VESSEL REVIEW | Greenergy Ocean & Greenergy Pearl – Gas carrier pair to support China's global LNG trade

China National Offshore Oil Corporation (CNOOC) recently took delivery of two new LNG carriers in a series that will be operated by its wholly owned subsidiary CNOOC Gas and Power Singapore Trading and Marketing.

The Singaporean-flagged Greenergy Ocean and Greenergy Pearl are the first two vessels in a planned series of six LNG carriers built for CNOOC by China State Shipbuilding Corporation (CSSC) subsidiary Hudong-Zhonghua Shipbuilding.

Fitted with emissions-reducing technology

The vessels will be operated under a long-term charter contract signed in January 2022 between CNOOC and a joint venture formed by CNOOC, COSCO Shipping LNG, and Japanese shipping company Mitsui OSK Lines (MOL). Commercial management of the ships will be the responsibility of MOL LNG Ship Management Singapore.

The newbuilds each have an LOA of 299 metres (981 feet), a beam of 46.4 metres (152 feet), a draught of 11.5 metres (37.7 feet), a depth of 26.25 metres (86.12 feet), GTT membrane type LNG cargo tanks with a total capacity of 174,000 cubic metres (6.14 million cubic feet), and a WinGD 5X72DF2.1 dual-fuel diesel engine fitted with an intelligent control by exhaust recycling (ICER) system.

Satisfying domestic and international design standards

The ICER system can help reduce methane slip in gas mode as well as greenhouse gas emissions. By cooling and recirculating the exhaust gas, the ICER system allows some of the methane in the exhaust gas to be re-combusted, thus further reducing the ship's emissions.

Design and construction of Greenergy Ocean and Greenergy Pearl were undertaken in compliance with China Classification Society and American Bureau of Shipping rules.