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Talisman Malaysia Limited

East Bunga Raya – BR-D Platform Substructure and MOAB Installation, Malaysia

ICON Engineering was engaged by Talisman Malaysia to undertake the installation engineering for the Mobile Offshore Application Barge (MOAB) structure for the Bunga Raya D Platform Substructure and Topsides Installation. 

ICON developed the installation procedures including detailed stability analysis for the tow and sinking of the substructure.

MOAB topside floated over substructure

The MOAB topsides cross floated during installation

 

ICON Engineering performed geotechnical installation analysis, selected the suction pumps for installation of the suction piles and designed the ballasting umbilical system.

BR-D concept development diagram.jpg

A diagram of the East Bunga Raya development concept

 

The platform to be installed was a Mobile Offshore Application Barge (MOAB) structure. The platform is used as a booster platform and is in 53.5m of water at the Bunga Raya field.

The facilities installation consisted of two floating components.

East Bunga Raya BR-D subsctructure during ballasting for installation.jpg

The East Bunga Raya BR-D substructure during ballasting for installation

 

The Substructure is a four legged floating jacket complete with integrated suction can foundations at the base of each leg.  The substructure was wet towed from the fabricators yard to the field.  The substructure was then ballasted down and lowered to the seabed using assistance from a derrick barge crane.  The pre-installed suction pumps were then used to complete the substructure installation.

The facilities installation consisted of two floating components.

The BR-D substructure under tow marine transport.jpg

The BR-D substructure under tow

 

The Substructure is a four legged floating jacket complete with integrated suction can foundations at the base of each leg.  The substructure was wet towed from the fabricators yard to the field.  The substructure was then ballasted down and lowered to the seabed using assistance from a derrick barge crane.  The pre-installed suction pumps were then used to complete the substructure installation.

The jackup legs were lowered down to stab in to cones on the substructure and then used to jack the 3120 t topsides to the design elevation.

Platform Data

Water Depth                          53.5 m LAT

Substructure                         1200 t, with 4 x Ø2.6m braced vertical    legs to EL-20m at 31m x 31m centres

Foundation                            4 x Ø9m x 8.3m high integrated suction piles

Topsides                                3120t including a 30m x 30m x 7m deep MOAB (1000t), 1400t of topsides equipment and 720t of jackup legs)

 

 

 

 

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