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TECHNICAL PAPERS

Transient Pig Motion Through Gas and Liquid Pipelines

[+] Author and Article Information
A. O. Nieckele, A. M. B. Braga, L. F. A. Azevedo

Department of Mechanical Engineering, Pontifı́cia Universidade Católica, 22453-900 Rio de Janeiro, Brazil

J. Energy Resour. Technol 123(4), 260-269 (Jun 07, 2001) (10 pages) doi:10.1115/1.1413466 History: Received November 03, 2000; Revised June 07, 2001
Copyright © 2001 by ASME
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References

Sullivan, J. M., 1981, “An Analysis of the Motion of Pigs Through Natural Gas Pipelines,” Master’s thesis, Department of Mechanical Engineering, Rice University.
Haun,  R., 1986, “Analysis and Modeling of Pipeline Dewatering and Startup, Part 1,” Pipeline Industry, pp. 37–41.
Burt, E. G. C., and MacDonald, R., 1997, “Pig Signaling, Location and Tracking,” The Pipeline Pigging Conference, Houston, PA.
Cordell, J. L., 1986, “Design of Pigs for Subsea Systems,” Proc., Conference on Subsea Pigging, Haugesund, Norway, Pipes & Pipelines International.
Gomes, M. G. F. M., 1994, “Finite Element Analysis of Pig Cups for Pipeline Cleaning,” Master’s thesis, Department of Mechanical Engineering, Federal University of Rio de Janeiro, Brazil (in Portuguese).
Short,  G. C., 1994, “The Pigging Technology Project: The First Three Years,” Pipes & Pipelines Int., 39-4, pp. 23–27
Azevedo, L. F. A. Braga, A. M. B., Nieckele, A. O., Naccache, M. F., and Gomes, M. G. F., 1995, “Simple Hydrodynamic Models for the Prediction of Pig Motion in Pipelines,” Pipeline Pigging Conference, Houston, PA.
Azevedo, L. F. A., Braga, A. M. B., and Gomes M. G. F. M., 1997, “Experimental Validation of Analytical Numerical Models for By-pass Flow and Contact Forces in Pig Cups,” The Pipeline Pigging Conference, Houston, PA.
Santos, O. G., Alhanati, J. S. and Bordalo, S. N., 1997, “Modeling and Performance of Pig-Lift,” XIV Brazilian Congress of Mechanical Engineering—COBEM, São Paulo, Brazil.
Azevedo, L. F. A. Braga, A. M. B., Nieckele, A. O., and Souza Mendes, P. R., 1999, “Simulating Pipeline Pigging Operations,” Proc. The Pipeline Pigging Conference, Stavanger, Norway, pp. 1–21.
Vianes Campo, E., and Rachid, F. B., 1997, “Modeling of Pig Motion Under Transient Fluid Flow,” Proc. XIV Brazilian Congress of Mechanical Engineering—COBEM, São Paulo, Brazil.
Nieckele, A. O., Braga, A. M. B., and Azevedo, L. F. A., 2000, “Transient Pig Motion Through Gas and Liquid Pipelines,” Proc. ETCE/OMAE2000 Joint Conference, ETCE2000/PROD-10317, New Orleans, LA.
Braga, A. M. B., Azevedo, L. F. A., Nieckele, A. O., and Souza Mendes, P. R., 1998, “Pipeline Pigging Simulation Project,” Final Report, Department of Mechanical Engineering, PUC-Rio, Brazil.
Wylie, E. B., and Streeter, V. L., 1978, Compressible Flow in Pipes, McGraw- Hill, New York, NY.
Fox, R. W., and McDonald, A. T., 1995, Introduction to Fluid Mechanics, McGraw Hill, New York, NY.
Patankar, S. V., 1980, Numerical Heat Transfer and Fluid Flow, Hemisphere Publishing Co., New York, NY.
Versteeg, H. K., and Malalasekera, W., 1995, An Introduction to Computational Fluid Dynamics—The Finite Volume Method, Longman Scientific & Technical, England.
Vingerhagen, A., and Falck, C., 1997, “The Development and Testing of a 40-in. High-Friction Pig,” Pipeline Pigging Conference, Houston, PA.

Figures

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Schematic view of a cleaning pig
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Control volume for unsteady, one-dimensional flow analysis
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Finite element model for the nonlinear postbuckling analysis
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Disk geometry and material data
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Postbuckling responses for disk A considering two different values for the friction coefficient
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Results of driving pressure measurement for a pig with two conical cups and varying number of disks
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Pressure variation with time for the riser
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Gas mass flow variation with time for the riser
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Liquid mass flow variation with time for the riser
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Pig velocity versus pig position for the riser
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Time variation of pig position for the riser
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Pipeline with inward protruding flanges
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Pig velocity versus pig position for pipeline with flanges
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Time variation of pig position for pipeline with flanges
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Pressure distribution along pipeline at different time steps; pipeline with flanges
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Pipeline inlet/exit mass flow rate time variation for a bypass pigging operation
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Bypass pigging operation: (a) driving pressure force; (b) pig velocity

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