Capillary contact angle for the quartz-distilled water-normal decane interface at temperatures up to 200 °C

Duffy, Timothy; Li, Jiaxi; Johns, Russell T.; Lvov, Serguei N.

doi:10.1016/j.colsurfa.2020.125608

Cited by 14 publications

(4 citation statements)

References 39 publications

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“…The dependence of temperature on rock wetting behaviors and the attendant effects on oil recovery from sandstone formations have been investigated in previous studies. − Although some reported results have been quite contradictory, , the common trend regarding the impact of temperature on rock wettability is that increasing the temperature enhances the capacity of the trapped oil to flow compared to that of the water; hence, the water-wetness of the rock decreases at elevated temperatures. Moreover, an increase in temperature reduces the oil–water IFT and decreases the viscosity of trapped oil, thus resulting in an overall increase in oil recovery from sandstone formations. − …”

Section: Resultsmentioning

confidence: 99%

Impact of Methylene Blue on Enhancing the Hydrocarbon Potential of Early Cambrian Khewra Sandstone Formation from the Potwar Basin, Pakistan

Ali,

Shar,

Yekeen

et al. 2023

ACS Omega

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Significant amounts of hydrocarbon resources are left behind after primary and secondary recovery processes, necessitating the application of enhanced oil recovery (EOR) techniques for improving the recovery of trapped oil from subsurface formations. In this respect, the wettability of the rock is crucial in assessing the recovery and sweep efficiency of trapped oil. The subsurface reservoirs are inherently contaminated with organic acids, which renders them hydrophobic. Recent research has revealed the significant impacts of nanofluids, surfactants, and methyl orange on altering the wettability of organic-acid-contaminated subsurface formations into the water-wet state. This suggests that the toxic dye methylene blue (MB), which is presently disposed of in huge quantities and contaminates subsurface waters, could be used in EOR. However, the mechanisms behind hydrocarbon recovery using MB solution for attaining hydrophilic conditions are not fully understood. Therefore, the present work examines the impacts of MB on the wettability reversal of organic-acid-contaminated Khewra sandstone samples (obtained from the outcrop in the Potwar Basin, Pakistan) under the downhole temperature and pressure conditions. The sandstone samples are prepared by aging with 10 –2 mol/L stearic acid and subsequently treated with various amounts of aqueous MB (10–100 mg/L) for 1 week. Contact angle measurements are then conducted under various physio-thermal conditions (0.1–20 MPa, 25–50 °C, and salinities of 0.1–0.3 M). The results indicate that the Khewra sandstone samples become hydrophobic in the presence of organic acid and under increased pressure, temperature, and salinity. However, the wettability changes from oil-wet to preferentially water-wet in the presence of various MB solutions, thus highlighting the favorable effects of MB on EOR from the Khewra sandstone formation. Moreover, the most significant change in wettability is observed for the Khewra sandstone sample that was aged using 100 mg/L MB. These results suggest that injecting MB into deep underground Khewra sandstone reservoirs may produce more residual hydrocarbons.

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Section: Resultsmentioning

confidence: 99%

Impact of Methylene Blue on Enhancing the Hydrocarbon Potential of Early Cambrian Khewra Sandstone Formation from the Potwar Basin, Pakistan

Ali,

Shar,

Yekeen

et al. 2023

ACS Omega

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“…It was very challenging to determine the advancing and retreating contact angles of the droplets on the fiber due to the poor sharpness of Figure 3. The contact angle values of the deionized water in the capillaries were determined in accordance with Timothy's measurements 37 using 100 ± 2.15, 300 ± 3.37, and 500 ± 6.73 capillaries from the same manufacturer, shown in Table 2.…”

Section: Experiments and Methodsmentioning

confidence: 99%

Experimental verification of the additivity between the barrel droplet's drag force and the fiber number

Wang

Sun

et al. 2023

AIChE Journal

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Research on the single fiber scale has an essential application value in the coalescence field. The study of the droplets' behavior on the fiber junctions can provide support data for optimizing the coalescer's drainage performance on the macroscopic scale. However, relevant research focusing on the force change of droplets during the transition from a single fiber to multifiber is relatively scarce. The droplet migration platform was built using the Lavision particle image velocimetry system, which can observe the behavior of droplets on fibers. The force and fiber number relationship were analyzed when the droplets were separated from the fiber junctions. Two detachment modes were observed during separation. Furthermore, the drag force satisfied the additivity theorem by increasing the number of fibers under the same detachment mode. In addition, the minimum Reynolds number prediction model was established under two separation forms, which had good prediction compared to the experimental data.

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“…The capillary technique is another precise method [ 176 , 177 ], from which the contact angles can be obtained with an accuracy of

0.1° [ 178 ]. Since the novel work proposed by Lucan, Washburn, and Rideal on the capillary rise technique in the 1920s [ 179 , 180 , 181 ], contact angles have been inferred by the Lucas-Washburn-Rideal Equation (LWRE).…”

Section: Characterization Of the Static And Dynamic Wetting Propertie...mentioning

confidence: 99%

Advances in the Fabrication and Characterization of Superhydrophobic Surfaces Inspired by the Lotus Leaf

et al. 2022

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Nature has proven to be a valuable resource in inspiring the development of novel technologies. The field of biomimetics emerged centuries ago as scientists sought to understand the fundamental science behind the extraordinary properties of organisms in nature and applied the new science to mimic a desired property using various materials. Through evolution, living organisms have developed specialized surface coatings and chemistries with extraordinary properties such as the superhydrophobicity, which has been exploited to maintain structural integrity and for survival in harsh environments. The Lotus leaf is one of many examples which has inspired the fabrication of superhydrophobic surfaces. In this review, the fundamental science, supported by rigorous derivations from a thermodynamic perspective, is presented to explain the origin of superhydrophobicity. Based on theory, the interplay between surface morphology and chemistry is shown to influence surface wetting properties of materials. Various fabrication techniques to create superhydrophobic surfaces are also presented along with the corresponding advantages and/or disadvantages. Recent advances in the characterization techniques used to quantify the superhydrophobicity of surfaces is presented with respect to accuracy and sensitivity of the measurements. Challenges associated with the fabrication and characterization of superhydrophobic surfaces are also discussed.

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Capillary contact angle for the quartz-distilled water-normal decane interface at temperatures up to 200 °C

Cited by 14 publications

References 39 publications

Impact of Methylene Blue on Enhancing the Hydrocarbon Potential of Early Cambrian Khewra Sandstone Formation from the Potwar Basin, Pakistan

Impact of Methylene Blue on Enhancing the Hydrocarbon Potential of Early Cambrian Khewra Sandstone Formation from the Potwar Basin, Pakistan

Experimental verification of the additivity between the barrel droplet's drag force and the fiber number

Advances in the Fabrication and Characterization of Superhydrophobic Surfaces Inspired by the Lotus Leaf

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