Dependence of wettability on brine composition in high temperature carbonate rocks

Chandrasekhar, Sriram; Sharma, Himanshu; Mohanty, Kishore K.

doi:10.1016/j.fuel.2018.03.176

Cited by 56 publications

(27 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It should also be noted that SCM has been combined with reactive flow models such as UTCHEM to predict oil recovery from formations. 40 − 42 These approaches served to streamline both SCM and DLVO theory incorporated into reactive flow models to serve as a predictive tool for designing chemically tuned brine compositions.…”

Section: Introductionmentioning

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

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: Introductionmentioning

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 authors concluded that increasing sulfate and decreasing sodium concentration might be beneficial for altering wettability towards a water-wet condition in chalks. Those results motivated researchers to investigate the impact of potential determining ions concentration in oil recovery from carbonate [21][22][23].…”

Section: Experimental Observations and Mechanismsmentioning

confidence: 99%

Modeling Oil Recovery in Brazilian Carbonate Rock by Engineered Water Injection Using Numerical Simulation

et al. 2021

View full text Add to dashboard Cite

Waterflooding remains the most commonly used method to improve oil recovery. Although the injected brine type is mainly dependent on its availability, few of its characteristics can be controlled during project design. Published laboratory work indicates that the adjustment of injected brine composition can cause an increase in oil production by wettability alteration. This research objective is to propose a novel four-step framework for modeling improved oil recovery by Engineered Water Injection from laboratory to numerical simulation for carbonate formations. We use a geochemical-based model that estimates contact angles to predict wettability alteration. The steps are (1) screening criteria, (2) geochemical evaluation, (3) wettability alteration modeling, and (4) coreflood history-match. We validate our framework by conducting history-match simulations of Brazilian Pre-Salt corefloods. Incremental oil recovery factors are between 5 to 11%, consistent with those reported during experiments. The reduction in residual oil saturation varied from 3 to 5%. This work is a new systematic procedure to model oil recovery using a comprehensive approach that is fundamental to understanding the underlying wettability alteration mechanisms by Engineered Water Injection.

show abstract

“…It has a huge database of groundwater balance model and ion exchange model (Steding et al, 2020), which can simulate the chemical reaction and migration process of sewage and clean water in the environment, and is widely used in the world (Mahani et al, 2016). In addition, scholars (Chandrasekhar et al, 2018;Korrani et al, 2015) have also conducted a lot of simulation studies on groundwater hydrochemical evolution and water rock interaction in arti cial recharge process by using PHREEQC (Sharma and Mohanty, 2018), and the water rock interaction analysis software has been relatively mature (Shabani and Zivar, 2020).…”

Section: Introductionmentioning

confidence: 99%

Insight into the water–rock interaction process and purification mechanism of mine water in underground reservoir of Daliuta coal mine in China

Jiang

Gao

et al. 2022

Environ Sci Pollut Res

View full text Add to dashboard Cite

The process of water rock interaction and the puri cation mechanism of mine water quality were not clear after being stored in underground reservoir. This study based on the analysis of the hydrochemical characteristics of the reservoir water samples and the characterization of the rock samples, combined with PHREEQC analysis, the mechanism of water quality puri cation of mine water was discussed. The results showed that the rocks in the underground reservoir had layered silicate structure and aky kaolinite structure, with some irregular edges and micro cracks, and higher speci c surface area and total pore volume. These characteristics made the rocks had a certain adsorption and removal capacity for heavy metal ions and other pollutants in the mine water. The water rock interaction, such as the dissolution of albite and halite, the precipitation of gypsum and kaolinite, and the cation exchange, resulted in the increase of the concentration of Na + and the decrease of the concentration of Ca 2+ , Mg 2+ and TDS in the outlet water. This study also showed that PHREEQC analysis can be used to analyze the water rock interaction of coal mine underground reservoir and obtained more detailed information.

show abstract

Dependence of wettability on brine composition in high temperature carbonate rocks

Cited by 56 publications

References 18 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

Modeling Oil Recovery in Brazilian Carbonate Rock by Engineered Water Injection Using Numerical Simulation

Insight into the water–rock interaction process and purification mechanism of mine water in underground reservoir of Daliuta coal mine in China

Contact Info

Product

Resources

About