SUBSEA SYSTEMSSUBSEA SYSTEMS PfPerformance
Transcript of SUBSEA SYSTEMSSUBSEA SYSTEMS PfPerformance
SUBSEA SYSTEMSSUBSEA SYSTEMS
P fPerformanceT H R O U G H L E A D E R S H I PT H R O U G H L E A D E R S H I P
11th June 200811 June 2008Subsea Asia 2008
Experiences in executing the World’s fi t All El t i T P j t
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first All Electric Tree Project
SUBSEA SYSTEMS
Experiences in executing theExperiences in executing the World’s first All Electric Tree Project
• Subsea Challenges or why do we need All Electric systems
• Introduction to CameronDC™
• Executing K5F for TOTAL E&P Netherlands
• Summary
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SUBSEA SYSTEMSSUBSEA CHALLENGES
• Deeper
• Further
• Better
• Added value
• Environment
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SUBSEA SYSTEMS
MAJOR SHORTCOMINGS C t T h l
SUBSEA CHALLENGES
MAJOR SHORTCOMINGS – Current TechnologyCOST
Large Umbilicals– Large Umbilicals– Complex Equipment – Control Fluid Management
GREATEST SHORTCOMINGRELIABILITY– Complex System DEPENDENCE
GREATEST SHORTCOMING
– Moving Parts / Seals
EFFICIENCYON
HYDRAULICS– Response Time / Start-up– Inadequate Condition Monitoring
LIMITED– Step Out Constraints– Deepwater Functionality
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Deepwater Functionality
SUBSEA SYSTEMS
Power Transmission CommunicationSurface Control System
CameronDC™
Power Transmission, CommunicationSurface Control System
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Subsea Control ModuleElectric Actuation
SUBSEA SYSTEMS
Gate Valve Actuators
CameronDC™
Gate Valve Actuators
• Used with Standard Subsea Gate ValveElectrically opened with Low power to hold open• Electrically opened, with Low power to hold open
• Failsafe close using standard Spring Return• Redundant• Direct position indication (@ actuator stem)
Gearing and
Gate Valve Fail-CloseSpring Module
Electric Motors
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andClutches
Spring Module Motors
SUBSEA SYSTEMS
Choke Actuator
CameronDC™
Choke Actuator
• Used with standard Subsea Insert Choke• Electrically functioned; Infinitely adjustable (no ‘stepping’)• Electrically functioned; Infinitely adjustable (no stepping )• Fail “as is” design• Redundant
Di t iti i di ti (@ t t t )• Direct position indication (@ actuator stem)• < 2 minute from full open to full close (variable)• continuous operation (flow control)
Pinion / RingGears
(Self Locking)ElectricElectric Motors
(Self Locking)
Standard
Actuator
StandardInsert
ChokeRoller Bearing
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Roller Bearing and Spindle
SUBSEA SYSTEMS
S S CO O
CameronDC™
SUBSEA CONTROL
Electric Subsea Control Module (ESCM)Electric Subsea Control Module (ESCM)
• Power Communication Distribution• Actuator Control Unit.• Motor control Unit• Interface module for third party sensors.
Po er Reg lation and Comm nication Mod lePower Regulation and Communication Module (PRCM)
• Communication moduleCommunication module.• Power Regulator for converting transmission voltage
to actuation voltage.
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SUBSEA SYSTEMS
How does it work over long distances?
CameronDC™
Power
• Topside unit supplies 3kV DC to each subsea PRCM
How does it work over long distances?
• Topside unit supplies 3kV DC to each subsea PRCM• On demand (Actuator open) the current will be increased to the required level• PRCM will provide the required power to the eSCM and will command Valve to
openopen• Once Actuator is open - power is only needed to hold it open (50 – 100 Watts)• Topside Unit will reduce the current via Power Management Software
640 km Subsea endTopside
3 kV
Seawater ReturnSeawater Return
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SUBSEA SYSTEMS
How does it work over long distances?
CameronDC™
Signal
• System is designed to use subsea LAN protocol TCP/IP
How does it work over long distances?
• System is designed to use subsea LAN – protocol TCP/IP• Shore to Subsea via Fiber Optic with Repeaters – min. 100 Mbit/s• Seabed communication is high speed DSL – min. 192 kBit/s on twisted pair –
or fiber opticor fiber optic• Remote manageable switches subsea• All applicable units are selectable via IP address
640 km Subsea endTopsideFO w/ Repeater
< 15 km
Highspeed DSL
SUT
Template U
Template T
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Template P
SUBSEA SYSTEMS
Redundancy Concept
CameronDC™
MCS Rig Power
Rig Power
Redundancy Concept
EPCU ‘B’
EPCU ‘A’ PowerPower
Anode Umbilical
Anode Umbilical
PRCM PRCM
Anode AnodeUmbilicalSeawater
ReturnSeawater
ReturnPRCM
‘A’PRCM
‘B’
eSCM eSCM
CathodeCathode
eSCM‘A’
eSCM ‘B’
Act 1A BCurrentlyCurrently Maximum 16 Functions, this includes Sensor
Act 2A B
SA B
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Sensor readbacks
SensorA B
SUBSEA SYSTEMS
Environment & Safety
CameronDC™
Environment & SafetyEnvironment
• Zero discharge policy means no fluid discharge
– Closed return needs extra line
• Short Times for Start-up and ESD
Safety
• No pressure system
• No gas bottle handling
• No prechargingNo precharging
• No accumulators
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SUBSEA SYSTEMS
Scope:
K5F Projectp
2-off Mudline Style X-Mas TreesProduction Control SystemInstallation & Workover Control system (rental)
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SUBSEA SYSTEMS
System Application Challenges
K5F Project
Bring Product from R&D into Industrial
System Application, Challenges
Bring Product from R&D into Industrial Environment• Know-how transfer• Lock-in Vendors and develop• Repeatability
eSCM
Product Qualification and Project Execution in Parallel• Assembly in a step by step approach• Focus on Long Lead items first
M t f Ch• Management of Change
PRCM
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PRCM
SUBSEA SYSTEMS
FIT/SIT Set-upK5F Project
FIT/SIT Set-up
2 off X Mas Trees2-off X-Mas TreesTopside ControlsDistribution, incl.• 5 Km Umb. Redundant• Seawater tank w/ PRCMs, Anodes and Cathodes
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Anodes and CathodesIWOCS
SUBSEA SYSTEMS
FIT/SIT Set-upK5F Project
PRCM
p
PRCM
Cathode
2-off EPCU’s MCSAnode
2-off EPCU s MCSSeawater Tank
E-Actuator
SCM Coax
X M T t i
eSCM Coax Cable
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X-Mas Tree, top view 2-off 5 Km Umbilical
SUBSEA SYSTEMS
System Application, InstallationK5F Project
y pp ,
EPCU‘s installed on TOTAL‘s K6 Platform First X-mas Tree being
installed on K5F2Operation of Tree during
Well Test, using the DC IWOCS System
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DC-IWOCS System
SUBSEA SYSTEMSSummary
Conclusions or why TM
• DC power mandatoryT l i t l f i dl• Truly environmental friendly
• High Reliability and Availability through Design & Concept
• Redundancy
• Network concept
• Umbilical/Fluid Savings• Efficient System Startup • ESD execution time
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SUBSEA SYSTEMS
TMTM
All Electric. All Cameron.
Thank you
Questions?
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