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China’s first deepwater rig undergoes repairs

11th February 2013

Repairs required in CNOOC’s USD 1bn offshore drilling rig after oil leaks

China’s first deepwater rig undergoes repairs
The semi-submersible offshore drilling rig HYSY 981, also known as ‘Offshore Oil 981’ is the first and only deep-water rig designed and built in China

CNOOC’s USD 1 bn deep-water drilling rig is being subject to repairs after oil leaks were found in the rig’s pump room, Reuters reported on Friday. The state-owned oil and gas company expects the rig to contribute to the country’s energy security.

The semi-submersible offshore drilling rig HYSY 981, also known as ‘Offshore Oil 981’ is the first and only deep-water rig designed and built in China.

“Minor leaks were found at one water pump room of ‘Offshore Oil 981’ during routine checks,” CNOOC said.

The company is working to fix the problem in order to resume safe deepwater operations, CNOOC was quoted by Reuters as saying. Maintenance is expected to be completed by the end of February.

HYSY 981 has a maximum operating water depth of 3,000 metres and is capable of drilling 10,000 metres below the seabed. CNOOC used HYSY 981 to drill its first deepwater well in the South China Sea in May 2012, striking a major offshore gas discovery in the Liwan field.

China is the world’s largest energy consumer. China’s aim is to extract as much of its hydrocarbon reserves as possible in order to reduce oil imports.