Results 21 to 30 of about 4,006,876 (282)

Numerical Simulation and Holdup Prediction of Oil-Water Two-Phase in Low Yield Shale Oil Near Horizontal Wells

open access: yesCejing jishu
The production of shale oil wells is typically low, and logging instruments such as the flow scanning imager (FSI) may exhibit poor turbine response in low-production wells, leading to measurement deviations and reduced interpretation accuracy.
QIN Honglong   +3 more
doaj   +2 more sources

Application of Array Imaging Algorithms for Water Holdup Measurement in Gas–Water Two-Phase Flow Within Horizontal Wells [PDF]

open access: yesSensors
Gas–water two-phase flow in horizontal and inclined wells is significantly influenced by gravitational forces and spatial asymmetry around the wellbore, resulting in complex and variable flow patterns.
Haimin Guo   +7 more
doaj   +2 more sources

Impact of Solid Particle Concentration and Liquid Circulation on Gas Holdup in Counter-Current Slurry Bubble Columns

open access: yesFluids
In this study, in a three-phase reactor with a rectangular cross-section, the effects of liquid circulation rates and solid particle concentration on gas holdup and bubble size distribution (BSD) were investigated.
Sadra Mahmoudi, Mark W. Hlawitschka
doaj   +2 more sources

The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Gas holdup was investigated in a gas-liquid and gas-liquid-solid reciprocating plate column (RPC) under various operation conditions. Aqueous carboxymethyl cellulose (sodium salt, CMC) solutions were used as the liquid phase, the solid phase was spheres ...
Stamenković Ivica S.   +5 more
doaj   +3 more sources

Methods and application for water holdup calculation and flowing image based on array electromagnetic wave instrument in horizontal water-oil wells [PDF]

open access: yesYouqicang pingjia yu kaifa, 2023
The accurate calculation of the water holdup and the inversion of fluid distribution for multi-phase flow play a crucial role in understanding the development performance in horizontal wells.
CHEN Meng,XIE Weifeng,ZHANG Yu,YANG Guofeng,LIU Xiangjun
doaj   +3 more sources

Hydrodynamics of a pilot plant spray extraction column [PDF]

open access: yesActa Periodica Technologica, 2018
The hydrodynamic characteristics of the liquid-liquid system of toluene-water in a pilot plant spray extraction column were experimentally determined.
Sovilj Milan N.   +2 more
doaj   +1 more source

Gas-liquid plug flow liquid holdup measurement using semantic segmentation

open access: yesYou-qi chuyun, 2021
Liquid holdup is one of the most important parameters of gas-liquid two-phase flow. Affected by the image noise, the traditional liquid holdup measurement method based on image processing is difficult to accurately extract the gas-liquid interface ...
Fachun LIANG   +4 more
doaj   +1 more source

Analysis of Conductance Probes for Two-Phase Flow and Holdup Applications [PDF]

open access: yesSensors, 2020
In this paper we perform an analysis of the conductance probes used in two-phase flow applications especially for two-phase flow tomography of annular flow, to measure the waves produced in the interface with different boundary conditions without perturbing the flow, and in addition we examine the holdup applications as measuring the average void ...
José Luis Muñoz-Cobo   +3 more
openaire   +5 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

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