Ocean Engineering Equipment and Technology ›› 2015, Vol. 2 ›› Issue (1): 32-35.
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Hai-yuan YAO, Qing-ping LI, Bing CHENG, Shao-kai CHEN, Yong-fei LIU
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Abstract:
There exist many problems such as high pigging velocity and long pigging slug in the pigging process in natural gas liquid pipelines by using traditional pig. In order to solve these problems, bypass pigging technology has been developed. To analyze relevant factors in the design and application of bypass pig, a subsea pipeline pigging model is built by using OLGA software (version 7.2) and the factors including bypass ratio of the bypass pig, pipe diameter, gas liquid ratio, pig weight etc. have been analyzed, which can provide reference for the design and application of bypass pig.
Key words: subsea oil and gas pipeline, bypass pig, bypass ratio, pigging, influence factor
CLC Number:
TE832.3+6
Hai-yuan YAO, Qing-ping LI, Bing CHENG, Shao-kai CHEN, Yong-fei LIU. Analysis of Influence Factors for Pigging Effectiveness of Bypass Pig in Natural Gas Liquid Pipelines[J]. Ocean Engineering Equipment and Technology, 2015, 2(1): 32-35.
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URL: https://www.qk.sjtu.edu.cn/oeet/EN/
https://www.qk.sjtu.edu.cn/oeet/EN/Y2015/V2/I1/32
Fig.1
Pigging slug reduction percentage versus pig bypass ratio for different pipe diameters
Fig.2
Pig movement conditions in pipeline versus pig bypass ratio for different pipe diameters
Fig.3
Pig movement conditions in pipeline versus time at different gas-liquid ratios for the pipe diameter of 6 inch
Fig.4
Pig movement conditions in pipeline versus time at different pig masses for the pipe diameter of 6 inch
