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Ormen Lange PMS / FAS

Pipeline Management System -
an integrated part of Flow Assurance System

"The Shell Operations Support Team finds the Flow Assurance System (FAS) very useful in monitoring, surveillance and optimization of Ormen Lange production. As a part of the FAS, the inbuilt Pipeline Management System adds significant value in the daily decision making and minimizes the potential flow assurance risks. We are pleased with the support from the FAS suppliers, FMC Technologies and SPT Group."

Cathy Burns, Flow Assurance Engineer, Shell

Operator StatoilHydro (development), Shell (operation)
FAS companies

FMC Technologies (FAS Project Lead)
Prediktor
SPT Group

Country Norway
Delivery 2007
FAS main parts

Pipeline Management System (SPT Group)
- Implemented in four execution modes
- Liquid hold-up monitoring
- Estimates liquid surges arrival time
- MEG tracking
- Pig tracking
- Gas re-circulation
- Well start-up / shutdown
- Production ramp-up / ramp-down
- Monitoring of possible blockages / leakages
- Simulate changes in well routing
- Simulate connected / disconnected
   slug catchers

MEG Injection Monitoring and Control System (FMC Technologies)
- Verifies MEG injection into each well
- Verifies MEG injection into every flexible spool

Virtual Flow Meter System (FMC Technologies)
- Validates wet gas meters and subsea
  instrumentation
- Calculates flow rates and fluid characteristics
  in production system
- May be used as back-up to physical meters

Production Choke Control System
(FMC Technologies)
- Advise & Control of wellhead choke openings
- Ramp-up features when required

Formation Water Monitoring System
(FMC Technologies)

Integration ABB Industrial IT onshore plant control system
FMC Technologies subsea control system
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PMS Model
(OLGA)

16 production wells
Infield flowlines
Two 30” multiphase pipelines subsea to onshore (120 km)
Slugcatchers (2 double)
Separation and heaters
Gas trains
MEG regeneration and injection system

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PMS Modes		 Real-time
Look-ahead
Planning
Trial
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PMS Applications

Transparent production system
Virtual metering
Slug and surge volume advisor
Pig tracking advisor
MEG Inhibitor Tracking & Inventory Advisor
Hydrate advisor
Leakage detection & location advisor
Blockage detection advisor
Ramp-up advisor
Automatic start up tuning
Look-back tuning

Ormen Lange Project

Accurate simulations for design and operation of the multiphase pipelines is vital to sound field development and operations.

 

SPT Group’s OLGA technology has significantly contributed to the development of one of the world’s most ambitious offshore developments.

 

The economics of Norway’s deepest gas condensate field was improved significantly by overcoming the challenges of a direct, 120 km tie-back from a deepwater subsea completion development directly to the shore. OLGA enabled detailed
understanding of the dynamics of the produced liquids and gases transported in the tieback pipelines.

 

Continued safe and reliable operation of the pipelines has been ensured by the successful application of the same technology in on-line operator advisors.

 

Links

 

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