Applicability of Dynamic Behaviour Studies on Ocensa’s Offshore Pipeline
Applicability of a simplified pipe-soil interaction model on determining pipeline’s dynamic behaviour, once seabed support is lost due to seabed liquefaction, is evaluated over Oleoducto Central-Ocensa (central oil pipeline). Located in Colombia, South-America, this transportation line has 12.5km of subsea pipeline in the Gulf of Morrosquillo-Caribbean Sea. Crude oil from eastern plains of Colombia, is transported throughout this 42” pipeline, which is stored at the maritime terminal of Coveñas, before being loaded to tankers for exportation.
Pipeline’s loss of support length is function of metocean features such as wave height, length, period, seabed depth, among others. Once the simplified pipe-soil interaction model is applied, calculation of pipeline’s dynamic behaviour in terms of wall stress, for typical Gulf of Morrosquillo’s metocean environment may be possible; as of this, critical conditions for pipeline’s operation are identified, and seabed geotechnical maintenance plans are defined, based on rational methods, in order to minimise harm potential over pipeline’s integrity due to seabed loss of support.
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Pipeline Technology Journal 4/2018
The issue 04/2018 of the ptj focuses on the topic of Offshore Pipelines.
Pipelines are not found exclusively on land. A vast amount of oil, gas and other products is transported through pipelines on the bottom of the seas. These Offshore Pipelines must endure different conditions and require special inspection tools and operating methods to provide a constant flow of the products that keep our industry running.
On it's 68 pages this issue features articles and news from 6 different companies presenting solutions, ideas and products for Offshore Pipelines.