Modeling wettability change in sandstones and carbonates using a surface-complexation-based method

Korrani, Aboulghasem Kazemi Nia; Jerauld, Gary

doi:10.1016/j.petrol.2018.12.016

Cited by 71 publications

(47 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Korrani 53 tested the BPS approach predictability for several modified salinity waterfloods, such as the experimental work by Yousef et al 51 . Korrani 53 used PHREEQC to calculate BPS of different dilutions of injected water. He reported that BPS failed to predict the correct trend for Yousef et al 51 experiments.…”

Section: Model Validationmentioning

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

Section: Model Validationmentioning

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

show abstract

“…Moreover, brine dilution has been shown to be relatively successful in sandstones [13][14][15]. However, it was evidenced that changing specific ions concentration is more relevant for improved oil recovery in carbonate rocks.…”

Section: Experimental Observations and Mechanismsmentioning

confidence: 99%

“…Examples are: double layer expansion [24], calcite dissolution [25], and multi-ion exchange [26]. However, those models had relatively low success in predicting several experimental observations [15]. For example, experiments conducted under chemical equilibrium showed that the EWI effect could occur even without calcite dissolution [27].…”

Section: Experimental Observations and Mechanismsmentioning

confidence: 99%

“…Empirical models, for instance, the Bond-Product-Sum (BPS), had relative success in quantifying the wettability alteration trends and their relation to ZP values for limestone [29]. However, Korrani and Jerauld [15] suggested that BPS cannot model the EWI effect in many other cases. The authors report that the EWI mechanisms are ignored or independently addressed through previous modeling approaches.…”

Section: Experimental Observations and Mechanismsmentioning

confidence: 99%

See 1 more Smart Citation

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

“…The contact angle was then incorporated in Brook Corey's formula to obtain the relative permeability functions for various low saline brine injection scenarios. Meanwhile, Korrani and Jerauld [281] showed that BPS failed to predict wettability change as instead of decreasing, it increased as wettability moves towards more water-wet state, and suggested that stability number (SN), which is a dimensionless group for ratio of electrostatic to van der Waals force, gave a better prediction of coreflood experiments and the Endicott field trial conducted by BP [219].…”

Section: Sandstone Rocksmentioning

confidence: 99%

Brine-Dependent Recovery Processes in Carbonate and Sandstone Petroleum Reservoirs: Review of Laboratory-Field Studies, Interfacial Mechanisms and Modeling Attempts

2018

View full text Add to dashboard Cite

Brine-dependent recovery, which involves injected water ionic composition and strength, has seen much global research efforts in the past two decades because of its benefits over other oil recovery methods. Several studies, ranging from lab coreflood experiments to field trials, indicate the potential of recovering additional oil in sandstone and carbonate reservoirs. Sandstone and carbonate rocks are composed of completely different minerals, with varying degree of complexity and heterogeneity, but wettability alteration has been widely considered as the consequence rather than the cause of brine-dependent recovery. However, the probable cause appears to be as a result of the combination of several proposed mechanisms that relate the wettability changes to the improved recovery. This paper provides a comprehensive review on laboratory and field observations, descriptions of underlying mechanisms and their validity, the complexity of the oil-brine-rock interactions, modeling works, and comparison between sandstone and carbonate rocks. The improvement in oil recovery varies depending on brine content (connate and injected), rock mineralogy, oil type and structure, and temperature. The brine ionic strength and composition modification are the two major frontlines that have been well-exploited, while further areas of investigation are highlighted to speed up the interpretation and prediction of the process efficiency.

show abstract

Modeling wettability change in sandstones and carbonates using a surface-complexation-based method

Cited by 71 publications

References 40 publications

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

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

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

Brine-Dependent Recovery Processes in Carbonate and Sandstone Petroleum Reservoirs: Review of Laboratory-Field Studies, Interfacial Mechanisms and Modeling Attempts

Contact Info

Product

Resources

About