With your preferred concept, Expand Oil Services can move forward with FEED. Detailed design, engineering and procurement can begin. Process and Instrument Diagrams (P&IDs), Process Flow Diagrams, Process Hazard Analysis (PHA) are just a few of the documents that will be created for you during this process. The documentation created during FEED will assist during the construction phase but will also be important as you move into operations. FEED will also produce a project cost estimate that is suitable for project financing decisions.