Trans Anatolian Natural Gas Pipeline (TANAP) Project – FEED

Trans Anatolian Natural Gas Pipeline (TANAP) Project – FEED

ENKA executed the Front-End Engineering Design (FEED) services for the portion in Turkish territory for TANAP in collaboration with Bechtel Inc.

TANAP was designed to be a buried natural gas pipeline system including all of the above and subground facilities with a total length of 1,950 kilometers. The project consisted of the pipeline starting from the Turkish-Georgian border which then crosses 21 Turkish provinces ending at the Turkish-Greek border. It also included the facilities such as compressor stations, metering stations, off-take stations, block valve stations, SCADA, telecom and control systems, and other related equipment and installations inside Turkey. The pipeline dimensions, by design, were: 56” from Georgian border to Eskişehir and 48” from Eskişehir to the Greek border. When operating at high flow capacity, the pipeline system was designed to transport 31 billion m3 of natural gas annually, thus meeting its required specifications.

From mid-2014, “Work Order No. 1” including FEED works on the TANAP project were successfully completed. The scope of the work included the endorsement of the design basis, FEED surveys, permits, land acquisition activities and providing support for the procurement of long lead items and construction contractors’ tenders.

In this context, ENKA provided a strategic contribution to the project as a local partner of the engineering contractor and played a key role in the completion of FEED for the pipeline project with its local resources.

One of the world’s longest gas pipeline project with a total length of 1,950 kilometers

Project Description

Trans Anatolian Natural Gas Pipeline (TANAP) Project – FEED

  • FEED Engineering Services

Project Features

Scope of Work
FEED Engineering Services
ENKA – Bechtel Joint Venture (50 %)
TANAP Doğalgaz İletim A.Ş.(SOCAR 58% + BOTAŞ/TPAO 30% + BP 12%)
Key Quantities
Pipeline 56”1,800 km
Pipeline 48″150 km
Gas Transport Capacity31 billion m³
Compressor Stations6 ea
Metering Stations6 ea
Project Duration
Start Date01.05.2013
Finish Date01.08.2014
Duration15 Months


Ankara, Turkey

Related Projects

Produced Water Treatment Facility

Produced Water Treatment...

Basrah Current Energy...
FGP – Wellhead Pressure Management Project – Core Substation ME&I Installation

FGP – Wellhead...

Completed Kazakhstan...
Civil, Mechanical, Electrical, Pre-Com&Commissioning Works on EPC-3 Island

Civil, Mechanical,...

Completed Kazakhstan...
FGP – Cargo Transportation Route Channel Works of Caspian Sea

FGP – Cargo...

Completed Kazakhstan...