Engineering and Construction TABLE 1. A tale of two spools: Cascade vs. priorities Fabricator cascade allocation Spool 1 Required: May Spool 2 Required: July 2-mos fabrication cycle 2-mos fabrication cycle Month Item Pipe Jan Elbow Tee Pipe Feb Elbow Tee Pipe Mar Elbow Tee Pipe Apr Elbow Tee Pipe May Elbow Tee Pipe Jun Elbow Tee Pipe Jul Elbow Tee Delivery Eff ect 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Early spools count: 1 (3 mos) On time spools count: 0 Late spools count: 1 (2 mos) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Early spools count: 0 On time spools count: 2 Late spools count: 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 1 1 2 1 1 1 1 1 1 1 1 1 May Mar Feb May Mar May EPC priorities allocation Spool 1 Required: May 2-mos fabrication cycle Spool 2 Required: July 2-mos fabrication cycle Monthly inventory/ order status 1 May Delivery Curve spools had not gone into fabrication because the materials management system indicated that the large-diameter flanges had not been requisitioned. It turned out that these flanges had been requisitioned, but this was before the materials manager joined the project. The flanges were requisitioned by the mechanical discipline-not by the piping discipline-and not in accordance with piping discipline protocols, so they were invisible to the system. Therefore, the spools had not yet been fabricated. The project team quickly retrieved the flanges-which 66 OCTOBER 2021 | HydrocarbonProcessing.com had been sitting at the vessel fabricator facility for more than a year-and sent them to the spool fabricator, who quickly fabricated the spools. However, due to logistical issues, the spools arrived on site 2 mos late. The net effect was that the construction team had to leave the area where the 400-t crane was needed to move the crane back to the place where these largediameter spools had to be positioned. This caused a reshuffle of the entire construction schedule and delayed operations by a full day. No one quantified the cost of this delay, but it does not Spool takeoff Issued Delivered In fabrication In fabrication Not resolved Not resolved Not resolved Not resolved Spool status Spool takeoff Issued Delivered Delivered Delivered Delivered In fabrication In fabrication Not resolved Spool status Spool takeoff Allocated Issued Delivered Delivered Delivered In fabrication In fabrication Not resolved Not resolved Spool status Spool takeoff Allocated Issued Delivered In fabrication In fabrication Not resolved Not resolved Not resolved Not resolved Spool status Received On order Order ETAhttp://www.HydrocarbonProcessing.com