Godavari contract for Reliance Industries in India awardad to Boskalis and Tideway

      

The newest contract in India is located at the Krishna Godavari Basin (Block KGDWN-98/3), an offshore gas field - the largest gas find ever in India - which is being developed on the east coast of the subcontinent, 50 km south of the city of Kakinada.

The gas field extends from the Godavari river mouths, over an area of 7.500 km2 in water depths from 400 m in the northwest to 2.700 m in the southeast.
The first phase of the development calls for the construction of an onshore terminal, three 24" gas pipelines and 6" methanol lines, control and operation cables, and an outfall for rain and process water.

Tideway is operating as a subcontractor to the pipe-laying company Allseas Marine Contractors S.A., with Reliance Industries Ltd. as the client.
The works will be executed in joint venture the Dutch contractor Boskalis.
Tideway will dredge a trench, starting at the point of landfall and extending to 20 km offshore where water depth is about 50 m.
The major part of the trench is situated in the Godavari river mouth itself, where strong currents during the monsoon season make dredging quite difficult.
A total of some 12 million m3 will be removed, after which one million tonnes of rock will be placed as protection.
Finally, several auxiliary constructions such as loadingfacilities/jetties and stockpiling areas will be constructed on the shores of the Godavari river.

From September 2007 untill April 2008 a self-propelled, heavy cutter suction dredger will be used to create an access channel through a sand-bar prohibiting normal access to the river.
Three medium sized trailing suction hopper dredgers will be used to drege the trench along the river section.
During pipe-laying a water injection vessel will combat the effects of sedimentation.
After pipe-laying two stone-dumping/placing units will be used to install the required rock materials the protect the pipes against scour.

      

The new contract is the second one which was obtained by a DEME Group company in the framework of the Godavari offshore gas field project.
In 2006, Dredging International's trailing suction hopper dredger Vlaanderen 20 and the cutter suction dredger Vlaanderen 11 reclaimed a total of 4,4 million m3 in the Gautami-Godavari river estuary.
A large area was raised by 3,7 metres for the construction of the LNG terminal platform.

Both contracts in the Godavari river mouths are commissioned by companies of the Reliance Group, the largest private enterprise in India.
Being accepted as a business partner by Reliance, is considered an invaluable reference in India.
With group revenues of USD 20 billion and 25.000 employees, Reliance Industries Ltd. is a Fortune Global 500 company with activities in the field of exploration and production of oil and gas, petroleum refining and marketing petrochemicals and textiles.
 

Source: DEME Group, February 2007