Journal of Liaoning Petrochemical University
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Evaluation of Cathode Protection Effect on Hot Pipelines
WANG Yu-fu, LI Yan, MA Wen-xin, SUO Chuo, WANG Bo, SHEN Long-she
Abstract387)      PDF (255KB)(329)      
Liaohe Oilfield TESHI pipeline for Thermal oil undertake a significant transportation task, to prevent corrosion is the primary means of protection for the pipeline. Cathode protection of buried pipelines is one of the best corrosion-proof methods. So far, the main way of evaluating and measuring cathode protection is potential measurement. Using specimens are able to be more convenient to measure the potential, the corrosion rate and protection level under cathode protection were obtained by the methods of polarization and potential decline measurement, which is beneficial to monitor and control real-time cathode protection. 
 
Numerical Simulation of Water Film Drag-Reduction Transport of Super Heavy Oil
MA Wen-xin,LI Yan,SHEN Long-she,SUO Chuo,WANG Yu-fu,LIU Fu-ming
Abstract520)      PDF (296KB)(280)      
 
Water film lubricated transport of super heavy oil is one of the energy-saving technologies in the energy sector. The major difficulty of transporting super heavy oil is its very high viscosity, which leads to need vast energy consumption and increase the cost of transportation.The water film lubricated transport of super heavy oil seems to be one of the promising means to handle the situation. In this technique, low-viscosity liquid is formed into an annular film between the pipe wall and oil flow, because the oil does not come in contact with the wall and decreases resistance, the energy consumption and its cost decreases drastically. CFD software was used to do the numerical simulation base on experiments of water film lubricated transport in Teshi pipeline of Liao He oilfield.The simulation result is compared with experimental data which has been very good anastomosis. Therefore the study provides a guidance to the actual operation.
2011, 31 (3): 38-41. DOI: 10.3696/j.issn.1672-6952.2011.03.011