西南石油大学学报(自然科学版) ›› 2016, Vol. 38 ›› Issue (5): 173-178.DOI: 10.11885/j.issn.16745086.2014.10.09.03

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Geometry Parameter Optimization of the New Flow Conditioner Wavy Pipe

ZHU Yiliang1, WEI Fei2, MA Yunlong1, RAO Danjiao1, JI Peng3   

  1. 1. Beijing Branch, China Petroleum Engineering Co. Ltd., Haidian, Beijing 100086, China;
    2. Sinochem Oil Co. Ltd., Xicheng, Beijing 100031, China;
    3. China Huanqiu Contracting & Engineering Corporation, Chaoyang, Beijing 100012, China
  • Received:2014-10-09 Online:2016-10-01 Published:2016-10-01

Abstract: This paper simulates the gas-liquid multi-phase flow in the wavy pipes. The effects of the wavy pipe on the laminar flow behavior and the accuracy of the numerical model are investigated. The effects of the bend angle, the ratio of the bend radius to pipe diameter and the number of bends on the flow behavior are analyzed. The geometry parameters of wavy pipes are optimized. The results show that the wavy pipe is effective in regulating the flow pattern and in mitigating severe slugging. The larger the bend angle, the more effective regulation of the flow pattern. The reasonable range of the bend angle is 90°~130° and when the bend angle is 90° or 120°, the wavy pipe is easier to process. Increasing the bend radius and reducing the internal diameter of the tube can increase the ratio of the bend radius to pipe diameter and enhance the regulation effect. With consideration of the investment, reducing pipe diameter is more suitable. With the increase of the number of bends, the wavy pipe regulates the flow pattern more effectively. The number of bends should be determined according to installation space and investment.

Key words: severe slugging, wavy pipes, geometry parameter, optimization, numerical analysis

CLC Number: