A Great Southern Press Site
Username:   Password: Forgot Password?
  

Protecting Arctic marine pipelines against subgouge deformation

Madeline Chua, Professor Andrew Palmer, and Hendrik Tjiawi


Gouging ice masses are a threat to underwater pipelines in the Arctic. The problem is made more severe by the fact that the soil under an ice mass is dragged forward as it gouges, so that a pipeline might not be safe even if it is trenched deep enough for the ice itself to clear it. Subgouge deformation is incompletely understood, and predictions are uncertain.

The scheme describe here makes it possible to eliminate subgouge deformation, by placing a weak layer above the pipeline and below the gouging ice mass. The layer is not strong enough to transmit downwards the shear forces that induce the deformation. The authors describe an improved version that lends itself to straightforward installation.



Optional promotion code:

Open season for Bakken crude oil gathering system
29 May 2015
India commences first phase of Jagdishpur-Haldia pipeline construction
26 May 2015
Expressions of interest sought for export of natural gas to Mexico
25 May 2015
US senator pushes for expedited pipeline permit timelines
21 May 2015
Rockaway Delivery Lateral, Northeast Connector pipeline projects complete
20 May 2015
Ageing pipelines conference
Ostend, Belgium
5 – 9 Oct 2015
Pipeline Defect Assessment
Kuala Lumpur, Malaysia
19 – 21 Oct 2015
Pipeline Risk Management and Assessment
Kuala Lumpur, Malaysia
20 – 21 Oct 2015

Want to see the latest? Follow Pipelines International on Twitter.