structure prior and during a volcanic event. Tomography of the quasi-static electrical field is discussed and applied to self-potential profiles performed at the Piton de la Fournaise volcano during the preparation phase of the March 1998 eruption.

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Section: Magnitude Of the Coupling Coefficientsupporting

confidence: 86%

The volcano‐electric effect

2003

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“…Using these inputs, we have back-calculated the zeta potential for both water and liquid CO 2 flow. We find that the zeta potential calculated for the water / solid case was -3.4 mV, a result within the range of expected values , Lorne et al, 1999, Fagerlund and Heinson, 2002. The calculated zeta potential for the liquid CO 2 flow scenario was found to be -1.7 x 10 -6 mV.…”

Section: Discussionsupporting

confidence: 74%

“…In laboratory investigations, this correction is only applicable for very high fluid sensitivities and negligible for fluid resistivities < ~400 Ω-m (Lorne, et al, 1999). For sandstones, a correction ratio of 0.5 can be assumed for high fluid resistivities (Lorne et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

Investigation of novel geophysical techniques for monitoring CO<sub>2</sub> movement during sequestration. Final report, CRADA

Hoversten¹,

Gasperikova²

2003

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“…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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Streaming potential measurements: 1. Properties of the electrical double layer from crushed rock samples

Cited by 151 publications

References 51 publications

The volcano‐electric effect

The volcano‐electric effect

Investigation of novel geophysical techniques for monitoring CO<sub>2</sub> movement during sequestration. Final report, CRADA

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

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