Project Name :Maintain Gas Compression Capacity
Contract : 44349/00
Location : Abqaiq, Saudi Arabia
Client : Technip / Saudi Aramco
Construction Period : 20 Months


MAC was entrusted by Technip-France, as a main sub-contractor, to carry out the multi-discipline civil, buildings, mechanical, electrical, instrumentation, insulation, and painting construction works for Saudi Aramco’s Abqaiq Plants expansion. The project consisted of:

  • A new 100 MMSCFD capacity gas compression train B, Plant 499 including a Heat Recovery Steam Generator
  • A new by-passable heat recovery steam generator in existing train A
  • Three new buildings on Lump Sum Turnkey basis:
  • Electrical Substation # 88.
  • Team Building.
  • Operator Shelter (the former was demolished)
  • Modification of existing buildings:
  • Electrical Substations #19, #20, #38 and #83
  • Process Interface Building – PIB 17
  • A new 700 MMSCFD flare system including installation of 5,700m of 60” piping in existing operational live pipe racks, KO drum and 90m flare.


The works included a shutdown period with the unit in operation, involving execution of up to 60 tie-ins and hot-taps up to 20m elevation and was subjected to special authorizations delivered by SAUDI ARAMCO/TECHNIP under strict Quality and Safety regulations