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Keywords: roughness
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Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 16–19, 2023
Paper Number: PSIG-2315
... upstream oil & gas reservoir surveillance production logging production control tuning midstream oil & gas pipeline diameter liquid pipeline psig 2315 viscosity tutorial scada setpoint roughness manual tuning batch united states government production monitoring...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 10–13, 2022
Paper Number: PSIG-2205
... geometry, pipe roughness, geography of the route and soil conditions. In practice, interconnected gas pipelines rarely operate in steady state due to widely changing gas demand and dynamics introduced from injection and take off points along the pipeline. Recent geopolitical events involving Russia s...
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
... Number Page 5 (18) The Reynolds Number in gas industry compressible form - English Page 5 (19) The Reynolds Number in gas industry compressible form - Metric Page 5 (20) The Hagen-Poiseuille equation Page 5 (21) The rough pipe law of Nikuradse Page 5 (22) The smooth pipe law of von Karman and Prandtl...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 11–14, 2010
Paper Number: PSIG-1008
... 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 but continue to hear comments that pipe roughness should be used as the tuning parameter. This paper builds on the original paper...
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
... that is made available for sale to the owners and shippers of the gas. This capacity is found by means of a capacity 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...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 20–22, 2004
Paper Number: PSIG-0406
.... the the measured stream or the meter itself is for some reason at the ambient temperature). Offline models are a different matter. It is difficult to distinguish between a pressure sensor that has drifted significantly and a bad roughness value for the adjacent pipe, as will be seen below. For this reason...

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