ABSTRACT
In order to meet the requirements for high safety and production regularity for the TOGI subsea production, high reliability is required for the components building up the system. The overall safety goals put forward by the authorities and the operator has been broken down into component reliabiltiy requirements. The same process has been performed for the production regularity target value put forward to meet the deliverability requirement in the gas sales agreement.
The paper describes in brief the Engineering, Procurement and Construction (EPC) contract and its benefits and challenges wrt. reliability verification. Examples of the requirements put forward in the contract are given. Experience from lifecycle cost calculations in bid evaluation is outlined. The contractors reliability verification work is described.
The reliability verification requirements directs the contractor efforts towards a systematic approach to field experience, reliability data and component testing. The future potential for reduced investment and maintenance cost is large and use of reliability requirements/ verification should be further developed by oil companies and contractors The resulting effect is increased confidence in design and possibilities to develop even simpler and more reliable subsea production concepts in the future.
