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I. CUSTOMER ENVIRONMENT / PROJECT CONTEXT
Customer profile:
- Qatargas Liquefied gas Company Ltd ( a consortium composed of QGPC, Total, Mobil, Mitsui and Marubeni) awarded 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 or 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, MCC's and busducts,
- on-shore pre-commissioning assistance, off-shore commissioning assistance.
Living Quarters (LQ) platform
- 2 LV neutral earthing impedances,
- LV switchboards, MCC's 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 PLC's including communication with the process control system,
- PLC's slaves integrated in the main LV switchboards.
III. RESULTS / ACHIEVEMENT
Customer benefits:
Oil & Gas production increase.
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Requests for Solutions, Products and Services information
Solution breakdown
Process and Utilities (PU) platform
- MV switchboard: 1 metalclad Fluair 100 switchboard (6.6 kV) with Sepam protection relays,
- 2 LV neutral earthing impedances,
- LV switchboards, MCC's 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, MCC's 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 color operator's workstations, including conventional functions: mimic displays, mouse-driven control facilities, analog 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 PLC's including JBUS communication with the process control system,
- April 5000 PLC's slaves integrated in the main LV switchboards
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