Siemens On-stage...

Siemens SubseaAravinda Perera, Edson Federighi2nd May 2017

www.siemens.com/subseaRestricted © Siemens AG 2017

Restricted © Siemens AG 201702 May 2017 Edson / Aravinda

Subsea future is electrical


Agenda

Introduction to Siemens Subsea Technology

Subsea Power Grid

Siemens Qualification Process

Next Steps and Deployment Example

Conclusion and Q&A

https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwiU47qKnfDSAhUhCZoKHZjvDKYQjRwIBw&url=https://clipartfest.com/categories/view/678edc7fd73bcf8ceb6c4d83cd30ef955a80675a/old-clip-art.html&bvm=bv.150729734,d.bGs&psig=AFQjCNGG5bekCyl-GXKa8vGZIAve47dQDQ&ust=1490482197572449


Part I


Subsea Power Grid



Concluding Remarks


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


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


Subsea Power Grid –Where are the markets


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


Field Development Technologies AvailableSubsea Power Consumers

Pumping

SeparationSubsea PowerGrid

Subsea Production System

Compression

Water Injection

Electrical Pipeline heating


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


Part II


Subsea Power Grid



Concluding Remarks


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


Subsea Power Grid - plug & play


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


VSD / SWGR


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


• 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


Part III


Subsea Power Grid



Concluding Remarks


Qualification ProgramMain Goal

Provide a fit for purpose technologyIdentify, define and perform tests to assure the products developed will meet the aplication requirements


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


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


Part IV


Subsea Power Grid



Concluding Remarks


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


Field Layout Example

Typical Layout includes

• Connection to host power plant

• Umbilical cables

• Pipelines

• Manifolds

• Pumps

• Valves, sensors

• Electrical consumers


Part V


Subsea Power Grid



Concluding Remarks


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


Other Applications of Subsea Power Grid

Direct Electrical Heating

Siemens – SAIPEM Partnership for Subsea Control System


Questions & Answers

We are happy to answer your questions!

Edson FederighiSubsea Conceptual [email protected]

Aravinda PereraSubsea Systems [email protected]

Siemens On-stage...

Documents

Transcript of Siemens On-stage...