Chapter 4: Getting Started Accessing and Managing Pipe Inventory When the Tubular > Pipe Inventory spreadsheet is accessed for the first time, it displays an inventory of casing for the OD corresponding to the OD designation in the Wellbore > Casing and Tubing Scheme spreadsheet for the string that is currently selected. The pipe inventory for a different OD can be selected using the Select OD pull-down list on the Template toolbar. The entire pipe inventory for all sizes can be displayed by selecting All at the top of this list box. Select the OD that you want to view data for using this selection list. The pipe inventory is automatically sorted on the basis of the three keys specified in the Sorting dialog box. The default key settings are OD (primary), weight (secondary), and grade (tertiary) which are accessed from View > Sorting dialog box. The Pipe Inventory Catalog (accessed by using the Edit > Import from Catalog and Edit > Export to Catalog commands when the current view is the Pipe Inventory spreadsheet) contains a built-in API catalog StressCheckTM Software Release 5000.1.13 Training Manual 4-29 Chapter 4: Getting Started that contains all API casing, as listed in Table 1 of API Bulletin 5C2, as well as API line-pipe in the range of 22-42 inches OD. Default performance properties for API line pipe are calculated on the basis of API Bulletin 5C3 formulations for internal yield pressure (burst), pipe body yield strength (axial), and collapse pressure. For collapse pressure ratings determined by this method, be aware that the API Bulletin 5C3 collapse pressure formulations are, in large part, empirically derived from testing on materials of greater minimum yield strength and tubes of lesser D/t (diameter-to-wall thickness) ratio than are typical of API casing. API does not recommend using the 5C3 collapse formulations for line pipe, but it does state in § 2.4 of 5C3 that “For line pipe having a yield strength and D/t falling within the limits of the sizes and thickness listed in API Specification 5CT, application of the formulas in 2.2 (the API collapse formulas) should yield reasonable estimates of minimum collapse pressure.” Sound engineering judgment is recommended when using these line pipe ratings. Each valid entry (or row) in the Tubular > Pipe Inventory spreadsheet defines a pipe that is available for manual, graphical, or minimum-cost design. To be considered a valid entry, every cell in a row, except “In Inven.”, must contain a legitimate value. By default, the initial contents 4-30 StressCheckTM Software Release 5000.1.13 Training Manual
