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How to build a platform
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Transcript of How to build a platform
Long steel tubes are welded together at a fabrication site to make a frame (the jacket).
This jacket framework provides the stability to support the topsides. Once complete, the jacket is maneuvered onto a barge and towed out to the field.
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2The jacket is pushed off the barge, positioned on the seabed, and fastened in place using long metal piles.
The entire construction work of West Chirag wasperformed with full commitment to the highestsafety standards without a single day o� fromwork case throughout around 20 millionman-hours achieved.
Highest safety standards
3The topsides structure is constructed at the fabrication site one deck at a time, incorporating the preordered equipment from specialist suppliers.
5The ‘sail away’ of the 19,500-tonne topsides structure is completed.
About 4000 people including sub-contractors and specialist vendors were involved in the construction works of West Chirag with up to 90% of the workforce being Azerbaijani nationals.
4,000 people
To mark the start-up of oil production from theWest Chirag platform in Azerbaijan, BP outlines the six main steps involved in building such a massive platform.
HOW TO BUILD A PLATFORM IN SIX STEPS
With its completed weight of 19,500 tonnes the West Chirag topsides is the heaviest structure ever installed in the Caspian and it was fully constructed in the country using local infrastructure at the ATA fabrication yard which was upgraded for this scale of activities.
19,500 tonnes
The design oil capacity of West Chirag is 183 thousand barrels per day. The gas export capacity is 285 million standard cubic feet per day.
183 thousand barrels per day
Build jacket
Float & secure jacket
Build topside
4Construction of the multi-decked topsides is completed, connecting all the pipework and equipment, including power generation, the control systems, drilling rig, accommodation block and helipad. The topsides structure is jacked up and prepared for load-out onto a barge.
Complete topside
Transport topside
6The topsides structure is floated over the jacket and lowered into place, followed by commissioning and start-up.
Attach topside to jacket