Review of oil–water through pipes

Ismail, Abdul Samad; Ismail, Issham; Zoveidavianpoor, Mansoor; Mohsin, Rahmat; Piroozian, Ali; Misnan, Mohd Shahir; Sariman, Mior Zaiga

doi:10.1016/j.flowmeasinst.2015.07.015

Cited by 55 publications

(28 citation statements)

References 124 publications

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“…Recent studies on liquid-liquid flow have focused more on high viscous oil-water flow due to its relevance to the petroleum industry activities enhanced oil recovery (EOR) and heavy oil transportation [40]. Annular flow, a flow pattern associated with the highly viscous oil-water flow system, is more pronounced in those studies where high viscosity oil is used [41][42][43].…”

Section: Experimental Studies On Liquid-liquid Flow In Horizontal Pipmentioning

confidence: 99%

“…Annular flow, a flow pattern associated with the highly viscous oil-water flow system, is more pronounced in those studies where high viscosity oil is used [41][42][43]. Detailed studies of the annular flow pattern are necessary to reduce the head-loss due to high oil viscosity during transportation [40,44]. Charles et al [7] suggested that high and low viscosity oils behave differently due to their wall wetting effects.…”

Section: Experimental Studies On Liquid-liquid Flow In Horizontal Pipmentioning

confidence: 99%

“…In terms of similarity, they observed that the flow patterns of both mineral oil-water and crude oil-water flow systems could be grouped into oil-dominated, water-dominated, intermittent, and stratified regions. The presence of some natural surfactants or depositions in crude oil, such as resin and asphaltenes caused a delay in the transition from one flow pattern to another [40,48].…”

Section: Experimental Studies On Liquid-liquid Flow In Horizontal Pipmentioning

confidence: 99%

“…The choice of mixing device is essential in the experimental studies, as each device promotes the formation of a particular flow pattern. An injecting device promotes core-annular flow [40] whereas cones or special "Y" mixing devices support stratification of flow to avoid mixing [25]. A dimensionless length (L/D) is defined as the ratio of the length of the pipeline from the entrance to the observation point (sometimes equal to the length of the test section) to the pipe diameter.…”

Section: Experimental Studies On Liquid-liquid Flow In Horizontal Pipmentioning

confidence: 99%

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Liquid-Liquid Flow Pattern Prediction Using Relevant Dimensionless Parameter Groups

et al. 2020

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Accurate predictions of flow patterns in liquid-liquid flow are critical to the successful design and operation of industrial and geo-energy systems where two liquids are jointly transported. Unfortunately, there is no unified flow pattern map, because all published maps are based on limited ranges of dimensional parameters. Dimensional analysis was performed on oil-water horizontal flows, to obtain some relevant dimensionless parameter groups (DPG) for constructing flow pattern maps (FPM). The following combinations of DPG were used: (i) the ratio of mixture Reynolds number to Eötvös number versus water fraction, (ii) the ratio of Weber number to Eötvös number versus water fraction, (iii) the mixture Froude number versus water fraction, (iv) the water Froude number versus oil Froude number, (v) the ratio of gravity force to viscous force versus water fraction. From twelve published experimental studies, 2696 data points were gathered and analysed covering a variety of flow patterns including stratified, stratified mixed, dispersed oil in water, dispersed water in oil, annular and slug flows. Based on the performed analysis, it was found that flow patterns could occupy more than one isolated region on the DPG-based flow pattern map. None of the combinations of DPG can mark out all the considered flow patterns, however, some combinations of DPG are particularly suitable for marking out the regions associated with some flow patterns.

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Section: Experimental Studies On Liquid-liquid Flow In Horizontal Pipmentioning

confidence: 99%

Section: Experimental Studies On Liquid-liquid Flow In Horizontal Pipmentioning

confidence: 99%

Section: Experimental Studies On Liquid-liquid Flow In Horizontal Pipmentioning

confidence: 99%

Section: Experimental Studies On Liquid-liquid Flow In Horizontal Pipmentioning

confidence: 99%

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Liquid-Liquid Flow Pattern Prediction Using Relevant Dimensionless Parameter Groups

et al. 2020

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“…The system has been extensively evaluated for applications in hydrocarbons multi-phase flow measurement and monitoring [7][8][9][10][11][12][13][14][15]. In this application, one of the requirements for ECT system is to be able to generate at least 100 frames per second.…”

Section: Introductionmentioning

confidence: 99%

Comparative Performance Evaluation of Entropic Thresholding Algorithms Based on Shannon, Renyi and Tsallis Entropy Definitions for Electrical Capacitance Tomography Measurement Systems

Mwambela¹

2018

IJISA

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Abstract-The concept of entropy as a measure of information has been extensively applied in information theory and related fields. The complex nature of information has resulted in some proposed entropy definitions. In image processing, the entropy concept has been used in developing thresholding techniques based on maximum entropy principles for image segmentation, enhancement and object detection purposes. In this article, entropy definitions are analysed to establish their relationship and after that evaluate their performance in image thresholding. Static simulated data from Electrical Capacitance Tomography measurement system for annular and stratified flows in multiphase hydrocarbons production has been used. Performance evaluation results of thresholding algorithms using Renyi entropy has shown to improve the measurements, particularly for stratified flow regimes. The improvement is solely based on the entropy definition, and it has been observed the introduced controlling parameters do not affect its performance. Renyi entropic thresholding algorithm is relatively robust as it is independent of the controlling parameter q and the grey level resolution. Therefore, there is the potential possibility of using Renyi entropic thresholding to improve measurements in hydrocarbons flow measurement using Electrical Capacitance Tomography measurement system.

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Advances in Triboelectric Flow Sensor

Zou,

Wang,

et al. 2023

Adv Materials Technologies

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With the rapid development of advanced materials and manufacturing technologies, flow sensors have made significant progress in the field of mechanical engineering, which could cater to the development trend of the Internet of Things (IoT) and the ongoing Fourth Industrial Revolution. However, traditional power supply modes such as lithium batteries require regular recharging or replacement, which greatly causes too much inconvenience and maintenance consumption, and may also pose potential risks to the marine environment. The triboelectric nanogenerators (TENGs), based on the coupling effect of contact electrification and electrostatic induction, have been demonstrated to convert mechanical movements of the fluid into electrical signals with various features such as flexibility, conformability, and user‐friendliness. This review systematically summarizes for the first time the fundamental working mechanism, rational structural design, and analysis of practical application scenarios of triboelectric flow sensor as an emerging technology for flow monitoring of the Industrial IoT. According to the different fluid objects monitored, the latest representative achievements of triboelectric flow sensors can be divided into gas flow sensors, liquid flow sensors, and two‐phase flow sensors. Finally, the current challenges and future development directions of triboelectric flow sensors are examined, which can promote the further development of the field of the flow sensors.

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Review of oil–water through pipes

Cited by 55 publications

References 124 publications

Liquid-Liquid Flow Pattern Prediction Using Relevant Dimensionless Parameter Groups

Liquid-Liquid Flow Pattern Prediction Using Relevant Dimensionless Parameter Groups

Comparative Performance Evaluation of Entropic Thresholding Algorithms Based on Shannon, Renyi and Tsallis Entropy Definitions for Electrical Capacitance Tomography Measurement Systems

Advances in Triboelectric Flow Sensor

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