DNV’s transparent and independent approach to verification of pipeline, riser and subsea facilities from design to operational phases, helps to reduce and manage risks, thereby ensuring successful subsea projects.
Verification provides the required assurance towards stakeholders and regulatory authorities that projects are implemented right the first time. Our independent and competent appraisals of your pipelines, riser and subsea facilities will provide the required assurance that they are designed, constructed and installed in accordance with project objectives.
We strongly believe that an open approach to the thoroughness and level of involvement in certification and verification tasks will enable the owner and/or contractor to reduce risk at an optimum cost. We recommend that verification activities are started as early as possible, i.e. during the feasibility and conceptual design phase. In the early phases, changes can be made with minimum cost and schedule impact.
DNV has identified a need for a more accurate and transparent approach to verification and certification of submarine pipelines and subsea systems. We have therefore issued the following Offshore Service Specifications:
The methodology described in the DNV OSS complements the technical requirements given in the DNV Offshore Standards, OS-F101 for Submarine Pipeline Systems, OS-F201 for Dynamic Risers and various other DNV Offshore Standards for structures, process facilities, electrical and instrumentation systems. The methodology will enable the designer/owner of the pipeline project to focus on the most critical aspects of a pipeline project, and hence reduce risk at optimum cost. Verification will normally be carried out by a combination of document review(s), simplified or advanced independent analysis, audits, inspections and quality control, and witnessing of tests. The verification’s sophistication will be commensurate with the project’s risk level.
The document contains guidance on how to select a suitable level of verification and/or certification, and detailed tables describing the verification scope for: