PetroChina Jiangsu LNG receiving terminal located in Rudong County, Nantong City, Jiangsu Province, was officially put into operation.
LNG receiving terminal, Two 200,000 cubic meters storage tanks, T-1205 and T-1206, transported natural gas to the outside world. After the project was put into operation, the storage capacity of Jiangsu LNG receiving terminal was increased by 60%, which could increase the supply of 250 million cubic meters of natural gas for the peak gas this winter and next spring, becoming the first 10 million-ton LNG receiving terminal in the Yangtze River Delta region.
Jiangsu LNG receiving terminal Expansion (Phase III) Project is a key project promoted by the construction of the national natural gas production, supply, storage and marketing system and the construction of a coastal 10 million-ton LNG receiving base in Jiangsu Energy Development Plan.
It is also a key project for PetroChina’s implementation of Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era, based on the new stage of development and Thoroughly innovate the concept of development, build a new development pattern, and create a green weapon for the happiness of Chinese.
“In the past, it can not only stand it, but now it can be able to withstand it. Take last winter as an example, the average monthly gas supply can achieve a continuous supply of 35 million cubic meters/day in 20 days. After the third phase of this year’s project is put into operation, we can continue to supply 35 million square meters/day for at least one consecutive month.”
Lu Guofeng, general manager of PetroChina Jiangsu LNG Co., Ltd. (hereinafter referred to as Jiangsu LNG Company), said. After the completion and commissioning of the project, the storage capacity of the LNG receiving terminal has increased to 1.08 million cubic meters, further enhancing the reception and storage capacity of overseas gas sources, natural gas supply and peak regulation of the Belt and Road Initiative, which is of great significance to help achieve the “double carbon” goal.
During the construction of the project, under the guidance of China Oil and Gas Sales Branch, Jiangsu LNG Company has always been guided by the new energy security strategy of “four revolutions and one cooperation” proposed by General Secretary Xi Jinping, and adhered to the principle of “one year laying the foundation, two years of results, and three years of leapfrogging”, in order to continue to build a national excellence project. With the goal, optimize design and construction, innovate management models, focus on improving quality and efficiency, strengthen safety control, resolutely overcome the impact of the epidemic, and make every effort to ensure the safe construction of the project and put into production on time.
LNG receiving terminal project started in November 2018. At the end of July 2021, the tanks were put into operation conditions, and the construction cycle was about half a year shorter than that of the first and second phases of the project.
Comprehensive optimization of tank design and construction
In terms of tank structure, process, equipment, pipelines, etc., the project digests and absorbs the construction experience of the first and second phases to optimize. The design starts from optimizing the foundation treatment scheme, optimizing the design of support platform and dome reinforcement, reducing the height of the inner and outer tanks and reducing the amount of materials used, canceling anchoring belts and expansion joints, and adopting basement isolation technology; the construction adopts primary pile forming technology, tank air drying technology, domestic DOKA template application, etc.
Which greatly reduces the completion of engineering completion. Ben; All equipment, materials and construction of concrete prestressed storage tank walls have been localized, and a single storage tank saves more than 35% of the cost compared with imported materials.
Anchoring goal to ensure the progress of the construction period
Since the start of the project, the project manager department has strictly implemented the overall plan arrangement, strived to overcome many difficulties caused by the COVID-19 epidemic, such as the delayed arrival of foreign materials, the complex environment at the construction site, the small number of personnel, and the tight construction period, and steadily pushed forward the set plan goals.
In 2021, in view of the on-site construction control point multi-faceted wide, electric instrument construction involves the transformation of the original device, the construction of multiple pipelines and other key operation links, the personnel of various professional positions bravely shouldered heavy burdens and actively acted, solved problems one by one, overcome the risk of “operate while building”, and laid a solid foundation for the project to be completed and put into production on time.
Test drive and put into production to improve quality and efficiency
Faced with the problem that the BOG recycling situation caused by the pre-cooling of the tank test drive affects the test cost, the test team of Jiangsu LNG Company’s production and operation center made full use of the BOG generated by the cooling of the T-1205 tank to carry out the natural gas replacement of nitrogen in the T-1206 tank, and adjust it reasonably in combination with the actual production.
The cooling rate of the whole tank, and all the gases generated by the final tank cooling are recovered. This move not only solves the problem of limited processing capacity of the recondenser in the receiving station, but also realizes the recovery of all BOGS generated by the cooling of existing devices and new storage tanks, improving quality and efficiency by nearly 10 million yuan.
Improve the level of fine management throughout the process “LNG receiving terminal”
The project takes the implementation of the “100-day quality and safety management improvement activity” as the starting point, and carries out 8 special improvement activities such as welding quality control optimization, safety and civilized construction improvement, quality and safety common disease control, substation wiring standardization, pipeline cleaning construction improvement, etc.
When a total of 3.44 million safety workers are completed, the “30” safety will be achieved. Full production work goal. The cumulative pass rate of tank wall plate welding in T-1205 and T-1206 tanks is 99.45%, and the cumulative pass rate of process pipeline welding is 98.57 percent. All data are better than the quality control goal.
High-quality party building guarantees high-quality construction
The Party Committee of Jiangsu LNG Company closely follows the project construction and the talent strengthening project, handing over tasks and burdens, trained and trained five young employees full of vitality and strong combat effectiveness, and reserved young talents for project construction. Since the beginning of this year, we have paid close attention to the goal of production progress, carried out solid study and education on party history, and put into operation with high-quality party building to ensure the high-quality construction project.