Results 11 to 20 of about 1,968,703 (144)

Effect of Surfactants on Gas Holdup in Shear-Thinning Fluids [PDF]

open access: yesInternational Journal of Chemical Engineering, 2017
In this study, the gas holdup of bubble swarms in shear-thinning fluids was experimentally studied at superficial gas velocities ranging from 0.001 to 0.02 m·s−1.
Shaobai Li, Siyuan Huang, Jungeng Fan
doaj   +2 more sources

Enhancing random forest model prediction of gas holdup in internal draft airlift loop contactors with genetic algorithms tuning and interpretability [PDF]

open access: yesScientific Reports
Gas holdup in an Internal Loop Airlift Contactor (ILAC) is one of the primary hydrodynamic features that governs the performance of the contactor. Prediction of gas holdup assumes importance in the design of airlift contactor.
Hardik Prabhu   +8 more
doaj   +2 more sources

Photoelectric Composite Three-Phase Flow Sensor for Complex Oil and Gas Wells [PDF]

open access: yesSensors
Reliable measurement of multiphase flow is fundamental to production evaluation in complex oil and gas wells. However, conventional sensors often suffer from low integration, limited measurement capability, and potential environmental impact.
Qiang Chen   +4 more
doaj   +2 more sources

Modelling and optimization of an existing onshore gas gathering network using PIPESIM [PDF]

open access: yesHeliyon
Pakistan has limited natural gas reserves, and most are found onshore. This article reports on the problems of an onshore gas gathering network (GGN) analysed through steady-state simulation modelling using PIPESIM software.
Iftikhar Ahmed   +6 more
doaj   +2 more sources

Application of Imaging Algorithms for Gas–Water Two-Phase Array Fiber Holdup Meters in Horizontal Wells [PDF]

open access: yesSensors
The flow dynamics of low-yield horizontal wells demonstrate considerable complexity and unpredictability, chiefly attributable to the structural attributes of the wellbore and the interplay of gas–water two-phase flow.
Ao Li   +8 more
doaj   +2 more sources

Modelling of transient gas-liquid flow and pigging in pipes [PDF]

open access: yes, 1999
More and more transient gas-liquid operations in pipes are being successfully applied in the oil and gas industry. Pigging in two-phase pipelines, to remove liquid accumulation or for cleaning purposes, is an important transient operation.
Lima, P. C. R.
core   +7 more sources

Pressure Drop Hysteresis of Hydrodynamic States in Packed Tower for Foaming Systems [PDF]

open access: yes, 2011
An experimental investigation was carried out to determine the effects of gas and liquid flow velocities and surface tension on the two-phase phase pressure drop a in a downflow trickle bed reactor. Water and non-Newtonian foaming solutions were employed
Sodhi, Vijay, Gupta, Renu
core   +2 more sources

Effects of sparger design on the gas holdup and mass transfer in a pilot scale external loop airlift reactor

open access: yesSouth African Journal of Chemical Engineering, 2021
Three designs of static spargers were used in a pilot scale external loop airlift reactor to determine their effects on the gas holdup and mass transfer characteristics for an air-water system.
N. Naidoo, W.J. Pauck, M. Carsky
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

The Effect of Solid on the Homogenous- Heterogeneous Transition Region in Baffled and Unbaffled Bubble Column with Non-Newtonian Liquid [PDF]

open access: yesEngineering and Technology Journal, 2010
This research shows a comprehensive study on the effect of solid loadingand non-Newtonian liquid on the hydrodynamic parameter of gas holdup as wellas the critical values of gas holdup and gas velocity of transition zone fromhomogenous to heterogeneous ...
Asawer A. Alwasiti   +2 more
doaj   +1 more source

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