On the Packer Envelope tab, the well designer can view the results of packer force calculations for all loads on the tubing string. The string temperature at the packer, the pressure above and below the packer, and the differential pressure across the packer are also visible (some are hidden by default).
On the chart, the differential pressure is plotted against the tubing-to-packer force for each load.
If the Completion features are licensed and the user has provided Packer Operating Envelope data in the Production Packer description in the casing program, then those series will be plotted here.