Investigation on flow patterns and pressure drops of highly viscous crude oil–water flows in a horizontal pipe

Jing, Jiaqiang; Sun, Jie; Tan, Jiatong; Huang, M.N.; Liang, Quansheng; Xue, T.

doi:10.1016/j.expthermflusci.2015.10.022

Cited by 32 publications

(8 citation statements)

References 31 publications

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“…Other colloidal species have very different families of flow regimes. Oil-water emulsions travelling in horizontal pipes have six flow regimes, depending on temperature, fraction and velocity (Jing et al., 2016). Gas passing through solid foam such as sedimentary rock exhibits four regimes, depending on the size of the pores and the density of the fluid, behaving sometimes like a continuous fluid and at others more like individual molecular ‘grains’ of gas (Darabi et al., 2012).…”

Section: Colloidal Dynamismmentioning

confidence: 99%

Colloidal Social Theory: Thinking about Material Animacy and Sociality beyond Solids and Fluids

Szerszynski

2021

Theory, Culture & Society

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This paper argues that an exploration of colloids can help us situate human social life within a wider understanding of the sociality and animacy of matter. Colloids are substances such as sols, foams, powders, gels, doughs and pastes that exhibit complex and shifting macroscale physical properties that do not conform to standard conceptions of solids, liquids or gases. Colloids can behave in complex and creative ways because of their topological enfolding of dispersed and continuous matter, in different phases, at a ‘mesoscale’ intermediate between the scale of molecules and that of the macroscale substance. I relate colloids, with their twin phenomena of ‘repetition’ and ‘mediation’, to an understanding of social life as reducible neither to the interaction between separate individuals nor to a transindividual whole. I suggest that human social life participates in a colloidal ‘metapattern’ of repetition and mediation that is manifest across diverse material substrates and spatial scales.

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Section: Colloidal Dynamismmentioning

confidence: 99%

Colloidal Social Theory: Thinking about Material Animacy and Sociality beyond Solids and Fluids

Szerszynski

2021

Theory, Culture & Society

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“…Jing carried out a pipeline experiment on a highly viscous oil−water two-phase flow and found that pressure drops are significantly influenced by temperature, water fraction, and mixture velocity. 20 Tan modified the Roscoe and Brinkman viscosity model for unstable oil-in-water (O/W) dispersions through experimental research on oil−water dispersed flow without a surfactant. 21 From these studies, it is found that due to the effect of oil−water emulsification, the viscosity of crude oil does not show a downward trend as the effect of dilution with light oil, but the viscosity increases first, then reaches a peak, and finally decreases.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, heavy oil blending with water is the main method adopted in China. Jing carried out a pipeline experiment on a highly viscous oil–water two-phase flow and found that pressure drops are significantly influenced by temperature, water fraction, and mixture velocity . Tan modified the Roscoe and Brinkman viscosity model for unstable oil-in-water (O/W) dispersions through experimental research on oil–water dispersed flow without a surfactant .…”

Section: Introductionmentioning

confidence: 99%

Determination of the Transportation Limits of Heavy Crude Oil Using Three Combined Methods of Heating, Water Blending, and Dilution

et al. 2020

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Conventional methods for pipeline transportation of heavy or extraheavy crude oils adopt heating, water blending, and dilution, and several methods are generally required to be used simultaneously to ensure normal transportation. However, how to determine the optimal transport boundary conditions for heavy oils is still one of the technical challenges. In this paper, the circulating piping experiment at different water contents (0−90 wt % with an interval of 10 wt %) and temperatures (65−90 °C with an interval of 5 °C) of three heavy oils from the Xinjiang oilfield is carried out. The apparent viscosity calculated from the experimental data of the circulating pipeline shows that when the water content is below the phase inversion point, the apparent viscosity increases and when the water content is close to the phase inversion point, the apparent viscosity increases nearly three times. Only when the water content is greater than the phase inversion point, the apparent viscosity shows a downward trend. Also, then, various viscosity prediction models with different independent variables, which mainly included temperature, water content, and dilution ratio, are selected and verified. Based on experimental data of six crude oils, a prediction model of the phase inversion point is established. Simultaneously, a method for determining the boundary conditions of heavy oils using the combined methods of heating, water blending, and dilution is proposed, while a set of simple decision diagrams of boundary conditions for heavy oil is also described. Finally, verified by the heavy oil pipeline of the Bohai LvDa oilfield, the gathering and transportation limits determined by this method are consistent with the operating parameters of the oilfield.

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“…Reduction of HO viscosity by heating, diluting with lighter crudes/condensates, addition of drag reducing polymers/surfactants, and emulsification are appropriate methods. − Khan studied the effect of shear rate, temperature, pressure, pretreatment, and amount of water on the rheological behavior of HO. It was reported that the viscosity was quite high without surfactant in the water in oil emulsions.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Correlation Development of Heavy Oil Viscosity Using Bio-Additives

et al. 2019

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Rheological investigation and correlation development for the flow of heavy oil (HO) were done in a temperature range of 30–50 °C in the presence of natural surfactant extracted from Madhuca longifolia (ML) and potato starch (PS) along with water cut (0–15 vol/vol %). Viscosity of HO reduced by 41.7% after 1000 ppm ML addition at 50 °C. Viscosity reduced by 35.3 and 25.9% after addition of 2000 ppm of ML and PS, respectively, at 30 °C and 600 s–1 to the 95% HO + 5% water. Similarly, maximum viscosity reduced to 45.1 and 34.7% with 15% water cut at 30 °C and 600 s–1 after addition of 2000 ppm ML and PS, respectively. The HO was found to follow power law rheological model before and after addition of water, ML, and potato starch at each temperature. A new heavy oil viscosity correlation was developed considering the individual and combinational impacts of temperature, shear rate, water cut, and concentration of ML and PS using response surface methodology. Correlation with combinational factors showed greater accuracy in determining HO viscosity. Thus, natural extract ML and PS can be used as alternative to heating, and the new correlation using the combinational factors of temperature, shear rate, water cut, and concentration of ML and PS may be useful to predict HO viscosity with greater accuracy.

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Investigation on flow patterns and pressure drops of highly viscous crude oil–water flows in a horizontal pipe

Cited by 32 publications

References 31 publications

Colloidal Social Theory: Thinking about Material Animacy and Sociality beyond Solids and Fluids

Colloidal Social Theory: Thinking about Material Animacy and Sociality beyond Solids and Fluids

Determination of the Transportation Limits of Heavy Crude Oil Using Three Combined Methods of Heating, Water Blending, and Dilution

Experimental and Correlation Development of Heavy Oil Viscosity Using Bio-Additives

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