Phase 02

Definition & FEED

Develop the selected concept to a decision ready definition with a controlled technical, safety and execution basis.

Objective

What this phase must achieve.

Reduce technical and delivery uncertainty to the level required for investment approval, procurement strategy and the next design stage. The result should define what is to be built, why it is needed, how it is expected to perform and how delivery will be controlled.

Questions to resolve

What the client needs to know

Are the design basis, battery limits, interfaces and performance requirements clear?
Have the principal process, safety, constructability and operability risks been addressed?
Is the definition mature enough to support investment, contracting and procurement decisions?
What must be completed, verified or carried forward into detailed design?

Typical work

How the evidence is developed

Design basis, owner requirements and scope definition
Process design, equipment definition, layouts and engineering philosophies
System architecture, single line diagrams, control philosophy and key specifications
HAZID, HAZOP and other risk studies at the maturity appropriate to the project
LOPA and SIL determination when scenarios, safeguards and functional requirements are sufficiently defined
Execution planning, estimate development, schedule development and procurement strategy

Outputs

What should exist at the end.

The exact deliverables depend on the sector, asset, appointment and decision being supported. The output should always be proportionate, controlled and usable by the people responsible for the next decision.

01Approved design basis and project requirements
02Process flow diagrams, developed P and IDs and principal system information
03Layouts, equipment data, philosophies and outline specifications
04Hazard study records, action closeout plan and safety requirements
05Execution plan, contracting strategy, cost and programme basis
06FEED package, decision pack and detailed design scope

Decision gate

The decision this phase supports.

Confirm that the project is sufficiently defined for sanction and detailed design. Approval should record the residual risks, assumptions, open actions and hold points that remain under control.

How JCMCE can help

Engineering aligned to the decision.

JCMCE can deliver or supplement the FEED team, coordinate multidisciplinary definition, review a contractor package or provide independent technical assurance for the client. LOPA and SIL work is placed where the design and hazard scenarios are mature enough to support a valid determination, then maintained as the design develops.

Start a phase specific enquiry

Relevant capabilities

Process Engineering EC&I & Functional Safety Process Safety Mechanical Engineering Civil & Structural