... Abstract Statistical and machine learning approaches to pipeline leak detection can benefit from augmentation with simple physical models that can predict line pack, particularly in cases where the fluids involved change density strongly with temperature and pressure. Determining the system...

... acknowledgment of where and by whom the paper was presented. Write Librarian, Pipeline Simulation Interest Group, 945 McKinney, Suite #106, Houston, TX 77002, USA [email protected]. ABSTRACT This paper presents specialized simulation techniques addressing some of the unique challenges related to modeling of heavy...

... volumes, piping distances, ASV selection, hydraulic resistances, control systems, and compressor inertial coast down data that will increase the accuracy of hydraulic flow modeling and assist in determining if a hot gas bypass valve is required. This paper presents a general approach for conducting...

... in dynamic pressure fluctuations throughout piping during AIV events can be made by changes in valve geometry and piping configurations. Results of CFD modeling and analysis demonstrate that computational analysis can be used to evaluate mitigation strategies and suggest that the use of a dampener...

... of such a situation, users can model these events and prepare the grid for emergencies, for example by a small house gas storage. Pipeline simulators traditionally do not model such high speed dynamic cases. We have some real measured flow, pressure and temperature data with a sampling frequency of 20 Hz. We compared...

.... These events often result in high impact forces and vibrations that sometimes cause failures. This paper presents a general approach for modeling critical transient events in liquid and multiphase piping systems. In addition, case studies will be presented to identify the critical areas of the modeling, show...

... model, and validate the results using a commercial pipeline simulator. Finally, we validate the modeling by cross-verifying simulations with SCADA data measured on a real pipeline system. INTRODUCTION The growing reliance of the bulk electric power system on gas- fired generation has made organized...

... and entrapment is another unique issue that needs to be addressed in water pipeline systems. This paper summarizes the transient modeling strategy and identifies common causes and solutions to surge or low pressure issues in the system. This paper also illustrates the consideration and modeling technique...

... Abstract One of the necessities of a simulation software is to model the behavior of compressor stations. The main device modeled in a compressor station is a compressor. The article presented concerns mathematical description of centrifugal and axial compressors, the most frequently used...

... pipeline system piping simulation michael matlock onshore multiphase system simulation interest group archer piping design reservoir surveillance psig 1409 upstream oil & gas modeling Copyright 2014, Pipeline Simulation Interest Group This paper was prepared for presentation at the PSIG...

.... This paper presents the methodology used in the assessments as well as the results obtained for the steady state and transient cases. In addition, a comparison between the conditions used for the real test and the simulation is presented. degradation upstream oil & gas modeling psig 1425...

... algorithms. Specialties of used models (e.g., multilayer network computation, automatic selection of compressor configuration) are emphasized. These specialties and (massive) parallel calculations make the optimization sufficiently precise and quick for daily use. configuration bratislava slovak...

... ABSTRACT: The ability to accurately simulate the dynamic phenomenon of slugging, whether hydrodynamic, severe, or terrain-induced, has become a key objective in modeling dynamic multiphase flows in pipelines. Current widely accepted simulation tools can yield errors as high as 100...

... ABSTRACT: Static models have been used in the last two decades to analyze the hydraulic behavior of gas gathering systems. The driving forces for building these models include the need to increase system awareness and enhance production. Building these systems in any production software...

... these elements result in flow pattern complexity when it comes to multiphase flow systems. prediction modeling psig 1005 liquid holdup hydrate formation dynamic multiphase simulation simulation interest group ellul pipeline simulation interest group two-phase flow configuration upstream oil...

... was requested to determine if water hammer was a factor in the composite pipeline failures and to perform a transient analysis of the new, existing, 8-inch steel pipeline for potential problems. A case study of the modeling and simulation effort related transient analysis of the liquids gathering system...

... PSIG 0901 Important Aspects of Gas Temperature Modeling in Long Subsea Pipelines Joakim Ramsen, Polytec, Norway (1) Svein-Erik Losnegård, Polytec, Norway (1) Leif Idar Langelandsvik, Gassco, Norway (2) Are J. Simonsen, Dynavec AS, Norway (3) Willy Postvoll, Gassco, Norway (4) Copyright 2009...

... in order to provide the service. HYDRAULIC MODELING Existing Services Hydraulic modeling of the Mainline System for capability determination for both design and operation is primarily done using a steady-state simulator. However, the markets served do not operate in a steady-state manner so the tariff...

... and transient conditions. The requirement to model these systems is, therefore, critical for adequate field development planning. This paper will present a tutorial focusing on the complex analysis of multiphase flow in pipelines with an emphasis on the tools currently available for modeling purposes. The tools...

... 1 Less is More Accuracy versus Precision in Modeling By: Susan Bachman, Coral Pipeline and Mary Goodreau, Stoner Associates, Inc. As computers have increased in speed and capacity, pipeline modeling software has kept pace. Modelers can simulate larger networks, and work on local personal computers...