Recently, another major energy development project has ushered in a historic moment—the Wushi 17-2/23-5 Oilfield Group Development Project, surveyed by China Classification Society (CCS), was officially put into operation. This project has become a new model for green development of China’s offshore oil fields, providing a demonstration for the transformation of China’s energy industry towards low-carbon and green development.

“Integration of Six Stations”

The Wushi 17-2/23-5 Oilfield Group is located in the Beibu Gulf of the South China Sea, with an average water depth of about 28m. The development project includes the construction of 3 wellhead platforms and the construction of Wushi onshore terminal to achieve the integration of six stations: crude oil processing station, LNG station, liquefied petroleum gas station, production water station, substation, and 5G base station.

The first “zero emission” oil field

The Wushi 17-2/23-5 Oilfield Group is the first oilfield in the Beibu Gulf of China to achieve “zero emission” of production water. Its terminal processing plant is innovatively constructed with a production water treatment station and an integrated natural gas processing unit. Among them, the production water treatment station processes the oily wastewater produced by the upstream platform to the water injection standards through continuous four-stage water treatment process, and then transport it all to the offshore platform for reinjection into the formation to achieve zero emission and zero pollution throughout the entire process. The integrated natural gas processing unit includes various equipment for deacidification, dehydration, and light hydrocarbon recovery of associated natural gas, as well as LNG and LPG storage tanks that can effectively convert associated natural gas into two products, i.e., LNG and LPG, and store and transport them to achieve deep and effective utilization of associated gas in the whole process.

The first oilfield to use shore power

At the same time, the overall design of the Wushi 17-2/23-5 Oilfield Group adopts shore power generation, which is also the first offshore oilfield that uses shore power in the Beibu Gulf.

Since its launch, CCS has been fully involved in the whole process to ensure the safe and efficient implementation of the project. All participating survey units within the system have provided solid guarantees for the successful production of the project with their professional technical capabilities, rigorous survey standards, and efficient service levels.