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Fluid Flow Consultants, Inc.

59580 E 317 Ln
Grove, OK 74344
Phone: 918-787-2323
FAX: 918-791-9910
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 ...

• Leaks
• "Out of Spec" Pressure Overages
• Loss of product
• Fines levied by various regulatory agencies
• Cleanup and Repair
• Litigation

The cost of doing a proper Surge Analysis is a "drop in the bucket" compared to the costs after such an accident, even if there are no serious or fatal injuries.

Experience Counts

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

• Alyeska
• BP
• Buckeye Pipeline
• Chevron
• Commonwealth Engineering
• ConocoPhillips
• Englobal
• Equilon (formerly Shell)
• ExxonMobil
• Koch
• Marathon
• Mustang Engineering
• Portland Pipeline
• Proplant Inc.
• Worley Parsons

Free Estimate

Contact us, give us a simple sketch, the basic data (line sizes, lengths, elevations, pump operating and shutoff heads, fluids' specific gravity and viscosities and operating supply and delivery pressures and flows) 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 7 as well as in Vista, XP and 2000.
• 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 & Sinks.
• Graph Heads versus Distance and Pressures & Flows versus Time
• Equipment: Pumps, Valves, Check Valves, Pressure Relief Valves, Fittings, Leaks, etc
• MainLine Tool
  1. Elevation, MAOP and Drag Reduction Profiles use "Running Distances"
  2. Allows non-zero Starting Distances
  3. Automatically selects "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 small and LARGE (up to 250 pipes), 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 operating pressures after a slight change in the flowing liquid's composition.
  3. Viscosity: Solves for the required viscosity to match operating or design pressures, regardless of ground or ambient temperature (even for multiple batches, each with a different viscosity, if you want).

  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 Family: The GENNET family is comprised of  GENNET-M and SIMPL2, both of which are Steady-State ONLY.  GENNET-M handles petroleum-based Multiphase mixtures in pipelines and NETWORKS of pipes (multiple sources, sinks and loops).  SIMPL2 is essentially the same as GENNET-M except that SIMPL2 handles only linear structures (1 source, 1 sink, no loops).  SIMPL2 and GENNET-M have the following features:

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

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, FAX 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 SIMPL2 and GENNET-M users.

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This page last updated: July 20, 2011

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