Closure to “Conservative Characteristics-Based Schemes for Mass Transport” by C. W. Li and T. S. Yu

Li, Chi Wai; Yu, Tingting

doi:10.1061/(asce)0733-9429(1996)122:2(118)

Cited by 22 publications

(31 citation statements)

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“…9,10 However, as temperature increases, foam stability reduces signicantly. 9,10 However, as temperature increases, foam stability reduces signicantly.…”

Section: Foam In High Temperaturementioning

confidence: 99%

High temperature and oil tolerance of surfactant foam/polymer–surfactant foam

Sun

Jun

et al. 2015

RSC Adv.

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Foam performance during oil displacement is closely related to the reservoir environment. In this study, both bulk and porous media experiments were conducted to investigate surfactant foam and polymersurfactant foam behaviors at high temperature and with crude oil. After aging at 90 C for 90 days, the foam drainage half-life of the aged polymer-surfactant foam was four times longer than that of the fresh surfactant foam. Scanning electron microscope images indicated that, even experienced high temperature aging, the polymer and surfactant could still develop multilayer complexes to enhance the foam film strength. Within a certain oil content, the foam stability in the presence of oil could be better than in the absence of oil. Stereoscopic microscope images revealed that the existing form and content of oil in the foam film had played a vital role. Core flooding experiments further confirmed that stable surfactant foam and polymer-surfactant foam could generate in the presence of waterflooded residual oil and give rise to additional oil recovery of 15.35% and 35.75% at 90 C, respectively. The positive responses of this study may be attractive to potential foam field applications.

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“…9,10 However, as temperature increases, foam stability reduces signicantly. 9,10 However, as temperature increases, foam stability reduces signicantly.…”

Section: Foam In High Temperaturementioning

confidence: 99%

High temperature and oil tolerance of surfactant foam/polymer–surfactant foam

Sun

Jun

et al. 2015

RSC Adv.

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“…(Rosaceae) is a traditional Tibetan medicine in P. R. China and a traditional herbal medicine of Mongolia . It is widely distributed in many provinces of P. R. China, such as Inner Mongolia, Tibet, Xinjiang, Qinghai, Gansu, and Sichuan . The aerial parts of this plant are used for the treatment of skin diseases, mastitis, breast cancer, beriberi, and edema .…”

Section: Introductionmentioning

confidence: 99%

Flavonoids from Potentilla parvifolia Fisch. and Their Neuroprotective Effects in Human Neuroblastoma SH‐SY5Y Cells in vitro

Yuan

Luan

Wang

et al. 2017

Chemistry & Biodiversity

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Potentilla parvifolia Fisch. (Rosaceae) is a traditional medicinal plant in P. R. China. In this study, seven flavonoids, ayanin (1), tricin (2), quercetin (3), tiliroside (4), miquelianin (5), isoquercitrin (6), and astragalin (7), were separated and purified from ethyl acetate extractive fractions from ethanol extracts of P. parvifolia using a combination of sevaral chromatographic methods. The human neuroblastoma SH-SY5Y cells were differentiated with all trans-retinoic acid and treated with okadaic acid to induce tau protein phosphorylation and synaptic atrophy, which could establish an Alzheimer's disease cell model. The neuroprotective effects of these flavonoids in cellular were evaluated in vitro by this cell model. Results from the Western blot and morphology analysis suggested that compounds 3 and 4 had the better neuroprotective effects.

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“…Thus, injection of plugging materials is required to block breakthrough channelings . The use of steam foam, phenolic resin, and superfine cement has been reported . However, the effect of steam foam is limited due to the poor foam stability.…”

Section: Introductionmentioning

confidence: 99%

High‐temperature‐resistant polymer gel system with metal–organic mixed cross‐linking agents

Zhang

et al. 2015

J of Applied Polymer Sci

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A high‐temperature (200°C)‐resistant polymer gel system was developed from partially hydrolyzed polyacrylamide (HPAM), chromium lactate (CrL), and water‐soluble phenol/formaldehyde resin (WPF) mixed cross‐linkers. Rheological measurements indicated that the gelation process of the gel system could be divided into four successive steps: induction, first cross‐linking with metal cross‐linker, secondary cross‐linking with organic cross‐linker, and stabilization. Effects of various parameters that affect the gelation time and gel strength including polymer concentration, cross‐linker concentration, salinity, pH, and the gelation temperature were evaluated. Gelant formulated with 0.5 wt % HPAM, 0.1 wt % CrL, and 0.9 wt % WPF and treated at 80°C for 48 h showed sufficient gelation time, high rigidity, and good thermal stability. Morphology observation by scanning electron microscopy (SEM) and atomic force microscopy (AFM) revealed that the gel had compact network microstructure. A cross‐linking mechanism for the gel system was proposed based on the gelation process and experimental results. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42261.

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Closure to “Conservative Characteristics-Based Schemes for Mass Transport” by C. W. Li and T. S. Yu

Cited by 22 publications

References 0 publications

High temperature and oil tolerance of surfactant foam/polymer–surfactant foam

High temperature and oil tolerance of surfactant foam/polymer–surfactant foam

Flavonoids from Potentilla parvifolia Fisch. and Their Neuroprotective Effects in Human Neuroblastoma SH‐SY5Y Cells in vitro

High‐temperature‐resistant polymer gel system with metal–organic mixed cross‐linking agents

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