Experimental determination of pressure drop and statistical properties of oil-water intermittent flow through horizontal pipe

Poesio, Pietro

doi:10.1016/j.expthermflusci.2008.04.009

Cited by 10 publications

(3 citation statements)

References 29 publications

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“…This is attributed to the relatively higher interfacial forces (as indicated by the Eőtvős number) in the 19 mm pipe in comparison to the 25.4 mm pipe. This also agrees with the speculation made by Poesio (2008). Visual observation from both pipes revealed that as superficial water velocity increased, the bubbles lengths also decreased.…”

Section: Bubble Flow (Bb)supporting

confidence: 90%

Experimental investigation on flow patterns and pressure gradient through two pipe diameters in horizontal oil–water flows

Al-Wahaibi

Al-Ajmi

et al. 2014

Journal of Petroleum Science and Engineering

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Section: Bubble Flow (Bb)supporting

confidence: 90%

Experimental investigation on flow patterns and pressure gradient through two pipe diameters in horizontal oil–water flows

Al-Wahaibi

Al-Ajmi

et al. 2014

Journal of Petroleum Science and Engineering

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“…Recently, the interest in oil–water two-phase flow has greatly increased as a result of the outstanding interdisciplinary problems to the crude oil exploitation, transportation, reservoir, and production performance monitoring . Understanding the dynamic behaviors of oil–water two-phase flow is crucial to important problems, such as pressure drop or water holdup predicting in the oil wells and pipelines. − The flow pattern, pressure drop, and water holdup are the primary concerns in the previous studies, and their measurement of two-phase flow is related to not only the flow stability but also the phase inversion phenomena. − Therefore, to realize the reasonable design and safe operation of pipelines, it is necessary to clarify the flow pattern as well as slip degree of oil–water two-phase flow in the pipeline. However, as a result of the interplay among many complex factors, such as the pipe diameter parameter, fluid property, experimental environment condition, and way of introduction of each phase, the study of oil–water two-phase flow exhibits a characteristic of diversity.…”

Section: Introductionmentioning

confidence: 99%

Reliable Evaluation of Oil–Water Two-Phase Flow Using a Method Based on Terahertz Time-Domain Spectroscopy

et al. 2017

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Oil–water two-phase flow widely exists in the petroleum industry, such as crude oil production and transportation. The flow pattern and slip phenomenon of oil–water two-phase flow have an important impact on the rational design and management of oil wells and pipelines. Because of the extremely high sensitivity of the terahertz wave to hydrogen bonding, terahertz time-domain spectroscopy (THz-TDS) is used to study oil–water two-phase flows with the input water fraction ranging from 0.5 to 5.0%. The flow rate is controlled in the range of 0.6–0.0 m3/h, and the flow pattern transition and slip phenomenon in horizontal circular pipes have been studied experimentally and theoretically. In a word, the flow pattern and critical flow rate for the flow pattern transition can be distinguished by amplitudes of THz-TDS of the oil–water two-phase flows. The work indicates that, at a low Q value, the flow pattern is an oil layer over a dispersion of water-in-oil (O & DW/O) flow and the ratio of in situ oil to water velocity is smaller than those at a high Q value, where the flow is a water-in-oil (W/O) flow.

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“…The periods and the amplitudes of the oscillations increased with the increase of thermal power and inlet subcooling [14]. Oil-water mixtures were used by Poesio [15] and Sotgia et al [16] in two-phase flow systems to analyse the combined effect of both fluids on dynamic instabilities. …”

Section: Introductionmentioning

confidence: 99%

Experimental Research of Dynamic Instabilities in the Presence of Coiled Wire Inserts on Two‐Phase Flow

Ömeroğlu

Çomaklı

Karagöz

et al. 2013

The Scientific World Journal

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The aim of this study is to experimentally investigate the effect of the coiled wire insertions on dynamic instabilities and to compare the results with the smooth tube for forced convection boiling. The experiments were conducted in a circular tube, and water was used as the working fluid. Two different pitch ratios (H/D = 2.77 and 5.55) of coiled wire with circular cross-sections were utilised. The constant heat flux boundary condition was applied to the outer side of the test tube, and the constant exit restriction was used at the tube outlet. The mass flow rate changed from 110 to 20 g/s in order to obtain a detailed idea about the density wave and pressure drop oscillations, and the range of the inlet temperature was 15–35°C. The changes in pressure drop, inlet temperature, amplitude, and the period with mass flow rate are presented. For each configuration, it is seen that density wave and pressure drop oscillations occur at all inlet temperatures. Analyses show that the decrease in the mass flow rate and inlet temperature causes the amplitude and the period of the density wave and the pressure drop oscillations to decrease separately.

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Experimental determination of pressure drop and statistical properties of oil-water intermittent flow through horizontal pipe

Cited by 10 publications

References 29 publications

Experimental investigation on flow patterns and pressure gradient through two pipe diameters in horizontal oil–water flows

Experimental investigation on flow patterns and pressure gradient through two pipe diameters in horizontal oil–water flows

Reliable Evaluation of Oil–Water Two-Phase Flow Using a Method Based on Terahertz Time-Domain Spectroscopy

Experimental Research of Dynamic Instabilities in the Presence of Coiled Wire Inserts on Two‐Phase Flow

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