Fluid Flow Consultants, Inc.

59580 E 317 Ln
Grove, OK 74344
Phone: 918-787-2323

Email: sales@fluidflowinc.com

Surge Analysis Consultancy

Let Fluid Flow Consultants do a Surge Analysis of your gasoline, diesel, crude oil or other liquid products pipeline systems to:

• Avoid Pressure Overages (i.e., insure maximum surge pressures are less than 110% of MOP as per 49 CFR 195.406 (b) or ASME B-31.4
• Size Surge Relief Valves (SRVs), Relief Lines and Surge Tanks
• Investigate other mitigation measures, like pump trip set-points, lowering flow rates or Programmable Logic Control (PLC)
• Explore varios flow rate and pump configuration scenarios
• ...

The cost of doing a proper Surge Analysis is a "drop in the bucket" compared to the costs of correcting an incident.

Experience Counts

Fluid Flow Consultants has performed Surge Analyses of some sixty pipeline systems. Our clients include:

• AECOM Technical Services
• Alyeska Pipeline
• Buckeye Pipeline
• Chevron
• ConocoPhillips
• Energy Transfer
• ExxonMobil
• Integrity Solutions
• Michael Baker International
• Portland Pipeline
• Project Consulting Services
• SPEC Consulting
• Technip
• Wolverine Pipeline

Free Estimate

Contact us, give us a simple sketch of the pipeline system (even a hand-drawn one will do), the basic data (line sizes, lengths, rough elevation profile (just at the source, at the delivery and a few of the highest and lowest points in between), the fluids' specific or API gravity and viscosity, maximum (or estimated) flow rate and corresponding (or estimated) source and delivery pressure) and we can give you an estimate of time and cost to do a surge analysis.

ABOUT our Software

If you have one of our older (more than a year old) programs, you should upgrade as we have made many improvements, added new features and fixed bugs. 

We have SINGLE-PC and NETWORK (LAN/WAN) versions.

NATASHA Family: The NATASHA family is comprised of NATASHA and NATASHA PLUS.  The NATASHA and NATASHA PLUS programs handle liquid pipelines AND NETWORKS of pipes with multiple sources, sinks and loops in both STEADY-STATE and TRANSIENT (Surge Analysis) modes.  NATASHA and NATASHA PLUS also have the following features (except as noted):

• May be installed and run in Windows 10, 7 or XP.
• Dynamic Animation Playback (DAP): This option allows you to see the results (hydraulic gradeline, elevation profile, MAOP's) after the Transient Run. You can speed up, slow down, or 'freeze' the Playback and even run it backwards or play it over and over again in a loop. This DAP feature is very useful as it lets you see if Pumps, Valves, PRV's, etc are working properly and if there are any problem areas (e.g., where pressures exceed the MAOP's).
• Known Pressure / Flow (Calculate Flow / Pressure) option at the Sources and Deliveries (Sinks).
• Graph Heads versus Distance and Pressures & Flows versus Time
• Equipment: Pumps, Valves, Check Valves, Pressure Relief Valves, Fittings, Leaks, etc
• MainLine Tool
  1. Makes it easier to enter Elevation, MAOP and Drag Reduction data
  2. Allows non-zero Starting Distances
  3. Makes it easier to select "Pipes to be Charted" for Dynamic Animation Playback and Heads versus Distance graphs
• AutoSolve ONLY NATASHA PLUS HAS THIS OPTION. You specify so-called Calibration Pressures at any nodes in your model. AutoSolve solves for the selected parameter at Steady-State conditions in the pipe(s) between the specified Calibration Pressures. AutoSolve offers 3 options as parameters to be solved for. All 3 options work with PIPELINE and pipeline NETWORK models. The AutoSolve modes are:
  
  1. Pipe Diameter (LINE SIZING): Even for a large number of pipes or, for an entire Network Model if you want in a single run.
  2. Pipe Roughness: Usually used to force an existing model to match known operating or design pressures.
  3. Viscosity: Can also be used to force an existing model to match known operating or design pressures. This Viscosity option works regardless of ground or ambient temperature and even for batched systems.

  The Pipe Roughness and Viscosity calibrations minimize uncertainties in the raw input data and thereby GUARANTEE your analysis to be more ACCURATE than it would be without the calibrations.

GENNET: GENNET performs Steady-State pressure and temperature calculations for petroleum-based Multiphase mixtures in PIPELINES (single source, single sink, no loops) and NETWORKS of pipes (multiple sources, sinks and loops).  GENNET-M has the following features:

• Known Pressure / Flow (Calculate Flow / Pressure) option at the Sources and Deliveries (Sinks).
• Graph Pressure & Temperature versus Distance
• Delta P/T versus Flow (DPDT) device for Pumps, Compressors, Heaters, Coolers, Valves, Fittings, etc
• Pressure Calibration
• Liquid Removal ("Pigging")

Questions & Comments

We are 'quick as a cat' in responding to our users' needs. If you have any questions, comments or suggestions, please contact us by phone or E-mail (see contact information at the top of this page). It would help us if you would give us information on the types of problems you need to model.  Also, please send us the input file, that is, the *.NIN file for NATASHA and NATASHA PLUS users, or the *.GIN file for GENNET-M users.

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2/15/2022

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