... Summary This study introduces a novel approach for investigating the consolidation behavior and mechanism of chemical plugging materials. The proposed method leverages molecular simulation techniques to calculate the electrostatic potential and interaction energy of epoxy resin-based plugging...

... Abstract Surfactant-polymer (SP) flooding has been considered as an important and high-efficient method to displace the residual oil trapped inside formation rock after initial water flooding. Due to the molecular interactions, some SP formulations exhibit a synergistic effect to further...

... to their ultra-tight nature, nano-sized pores, and pronounced surface-fluid interactions. Traditional enhanced oil recovery (EOR) methods struggle to overcome the high capillary pressures and confinement effects prevalent at this scale. Therefore, novel methods are essential for studying oil recovery from shale...

... application mea-triazine geology invertebrate oilfield chemistry eco-friendly chelant-metal ion adsorbent concentration efficiency toxicity reaction kinetic scavenger social responsibility corrosion inhibition feq reaction interaction autoclave sustainability production chemistry chel...

..., which accommodates a wide range of brine compositions, making it applicable to various conditions involving different temperatures, pressures, and calcium concentrations. The study found that anhydrite solubility generally increases with ionic strengths, but noted that some ion interactions...

.... The correlation of asphaltene deposits with these three factors indicated heptane percentage consistently influences asphaltene deposition. The presence of water introduces additional complexities, particularly with the interaction of time and water cut. Further tests of asphaltene precipitate obtained using...

... asphaltene inhibition geologist hydrate inhibition asphaltene remediation wax inhibition oilfield chemistry fluid dynamics geology production chemistry remediation of hydrates scale inhibition flow in porous media flow assurance asphaltene deposition interaction fraction...

... and petrophysical interactions between hydrogen, reservoir rock, and brine, which directly impact the safety and efficiency and long-term stability of storage operations. This study investigates the effects of hydrogen exposure on the geochemical and petrophysical properties of carbonate reservoirs through...

.... This is due to many factors including changes in hydration shells, indirect dipole interactions, electrostatic shielding, counter ion exchange, and a preference for association with anionic species. In this paper we demonstrate the effects that monovalent and divalent chloride salts have on the physical...

... solids as MEK, at 11% vs . 3.4%, while this crude's heptane-insoluble content is relatively low at 1.1%. Abstract Several studies have demonstrated the nature of wax and asphaltene interactions and their impact on crude properties, including deposition characteristics. Laboratory and field studies...

... testing were used to determine the efficiency of biosurfactants for dispersing field collected and lab-made iron and zinc sulfides. Fourier transform – infrared (FTIR) and ultraviolet – visible (UV-vis) spectroscopy was used to determine the mode of interaction of the biosurfactant active sites with metal...

... interaction of Ca 2+ and SO 4 2 . This virial coefficient can then be applied in Pitzer models to improve the calculation for the saturation index of scale. Quantifying the Ca-SO 4 interaction parameters can make a better prediction of mineral solubility with high calcium concentration. The results can...

... possibility of efficient UHSP in depleted oil-producing shale reservoirs, we should ascertain if hydrogen interaction with residual oil, throughout the storage period, leads to recovering undesirable amounts of oil during hydrogen extraction. Cyclic hydrogen injection can be indicative of hydrogen recovery...

... brine, which can be explained by the three different adsorption patterns governing the interaction energy between surfactant and rock surface. This work demonstrates that tailoring fluid-rock interactions is crucial to reduce the water entrapment and thereby improve gas productivity for dry gas wells...

... The optimal situation is to control moderately attractive interactions where the "house of card structure" would fill in the entire volume and remain stable throughout the setting process. Achieving this optimal interaction for every design and operating condition is challenging as multiple...

... Abstract A theoretical model of polyacrylamide polymers (PAM and PHPA) hydration dynamics is explored, with emphasis on the effect pf salinity on the hydration dynamics of traditional PAM and PHPA polymers. By understanding the interactions at a molecular level between the polymer...

... Abstract In this study, a chemical model has been developed for the simulation of the scale inhibitor (SI) interactions with carbonate systems (calcite), where the aqueous phase may contain free calcium and magnesium ions. The resulting model couples together the equations of (i) the carbonate...

... that the rock-fluid interaction is the main mechanism, modeling this process is still challenging. Our main goal is to validate a physically based model on experimental observations and use the validated model to predict CO 2 injectivity alteration based on geochemical reactions in carbonate rocks...

... limit the application of geochemical data as most ions are nonconservative and can either interact with formation rock or react with other ions. Besides, mistakenly using nonconservative ion as being conservative may cause unexpected results. In order to further explore the nonconservative natural...

... parameter's alteration, but they did not incorporate waxes found in the oilfield deposits. This study aims to investigate the nature of "waxphaltenes"; from intermolecular interactions between asphaltenes and wax in samples collected from fields and made in the laboratory. Asphaltenes samples were extracted...