NextGen Hydraulic Pipeline Simulation Suite

NextGen is the world’s most advanced pipeline simulation application, and incorporates steady state and transient predictive, transient online, transient look ahead, and sequential hydraulic simulation into a single application.

NextGen can be run stand-alone on a single user’s machine with connectivity to Excel for easy data imports, exports, and automation, or with its client server architecture can also be installed as an interconnected enterprise wide solution that integrates hydraulic simulation with Graphical Information Systems (GIS), SCADA systems, Nominations systems, and enterprise databases.

NextGen is actually GEI’s fourth generation simulation software and was built with the knowledge accumulated over 30 years of simulation development and input from pipeline engineers, operators, and simulation users throughout the industry.

NextGen

All-In-One Simulation Interface

All simulation sections available in a particular model in NextGen are synchronized so that any pipeline configuration change such as add­ing a lateral or a new compressor station, process plant or valve, is au­tomatically propagated to all sections (so users don’t have to update a steady state model, and then update a separate transient predictive model, online model and look ahead model).

These simulation sections however also operate independently, and if needed will make use of multiple run engines for the same pipeline model. For example, a user can launch a transient predictive run, and while it is running, switch to the steady state tab of that model, and edit data, make runs and view results in steady state, before going back to the model’s transient predictive simulation.

When a model is created or opened, NextGen supports five different types of hydraulic simulation for that model within the same interface, and users can simply switch tabs to go from one simulation type to another. The following simulation types are supported:

  • Steady State (Gas and Liquid)
  • Transient Predictive (Gas)
  • Transient Online (Gas)
  • Transient Look Ahead (Gas)
  • Sequential: Long term time based simulation typically used for forecasting, storage analysis, well decline modeling, or construction scheduling (Gas and Liquid)

Gas and Liquid Pipelines

When a user creates a model, and assuming the Liquids Module is enabled, the user can select whether the pipeline should be gas or liquid, and NextGen will automatically switch between gas and liquids mode as needed depending on the model type.

Large and complex gas models for gathering, transmission, and distribution pipeline systems can be modeled in NextGen.

Users can specify and track differing compositions of gas within the model where natural gas is the default composition, and there are many equations and algorithms specific to natural gas that are available as options within NextGen, but any compressible gas can be modeled.

Steady State, Transient Predictive, Transient Online, Transient Look Ahead, and Sequential modeling is supported for gas pipelines.

For a Liquid model, users can specify the type of pipeline being modeled and different categories of equations will be activated depending on the type (Crude Oil, Water, Processed Water, Other). Steady State and Sequential modeling is supported for liquids pipelines.

NextGen pipeline simulation suite

Pipeline Types that can be modeled in NextGen:

  • Natural Gas Pipelines (or any other gas)
    • Nodes, Meters (unlimited number of meters per node), Gas Wells as nodes/meters (ARPS, PLE), Pipes, Detailed Compressor Stations (6 Centrifugal Unit types, 4 Reciprocating Unit types), Regulators, Valves, Check Valves, Storage Fields, Process Plants, Chillers, Flow Meters, Gas Wells as Legs (Back Pressure, IPR), Ruptures/Leaks.
    • 18 Friction Factor equations, 6 Z Factor equations, 9 Equation of State Correlations
    • Temperature Tracking, Specific Gravity Tracking, Heating Value Tracking, Liquid Tracking, Gas composition Tracking (18 core components + custom components), Source Tracking, Revenue Tracking, Dew Point Pressure and Temperature Calculations
    • Supports systems sizes of 1,000,000+ nodes for Steady State and Sequential, and up to 50,000 nodes for Transient (Transient can support 250,000 nodes if Tracking accuracy is degraded).
  • Crude Oil Pipelines
    • Nodes, Meters (unlimited number of meters per node), Oil Wells as nodes/meters (ARPS, PLE), Pipes, Detailed Pump Stations (3 Unit types), Regulators, Valves, Check Valves, Storage Tanks, Process Plants, Warmers, Flow Meters, Wells as Legs, Leaks
    • Oil well modeling, production decline analysis
    • DRA Tracking, K Factor (~grade of crude oil) Tracking, Temperature Tracking, Specific Gravity Tracking, Composition Tracking (custom components), Source Tracking, Revenue Tracking
    • Built in equations for viscosity and other parameters
    • Supports systems sizes of 1,000,000+ nodes for Steady State and Sequential.
  • Water Distribution Systems
    • Complex residential network modeling
    • Nodes, Meters (unlimited number of meters per node), Water Wells as nodes/meters (ARPS, PLE), Pipes, Detailed Pump Stations (3 Unit types), Regulators, Valves, Check Valves, Storage Tanks, Process Plants, Warmers/Chillers, Flow Meters, Wells as Legs, Leaks
    • Oddly Shaped Water towers (nonlinear pressure/volume relationships)
    • Water well modeling
    • Temperature Tracking, Source Tracking, Revenue Tracking
    • Built in equations for viscosity and other parameters
    • Supports systems sizes of 1,000,000+ nodes for Steady State and Sequential.
  • Processed Water (Salt water, Brine water) Pipelines
    • Nodes, Meters (unlimited number of meters per node), Wells as nodes/meters (ARPS, PLE), Pipes, Detailed Pump Stations (3 Unit types), Regulators, Valves, Check Valves, Storage Tanks, Process Plants, Warmers, Flow Meters, Wells as Legs, Leaks
    • Brine Concentration Tracking, Temperature Tracking, Source Tracking, Revenue Tracking
    • Built in equations for specific gravity, viscosity and other parameters
    • Supports systems sizes of 1,000,000+ nodes for Steady State and Sequential.
  • Other
    • Any liquids products pipeline, NGL, …

Learn more about our Software Solutions

Call us at 281.494.8100 or email us: office@greggengineering.com.