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TRANSCRIPT
![Page 1: Siemens On-stage PowerPoint-Templatesite.ieee.org/norway-pes/files/2017/11/IEEE-Presentation-at-SINTEF-02-May.pdf · Subsea Switchgear Subsea VSD • 6 MVA, 6,6 kV, 525 A • Multi](https://reader030.vdocuments.us/reader030/viewer/2022013021/5f02fccd7e708231d406fc03/html5/thumbnails/1.jpg)
Siemens SubseaAravinda Perera, Edson Federighi2nd May 2017
www.siemens.com/subseaRestricted © Siemens AG 2017
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Subsea future is electrical
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Agenda
Introduction to Siemens Subsea Technology
Subsea Power Grid
Siemens Qualification Process
Next Steps and Deployment Example
Conclusion and Q&A
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Part I
Introduction to Siemens Subsea Technology
Subsea Power Grid
Siemens Qualification Process
Next Steps and Deployment Example
Concluding Remarks
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Why Subsea Power Grid?
• Longer reach & distances• Deepwater applications
• Rough weather - no longer an operational risk
Enable exploration of remote fields
Less equipment installed on the topside platforms
• Space and weight restrictions on topside• Present offshore hubs – to cover larger areas• Distributed oilfields requires more subsea processing• Multiple subsea processing units at one location
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Increased oil recovery –largest asset for the operators
Courtesy of Statoil
Chevron:1% increased recovery in GoM à 3 billion EUR
Statoil:1% increased recovery on NCSà 40 billion EUR
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Subsea Power Grid –Where are the markets
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ApplicationSubsea Processing – A suite of tools
Subsea BoostingSubsea Separation
InjectionSubsea Water
Injection
Subsea Well(s)
Reduced volumeà lower resistancein transport
Reduced inflow pressureàmore volumeproduced
Increased driving pressure in reservoirà increasedflow from well
Host
(Tieback)Host
(Tieback)Step-out (km)
Separation
Water InjectionSubseaESP
Reduced inflow pressureàmore volume produced
ESP
Boosting
Courtesy of Statoil
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Field Development Technologies AvailableSubsea Power Consumers
Pumping
SeparationSubsea PowerGrid
Subsea Production System
Compression
Water Injection
Electrical Pipeline heating
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Siemens Subsea – Portfolio Mapping
Connectors
Connectors
Sensors
Jumpers(Distribution)
Service (LCM): Commissioning, InstallationSupervision, Spare Parts
Cobra Head(Distribution)
Sensors
Connector
Subsea Power , Control & CommunicationSystems
(VSD, Transformer, Switchgear & Control systems)
UTAs/SDU’s
Pipe Line Heating Systems
Flow Meter
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Part II
Introduction to Siemens Subsea Technology
Subsea Power Grid
Siemens Qualification Process
Next Steps and Deployment Example
Concluding Remarks
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The Siemens Subsea Power GridKey features of main building blocks
• Scalable• Designed and qualified for 3,000
meters water depth• Oil-filled• Pressurized• Cooling by natural convection• No differential pressure on
penetrations/connectors• Condition monitoring• Universal and redundant control
system
Power Grid• Large power range 1-100 MVA• High efficiency• Environmentally-friendly
Subsea Switchgear
Subsea VSD
• 6 MVA, 6,6 kV, 525 A• Multi cell topology• Built-in redundancy• Advanced cell bypass
Subsea Transformer
• 38 kV, 500 A feeders• Integrated auxiliary supply• SIPROTEC protection system
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Subsea Power Grid - plug & play
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M
A1
B1
C1
A2
B2
C2
A3
B3
C3
A4
B4
C4
A5
B5
C5
Example includes 15 Cells
Three Phases (Phase A, B, C) with 5 Cells in Series
Input fromtransformerSecondary
Poweroutputof cell
Variable Speed Drive
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VSD / SWGR
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Subsea Switchgear – Electrical Relay Power Unit
•Protection and fault handling
•Monitoring of consumer (over current, ground fault etc.)
•Redundancy
•Connectivity
•Standard interfaces
•Communication to various subsea consumers and to topside
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• Control & communication• Protection• Condition monitoring• Redundancy
• Control & communication• Protection• Condition monitoring• Redundancy
• Control & communication• Protection• Condition monitoring• Redundancy
Integration of control & communication
Top level control redundancy
Subsea networkredundancy
Control resource redundancy
Topside Control system
EPCU A EPCU B
Transf. RTU A Transf. RTU B SSU RTU A SSU RTU B VSD RTU A VSD RTU B
Protectivedevices A
Protectivedevices B
Transformer Switchgear unit VSD
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Part III
Introduction to Siemens Subsea Technology
Subsea Power Grid
Siemens Qualification Process
Next Steps and Deployment Example
Concluding Remarks
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Qualification ProgramMain Goal
Provide a fit for purpose technologyIdentify, define and perform tests to assure the products developed will meet the aplication requirements
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Qualification ProgramKey challenges for subsea power distribution
• Cost and time to repair è Reliability
• Lack of acknowledged standards
• Ambient conditions – Water and high pressure
• Long life time with lowest intervention
• Thermal management
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Components
Sub-assemblies
System (inshallow water)
Modules
~~~
Components
Sub-assemblies
System (inshallow water)
Modules
~~~
Demonstrated reliability through qualification
• Hyperbaric
• Function under pressure
• Material compatibility
• Long term endurance
• Function under pressure
• Function test dry
System
Modules
Sub-assemblies
Components
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Part IV
Introduction to Siemens Subsea Technology
Subsea Power Grid
Siemens Qualification Process
Next Steps and Deployment Example
Concluding Remarks
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Subsea Power GridDevelopment Status in a nutshell
• Subsea Transformer Qualified
• Subsea VSD and SWGR tested in air
• Subsea VSD and SWGR being prepared for shallow water tests
• Integrated shallow water tests planned to start next Autumn
• Subsea Power Grid qualified
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Field Layout Example
Typical Layout includes
• Connection to host power plant
• Umbilical cables
• Pipelines
• Manifolds
• Pumps
• Valves, sensors
• Electrical consumers
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Part V
Introduction to Siemens Subsea Technology
Subsea Power Grid
Siemens Qualification Process
Next Steps and Deployment Example
Concluding Remarks
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Summary – Subsea Power Grid
• Subsea Power Grid
• Other develpments ongoing• Subsea DEH• Control System Technology – In cooperation with SAIPEM
Subsea Power Grid
• Highest power quality
•Input & output
•Enables large scalesubsea processing
• Modular philosophy
• Pressure compensated
• Fluid filled
• Natural cooling
• Power control and CM
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Other Applications of Subsea Power Grid
Direct Electrical Heating
Siemens – SAIPEM Partnership for Subsea Control System
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Questions & Answers
We are happy to answer your questions!
Edson FederighiSubsea Conceptual [email protected]
Aravinda PereraSubsea Systems [email protected]