Max Op Head, Elevation, Hydraulic Head profile, Temperature, and Vapor Pressure profile

Pressures on this profile are expressed as an elevation equivalent indicated by the profile Y-axis. This will usually be in feet (English measurement) or meters (metric measurement). The following plots are on this profile:

• Elevation

  Configured elevation.

• Maximum Operating Head

  The Adjusted Maximum Operating Pressure (MOP) converted to an elevation equivalent. Sum of the configured maximum allowed casing pressure, converted to an elevation equivalent, and Elevation.

• Hydraulic Head

  Adjusted pressure, converted to an elevation equivalent. Sum of the Gauged Pressure, converted to an elevation equivalent, and Elevation.

• Temperature

  Predicted temperature of the fluid in the pipe.

• Vapor Pressure

  The head pressure that the product vaporizes at, that is, if the head pressure is below the vapor pressure, the product in the pipeline may be a vapor.