Pipelines and Gathering Systems

Pipelines and pipeline networks for above ground, buried, and subsea conditions may be simulated, including known or calculated heat losses to the environment.

ProMax® Pipeline Network
  • Model horizontal, vertical, and inclined pipelines
  • Predict locations of drip condensate
  • Predict liquid holdup and volumes from pigging operations
  • Optimize compressor discharge pressures to balance system nodes
  • Monitor cricondentherm, heating values, and other parameters throughout pipeline networks
  • Predict solids formation in a pipeline
ProMax® Liquid Holdup

Pipeline Details

ProMax® Pipeline Segment Block
  • The Pipeline block calculates the pressure drop, temperature change, velocity, flow regime, and other properties of a single- or multiphase stream as it flows through segments of pipe.
  • The pipeline has one Process Stream inlet, one Process Stream outlet, and an optional Energy Stream attachment.
  • The pipeline may include any number of segments, each with different specifications.
  • In addition, a segment may be a fitting, valve, or reducer between any two segments of pipe. Fitting equivalent length or Kv can be used. Default values are taken from either based upon the Crane Technical Paper No. 410 (1991) or from Table 5-19 in Perry and Chilton (1973).
  • Execution may proceed upstream through the Pipeline (i.e. Pipeline supports forward and backward calculation).
  • Multiple correlations are available for multiphase flow including: Aziz-Govier-Fogarasi, Beggs and Brill, Dukler et al, Duns and Ros, Lockhart-Martinelli, Lockhart-Martinelli Modified, Mandhane-Gregory-Aziz, and Orkiszewski
  • Material of construction can be selected from ASME, API, and CSA material grades.
  • Multiple ground types are available for buried or submerged pipe with default thermal conductivities provided, but updateable.

Line Sizing Analysis

  • The Line Sizing Analysis quickly calculates either the minimum diameter that meets the pressure drop specification or the pressure drop for a fixed pipe diameter.
  • Single or multi-phase systems may be modeled for straight or inclined pipe.
  • MAWP is calculated based on process conditions and application pressure vessel code selected.
  • Individual phase fluid velocities and erosional velocities are calculated.
  • Numerous flow correlations are available.
  • The Line Sizing Analysis assumes that the lengths are relatively short with no heat transfer occurring such that fluid properties are constant.