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Keywords: roughness
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Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 10–13, 2022
Paper Number: PSIG-2205
... compressors engines and turbines data quality midstream oil & gas transfer function artificial intelligence mass flow roughness simulation model roman zamotorin cody allen gas compressor friction factor example 2 example 1 modeling & simulation fluctuation compressor...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 3–7, 2021
Paper Number: PSIG-2118
... are compared with the present method. The main contribution of the paper is the extension of the stat-space formulation to remove uncertainty in pipe-roughness assumptions through systematic estimation of friction factors. Introduction Natural Gas Pipelines are an efficient method to transport energy over...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 14–17, 2019
Paper Number: PSIG-1901
.... investigation dra concentration dra type production control piping design degradation simulation tool psig 1901 flowrate dra reservoir surveillance agent flow rate reduction polymer case 2 roughness concentration production logging upstream oil & gas pipeline piping simulation dra...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 14–17, 2019
Paper Number: PSIG-1926
... ABSTRACT An important variable considered in the sizing and design of pipelines is the absolute roughness of the pipe, which is used to calculate the pressure loss during fluid flow through the pipeline. The default value for absolute roughness of commercial steel pipe, as generally used...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 14–17, 2019
Paper Number: PSIG-1930
... ABSTRACT Pipeline data analysis utilizing machine learning method is present in this paper. Three machine learning models using Artificial Neuro Network methods are constructed to use nominal flow rate and head loss as input and pipeline roughness change, internal diameter change, a potential...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 15–18, 2018
Paper Number: PSIG-1812
... evaluation platform 2 operational experience platform 1 pig design roughness pipeline system pipeline 2 pressure drop upstream oil & gas viscosity simulation deposition wye thickness svein bjarte joramo-hustvedt psig 1812 © Copyright 2018, PSIG, Inc. This paper was prepared...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 9–12, 2017
Paper Number: PSIG-1712
...), roughness changes, BSW deposition or other issues influencing pressure drops in the pipeline. INTRODUCTION AND BACKGROUND Performance test is an important part of the commissioning procedure of natural gas transmission pipelines after their construction. The EPC contractors are responsible of ensuring...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 9–12, 2017
Paper Number: PSIG-1713
... are spent constructing pipelines based on these estimates with detailed studies. However, one important pipeline parameter is generally kept at a default value when designing Greenfield and expansion pipeline projects - pipeline roughness. Absolute pipeline roughness of 0.0018 inch (0.04572 mm) is often...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 10–13, 2016
Paper Number: PSIG-1628
... benefit the planning of cleaning activities. Theoretically the pipe wall roughness for a given pipe segment can be extracted based on measured flow data and other system parameters. The challenge lies in the fact that measured data all contain varying degrees of uncertainty, and the system becomes more...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 6–9, 2014
Paper Number: PSIG-1424
... viscosity variation scada data roughness effective viscosity psig 1424 canada flowrate simulation production logging drilling fluids and materials production monitoring reservoir surveillance hydraulic model Copyright 2014, Pipeline Simulation Interest Group This paper was prepared...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, April 16–19, 2013
Paper Number: PSIG-1322
... to estimate the new state as if the model errors in each time step were completely uncorrelated, creating a necessity for external automatic tuning mechanisms if there are slowly-time-varying or unvarying sources of error such as unknown pipe roughness or unknown ground thermal properties. In other fields...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 15–18, 2012
Paper Number: PSIG-1212
... production logging production control artificial intelligence delivery roughness procedure inventory conductivity gas batch offshore pipeline psig 1212 production monitoring upstream oil & gas reservoir surveillance constraint calculation accuracy pipeline model deviation pipeline...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 24–27, 2011
Paper Number: PSIG-1118
... ABSTRACT: Internal pipe coating technology is available for natural gas pipelines, and can be primarily used to reduce surface roughness, and thus internal friction. This will reduce the pressure drop between compressor stations, and thus allows installing less power and consume less fuel...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 11–14, 2010
Paper Number: PSIG-1008a
... that the real gas can be compressed more that its ideal counterpart. smooth pipe law panhandle schroeder flow rate equation equivalent friction factor flow metering tutorial production monitoring pipe fundamental flow equation reynolds page 8 upstream oil & gas roughness diameter...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 11–14, 2010
Paper Number: PSIG-1008
... paper in the wake of 9/11 but not published with the proceedings since it was too late, ended with the thought that pipeline efficiency was a valuable tool in calibrating gas models, more so than that of pipe roughness. Since then, I have received much verbal support from people within the industry...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 12–15, 2009
Paper Number: PSIG-09A1
... physical property transfer coefficient roughness coefficient tutorial energy transfer variation equation data mining reservoir surveillance diameter production monitoring pipeline modeling piping simulation flow rate friction factor node ABSTRACT Data Gathering Exercises Data used...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 23–26, 2007
Paper Number: PSIG-0711
... & gas inaccuracy friction factor artificial intelligence application jon barley psig 0711 roughness simulator psig 0711 base case relative difference numerical method complexity variation accuracy lagoni friction factor correlation correlation fluid modeling equation of state...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, November 7–9, 2005
Paper Number: PSIG-0505
... test, where the wall roughness is used to tune the model to match the flow conditions from the steady state test period. Based on this roughness the friction factor is extrapolated along the appropriate Colebrook-White friction factor curve to find the hydraulic capacity. This method is based...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 20–22, 2004
Paper Number: PSIG-0406
... - the user could just look up what would happen in the list.) scenario batch midstream oil & gas roughness pipeline model reservoir surveillance production logging equation production monitoring algorithm ground conductivity flow rate offline model magnitude production control rate...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 23–25, 2002
Paper Number: PSIG-0202
... 1.19. GERG (Groupe Europeen de Recherches Gazieres), founded in 1961, consists of members from eight European countries. INTRODUCTION "Taking the Rough with the Smooth" gives a good hint at what this paper is all about. For many years the gas industry has relied on the Colebrook-White equation...

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