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Keywords: prediction
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Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 3–7, 2021
Paper Number: PSIG-2109
... critical velocity viscosity prediction upstream oil & gas correlation sand concentration machine learning engineering particle sand transport application experimental data algorithm particle transport artificial intelligence concentration psig 2109 pipeline dataset...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 14–17, 2019
Paper Number: PSIG-1910
... and by whom the paper was presented. Write Librarian, Pipeline Simulation Interest Group, 945 McKinney, Suite #106, Houston, TX 77002, USA info@psig.org. ABSTRACT A novel model is used to predict the inception moment and location of a phenomenon known as the column separation or slack line. The...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 6–9, 2014
Paper Number: PSIG-1427
... developed in-house and used for the current PSIG 1427 A Novel Model for Prediction of Crack Propagation in Gas Transmission Pipelines Fereshteh Bahramian, Spectra Energy, Hadi Mohammadi, University of British Columbia, Canada 2 FERESHTEH BAHRAMIAN, HADI MOHAMMADI PSIG 1427 study. METHOD Fatigue Crack...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, April 16–19, 2013
Paper Number: PSIG-1305
... provided an Equation of State (EoS) with appropriate density prediction is chosen. For case 2, only one simulation code could be used reliably, as all the other tools showed to have problems to calculate the flow accurately when the pipeline conditions approached the critical point of CO 2 . This...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, April 16–19, 2013
Paper Number: PSIG-1307
... has undertaken a programme of shock tube tests to investigate the decompression behaviour of CO 2 and CO 2 -rich mixtures in the gas phase and the liquid (dense) phase. An understanding of the decompression behaviour is required in order to predict the toughness required to arrest a running ductile...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, April 16–19, 2013
Paper Number: PSIG-1309
... cause energetic surge events during rapid shutdown transients. Many modeling tools are used to predict the behavior of compressor systems during fast transient events. Even more, centrifugal compressor dynamic modeling is a valuable assessment tool that can help improve the design of the compressor anti...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 24–27, 2011
Paper Number: PSIG-1117
... psig 1117 modeling upstream oil & gas pipeline transient behavior engineering prediction piping design © Copyright 2011, Pipeline Simulation Interest Group This paper was prepared for presentation at the PSIG Annual Meeting held in Napa Valley, California, 24 May 27 May 2011. This paper...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 11–14, 2010
Paper Number: PSIG-1005
.... In addressing the types of hydrodynamic occurrences as have been described above, one must be able to model the time- dependency of the flow patterns. This must include the prediction of the cyclic nature of the flow including flow variance and associated pressure transient behavior. Chemical...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 12–15, 2009
Paper Number: PSIG-09B1
..., U.S.A., fax 01-713-586-5955. ABSTRACT When wet gas is transported in a pipeline, liquid (condensate and water) will drop out due to temperature and pressure changes along the pipeline. The prediction of liquid holdup inside a pipeline is very important, as it will affect the prediction of pipeline...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 12–15, 2009
Paper Number: PSIG-09B2
... composition and low quality of the natural gas supply. Predictions of possible locations where liquid drop-out occurs are, on occasion, very difficult to obtain. Moreover, estimating the amount of liquid condensation in the gas pipeline is even more challenging. From an operating gas company prospective, it...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 20–22, 2004
Paper Number: PSIG-0403
..., , , , 0l l ln Fr We g g g Mf N N M µ µ = (1) Empirical methods usually involve the prediction of mixture density m and a representative friction factor, fm. The mixture density may be defined in terms of the in-situ volume fraction of liquid l as follows: ( )1m l l g l = + (2...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 15–17, 2003
Paper Number: PSIG-03B2
... contain conspicuous acknowledgment of where and by whom the paper was presented. Write Librarian, Pipeline Simulation Interest Group, P.O. Box 22625, Houston, TX 77227, U.S.A., fax 01-713-586-5955. ABSTRACT Predicting flow temperature and pressure changes has become increasingly important for use in both...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 23–25, 2002
Paper Number: PSIG-0209
... and temperature decrease along the lines. Figure 2-1 Predicted Phase Diagrams of the Well Fluid and Wet Gas The main challenge for operation of the transport lines from Huldra is to keep control of the liquid accumulation in the wet gas pipeline, and to control the liquid transport into the Heimdal...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 23–25, 2002
Paper Number: PSIG-02W2
...The Making of a Useful Pipeline Simulation Model Doug Fauer, P.E., Southern Natural Gas Abstract Pipeline simulation tools include steady state, transient and on-line computer programs. The determining factor on how useful a simulation tool is is its ability to predict a line s capacity under a...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 23–25, 2002
Paper Number: PSIG-02W3
... correlation phase flow homogeneous flow prediction fluid modeling flow rate friction factor holdup flow metering equation of state pipeline interfacial friction factor production monitoring liquid load liquid holdup pressure drop stratified flow interface upstream oil & gas...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 28–30, 1998
Paper Number: PSIG-9804
... prediction for the NTS On-line simulation of the NTS started working in October 1997 after a long and chequered history. The 1996 PSIG paper by Graham, Wukovits and Yurchevich entitled On-line Modeling A Diamond in the Rough [reference 21 strongly parallels Transco s experiences in this area.That paper...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 23–25, 1996
Paper Number: PSIG-9609
... commingled gas and produced liquids is a matter for negotiated contract agreements, which are routinely applied based on the volumes and compositions of delivered products. However, the management of gas flow to maximise deliveries and profits, and minimise contract violations, requires predictive simulation...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 18–20, 1995
Paper Number: PSIG-9504
... and inclined long-distance gas pipeline design calculations are carried out to test the efficacy of this new flow equation. Excellent agreement between the predicted results and measured field data is obtained. INTRODUCTION For steady-state natural gas flow through pipelines, there are several...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 22–23, 1992
Paper Number: PSIG-9209
... centrifugal pumps would be a complicated task primarily because of complex pump geometries. A two-dimensional multiphase pump model would require the knowledge of phasic holdup and velocity profiles in a pump and this data is not at all easy to measure. The results show very encouraging performance prediction...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 19–20, 1989
Paper Number: PSIG-8904
... a concern in wellbore flow where large pressure and temperature deviations in a raw gas stream make vapor-liquid flows almost inevitable. The large impact of phase behavior on flow perfor- mance makes thermodynamic property prediction much more important and involved than in single phase flows...

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