Subsea project launched to discover new ways of assessment

subseaA project involving regional oil and gas operators has been launched to find new ways of assessing pipeline span issues on the seabed.
The joint industry project (JIP) is the brainchild of technology facilitator ITF and Perth-based Subsea Engineering Associates (SEA). According to ITF regional manager for Australia Peter Brazier it is designed to “go beyond traditional approaches to span assessment”.
The first phase of the project is expected to run for six months, cost about $250,000 and involve four regional oil and gas operators.
“It will investigate significant variables to define more accurately the failure probability of subsea pipelines,” Mr Brazier said.
“This will give operators greater knowledge of the behaviour of the seabed and how this impacts on pipeline surveys and integrity.”
ITF stated that pipeline free spans had been studied during the last two decades, and traditional analyses fell short during the pipeline’s operational phase on mobile seabeds where free spans form, move and disappear between
surveys.
If successful, the JIP would show that creating an enhanced partial safety approach with the delivery of more accurate data would counteract the need for unnecessary and expensive intervention. The focus would then be on developing a ‘do nothing’ approach to mobile free spans.
SEA operations manager Afton Galbraith said the project was aimed at making subsea analyses and solutions more economical.
“Accurately defining failure probability allows for more cost effective and enhanced risk analysis decision making, which we believe will be of great interest to oil and gas operators,” he said.