... Abstract Fast turnaround on individual gas and liquid simulations can be crucial for critical operational or planning decisions, however complex transient simulations for large systems can be slow. Surge analysis studies can be slow too, due to the necessarily small time steps and knot spacing...

... to simulate other parts in an effective manner. Real-world pipeline operations encompass many “moving parts” that are often ignored or highly simplified in an OTS, but the inclusion of these parts can vastly improve the training experience. The integration of these many parts poses unique challenges...

... end; in those regions, a loss of containment will result in water ingress into the pipeline instead of gas egress. We discuss the detection of water ingress in such pipelines. We present the results of multiphase simulation of ingress at several locations and sizes in two flow regimes. Time scale...

... Abstract There are occasions when one might want to use results from one simulator as input to another simulator, for example, when preparing data for a leak sensitivity study where data from an offline simulator is used to synthesize measurement data for a real time model. Alternatively, one...

... appropriate recommendations. psig 1913 modeling & simulation custodian pipeline piping simulation real time system srinivasa rao pedapati psig 1913 scenario simulator coordination centre engineering piping design operator significance interface control room operation pipesim prasad...

... fall below critical even for a short time, and that can cause problems in the whole grid. In order to mitigate a risk 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...

..., flow meters and temperature measurements are only located at the inlet and at the outlet. The state of the gas between those two points can only be predicted by computer models and simulators, which are very important in order to obtain optimal operation of the pipelines. One of the parameters...

... systems are discussed. A simulated case, where DRTO was used to reduce pipeline total compression energy on-line and in real-time, is presented. Further, the pipeline complexity allowed by DRTO is discussed and DRTO is also evaluated against features typically required by Transient Optimization...

... centres during the last years a training-simulator for operating gas systems has been developed. With this simulator it is possible to map a gas system efficiently enough, to bridge this gap. Special focus is given to a realistic illustration of the individual pressure regulator stations, so...

... ABSTRACT: A new set of measurements of pressure drops and liquid hold-up taken at TEASistemi Laboratory under conditions of stratified gas-liquid flow has been used to improve the closure relations adopted in MAST, a new transient one-dimensional multiphase flow simulator. These data...

... Abstract: This paper describes a computational toolset designed to quantify and simulate potential spill volumes along a pipeline under a set of plausible operational and design strategies aimed at minimizing spill volume and impact time. The user specifies critical leak detection and spill...

..., construction began in 2007. Medgaz has relied on the use of modeling systems from the early design phases of the project where steady state and transient simulators were used to aid in the design and in the verification of the expected hydraulic performance of the pipeline. This paper discusses the key aspects...

... 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 In parallel with the design and construction of the Keystone pipeline, TransCanada and Telvent developed a fully integrated simulation environment including a dynamic hydraulic model, production SCADA system, simulated programmable logic controllers (PLCs), online leak detection...

... to the development and testing of a simulator for modeling slack line flow for use in an on-line leak detection system. While the concept of problem domain reduction is not new, it is a powerful strategic tool in the development of reasonably complex simulators and/or systems. The strategy allows you to focus...

... set points for a particular station. This illustrates once more that the route planner is intended to work intimately together with a simulator, rather then replacing it. In this paper we will briefly re-introduce the concept, present the key findings of the replay tests. We will also introduce...

... psia simulator linepack midstream oil & gas pipeline psig 0903 carter piping design mmscfd piping simulation node milepost artificial intelligence scenario forward simulation transient optimization compressors engines and turbines dupont psig 0903 delivery PSIG 0903 Using...

... addresses the DOT requirements for surge analysis on pipelines: the regulatory requirements, the significance of surges in pipelines, the physics of surges, and problems associated with surge simulation. REGULATORY REQUIREMENTS The regulatory requirement is, as Napoleon said constitutions should...

... simulators. Interesting numerical artefacts have been discovered that have caused us to revise our thoughts about the metrics we typically apply to describe accuracy. This paper discusses some of the complexities around the seemingly simple concept of accuracy whilst describing some of the different sources...

... ABSTRACT This paper was prepared in response to a request by a respondent to the attendee questionnaire at the PSIG 2005 Annual Meeting in San Antonio, Texas. The request correctly implied that authors always talk about the great things provided by pipeline simulation, but never discuss...