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Keywords: concentration
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Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 16–19, 2023
Paper Number: PSIG-2312
... natural gas compressors engines and turbines social responsibility sustainable development scenario midstream oil & gas sustainability equation of state modeling & simulation concentration air emission hydrogen psig 2312 constraint cng artificial intelligence hydrogen injection...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 16–19, 2023
Paper Number: PSIG-2310
... to counteract these risks may not be economically viable and as such diluting the hydrogen concentration within a natural gas compound is one of the few viable methods for managing the risks. This paper provides two case studies to discuss the challenges and benefits of a real-time system for the simulation...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 10–13, 2022
Paper Number: PSIG-2204
... regimes. The models predict the value of critical velocities in pipes via ML using accessible parameters as inputs, namely, sand concentration, pipe inclination, pipe size, liquid density, liquid viscosity, particle density, and particle size. First, these models are trained with a set of 1640 data points...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 3–7, 2021
Paper Number: PSIG-2110
... turbines that drive the pipeline concentrations to a natural gas pipeline, a realistic pipeline compressors, and the impact of pipeline capacity and transport system is simulated. The pipeline hydraulic simulation provides efficiency. the necessary operating conditions for the gas compressors...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 3–7, 2021
Paper Number: PSIG-2109
... the motion of the particle. models in the literature. Many parameters are involved within sand transportation such MACHINE LEARNING APPROACH as pipe inclination, particle size, liquid viscosity and particle concentration. For instance, based on the results of laboratory Figure 1 shows the overall procedure...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 3–7, 2021
Paper Number: PSIG-2112
... of flow characteristics such as the water distribution around the pig are regimes from stratified to dispersed flow by varying the mixture examined. Afterward, based on the water concentration, the velocity and water-cut. Pouraria et al. [11, 12] utilized VOF phase-wetting condition would be identified...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 14–17, 2019
Paper Number: PSIG-1901
... of pipelines once injected has been understood. Factors such as location of DRA injection, DRA type vs. %Dr, and DRA concentration have been proven to be effective in optimizing the effect of DRA based on the results of the simulated cases. Savings reaching up to $4 Million on spending for one type...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 14–17, 2019
Paper Number: PSIG-1906
... that are added at very low concentrations to reduce the pressure drop necessary to generate a given flow rate in a turbulent flow. They can be used in case if building of extra loops or pumping stations is impossible or the need to increase pipeline capacity is seasonal. Scheduling pumping regimes...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 14–17, 2019
Paper Number: PSIG-1907
... then be calculated using Equation 4 assuming the segment is filled with DRA at a constant DRA concentration. Considering DRA performance in this form helps explain the magnitude of head loss reduction based on DRA performance. Equation 4 = = 1 Combining Equation 1 and Equation 4 result in a system power...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 15–18, 2018
Paper Number: PSIG-1801
... of the model are widely used for liquid pipelines, one correlates Drag Reduction (DR) as a function of DRA concentration only, and the other correlates DR as a function of DRA concentration and Reynolds number. Both are pipeline and fluid specific, that is, have limitations to pipelines similar to the tested...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 6–9, 2014
Paper Number: PSIG-1416
... and specified commanded concentrations of DRA by pipe and by batch. The benefits of this approach to pump selection are magnified if this is included as part of a larger optimization problem which manipulates both flow rates and DRA concentrations as well. Methodologies for the larger problem are beyond...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 6–9, 2014
Paper Number: PSIG-1418
... reduction efficiency. The most widely used model in pipeline industry for predicting the drag reduction efficiency correlates drag reduction as a function of DRA concentration alone. However, in reality drag reduction can be significantly different from the predicted one depending on the variations...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, April 16–19, 2013
Paper Number: PSIG-1315
... motion containing DRA is proposed. The model takes into account the gradual breakup of DRA in a pipeline flow. The influence of DRA is considered as a dependence of hydraulic resistance coefficient on the DRA concentration; the DRA concentration in turn depends on a travel distance in a pipeline...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 15–17, 2003
Paper Number: PSIG-03B3
... by pump speed only. The DRA concentration can be varied by either adjusting the pump speed or by using different concentration in the premixed solution. The latter was preferred when running at constant gas flow rate to keep the mixture gas composition unchanged. The pump speed was varied when changing...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 17–19, 2001
Paper Number: PSIG-0111
... of pumping shut-down on the mixing volume. A new model capable to evaluate mixing volumes under pump shut-down and start-up events is presented in this paper. The model is formed by a set of differential equations that describes the momentum conservation and concentration distribution for the fluids, which...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 20–22, 1999
Paper Number: PSIG-9913
... pipeline. A systematic field test program was conducted on the pipeline to verify the simulation results. Acoustic wave speed in slurry with different solids concentrations was measured. Maximum transient pressure at different locations was recorded. The test data and the simulation results are compared...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 20–22, 1999
Paper Number: PSIG-9914
... to provide the solution capabilities that accurately simulate the behavior of DRA under all operating conditions. The effectiveness of DRA is measured in terms of the percentage reduction in the frictional losses in the pipeline. This effectiveness varies with the DRA concentration, viscosity of the solvent...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 28–30, 1998
Paper Number: PSIG-9810
... midstream oil & gas modeling & simulation measurement and control concentration survival time delivery pressure compressor gas pipeline scada system application information simulation model pipeline network line pack model building scada operator valve pipeline two...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, October 15–17, 1997
Paper Number: PSIG-9708
... components for calculating the dynamics for Gas, Product and Crude oil Pipe lines. conservation operation psig concentration multiphase flow case 2 phase model line condition midstream oil & gas trans-alaska pipeline piping simulation station 6 discharge disadvantage pipeline slack...

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