Experimental investigation of the parameters that affect droplet size and distribution for design calculations of two-phase separators

Pun, Kul; Hamad, Faik; Ahmed, Tariq; Ugwu, Johnson; Najim, Safa A.; Eyers, James; Lawson, Gary; Russell, Paul

doi:10.1016/j.heliyon.2023.e15397

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…Depending on their sizes, water droplets exhibit different sedimentation times. 6 In this domain, various advanced approaches have been developed to enhance the separation of emulsion phases. These methods encompass the utilization of mechanical forces, 7 thermal techniques, 8 microwave irradiation, 9 electrostatic forces, 10 chemical agents, 11 composite adsorption, 12,14 demulsifying agents, 13 and membrane filtration 15−17 as effective means to optimize emulsion phase separation.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Various techniques are employed for oil–water separation, including external forces, self-induction, gravity forces, and buoyancy forces. − In gravity separator setups, the sedimentation time and residence velocity of water droplets are closely related. Depending on their sizes, water droplets exhibit different sedimentation times . In this domain, various advanced approaches have been developed to enhance the separation of emulsion phases.…”

Section: Introductionmentioning

confidence: 99%

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Innovative Method for Water-in-Oil Emulsion Treatment Using Atmospheric Nonthermal-Plasma Technology

Mir,

Kooshki

2023

Langmuir

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The field of plasma−liquid interactions is rapidly growing, with increasing publications across applications. While plasma's interactions with water and oil have been researched, there is a notable gap in the study of plasma−emulsion interactions and their practical applications. Investigating plasma−emulsion interactions offers a dual advantage, as demonstrated in this study, as it is applicable to both water/oil separation and emulsion stabilization processes. This study introduces a groundbreaking approach utilizing the fountain dielectric barrier discharge (FDBD) plasma reactor. The reactor exposes a model emulsion to different plasma gases, such as air, nitrogen, argon, and ammonia, along with varying parameters of plasma input voltage and treatment time. Consequently, due to demulsification, the emulsion segregates into distinct water and oil phases. Remarkably, the results demonstrate that short-term plasma treatment leads to the separation of over 99% of emulsified water. However, prolonged exposure to plasma for around 7 min reveals a decrease in the volume of freeseparated water, implying the occurrence of stable emulsion formation instead of further demulsification. To optimize experimental conditions for compliance with regulatory requirements, the study employs the response surface methodology (RSM). Adapting pH and separation contours in three-dimensional (3D) RSM plots shows that achieving higher separation is likely associated with higher pH levels in air, nitrogen, and argon plasmas. Notably, the plasma treatment involving ammonia gas elevates the pH level and yields the highest degree of separation compared with air, nitrogen, or argon plasmas.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Innovative Method for Water-in-Oil Emulsion Treatment Using Atmospheric Nonthermal-Plasma Technology

Mir,

Kooshki

2023

Langmuir

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Experimental measurements on the microbubble characteristics and dissolved oxygen (DO) in water using single and twin-Venturi type microbubble generators

Hamad,

Pun,

Alessio

et al. 2023

Chemical Engineering Science

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Measurement of high water-cut heavy oil flow based on differential pressure of swirling flow

Wang,

Zhang,

Liao

et al. 2024

Physics of Fluids

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Real-time measurement of heavy oil production is critical to ensure stable production. Due to the complex kinematic characteristics of heavy oil, existing methods cannot accurately measure its flow rate and water cut. In this paper, a novel method is proposed to measure the high water-cut heavy oil flow by using the differential pressure of the two-phase swirling flow in the pipe. For the swirling flow in the pipe, the radial differential pressure and the axial differential pressure exist simultaneously, which are very sensitive to the flow rate and water cut. The formation mechanism of the two kinds of differential pressure is analyzed theoretically, and their relationship with flow rate and water cut is studied by experiment and numerical simulation. The measurement model of heavy oil–water two-phase flow on the above relations is validated by field experiments. The radial differential pressure is only related to the two-phase flow rate, varying exponentially with the flow rate when the oil viscosity is greater than 10 000 mPa s. This characteristic is very useful for the heavy oil–water two-phase flow measurement. The axial differential pressure decreases with the increase in water cut in cases of water cut <85%, while it increases with the water cut in cases of water cut >85%. With the increase in water cut, the ratio of axial differential pressure to radial differential pressure first decreases and then increases. The relative errors of the established measurement model for flow rate and water cut are 0.19%–17.92% and 0.21%–15.5%, respectively, and more than 70% of the measurements with a relative error of less than 10%. The study of the heavy oil–water two-phase flow measurement method can optimize the measurement cost and accelerate the process of intelligent oilfield construction.

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Experimental investigation of the parameters that affect droplet size and distribution for design calculations of two-phase separators

Cited by 4 publications

References 11 publications

Innovative Method for Water-in-Oil Emulsion Treatment Using Atmospheric Nonthermal-Plasma Technology

Innovative Method for Water-in-Oil Emulsion Treatment Using Atmospheric Nonthermal-Plasma Technology

Experimental measurements on the microbubble characteristics and dissolved oxygen (DO) in water using single and twin-Venturi type microbubble generators

Measurement of high water-cut heavy oil flow based on differential pressure of swirling flow

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