Measurement of streaming potential coupling coefficient in sandstones saturated with natural and artificial brines at high salinity

Vinogradov, Jan; Jaafar, Mohd Zaidi; Jackson, Matthew D.

doi:10.1029/2010jb007593

Cited by 127 publications

(285 citation statements)

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“…Highly saline fluids are difficult to handle in a stable fashion, precipitating with small changes in temperature (Vinogradov et al 2010). Furthermore, the values of C sp are so low (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Pozzi 1995a, b, 1997;Alkafeef and Alajmi 2007;Vinogradov et al 2010). Glover et al (2006) collated a database of C sp and ζ determinations as a function of salinity, which is reproduced in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Pride and Morgan 1991;Bolève et al 2007;Revil et al 1999;Jaafar et al 2009;Vinogradov et al 2010) while taking a constant value in the high salinity range (e.g. Johnson et al 1999a, b;Dukhin et al 2005;Jaafar et al 2009;Vinogradov et al 2010). Higher-quality measurements are needed to confirm and improve such relationships, as well as allowing their dependence on other factors such as pH to be studied.…”

Section: Introductionmentioning

confidence: 99%

“…Vinogradov et al 2010), and the latter as a logarithmic relationship with respect to salinity in the medium salinity range (e.g. Pride and Morgan 1991;Bolève et al 2007;Revil et al 1999;Jaafar et al 2009;Vinogradov et al 2010) while taking a constant value in the high salinity range (e.g. Johnson et al 1999a, b;Dukhin et al 2005;Jaafar et al 2009;Vinogradov et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Attempts have been made previously to characterize the medium and high salinity behaviours of both C sp and ζ , the former as a power law with respect to salinity (e.g. Vinogradov et al 2010), and the latter as a logarithmic relationship with respect to salinity in the medium salinity range (e.g. Pride and Morgan 1991;Bolève et al 2007;Revil et al 1999;Jaafar et al 2009;Vinogradov et al 2010) while taking a constant value in the high salinity range (e.g.…”

Section: Introductionmentioning

confidence: 99%

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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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“…Highly saline fluids are difficult to handle in a stable fashion, precipitating with small changes in temperature (Vinogradov et al 2010). Furthermore, the values of C sp are so low (Fig.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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 transient method for measuring the DC streaming potential coefficient of porous and fractured rocks

Walker

Glover

Ruel

2014

J. Geophys. Res. Solid Earth

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High-quality streaming potential coupling coefficient measurements have been carried out using a newly designed cell with both a steady state methodology and a new pressure transient approach. The pressure transient approach has shown itself to be particularly good at providing high-quality streaming potential coefficient measurements as each transient increase or decrease allows thousands of measurements to be made at different pressures to which a good linear regression can be fitted. Nevertheless, the transient method can be up to 5 times as fast as the conventional measurement approaches because data from all flow rates are taken in the same transient measurement rather than separately. Test measurements have been made on samples of Berea and Boise sandstone as a function of salinity (approximately 18 salinities between 10 À5 mol/dm 3 and 2 mol/dm 3 ). The data have also been inverted to obtain the zeta potential. The streaming potential coefficient becomes greater (more negative) for fluids with lower salinities, which is consistent with existing measurements. Our measurements are also consistent with the high-salinity streaming potential coefficient measurements made by Vinogradov et al. (2010). Both the streaming potential coefficient and the zeta potential have also been modeled using the theoretical approach of . This modeling allows the microstructural, electrochemical, and fluid properties of the saturated rock to be taken into account in order to provide a relationship that is unique to each particular rock sample. In all cases, we found that the experimental data were a good match to the theoretical model.

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Induced electromagnetic field by seismic waves in Earth's magnetic field

Gao

Chen

et al. 2014

JGR Solid Earth

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Studied in this article are the properties of the electromagnetic (EM) fields generated by an earthquake due to the motional induction effect, which arises from the motion of the conducting crust across the Earth's magnetic field. By solving the governing equations that couple the elastodynamic equations with Maxwell equations, we derive the seismoelectromagnetic wavefields excited by a single-point force and a double-couple source in a full space. Two types of EM disturbances can be generated, i.e., the coseismic EM field accompanying the seismic wave and the independently propagating EM wave which arrives much earlier than the seismic wave. Simulation of an M w 6.1 earthquake shows that at a receiving location where the seismic acceleration is on the order of 0.1 m/s 2 , the coseismic electric and magnetic fields are on the orders of 1 μV/m and 0.1 nT, respectively, agreeing with the EM data observed in 2008 M w 6.1 Qingchuan earthquake, China, and indicating that the motional induction effect is effective enough to generate observable EM signal. We also simulated the EM signals observed by Haines et al. (2007) which were called the Lorentz fields and cannot be explained by the electrokinetic effect. The result shows that the EM wave generated by a horizontal force can explain the data well, suggesting that the motional induction effect is responsible for the Lorentz fields. The motional induction effect is compared with the electrokinetic effect, showing the overall conclusion that the former dominates the mechanoelectric conversion under low-frequency and high-conductivity conditions while the latter dominates under high-frequency and low-conductivity conditions.

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Measurement of streaming potential coupling coefficient in sandstones saturated with natural and artificial brines at high salinity

Cited by 127 publications

References 48 publications

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

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

A transient method for measuring the DC streaming potential coefficient of porous and fractured rocks

Induced electromagnetic field by seismic waves in Earth's magnetic field

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