Experimental investigation of temperature effect on three-phase relative permeability isoperms in heavy oil systems

Akhlaghinia, Manoochehr; Torabi, Farshid; Chan, Christine W.

doi:10.1016/j.fuel.2013.10.049

Cited by 30 publications

(13 citation statements)

References 43 publications

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“…Bennion found that relative permeability to oil and water increases with increasing temperature when less than 100 °C 11 , 12 . Akhlaghinia observed that permeability of oil phase in an experimental reservoir increases to a maximum and then decreases with increasing temperature 16 , 17 . Experimental results obtained by some researchers revealed no reduction, and at most few changes, in both oil and water relative permeability with increasing temperature, so they concluded that oil-water relative permeabilities are independent oftemperature 21 , 24 – 28 .…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on effects of temperature on oil and water relative permeability in heavy-oil reservoirs

Qin

Liu

et al. 2018

Sci Rep

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A heavy-oil sample derived from a block of Venezuelan oil was used to investigate effects of temperature on relative permeability to oil and water. Measurements of relative permeability were based on one-dimensional core-flow simulated systems using an unsteady-state technique at different temperatures, and then impact rules of temperature dependency were discussed. Both water and heavy oil in cores were reconfigured under the consideration of actual reservoir conditions. Study results suggest that relative permeability is high to oil phase and is very low to water phase, and fluid flow capability is extremely imbalanced between oil and water. As temperature increases, irreducible water saturation linearly increases, residual oil saturation performs a nonlinear decrease, and water saturation exhibits a nonlinear increase at equal-permeability points. The water-wettability of rocks is heightened and overall relative permeability curves shift to the right with increasing temperature; furthermore, two-phase flow area becomes wider and both oil and water relative permeability increases apparently, but the increase ratio of water is less than that of oil.

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Section: Introductionmentioning

confidence: 99%

Experimental studies on effects of temperature on oil and water relative permeability in heavy-oil reservoirs

Qin

Liu

et al. 2018

Sci Rep

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“…High temperature could reduce the viscosity of solution, thus accelerating the evaporation of liquid film of the foam. When the liquid film of the foam was thin enough, a burst occurred [16]. Foaming ability and foam stability were better under neutral condition than alkaline, and worst in acidic environments.…”

Section: Foaming Ability and Foam Stability Of Gementioning

confidence: 99%

Processing and Prebiotics Characteristics of β-Glucan Extract from Highland Barley

Ren

Xie

Liu³

et al. 2018

Applied Sciences

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β-glucan extract (GE) was obtained from highland barley bran using alkaline–acid–alcohol extraction method. The stability, solubility, foaming ability, and prebiotics characteristics of GE were assessed consecutively. GE demonstrated excellent heat stability (hardly degraded at 220 °C) and pH stability, especially at neutral or alkaline condition, and its solubility was significantly influenced by temperature instead of pH or NaCl, achieving 0.91 g/100 g at 100 °C. Good foaming ability and foam stability of GE were observed during low temperatures (≤40 °C), neutral or alkaline condition. GE indicated a strong anti-digestibility capacity of resisting the hydrolysis of α-amylase and simulated human gastric acid. Interestingly, GE could effectively promote the growth of Lactobacillus bulgaricus and Bifidobacterium adolescentis, which was close to fructooligosaccharide. The results of this study could offer valuable information for the application of β-glucan from highland barley as prebiotics in promoting human intestinal health metabolism.

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“…The initial porosity of the sandpack was measured using the gravity saturation method [30]. The absolute permeability was estimated by injecting a brine into the sandpack from the top at 25 • C and correlating the flow rate and pressure drop across the sandpack [30]. The brine solution was prepared by mixing deionized (DI) water and 1.1 wt.% KCl.…”

Section: Properties Of the Sandpackmentioning

confidence: 99%

Enhancing the Performance of HPAM Polymer Flooding Using Nano CuO/Nanoclay Blend

et al. 2020

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A single polymer flooding is a widely employed enhanced oil recovery method, despite polymer vulnerability to shear and thermal degradation. Nanohybrids, on the other hand, resist degradation and maintain superior rheological properties at different shear rates. In this article, the effect of coupling CuO nanoparticles (NPs) and nanoclay with partially hydrolyzed polyacrylamide (HPAM) polymer solution on the rheological properties and the recovery factor of the nanohybrid fluid was assessed. The results confirmed that the NP agents preserved the polymer chains from degradation under mechanical, chemical (i.e., salinity), and thermal stresses and maintained good extent of entanglement among the polymer chains, leading to a strong viscoelastic attribute, in addition to the pseudoplastic behavior. The NP additives increased the viscosity of the HPAM polymer at shear rates varying from 10–100 s−1. The rheological properties of the nanohybrid systems varied with the NP additive content, which in turn provided a window for engineering a nanohybrid system with a proper mobility ratio and scaling coefficient, while avoiding injectivity issues. Sandpack flooding tests confirmed the superior performance of the optimized nanohybrid system and showed a 39% improvement in the recovery ratio relative to the HPAM polymer injection.

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Experimental investigation of temperature effect on three-phase relative permeability isoperms in heavy oil systems

Cited by 30 publications

References 43 publications

Experimental studies on effects of temperature on oil and water relative permeability in heavy-oil reservoirs

Experimental studies on effects of temperature on oil and water relative permeability in heavy-oil reservoirs

Processing and Prebiotics Characteristics of β-Glucan Extract from Highland Barley

Enhancing the Performance of HPAM Polymer Flooding Using Nano CuO/Nanoclay Blend

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