On-line measurement of separation dynamics in primary gas/oil/water separators: Challenges and technical solutions—A review

Jaworski, Artur J.; Meng, Guangtian

doi:10.1016/j.petrol.2009.06.007

Cited by 60 publications

(28 citation statements)

References 44 publications

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“…This procedure enhances the separation equipment design and helps prevent environmental hazards such as the accidental discharge of oily process water into the sea (Jaworski and Meng, 2009). This ill-defined thick material is known as a rag layer and is comprised of emulsified water and/or oil, asphaltenes, clays, and solids.…”

Section: Introductionmentioning

confidence: 99%

Effect of Water Content, Temperature and Average Droplet Size on the Settling Velocity of Water-in-Oil Emulsions

Souza

Santos

Cruz

et al. 2015

Braz. J. Chem. Eng.

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-Water-in-oil (W/O) emulsions are complex mixtures generally found in crude oil production in reservoirs and processing equipment. Sedimentation studies of water-oil emulsions enable the analysis of the fluid dynamic behavior concerning separation of this system composed of two immiscible liquids. Gravitational settling was evaluated in this article for a model emulsion system consisting of water and a Brazilian crude oil diluted in a clear mineral oil as organic phase. The effects of water content and temperature were considered in the study of sedimentation velocity of water-oil emulsions. Water contents between 10% and 50 % and temperatures of 25, 40 and 60 °C were evaluated, and a Richardson-Zaki type correlation was obtained to calculate settling velocities as a function of the process variables investigated. Water contents and average droplet sizes were monitored at different levels in the settling equipment, thus enabling identification of the effect of these variables on the phenomena of sedimentation and coalescence of the emulsions studied. The results showed that the emulsion stability during sedimentation was governed by the emulsion water content, which yielded high settling velocities at low water contents, even when very small droplets were present. A quantitative analysis of the combined effects of drop size and droplet concentration supports the conclusion that a stronger effect is produced by the higher concentration of particles, compared with the relatively smaller effect of increasing the size of the droplets.

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Section: Introductionmentioning

confidence: 99%

Effect of Water Content, Temperature and Average Droplet Size on the Settling Velocity of Water-in-Oil Emulsions

Souza

Santos

Cruz

et al. 2015

Braz. J. Chem. Eng.

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“…Consequently, the separation of liquid-liquid colloidal dispersions, in particular, surfactant stabilized emulsions, remains a significant challenge with respect to the design, operation, and evaluation of environmental impacts of industrial processes involving emulsions [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Analysis of dynamic surfactant mass transfer and its relationship to the transient stabilization of coalescing liquid–liquid dispersions

Grimes

Dorao

Simon

et al. 2010

Journal of Colloid and Interface Science

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“…1 Crude oil contains bubbles and dissolved gases. 8 Bubble separation from the liquid using degassing hydrocyclones is relatively easy because of the very large density differences 9 ; however, the microbubble dynamics in rapid swirling liquid flow have rarely been studied, and as a result, the design guidelines for degassing hydrocyclones are inaccurate. 2,3 Bubbles, dissolved gases, and liquid phase form a multicomponent fluid.…”

Section: Introductionmentioning

confidence: 99%

“…Swirling flows are commonly produced using tangential inlets, guided vanes, or rotating cylinders. 8 Bubble separation from the liquid using degassing hydrocyclones is relatively easy because of the very large density differences 9 ; however, the microbubble dynamics in rapid swirling liquid flow have rarely been studied, and as a result, the design guidelines for degassing hydrocyclones are inaccurate.…”

Section: Introductionmentioning

confidence: 99%

Bubble‐separation dynamics in a planar cyclone: Experiments and CFD simulations

Qian

et al. 2018

AIChE Journal

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A planar cyclone is designed for visualizing bubbles in the cross‐section of a degassing hydrocyclone. The pressure distribution is studied through a series of experiments and Reynolds stress model simulations. The velocity distribution of the planar cyclone mostly exhibits the quasi‐forced vortex zone and boundary layer zone. The bubble dynamics are simulated using both Euler‐Euler and Euler‐Lagrange approaches, and the output is compared with the imaging results. The Euler‐Euler simulation provides more accurate predictions of the bubble trajectory. The histograms of residence time and traveling distance given by the Euler‐Lagrange approach exhibit a reasonably regular pattern. With higher values of the inlet Reynolds number, stronger forces acting on the bubbles lead to a decreased but more uniform residence time. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2689–2701, 2018

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On-line measurement of separation dynamics in primary gas/oil/water separators: Challenges and technical solutions—A review

Cited by 60 publications

References 44 publications

Effect of Water Content, Temperature and Average Droplet Size on the Settling Velocity of Water-in-Oil Emulsions

Effect of Water Content, Temperature and Average Droplet Size on the Settling Velocity of Water-in-Oil Emulsions

Analysis of dynamic surfactant mass transfer and its relationship to the transient stabilization of coalescing liquid–liquid dispersions

Bubble‐separation dynamics in a planar cyclone: Experiments and CFD simulations

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