QINGDAO -- The last two core modules of a Canadian liquefied natural gas (LNG) project, the world's first to realize the integrated construction of core process modules and pipe gallery modules, were completed and delivered in Qingdao City of east China's Shandong Province on Tuesday.

Built by China Offshore Oil Engineering Co., a unit of the China National Offshore Oil Corporation (CNOOC), the project adopts the method of modular construction.

The first phase of the project consists of 35 modules involving more than 770,000 structural parts, weighing about 179,000 tonnes, with the total length of its cables extending some 1,270 kilometers.

"The project creates the world's first integrated construction model of core process modules and pipe gallery modules. On the one hand, it saves the construction area and improve economic benefits. On the other hand, it has obvious advantages in environmental protection," said Liu Kai, executive deputy manager of the Canadian LNG project under COOEC.

With the largest module weighing up to more than 8,200 tonnes, the Chinese builders have widely applied the information technology in their project management, creating a record of 43.76 million safe working hours in the field of LNG modular construction in the world.
"We've completed two world-first technological applications in the project, realized more than 10 domestic first-time technological innovations, such as the joint application of dual digital systems, and self-modularized transport carrier jack-up assembly, greatly improving the level of digitized and visualized construction technology and the efficiency of project management," said He Xiaochao, construction manager of the project.

The first phase, including two liquefaction trains, will achieve an annual output of 14 million tonnes of liquefied natural gas after being put into operation. It will supply high-quality natural gas to China and other Asian countries and diversify the country's import channels of natural gas.