Jacket
Bayu Undan Jacket Launch Model Test in HT
General information
Jackets were among the very first structures to be used in the offshore industry, as stable platforms mainly for oil and gas production facilities. Jackets are being used in shallow and medium water depth regions throughout the world. They can be built to withstand even extremely harsh environments, for example in the North Sea. The platforms range from very small structures carrying only meteorological measuring equipment to extremely large production platforms.

Services & Activities
The Offshore Department has been involved in model test and simulation projects concerning several design aspects specific to jackets. Many jacket launches from barges and up-ending operations using crane vessels have been carried out in our basins. Furthermore, the feasibility of a number of top-side installations, either by float-over installation or using a crane vessel has been investigated. In recent years also the decommissioning of platforms has also become an issue that needs to be considered.

The Trials & Monitoring Department has been involved in full-scale measurements during transportation of jackets on a barge. Vessel motions and accelerations, as well as sea-fasting loads were measured and analysed.

Facilities & Tools
Jackets are tested in the following MARIN facilities:


The behaviour of jackets is simulated with the following tools : (DIFFRAC and DRIFTP for MARIN internal use only)

Software Sales
Some software tools are available for commercial use outside MARIN. A complete overview of these software tools for sale can be found under Software Sales.

Experience record
The list below gives a review of jacket model tests and simulation studies carried out at MARIN :

  • Bayu Undan jacket launch tests (Phillips 66, 2001)
  • Self Floating Platform installation tests (Smit, 1999)
  • Installation Brage Field jacket (Norsk Hydro / Aker, 1991)
Most recent papers on jackets presented by MARIN
(complete overview of papers can be found under Publications)

A Study on Simplified Loading Models for Vertical Wave-in-deck Loading
Jule Scharnke, Wim Lafeber , ISOPE 26th International Ocean and Polar Engineering Conference, Rhodes, Greece, 2016

A Study on Simplified Loading Models for Vertical Wave-in-deck Loading
Jule Scharnke, Wim Lafeber, ISOPE , 2016

MARIN spearheads advanced wave impact modelling initiatives
Janou Hennig, Joop Helder & Hannes Bogaert, MARIN Report, 2014

OBELICS JIP successfully achieves goals
Ron Schoon & Eelco Frickel, MARIN Report, 2013

Evaluating the Loading and Structural Response of an Offshore Platform Using Integrated Large and Small Scale Testing Combined With Diffraction and Finite Element Analysis and Offshore Measurements
Bas Buchner, Robert Heerink and Jaap de Wilde (MARIN), Joel Witz (Hess) and Karen la Cour Hjelholt (Ramboll), Offshore Technology Conference (OTC), 2009

Most recent FPSO articles written for MARIN Report
(complete overview of articles can be found under Publications)

A Study on Simplified Loading Models for Vertical Wave-in-deck Loading
Wave-in-deck model tests were carried out with vertical load measurements, pressure measurements and a two camera high speed video setup. With the undisturbed surface elevation at every time step, the load transfer to a flat...

A Study on Simplified Loading Models for Vertical Wave-in-deck Loading
Wave-in-deck model tests were carried out with vertical load measurements, pressure measurements and a two camera high speed video setup. With the undisturbed surface elevation at every time step, the load transfer to a flat...

MARIN spearheads advanced wave impact modelling initiatives
Due to the complexity of wave impact modelling, MARIN is starting several new research initiatives.

OBELICS JIP successfully achieves goals
OBELICS, the Joint Industry Project on Operability of Ballasting and lifting operations of Extreme Loads with Integrated hydro dynamiCS, was just rounded off after two years of intense cooperation.

Evaluating the Loading and Structural Response of an Offshore Platform Using Integrated Large and Small Scale Testing Combined With Diffraction and Finite Element Analysis and Offshore Measurements

Contact
For more information on how MARIN can help your organisation with jackets, please contact:

For model test and simulation activities: Offshore Department
For full scale measurements: Trials and Monitoring Department

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