Mellitah contracts Technip for Bahr Essalam tieback offshore Libya

Offshore staff

PARISMellitah Oil & Gas has contracted Technip for subsea installations and platform engineering for the Bahr Essalam Phase II development offshore Libya.

The natural gas field, 110 km (68.3 mi) offshore in 190 m (623 ft) of water, will be tied back to the existing Sabratha platform operated by Mellitah, a consortium between Libya’s National Oil Corporation and ENI North Africa.

Technip will be responsible for overall design, detailed engineering and project management, as well as procurement, installation, tie-ins, pre-commissioning, and commissioning related to a gas gathering system.

This will comprise:

  • A 13-km (8-mi) 20-in. production pipeline with a 4-in. piggybacked service line, 11 km (6.8 mi) of 10-in./14-in. pipe-in-pipe production line with a 4-in. piggybacked service line and 10 km (6.2 mi) of 8-in./12-in. pipe-in-pipe production line.
  • Two subsea isolation valve structures and two subsea isolation valve umbilicals.

In addition, Technip will perform trenching and backfilling, installation of a large number of spools, and topsides modifications at Sabratha to receive the gas.

From its operations base in Malta, the company will conduct the offshore installation campaign between 2Q 2017 and 2Q 2018 using various vessels including the Deep Energy for pipelay, the DSV Deep Arctic, and the S-lay vessel G1200.


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