Journal ArticleDOI
Core-annular flows
TLDR
In this article, the authors give an overview of the issues posed by the science and technology of transporting heavy oils in a sheath of lubricating water. They touch on measures of energy efficiency, industrial experience, fouling, stability and models of levitation.Abstract:
This paper gives an overview of the issues posed by the science and technology of transporting heavy oils in a sheath of lubricating water. It touches on measures of energy efficiency, industrial experience, fouling, stability, models of levitation, and future directions.read more
Citations
More filters
Journal ArticleDOI
Investigation of two-phase flow pattern, void fraction and pressure drop in a microchannel
TL;DR: In this paper, a flow pattern map was developed based on the probability of appearance of each type of flow, and compared to the existing flow pattern maps obtained for ∼1-mm diameter channels.
Journal ArticleDOI
Transportation of heavy and extra-heavy crude oil by pipeline: A review
Rafael Martínez-Palou,María de Lourdes Mosqueira,Beatriz Zapata-Rendón,Elizabeth Mar-Juarez,César Bernal-Huicochea,Juan de la Cruz clavel-lopez,Jorge Aburto +6 more
TL;DR: In this article, the current and innovative technological solutions covering viscosity and friction reduction to move heavy and extra-heavy crude oils from the production site to the processing facilities are thoroughly discussed.
Journal ArticleDOI
Fluid coating on a fiber
TL;DR: In this article, the authors discuss the thickness of the liquid layer entrained by a solid drawn out of a bath, focusing on the case where the solid is a fiber or a wire.
Journal ArticleDOI
The effect of channel diameter on adiabatic two-phase flow characteristics in microchannels ☆
TL;DR: In this paper, the effect of channel diameter on two-phase flow was investigated to identify the phenomena which distinguish microchannels from minichannels, and a new slug flow model was also proposed to gain physical insight into the observed flow characteristics in micro-channels.
Journal ArticleDOI
Pipeline Transportation of Heavy Oils, a Strategic, Economic and Technological Challenge
TL;DR: In this article, a structural and rheological study was performed to assess the origin of the high viscosity and counteract its effect in heavy crude oil production in Venezuela and Canada.
References
More filters
Journal ArticleDOI
Nonlinear theory of film rupture
TL;DR: In this article, a nonlinear evolution equation is derived for h ( x, t ), the film thickness, and this strongly nonlinear partial differential equation is solved by numerical methods as part of an initial value problem for periodic boundary conditions in x, the lateral space dimension.
Journal ArticleDOI
The horizontal pipeline flow of equal density oil‐water mixtures
TL;DR: In this paper, the horizontal flow of equal density oil-water mixtures was investigated in a 1-inch diameter laboratory pipeline, with input oilwater ratios ranging from 0.05 to 3.0 ft/sec.
Journal ArticleDOI
Instability due to Viscosity and Density Stratification in Axisymmetric Pipe Flow
TL;DR: In this article, the stability of a steady, axisymmetric, laminar, primary flow composed of two fluids flowing concentrically in a straight circular tube is investigated by the method of small perturbations.