A Parametric Study of the Hydrodynamic Roughness Produced by a Wall-Coating Layer of Oil during the Pipeline Transportation of Heavy Oil-Water Mixtures

2015 ◽  
Author(s):  
S. Rushd ◽  
S. Sanders
Keyword(s):  
Heavy Oil ◽  
Parametric Study ◽  
Coating Layer ◽  
Pipeline Transportation ◽  
Oil Water

The relevance of “HLB” to de-emulsification of a mixture of heavy oil, water and clay

1980 ◽  
Vol 58 (5) ◽  
pp. 576-579 ◽  
Author(s):  
David G. Cooper ◽  
J. E. Zajic ◽  
Edward J. Cannel ◽  
Joan W. Wood
Keyword(s):  
Heavy Oil ◽  
Oil Water

Study employment perspectives of cavitation technolo- gies in pipeline transportation

2020 ◽  
pp. 41-46
Author(s):  
S.T. Aliyev ◽  
Keyword(s):  
Heavy Oil ◽  
Hydrodynamic Cavitation ◽  
Pipeline Transportation ◽  
Oil Viscosity ◽  
Operation Mechanism ◽  
Cavitation Process ◽  
Alternative Method

The paper explores the aspects negatively affecting the pipeline transportation of heavy oil and reviews the implementation possibility of cavitation processes as an alternative method of solving occurring problems. Based on the laboratory researches of abnormal oil from Azerbaijan fields, the parameters and technical upgrade of heavy oil in the system of hydrodynamic cavitation have been studied. Moreover, as a result of carried out experiments, the operation mechanism of cavitation process during reduction of heavy oil viscosity has been described and the implementation prospect of this technology in commercial scales analyzed as well.

scholarly journals The Influence of Burial Depth and Soil Thermal Conductivity on Heat Transfer in Buried CO2 Pipelines for CCS: A Parametric Study

2020 ◽  
Author(s):  
Babafemi Olugunwa ◽  
Julia Race ◽  
Tahsin Tezdogan
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Steady State ◽  
Thermal Resistance ◽  
Parametric Study ◽  
Flow Assurance ◽  
Burial Depth ◽  
Soil Thermal Conductivity ◽  
Dense Phase ◽  
Pipeline Transportation

Abstract Pipeline heat transfer modelling of buried pipelines is integral to the design and operation of onshore pipelines to aid the reduction of flow assurance challenges such as carbon dioxide (CO2) gas hydrate formation during pipeline transportation of dense phase CO2 in carbon capture and storage (CCS) applications. In CO2 pipelines for CCS, there are still challenges and gaps in knowledge in the pipeline transportation of supercritical CO2 due to its unique thermophysical properties as a single, dense phase liquid above its critical point. Although the design and operation of pipelines for bulk fluid transport is well established, the design stage is incomplete without the heat transfer calculations as part of the steady state hydraulic and flow assurance design stages. This paper investigates the steady state heat transfer in a buried onshore dense phase CO2 pipelines analytically using the conduction shape factor and thermal resistance method to evaluate for the heat loss from an uninsulated pipeline. A parametric study that critically analyses the effect of variation in pipeline burial depth and soil thermal conductivity on the heat transfer rate, soil thermal resistance and the overall heat transfer coefficient (OHTC) is investigated. This is done using a one-dimensional heat conduction model at constant temperature of the dense phase CO2 fluid. The results presented show that the influence of soil thermal conductivity and pipeline burial depth on the rate of heat transfer, soil thermal resistance and OHTC is dependent on the average constant ambient temperature in buried dense phase CO2 onshore pipelines. Modelling results show that there are significant effects of the ambient natural convection on the soil temperature distribution which creates a thermal influence region in the soil along the pipeline that cannot be ignored in the steady state modelling and as such should be modelled as a conjugate heat transfer problem during pipeline design.

Physicochemical Properties of Heavy Oil-Water Interface in the Context of Oil Removal from Seawater by Froth Flotation

2014 ◽  
pp. 279-294
Author(s):  
Louxiang Wang ◽  
Meghan Curran ◽  
Meijiao Deng ◽  
Qingxia Liu ◽  
Zhenghe Xu ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Heavy Oil ◽  
Froth Flotation ◽  
Water Interface ◽  
Oil Removal ◽  
Oil Water
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