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

RAISING PERFORMANCE. TOGETHERTMRAISING PERFORMANCE. TOGETHERTM

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

RAISING PERFORMANCE. TOGETHERTM

SUBSEA SYSTEMSSUBSEA CHALLENGES

• Deeper

• Further

• Better

• Added value

• Environment


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


Deepwater Functionality

SUBSEA SYSTEMS

Power Transmission CommunicationSurface Control System

CameronDC™

Power Transmission, CommunicationSurface Control System


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


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


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.


SUBSEA SYSTEMS

How does it work over long distances?

CameronDC™

Power

• Topside unit supplies 3kV DC to each subsea PRCM


• 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


SUBSEA SYSTEMS


CameronDC™

Signal

• System is designed to use subsea LAN protocol TCP/IP


• 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


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


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


SUBSEA SYSTEMS

Scope:

K5F Projectp

2-off Mudline Style X-Mas TreesProduction Control SystemInstallation & Workover Control system (rental)


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


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


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


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


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


SUBSEA SYSTEMS

TMTM

All Electric. All Cameron.

Thank you

Questions?


SUBSEA SYSTEMSSUBSEA SYSTEMS PfPerformance

Documents

Transcript of SUBSEA SYSTEMSSUBSEA SYSTEMS PfPerformance