Predictive surface complexation model of the calcite-aqueous solution interface: The impact of high concentration and complex composition of brines

Vinogradov, Jan; Hidayat, Miftah; Sarmadivaleh, Mohammad; Derksen, J. J.; Vega‐Maza, David; Iglauer, Stefan; Jougnot, Damien; Azaroual, Mohamed; Leroy, Philippe

doi:10.1016/j.jcis.2021.11.084

Cited by 15 publications

(17 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effect of higher ionic strength (above 2 M) on the assembled TLM also needs further investigation. Initial modeling efforts by Vinogradov et al 84 have all shown the added advantage of using the TLM for modeling the electrokinetic interactions of a high ionic strength brine solution. It should be noted that this TLM assembled herein against experimental data in the literature serves as a first step in the development of a more rigorous electrostatic model.…”

Section: Resultsmentioning

confidence: 99%

“… where σ i and ψ i represent the charge density (C/m 2 ) and the potential (mV), respectively, at plane i . The potential at the 0-plane (ψ o ) and 2-plane (ψ 2 ) corresponds to the surface potential and the ζ-potential based on the similar assumption by Takeya et al ,, For the calcite–brine interface, C 1 and C 2 were assumed to be 1.3 and 4.5 F/m 2 , respectively. , C 1 and C 2 of 3.1 and 2.25 F/m 2 , respectively, were assumed for the oil–brine interface similar to the approach adopted by Takeya et al Vinogradov et al developed a relationship that showed the dependence of the capacitance value to the ionic strength of the brine used. In this work, since the ionic strengths of the brines used were in the range of seawater (∼1.1 M), it was justifiable to use a constant capacitance for the calculations.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Ionic Interactions at the Crude Oil–Brine–Rock Interfaces Using Different Surface Complexation Models and DLVO Theory: Application to Carbonate Wettability

2022

View full text Add to dashboard Cite

The impact of ionic association with the carbonate surface and its influence toward carbonate wettability remains unclear and is an important topic of interest in the current literature. In this work, a triple layer model (TLM) approach was used to capture the electrokinetic interactions at both calcite–brine and oil–brine interfaces. The developed TLM was assembled against measured ζ-potential values from the literature, successfully capturing the trends and closely matching the ζ-potential magnitudes. The developed TLM was compared to a diffused layer model (DLM) presented in previous works, with the DLM showing a better match to the ζ-potential values for seawater brine solutions. The ζ-potential values predicted from both surface complexation models (SCMs) were used to calculate the total interaction energy (or potential) based on the Derjaguin, Landau, Verwey, and Overbeek (DLVO) theory. It was observed that low Mg 2+ and high SO 4 2– concentrations in modified composition brine (MCB) made the calcite–brine interface more negative. However, at the oil–brine interface, low Mg 2+ made the oil–brine interface more negative but high SO 4 2– concentrations slightly shifted the oil–brine ζ-potential toward negative. At the crude oil–brine–rock (COBR) interfaces, low Mg 2+ and high SO 4 2– concentrations in the MCB were observed to generate a greater repulsive interaction energy, which could trigger carbonate wettability alteration toward water wetness. The absolute sum of the ζ-potential at both interfaces was observed to be correlated to the total interaction potential at a 0.25 nm separating distance. Thus, an increase in the absolute sum of the ζ-potentials would generate a greater repulsive interaction potential and trigger wettability alteration. Therefore, these SCMs can be applied to design modified composition brine capable of triggering a repulsive interaction energy to alter carbonate wettability toward water wetness.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Ionic Interactions at the Crude Oil–Brine–Rock Interfaces Using Different Surface Complexation Models and DLVO Theory: Application to Carbonate Wettability

2022

View full text Add to dashboard Cite

show abstract

“…The main constituent minerals of this rock type are quartz, feldspar and mica, so the electrochemical response to ionic species in tested solutions is expected to reflect the individual contribution of each mineral. Since there are no reported zeta potential measurements of feldspars and micas in contact with various aqueous solutions at equilibrium conditions, we hypothesize that the electric surface charge on these complex minerals is controlled by multi-valent PDIs, similar to the mechanism of the surface charge development on calcite surface (e.g., [58]). Therefore, the resulting surface charge and the corresponding zeta potential of gneiss-hosted feldspars in our experiments caused the zeta potential to become less negative compared with pure quartz systems.…”

Section: Effect Of Rock Type and Mineralogymentioning

confidence: 97%

Laboratory Measurements of Zeta Potential in Fractured Lewisian Gneiss: Implications for the Characterization of Flow in Fractured Crystalline Bedrock

et al. 2021

Self Cite

View full text Add to dashboard Cite

Despite the broad range of interest and possible applications, the controls on the electric surface charge and the zeta potential of gneiss at conditions relevant to naturally fractured systems remain unreported. There are no published zeta potential measurements conducted in such systems at equilibrium, hence, the effects of composition, concentration and pressure remain unknown. This study reports zeta potential values for the first time measured in a fractured Lewisian gneiss sample saturated with NaCl solutions of various concentrations, artificial seawater and artificial groundwater solutions under equilibrium conditions at confining pressures of 4 MPa and 7 MPa. The constituent minerals of the sample were identified using X-ray diffraction and linked to the concentration and composition dependence of the zeta potential. The results reported in this study demonstrate that the zeta potential remained negative for all tested solutions and concentrations. However, the values of the zeta potential of our Lewisian gneiss sample were found to be unique and dissimilar to pure minerals such as quartz, calcite, mica or feldspar. Moreover, the measured zeta potentials were smaller in magnitude in the experiments with artificial complex solutions compared with those measured with NaCl, thus suggesting that divalent ions (Ca2+, Mg2+ and SO42−) acted as potential determining ions. The zeta potential was also found to be independent of salinity in the NaCl experiments, which is unusual for most reported data. We also investigated the impact of fracture aperture on the electrokinetic response and found that surface electrical conductivity remained negligibly small across the range of the tested confining pressures. Our novel results are an essential first step for interpreting field self-potential (SP) signals and facilitate a way forward for characterization of water flow through fractured basement aquifers.

show abstract

“…The strength of these interactions is described by the equilibrium constants. The equilibrium concentration of surface complexes shows the net surface charge and the surface potential 35 . In the rock/brine surface, two main reaction sites are considered > Ca and > CO 3 , where the > sign indicates complexes at the rock surface.…”

Section: Model Developmentmentioning

confidence: 99%

Investigation of crude oil properties impact on wettability alteration during low salinity water flooding using an improved geochemical model

Ghorbani

Rashidi

Mousavi-Dehghani³

2022

Sci Rep

View full text Add to dashboard Cite

In low-salinity water flooding (LSWF), modifying the injected brine composition leads to greater oil recovery from carbonate reservoirs. The processes that control improved recovery during LSWF are not totally clear, which could lead to ambiguities in finding optimum brine composition regarding wettability alteration (WA) toward water wetness. One of the methods to determine WA is bound product sum (BPS) calculation using geochemical tools. In the case of wettability improvement, the BPS value of a crude oil-brine-rock (COBR) system should be at its minimum value. In this study, an improved geochemical model is developed, which includes the effects of oil composition (i.e., acid number, base number, and weight percent of nonhydrocarbon components) and physical properties of oil (i.e., density, viscosity, and solution gas-oil ratio) on COBR interactions. The proposed method generates BPS as a function of temperature, pressure, oil and brine composition, and pH for carbonate rocks. The model applicability was validated using several experimental data sets available in the literature. The results of the improved BPS model were in line with the results of contact angle and zeta potential measurements as the major indices of rock wettability. BPS calculations using the available geochemical tools sometimes failed to predict the correct WA trend since they overlooked the impact of oil properties on COBR interactions. The model predictability was also compared with the results of an available geochemical tool, PHREEQC, and the results demonstrate just how important the effect of oil properties and composition inclusion on wettability determination is. The improved BPS approach could be successfully utilized as an optimization tool to optimize the water composition during LSWF for a given COBR system.

show abstract

Predictive surface complexation model of the calcite-aqueous solution interface: The impact of high concentration and complex composition of brines

Cited by 15 publications

References 55 publications

Ionic Interactions at the Crude Oil–Brine–Rock Interfaces Using Different Surface Complexation Models and DLVO Theory: Application to Carbonate Wettability

Ionic Interactions at the Crude Oil–Brine–Rock Interfaces Using Different Surface Complexation Models and DLVO Theory: Application to Carbonate Wettability

Laboratory Measurements of Zeta Potential in Fractured Lewisian Gneiss: Implications for the Characterization of Flow in Fractured Crystalline Bedrock

Investigation of crude oil properties impact on wettability alteration during low salinity water flooding using an improved geochemical model

Contact Info

Product

Resources

About