Concept and Feasibility Studies

Concept Definition provides the link between field development planning and FEED. A single, well defined option is selected to complete the conceptual phase. 

Concept Definition, or pre-FEED, adds a further level of detail to the option selected at the conclusion of Concept Select to achieve more precise definition, a better cost estimate and, ultimately, a scope of work for FEED. 

The scale of a Concept Definition or pre-FEED phase can vary dramatically depending on the nature of the project.  Regardless of scale, the activities in Concept Definition are chosen to address the development's circumstances and can include: 

• Process scheme optimisation  

• Reduction in optionality using targeted studies of particular aspects of design e.g. technology selection  

• Finalisation of field architecture 

• Preliminary P&ID development 

• Layout development 

• Issue of enquiries for long lead or high cost items  

• Cost estimating and economic assessment 

• Project schedule enhancement 

• Preparation of survey scopes of work, tendering and management of the work 

• Engagement with other work groups and third parties to reduce uncertainties e.g. drilling, reservoir engineering, tie-ins to other facilities, regulatory authorities, buyers of products. 

• Development of risk mitigation plans 

• Project execution plan and contracting strategy finalisation 

• Basis of design update 

• Commencement of the ESIA process 

• FEED Scope of Work