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              Success Story: Oil & Gas

              Qatar Liquefied Gas Company Ltd (Qatar)

              Qatargas Upstream off-shore platforms

              Success Story: Oil & Gas
               

              I. CUSTOMER ENVIRONMENT / PROJECT CONTEXT

               

              Customer profile:

              • Qatargas Liquefied gas Company Ltd ( a consortium composed of QGPC, Total, Mobil, Mitsui and Marubeni) awarded the national Petroleum Construction Company /Technip Geoproduction joint venture (NPCC/TPG J.V.) the EPC contract for the Process and Utilities platform topsides and McDermott ETPM - East Inc. (MEEI) the EPC contract for the Living Quarters platform topsides.
               

              Customer objective and constraints:

              • The Qatargas Upstream Development is the result of Qatar's ambitions to develop export-oriented industries based on the vast reserves of its North field.
               

              II. SOLUTION IMPLEMENTATION

               

              Implementation methodology (main phases):

              • Design and engineering: 11,000 hours.
              • signing of the contract: June 1994.
              • supply of the equipment: started January 1995.
              • On-shore installation: started November 1995.
              • Off-shore commissioning: started March 1996.
              • gas and condensate ashore: third quarter 1996.
               

              Duration:

              From June 1994 to March 1996.

               

              Solution overview (services, products, systems, architectures...):

               

              Process and Utilities (PU) platform

              • MV switchboard,
              • 2 LV neutral earthing impedances,
              • LV switchboards, MCCs and busducts,
              • on-shore pre-commissioning assistance, off-shore commissioning assistance.

               

              Living Quarters (LQ) platform

              • 2 LV neutral earthing impedances,
              • LV switchboards, MCCs and busducts,
              • on-shore pre-commissioning assistance, off-shore commissioning assistance.

               

              PU and LQ platform power distribution control system

              • Power distribution control system: 200 ms response time automatic load-shedding and re-start facilities, auto-reclose function (managed by local PLC), emergency sequences (local / remote management), interface with other.
              • main redundant PLCs including communication with the process control system,
              • PLCs slaves integrated in the main LV switchboards.
              Solution overview (services, products, systems, architectures...):
               

              III. RESULTS / ACHIEVEMENT

               

              Customer benefits:

              Oil & Gas production increase.

               
               
               
               
               

              Solution breakdown


              Process and Utilities (PU) platform
              • MV switchboard: 1 metalclad Fluair 100 switchboards (6.6 kV) with Sepam protection relays,
              • 2 LV neutral earthing impedances,
              • LV switchboards, MCCs and busducts:  5 MB200 / MB400 LV switchboards (400 V / 50k A) and 2 LV busducts (6000 A - 80 kA),
              • on-shore pre-commissioning assistance, off-shore commissioning assistance.

               
              Living Quarters (LQ) platform
              • 2 LV neutral earthing impedances,
              • LV switchboards, MCCs and busducts: 5MB200 / MB400 LV switchboards (400 V / 50k A), 2 LV busducts (4000 A - 80 kA),
              • on-shore pre-commissioning assistance, off-shore commissioning assistance.

               
              PU and LQ platform power distribution control system
              • Isis 3000 power distribution control system, including colour operator's workstations, including conventional functions: mimic displays, mouse-driven control facilities, analogue value trends and reporting and specific functions: 200 ms response time automatic load-shedding and re-start facilities, auto-reclose function (managed by local PLC), emergency sequences (local / remote management), interface with other.
              • main redundant April 7000 PLCs including JBUS communication with the process control system,
              • April 5000 PLC slaves integrated in the main LV switchboards