SPECIAL REPORT: Platform with a two-section jacket installed off Turkmenistan

Sept. 22, 2008
Petronas Caragali (Turkmenistan) Sdn. Bhd. recently had a platform installed for producing the oil and gas discovery it made in 2002 off Turkmenistan in the Caspian Sea.

Petronas Caragali (Turkmenistan) Sdn. Bhd. recently had a platform installed for producing the oil and gas discovery it made in 2002 off Turkmenistan in the Caspian Sea.

The platform is in Block 1 in which Petronas Caragali holds a 100% interest.

The first part of the platform installation involved the Titan 4, 600-ton General Shikhlinsky crane barge setting the lower portion of the platform jacket (photo above) in 60 m of water.
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The company says its fourth well, East Livanov 2A, tested flow rates of 14,176 bo/d and 19 MMcfd of gas.

Momentum Engineering out of Dubai built and installed the platform. Momentum Engineering is a unit of the Irish registered Momentum Group,

The photo above shows the crane barge picking up the upper section of jacket from the transportation barge. In the next photo, after installation of the jacket, the crane barge placed the deck on the jacket. The last photo shows welders connecting the deck to the jacket.

Photos from Momentum Engineering.

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The 1,000-ton platform is in a 60-m water depth. The accompanying photos show the installation of the two jacket sections and the deck.

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The installation procedure involved Momentum’s managed crane barge, General Shikhlinsky, first setting the lower 400-ton jacket into place. In the next step, Momentum used its S280 hammer to drive four piles through the jacket skirt to a depth of 68 m.

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After the job of grouting the piles, the crane barge lowered the upper portion of the jacket. Grouting secured the upper section to the lower section.

The last part of the installation involved placing and welding the deck section on to the jacket.