Process pipelines were installed Sunday for the phase I project of CNOOC Yancheng Green Energy Port, marking the connection of the pipelines of the process system, public works system and fire water system and laying a solid foundation for the operation of the station.
CNOOC Yancheng "Green Energy Port" is a comprehensive clean energy project spearheaded by CNOOC Jiangsu LNG Binhai Terminal.
This project, located in the Yellow Sea New District of Yancheng, is a key planning project for the construction and interconnection of the country’s natural gas production, supply, storage and marketing system.
10 large-scale LNG storage tanks were built, including 4 220,000 cubic meters of storage tanks in the first phase and 6 270,000 cubic meters of storage tanks in the first phase of the expansion project.
Upon its operation at the end of 2023, the project will have the capacity to process 6 million tons of LNG per year.
As the key facility of the project, the process pipeline connects all production units in key links such as LNG unloading, storage, external transportation and boil-off gas treatment, and undertakes the important task of transporting raw materials, water, gas and finished products.
The construction quality directly determines the stability and reliability of the entire project, making it the basic guarantee for production safety when the LNG terminal is put into operation.
The total length of the process pipelines of CNOOC Yancheng "Green Energy Port" is about 61 kilometers, which is equivalent to 1.4 marathons.
The installation of the pipeline involves 30 specifications and models, 10 materials and 14 pressure levels.
The project lasted 13 months, and more than 2,300 people participated in the construction during peak periods.
The project team strictly strengthened the quality inspection standards, and organized special training by analyzing the reasons for disqualifications.
According to statistics, in the most critical welding link for the installation quality control of process pipelines, the weld length exceeds 15,000 meters, ensuring a one-time pass rate of 98.48%, which is 0.48 percentage points higher than the construction standard requirements.
At the project site, the construction party is strengthening the construction of six 270,000-cubic-meter LNG storage tanks with the largest single-tank capacity in the world, independently designed and built by China. The design of the process piping system has reserved all the piping connections required for these natural gas storage tanks.
6 million tons of liquefied natural gas is equivalent to 8.5 billion cubic meters of gaseous natural gas. Based on the daily natural gas consumption of residents in Jiangsu province of about 10 million cubic meters in 2020, this project can ensure 28 months of civil liquefied gas use in the province.
If 1 cubic meter can generate 5 kWh of natural gas, 8.5 billion cubic meters of natural gas can generate about 42.5 billion kWh, which can achieve emission reduction of 28.5 million tons of carbon dioxide and 232,500 tons of sulfur dioxide, equivalent to planting 60 million trees.
Expected to grow into the largest LNG reserve base in China, the CNOOC Yancheng "Green Energy Port" is very important for optimizing the energy structure, protecting the ecological environment, accelerating the industrial transformation of the Yangtze River Economic Belt and helping China achieve "carbon peaking and carbon neutrality".
