Typically this is accomplished with the use of pipelines which move the gas from one point to another. They provide an economical method for transporting the fluids over great distances, with low operating costs especially as the volumes increase.

However the design of the pipeline system one must take into consideration the fluid properties as it is compressed and moved along the pipeline. As such mathematical models are used to determine the bahaviour of the fluid as it travels along the pipeline. This helps to determine the pressure loss to be had by the volume of fluid and as such one can better determine the horsepower needed to move the gas via the pieline.

Several Equations have been developed to determine the pressure loss. Among them are:

  1. Darcy’s Equation
  2. Liquid Flow
  3. Hazen-Williams
  4. Gas Flow
  5. Weymouth Equation
  6. Panhandle A
  7. Panhandle B
  8. Spitzglass
  9. Cullender and Smith
  10. Pressure drop based on elevation change (API RP 14E)
  11. Pressure Loss as a result of pipe fittings.
    1. Resistance Co-efficient
    2. Flow Co-Efficient
    3. Laminar Co-Efficient

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