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October 5, 2014

DeepOcean completes substantial works on Liwan 3-1field in China

DeepOcean UK, a subsidiary of DeepOcean Group, has completed substantial works on the Liwan 3-1 natural gas field in China.

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DeepOcean UK, a subsidiary of DeepOcean Group, has completed substantial works on the Liwan 3-1 natural gas field in China.

Liwan 3-1 is part of the Liwan gas project, located in the South China Sea, about 300km south-east of the Hong Kong special administrative region.

The project, which also features the Liuhua 34-2 and Liuhua 29-1 fields, delivered initial production about seven years after its discovery.

All three fields feature a subsea production system, subsea pipeline transportation and onshore gas processing infrastructure.

DeepOcean started work on the project for COOEC Subsea in March 2012.

Volantis and UT-1 undertook trenching and survey operations on more than 160km of the 30in Liwan pipeline.

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"The pipeline links the Liwan Central Platform in a 200m water-depth to the shore of China National Offshore Oil Corporation’s Gaolan gas plant."

The pipeline links the Liwan Central Platform in a 200m water-depth to the shore of China National Offshore Oil Corporation’s Gaolan gas plant.

Trenching activities were completed in August 2013 in the shallow-water section of the project.

Saipem undertook subsea field development activities in the deep-water section of the Liwan 3-1 field operating ROVs in a water depth of more than 1,400m.

DeepOcean worked with clients to undertake several infield tasks in order to deliver safe subsea operations.

DeepOcean Asia Pacific director Tony Stokes said: "It was a privilege to be part of such a momentous project in China. Working on both segments of China’s first deep-water field development displays the confidence our clients have in DeepOcean’s ability to deliver trenching solutions along with diver-less construction work scopes in the dynamic Asia Pacific Region."


Image: The offshore Liwan Central Platform. Photo: courtesy of Husky Energy Inc.

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