Streaming potential coupling coefficient of quartz glass bead packs: Dependence on grain diameter, pore size, and pore throat radius

Glover, Paul; Déry, Nicholas

doi:10.1190/1.3509465

Cited by 94 publications

(138 citation statements)

References 49 publications

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“…This is consistent with the theoretical model of (Glover and Déry 2010;Glover et al 2012b) and also implies that low salinity flattening of C sp is more pronounced for rocks with larger formation factors F and electrical tortuosities τ e and hence for smaller connectedness G and connectivities χ (Glover 2010(Glover , 2017. The best example of this behaviour is the comparison of the results for the authigenic overgrowth forms of the Fontainebleau and Lochaline sandstones with respect to their chemically identical detrital forms.…”

Section: Low Salinity Behavioursupporting

confidence: 75%

“…The grain size distribution of crushed offcuts of each sample was measured by laser diffractometry using a Malvern Mastersizer 2000. The theta transformation (Glover and Walker 2009) was then used to calculate the pore size distribution of the rock and hence calculate the pore throat diameter with the method of Glover and Déry (2010). This approach is more accurate than using Xray computed microtomography data.…”

Section: Sample Materialsmentioning

confidence: 99%

“…Second, the spread of C sp at low salinities is also due to the effect of the rock microstructure (Jouniaux and Pozzi 1995b;Glover and Déry 2010;Glover et al 2012b).…”

Section: Introductionmentioning

confidence: 99%

“…[11] mica with NaCl (Will and Nover 1986);[12] sandstone with NaCl (Alkafeef and Alajmi 2007) These high-quality measurements would then allow us answer the questions posed above as well as to provide high-quality experimental data against which the theoretical model of Glover and Déry (2010) and Glover et al (2012b) could be rigorously tested. This paper addresses the questions posed above and reserves the modelling to a forthcoming paper.…”

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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Section: Low Salinity Behavioursupporting

confidence: 75%

Section: Sample Materialsmentioning

confidence: 99%

“…Second, the spread of C sp at low salinities is also due to the effect of the rock microstructure (Jouniaux and Pozzi 1995b;Glover and Déry 2010;Glover et al 2012b).…”

Section: Introductionmentioning

confidence: 99%

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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“…The presence of ions, especially divalent cations such as Mg 2+ , Ca 2+ and Ba 2+. , could significantly reduce the stability due to the compression of the electric double layer 28,50,53 .…”

Section: Nanofluid Stabilitymentioning

confidence: 99%

Nanoparticle-Assisted Water-Flooding in Berea Sandstones

Azmi

Raza

et al. 2016

Energy Fuels

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ABSRACT:The use of nanoparticles (NP) to improve reservoir characterisation or to enhance oil recovery (EOR) has recently received intensive interest; however there are still many un-resolved questions. This work reports a systematic study of the effect of rutile TiO 2 nanoparticle-assisted brine flooding. Rutile ellipsoid TiO 2 nanoparticles were synthesised and stabilised by tri-sodium citrate dehydrate for brine flooding of water-wet Berea sandstone cores. Careful characterisation of the rock samples and nanomaterials before and after the flooding was conducted, and the relative contributions to the modified flooding results from the stabiliser and the nanoparticles of different concentrations were examined. The oil recovery performance was evaluated both at break-through (BT) point and at the end of flooding (~3.2 pore volumes). Nanoparticle migration behavior was also investigated in order to understand the potential mechanisms for oil recovery. The results showed that both nanoparticle transport rate and EOR effect were strongly dependent on the particle concentration. The oil recovery efficiency at the BT point was found to increase at low nanoparticle concentrations but decrease at higher values. A maximum 33% increase of the recovery factor was observed at the BT point for a TiO 2 concentration of 20 ppm, but higher nanoparticle concentrations usually had higher ultimate recovery factors. The presence of oil phase was found to accelerate the particle migration though the core. The discussion of various mechanisms suggested that the improvement in the mobility ratio, possible wettability change and log-jamming effect were responsible for the observed phenomena.

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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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Streaming potential coupling coefficient of quartz glass bead packs: Dependence on grain diameter, pore size, and pore throat radius

Cited by 94 publications

References 49 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

Nanoparticle-Assisted Water-Flooding in Berea Sandstones

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

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