ITF launches JIP in Australia to tackle subsea pipeline operational challenges
ABERDEEN -- ITF, a global technology facilitator, together with subsea and pipeline engineering and project management company Subsea Engineering Associates (SEA) in Perth, Australia, has recently launched a joint industry project (JIP) that will explore and demonstrate a new approach to assessing pipeline span issues on the seabed.
Phase I of the JIP is expected to run for six months and cost in the region of $240,000, and involve four regional oil and gas operators.
Due to an uneven seabed, tidal currents or scouring, some pipelines may develop free spans. A free span on a pipeline is where the seabed sediments have been eroded or scoured away, and the pipeline is no longer supported on the seabed.
Pipeline free spans have been studied extensively over the last two decades. Though the extreme limit states of the pipeline are understood and defined in DNV guidelines, traditional analyses fall short during the pipeline’s operational phase on mobile seabeds, where free spans form, move and often disappear between pipeline surveys.
The aim of the JIP with SEA is to demonstrate that the creation of an enhanced partial safety approach with the delivery of more accurate data may negate the need for often unnecessary, costly intervention. The project will then focus on developing a methodology to demonstrate a ‘do-nothing’ approach to mobile free spans that will meet the failure probability required by DNV-OS-F101.
ITF is a not-for-profit organization owned by 32 international oil and gas operator and service companies. It is the only global collaborative R&D funding program operating across continents. The organization has facilitated the launch of more than 200 JIPs from early stage projects, through to field trials and commercialization. ITF aims to secure a further $80 million for technologies over the next three to five years.