Results 31 to 40 of about 2,370 (195)

Feasibility Study on Downhole Gas–Liquid Separator Design and Experiment Based on the Phase Isolation Method

open access: yesApplied Sciences, 2021
As oil exploitation enters its middle and late stages, formation pressure drops, and crude oil degases. In production profile logging, the presence of the gas phase will affect the initial oil–water two-phase flowmeter’s flow measurement results.
Yuntong Yang   +5 more
doaj   +1 more source

Salinity Independent Flow Measurement of Vertical Upward Gas-Liquid Flows in a Small Pipe Using Conductance Method

open access: yesSensors, 2020
Flow measurement in gas-liquid two-phase flow is always a challenging work, because of the non-uniform phase distribution, severe slippage effect between phases, and different flow structures.
Dayang Wang   +3 more
doaj   +1 more source

Experimental Investigation On The Holdup Distribution Of Oil-Water Two-Phase Flow In Horizontal Parallel Tubes

open access: yes, 2008
An experimental investigation was conducted to study the holdup distribution of oil and water two-phase flow in two parallel tubes with unequal tube diameter.
Chang Y(常英)   +4 more
core   +1 more source

Hydrodynamics of pulsed sieve-plate extraction columns [PDF]

open access: yesHemijska Industrija, 2020
This paper presents a review of some hydrodynamic parameters in pulsed sieve-plate extraction columns. The hydrodynamic parameters in liquid-liquid systems in these columns were analyzed regarding the effects of operating and geometrical parameters.
Sovilj Milan N.   +1 more
doaj   +1 more source

Pressure gradient prediction of gas-liquid two-phase pipe flow in horizontal gas wells

open access: yesShenzhen Daxue xuebao. Ligong ban, 2022
Accurate prediction of pressure gradient in gas wells is the theoretical basis for dynamic analysis, optimization of production and deliquification technologies design.
LUO Chengcheng   +7 more
doaj   +1 more source

Optimal design of spiral electromagnetic sensor for phase holdup measurement

open access: yes, 2014
Electromagnetic sensors can obtain the distributions of the medium through excitation and sensing coils distributed on the boundary. In this paper, a novel spiral electromagnetic sensor was proposed for phase holdup measurement.
Yin, Wuliang, Xu, Kai, Zhao, Qian
core   +1 more source

Desenvolvimento e aplicações de um biorreator airlift com circulação externa [PDF]

open access: yes, 1997
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro TecnologicoUm reator airlíft com circlação externa construído em vidro foi desenvolvido utilizando relações geométricas sugeridas na literatura e dados obtidos através de estudos ...
Pedrini, Márcia Regina da Silva
core  

Numerical Simulation of Gas-Liquid Flow in a Bubble Column by Intermittent Aeration in Newtonian Liquid/Non-Newtonian Liquid

open access: yesInternational Journal of Chemical Engineering, 2018
The dynamic behaviors of gas-liquid two-phase flow were simulated in a lab-scale intermittent bubble column by Euler-Euler two-fluid model coupled with the PBM (population balance model) using two different liquid phases, i.e., Newtonian fluid (water ...
Zheng Xipeng   +4 more
doaj   +1 more source

Attenuation law of MWD pulses in aerated drilling

open access: yesPetroleum Exploration and Development, 2012
A mathematical model for predicting the attenuation of measurement while drilling (MWD) pressure pulses in aerated drilling was proposed using the two-phase flow model and considering the momentum and energy exchange at the phase interface, gravity of ...
Hongtao LI   +5 more
doaj   +1 more source

Study on Optical Fiber Gas-Holdup Meter Signal Denoising Using Improved Threshold Wavelet Transform

open access: yesIEEE Access, 2023
The optical fiber probe gas-holdup meter is a new logging tool, which can be used to measure the gas-holdup of oil-gas-water three-phase flow during production logging.
Shengxue Du, Shujun Chen
doaj   +1 more source

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