Heavy oil transportation through steam heating: An analytical and numerical approach

Santos, Lorena A. dos; Ribeiro, Daniel da Cunha; Romero, Oldrich Joel

doi:10.1016/j.petrol.2020.107932

Cited by 13 publications

(3 citation statements)

References 29 publications

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“…Based on a review of the methods for transporting heavy and bituminous oils [7][8][9][10][11], the following methods, most common in the practice of foreign companies, can be distinguished: heating, dilution, emulsification, and hydrotransport [5,6].…”

Section: Analysis Of Transport Methods For High-viscosity Oilmentioning

confidence: 99%

Study of the Rheological Properties and Flow Process of High-Viscosity Oil Using Depressant Additives

Nikolaev,

Plotnikova

2023

Energies

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This article analyzes the dependence of the choice of the method of transportation of high-viscosity oil on the rheological characteristics of the oil in question. An analysis of existing rheological models of high-viscosity oil was carried out, and it was found that a number of models have certain features (model coefficients, their purpose, quantity) that affect the choice of a rheological model of oil. The dependences for determining the coefficient of dynamic viscosity when pumping high-viscosity oil with the addition of pour-point depressants were studied, and the dependence of the hydraulic resistance coefficient when depressants are added to the oil was obtained. A method for choosing a rational oil heating temperature and diluent concentration to achieve the maximum pipeline performance is substantiated.

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Section: Analysis Of Transport Methods For High-viscosity Oilmentioning

confidence: 99%

Study of the Rheological Properties and Flow Process of High-Viscosity Oil Using Depressant Additives

Nikolaev,

Plotnikova

2023

Energies

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“… 6 At present, pipeline transportation of heavy oil is mainly achieved through three ways: first, viscosity reduction, which refers to reducing the viscosity of crude oil. Possible measures include heating (preheating heavy oil or heating pipelines), 7 dilution (adding diluent with lower viscosity than the heavy oil), 8 emulsification (adding surfactant to heavy oil to form oil-in-water emulsion), 9 etc. ; second, drag reduction, which refers to reducing the frictional resistance between heavy oil and the pipe wall.…”

Section: Introductionmentioning

confidence: 99%

Predictive Model of Restart-Up Pressure Drop after Shutdown for Heavy Oil–Water Ring Transportation Pipeline

Yin,

Wen,

Lin

et al. 2024

ACS Omega

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Aiming at the problem of restart-up for a heavy oil−water ring transportation pipeline due to instability and damage of the water ring, based on the self-developed design of a small indoor loop simulation experimental device and taking four kinds of ordinary heavy oil in the Lvda oilfield as the research object, the change trend of restart-up pressure drop with time is experimentally studied when the pipeline is restarted-up after shutdown at a constant water flow. On the basis of the regression analysis of the orthogonal restart-up experimental data of four factors (oil holdup, oil viscosity, standstill period, and water cleaning superficial velocity) and mixed levels by the statistical product and service solutions statistical analysis software, a multivariate nonlinear restartup maximum pressure drop prediction model is established. Through analysis of the characteristics of each stage of the restart-up process, an exponential decay model of restart-up pressure drop with time is created. The research results show that the variations in restart-up pressure drop with time can be divided into two stages: the attenuation stage and the equilibrium stage. The predicted value of restart-up pressure drop with time is in good agreement with the measured one, and the goodness of fit is very close to 1. The maximum restart-up pressure drop rises along with the increase in oil holdup, oil viscosity, standstill period, and water cleaning superficial velocity. The restart-up time prolongs with the increase in oil holdup, oil viscosity, and standstill period but shortens with the increase in water cleaning superficial velocity.

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“…As the extraction of light crude oil continues, the importance of heavy crude oil resources has increased, but its high viscosity presents challenges for extraction and transportation [ 1 ]. A variety of methods are employed to mitigate the viscosity of heavy crude oil, including emulsification, heating, and dilution [ 2 , 3 , 4 ]. However, these approaches have inherent drawbacks, such as high costs, excessive energy consumption, and the need for subsequent processing.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Simulation Studies of Imidazolium Chloride Ionic Liquids with Different Alkyl Chain Lengths for Viscosity Reductions in Heavy Crude Oil: The Effect on Asphaltene Dispersion

Xiang,

Zhu,

Liu

et al. 2024

Molecules

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Heavy crude oil poses challenges in terms of extraction and transportation due to its high viscosity. In the pursuit of effective methods to reduce viscosity in heavy crude oil, this study investigates the potential of imidazolium chloride ionic liquids with varying alkyl chain lengths as viscosity reducers. The experimental results demonstrate that the addition of 1-dodecyl-3-methylimidazole chloride ([C12-MIM]Cl) leads to a maximum viscosity reduction of 49.87%. Solubility parameters were calculated based on characterization of the average molecular structure of the asphaltenes. The viscosity reduction effect is enhanced when the solubility parameter of the ionic liquid closely matches that of the asphaltene. The initial asphaltene deposition point of heavy crude oil is increased from 63% to 68% with the addition of 150 mg/L [C12-MIM]Cl. Furthermore, the average particle size of asphaltene deposits decreases from 79.35 μm to 48.54 μm. The viscosity of heavy crude oil is influenced by the aggregation of asphaltenes. The ability of ionic liquids, especially those with longer alkyl chains, to disperse asphaltene molecules and reduce viscosity has been confirmed through molecular dynamics and quantum mechanical simulations.

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Heavy oil transportation through steam heating: An analytical and numerical approach

Cited by 13 publications

References 29 publications

Study of the Rheological Properties and Flow Process of High-Viscosity Oil Using Depressant Additives

Study of the Rheological Properties and Flow Process of High-Viscosity Oil Using Depressant Additives

Predictive Model of Restart-Up Pressure Drop after Shutdown for Heavy Oil–Water Ring Transportation Pipeline

Experimental and Simulation Studies of Imidazolium Chloride Ionic Liquids with Different Alkyl Chain Lengths for Viscosity Reductions in Heavy Crude Oil: The Effect on Asphaltene Dispersion

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