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Operator Gazociągów Przesyłowych Gaz System SA
Construction of the DN700 Poland – Lithuania gas pipeline, section 2 together with accompanying infrastructure
The objective of the project was to build a new cross-border gas pipeline that connected the natural gas transmission systems of Poland and Lithuania. The parties to the project were Gaz – System S.A. and Amber Grid AB.
The investment project was implemented under the Act of April 24, 2009 on investments in the liquefied natural gas regasification terminal in Świnoujście and was located in the Podlaskie and Warmińsko-Mazurskie Voivodeships.
The construction included:
a) DN700 high pressure gas pipeline MOP 8.4MPa, 76.9km long
b) 3 stop and bleed units with control instrumentation (I&C)
c) 4 trenchless crossings using the HDD (Horizontal Directional Drilling) method
d) 3 trenchless crossings using the microtunneling method
e) 28 trenchless crossings using the drilling/jacking method
f) fibre optic cable installation
g) cathodic protection installation (protection against corrosion)
The welding work was performed using the CRC Evans automatic method. Due to difficult geological conditions, some sections were laid on a expanded clay mattress to stabilize them.
Investment location
Budowa gazociągu DN700 Polska – Litwa odc. 2
