CNOOC Completes Upgrading Asia’s Largest Offshore Oil and Gas Platform
Click:75    DateTime:Dec.21,2020

On December 19, 2020, the upgrading at renovation project of CNOOC’s Liwan 3-1 natural gas central offshore platform, the largest offshore oil and gas platform in Asia was completed. 

Liwan 3-1 gas field is the first deepwater gas field in China, with water depth at around 1 500 meters. As one of the important gas sources in the Guangdong-Hong Kong-Macao Greater Bay Area, the processed natural gas in the Liwan 3-1 gas field is transported to the Zhuhai Gaolan terminal through a submarine pipeline on the Liwan 3-1 central platform at a water depth of 200 meters. Since operation was launched in 2014, the cumulative production of deepwater gas fields including Liwan 3-1 has exceeded 30 billion cubic meters.

The Liwan 3-1 central platform serves as the “transportation hub” for the large-scale production of deepwater gas fields. Previously, with the increase of the mining life and the access of new gas fields such as Liuhua 29-1, the equipment of the phase I platform gradually failed to meet the requirements for natural gas processing. The platform upgrade project will fully release the production capacity of Liwan 3-1 and other gas fields.