Construction of two underwater tunnels for the China-Russia east-route natural gas pipeline¹ has been completed and passed acceptance checks, constructors said.

 

中-俄东线天然气管道两条水底隧道已经完工并通过检查验收。
 

 

The two tunnels, each 1,139 meters long, connect Heihe in northeast China's Heilongjiang Province and Blagoveshchensk in Russia.

 

This underwater shield crossing project passes through the Heilongjiang River along the Sino-Russian border. The workers had to overcome challenges such as extremely cold weather and complicated landforms to complete the project.

 

The project was completed as scheduled with high quality, the inspector² SGS S.A. said, after going through the entire process together with China Petroleum³ Pipeline Engineering Co., Ltd., the Chinese constructor.

 

The 3,371-km-long Chinese section of China-Russia east-route natural gas pipeline starts in Heihe and terminates in Shanghai. Construction began in June 2015 and will be completed in 2020.

 

The Russian part of the pipeline, which started construction on Sept. 1, 2014, will link the Kovyktin and Chayandin gas fields in Siberia with the eastern port city of Vladivostok, covering a total distance of nearly 4,000 km.

 

Upon completion, the pipeline is expected to provide China with 38 billion cubic meters of natural gas from Russia annually⁴.

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