Relevance of zeta potential as a tool for predicting the response of controlled salinity waterflooding in oil–water-carbonate systems

Rodrigues, Romain; Levant, Michael; Klimenko, Alexandra

doi:10.1016/j.fuel.2022.124629

Cited by 3 publications

(4 citation statements)

References 81 publications

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“…Although due to the high SO 4 2– concentration in SW, the surface remains negatively charged; however, this can be easily reversed by a change in the fluid composition. The reported calcite mineral surface charge in SW agrees with the report of Rodrigues et al 65 who studied the effect of controlled salinity flooding on the oil–water–carbonate system. Furthermore, our observations differ slightly from the report of Belhaj et al 84 who reported a higher magnitude of the surface charge value even though both cases agree on the nature (negative surface charge) of the calcite mineral surface charge in SW.…”

Section: Resultssupporting

confidence: 90%

“…However, studies were conducted to see if the ζ-potential may be used as a special indicator of recovery for LSW. 65 Streaming potential measurements and core flooding experiments were used by the authors to assess the crude oil/brine/rock system. Results showed that the recovery and ζ-potential of the water–oil and rock–water interfaces are correlated.…”

Section: Wettability Alteration and The ζ-Potentialmentioning

confidence: 99%

“…However, little or no correlation has been established with wettability other than a change in magnitude and sign of the ζ-potential, which could be due to adsorption of fluids on the particle surface or dissolution of ions from the surface. However, studies were conducted to see if the ζ-potential may be used as a special indicator of recovery for LSW . Streaming potential measurements and core flooding experiments were used by the authors to assess the crude oil/brine/rock system.…”

Section: Wettability Alteration and The ζ-Potentialmentioning

confidence: 99%

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Effect of Sulfate-Based Scales on Calcite Mineral Surface Chemistry: Insights from Zeta-Potential Experiments and Their Implications on Wettability

et al. 2022

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Scale formation and deposition in the subsurface and surface facilities have been recognized as a major cause of flow assurance issues in the oil and gas industry. Sulfate-based scales such as sulfates of calcium (anhydrite and gypsum) and barium (barite) are some of the commonly encountered scales during hydrocarbon production operations. Oilfield scales are a well-known flow assurance problem, which occurs mainly due to the mixing of incompatible brines. Researchers have largely focused on the rocks’ petrophysical property modifications (permeability and porosity damage) caused by scale precipitation and deposition. Little or no attention has been paid to their influence on the surface charge and wettability of calcite minerals. Thus, this study investigates the effect of anhydrite and barite scales’ presence on the calcite mineral surface charge and their propensity to alter the wetting state of calcite minerals. This was achieved vis-à-vis zeta-potential (ζ-potential) measurement. Furthermore, two modes of the scale control (slug and continuous injections) using ethylenediaminetetraacetic acid (EDTA) were examined to determine the optimal control strategy as well as the optimal inhibitor dosage. Results showed that the presence of anhydrite and barite scales in a calcite reservoir affects the colloidal stability of the system, thus posing a threat of precipitation, which would result in permeability and porosity damage. Also, the calcite mineral surface charge is affected by the presence of calcium and barium sulfate scales; however, the magnitude of change in the surface charge via ζ-potential measurement is insignificant to cause wettability alteration by the mineral scales. Slug and continuous injections of EDTA were implemented, with the optimal scale control strategy being the continuous injection of EDTA solutions. The optimal dosage of EDTA for anhydrite scale control is 5 and 1 wt % for the formation water and seawater environments, respectively. In the case of barite, in both environments, an EDTA dosage of 1 wt % suffices. Findings from this study not only further the understanding of the scale effects on calcite mineral systems but also provide critical insights into the potential of scale formation and their mechanisms of interactions for better injection planning and the development of a scale control strategy.

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Section: Resultssupporting

confidence: 90%

Section: Wettability Alteration and The ζ-Potentialmentioning

confidence: 99%

Section: Wettability Alteration and The ζ-Potentialmentioning

confidence: 99%

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Effect of Sulfate-Based Scales on Calcite Mineral Surface Chemistry: Insights from Zeta-Potential Experiments and Their Implications on Wettability

et al. 2022

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“…It is considered that the adhesion of subsurface crude oil is related to ions and the recovery of crude oil could be improved by low salinity water flooding, , but molecular-level explanation is still not well-known. Based on the above phenomena and conclusions, taking molecular interaction into account, we propose that the presence of divalent ions reduces the content of interfacial tetracoordinated water, further leading to an increase in oil adhesion.…”

Section: Resultsmentioning

confidence: 99%

Interfacial Water-Dictated Oil Adhesion Based on Ion Modulation

He,

Jin,

Wang

et al. 2023

J. Am. Chem. Soc.

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Oil adhesion on ionic surfaces is ubiquitous in organisms and natural environments and is generally determined by surface chemical component and texture. However, when adhesion occurs, water molecules at the solid–liquid interface, acting as a bridge not only influenced by the structure and composition of the solid surface but also interacting with the neighboring oil molecules, play a crucial role but are always overlooked. Herein, we investigate the oil adhesion process on a carboxyl-terminated self-assembled monolayer surface (COOH-SAM) in ionic solutions and observe the interfacial water structure via surface-enhanced Raman scattering (SERS) in this system. It is found that the lower the tetracoordinated water content, the stronger the oil adhesion. Compared to monovalent ions, the strengthened binding of multivalent ions to the COOH-SAM surface makes the interfacial water more disordered, which eventually leads to a stronger oil adhesion. Notably, the amount of oil adhesion decreases with an increase in the thickness of the interfacial water region. The interfacial water-dictated oil adhesion has been demonstrated in capillary to simulate the water-driven oil recovery, providing a molecular-level explanation for enhanced oil recovery from low salinity water flooding and also indicating potential applications in intelligent microfluidic and seawater desalination.

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Research on Monitoring Methods for Fluid Flow in Strata

Zhang

2024

Processes

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In many projects, it is important to monitor the direction of groundwater flow, but conventional methods make it difficult. Through streaming potential detection technology, under the action of external pressure, liquid can be forced to flow through solid pores to generate directional flow, and a flow potential can be generated at both ends of solid pores. The phenomenon of different streaming potentials can help engineers determine the direction of fluid flow. In this study, tests were conducted using a core injection system and a streaming potential tester to carry out injections on sandstone samples of two different structures to study the effects of different injection pressures and different salinities on the variation in the streaming potential in sandstone. Moreover, a small-scale field water injection monitoring experiment was also carried out to observe the actual situation of the streaming potential generated during water injection in the field formation structure. The laboratory test results show that the flow potential is accompanied by the liquid injection process in the sandstone sample, and the flow potential produced by the sandstone with different porosities is obviously different, Therefore, the flow potential associated with the actual rock injection process can be used to infer porosity and permeability. This study provides a new method for monitoring underground fluids and is expected to improve the efficiency of oil extraction and geothermal development.

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Relevance of zeta potential as a tool for predicting the response of controlled salinity waterflooding in oil–water-carbonate systems

Cited by 3 publications

References 81 publications

Effect of Sulfate-Based Scales on Calcite Mineral Surface Chemistry: Insights from Zeta-Potential Experiments and Their Implications on Wettability

Effect of Sulfate-Based Scales on Calcite Mineral Surface Chemistry: Insights from Zeta-Potential Experiments and Their Implications on Wettability

Interfacial Water-Dictated Oil Adhesion Based on Ion Modulation

Research on Monitoring Methods for Fluid Flow in Strata

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