The natural gas pipeline of 842 km, 36-24 inch extends from the Bulgarian border of Türkiye to Ankara, including a total of 118 km of offshore pipeline between Ambarli – Pendik and Dil Iskelesi-Hersek in the Marmara Sea at a maximum depth of 90 m. The pipeline has an annual capacity to deliver 14 bcm of natural gas, under 70 barg pressure, into Türkiye through the Ukraine.
Consortium of ENKA/Spie-Capag/Brown and Root entered into a contract with BOTAŞ for the construction of the Former USSR – Türkiye Natural Gas Pipeline in September 1986. The detail design of the pipeline facilities had been done by Fluor (UK) Ltd.
The contract also included a 20 MW compressor station, 11 reducing and metering stations, 9 pig stations, 32 line valves, a dispatching center, 3 maintenance center, and telecommunication and telecontrol systems. The project was financed through a number of export credit agencies, such as US Exim, JEXIM, Coface and ECGD.
