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Author line xIxx11-03

Presentation for COOEC, TangguDeepwater Technologiesseen from E+I point of viewBy Odd Arne Grandum

Solutions for the Oil & Gas Industry

Topics for presentation

• Introduction• Deep Water Technology, what is it• Siemens Concept for Instrumentation, Central

Control System• Project Studies


Introduction, Siemens Oil and Gas, Offshore Business Area

ELECTRICAL+AUTOMATION+TELECOMFOR


Deep water technology

When does deep water technologies apply:When a floating facility is selected for offshore drilling and or production facilities.

Examples:• FPSO• Semi Submersible platform• TLP• SPAR

A floating facility means additional requirements compared to fixed installations:– Ballast control– Station keeping (Thrusters, mooring or tension legs)– Safety aspects, E0, watch call…– 3rd party involvement– Normally combined with sub sea installations– EMS, Environmental Monitoring Systems


Typical Deep Water field, local floating facilities

Topside crude processingSubsea well headsSubsea manifolds

Subsea pumps

Subsea gas compressionSubsea separation


New trend for gas fields, no local floating facilities

And Malampaya


CNOOC presentation in Norway Aug 2004

Presentation by Mr. Zhang Guohua in Stavanger, Norway in August 2004.


Ballast and Cargo Control

• Part of safety system• 3rd party system approval needed• Calculates stability of facility, being part of IMS or

separate load computer connected via Ethernet link• Operates the ballast pumps and valves to achieve

safe and horizontal position in the water


Ballast, Bilge and Watertight Appliances

Primary functions implemented in the main control system:• Ballast level measurements and volume/mass calculations• Ballast valve/pump operations in various modes• Bilge level/valve control functions• Watertight appliances monitoring and control• Draught sensor level measurements and calculations• Hull stress measurements and calculations• Environmental and vessel movement logging and

monitoring

Supervisory functions from IMS or load computer• Stability/trim calculations and reporting• Ballast advisory functions (option)• Weight administration and management

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Ballast Control

Two main parts: • The primary ballast and bilge

control and monitoring integrated in the overall control system, and

• The supervisory functions by the load computer, a stand alone PC solution or an integrated solution in the Information Management System (IMS).

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Ballast control topology


Bilge Control

Bilge system works automatically based on liquid level in the bilge wells.

It is triggered when a predefined level is reached by opening the bilge valve, starting the pump and monitoring the operation


Watertight appliances

• Remote (emergency) closing of all the watertight appliances from CCR

• Closed feedback signal from the watertight appliances control system

• Alarm if door has been left open for more than 1 hour.

• 3 alarms according to Rules (Low hydraulic oil pressure, low hydraulic oil level, power failure)


Station keeping

Systems to keep the facility in position

For FPSOs and Semi-subs:• Thrusters• Mooring• Combination of thrusters and

mooring• Normally assisted by a dynamic

positioning system to give reference point (DP-system)

For TLPs and SPARs• Tension legs


Thruster Control

• Monitored from the vessels HMI system.

• Operated by special thruster console by levers and joystick

• Processing of information in the process controller

• Output goes via thruster drives to thruster motors

• Thruster motor turns a propeller


Thruster Panel

Input from weather station and GPS

Or full control from DP systemManual/Automatic operation


Mooring Control

To keep facility in position to correct for influences from currents and winds


Thruster assisted mooring

DnV notation Posmoor ATA.Combines mooring and thruster to optimum

capacity and power consumption


Tension leg control

Facility held in place by steel bars fixed to the seabed.

Used for TLPs and SPARsFacility is pulled down into the sea

by the steel bars.Pull forces are monitored and being

controllable


Subsea installations

Refer to separate presentation of Siemens Subsea solutions


Siemens Concept for deepwater facilities

• Use of a standard, mass produced system platform, PCS7

• Communication strategy• System integration, all sub system on same hardware

and software platform• Solutions for robust climate and hazardous areas• In accordance and certified with international

standards for safety applications IEC 61508 and many other standards for EMC, programming language, interconnectivity …….


System platform

PCS7 process control system is basis for implementation of control functions

Single or redundant configuration on all levels

All control functions in same system platforms

• Vessel Control• Process Control• Safety systems (F&G, ESD)

OS OS OS OS OS OS ES


System Integration

– Wellhead Control, Sub Sea Topside Control, Oil & Gas Separation and Stabilization, topside and sub sea

– Gas Dehydration, Gas Compression and re-injection– Compressor and Anti-surge Control, Water Treatment & Water Injection– Heating and Cooling– Power Generation, Distribution, Load Shedding, Management– FPSO & Marine and drilling Systems– Utility Systems & Mechanical Packages– …… and ESD/F&G related to whole facility


Communication Strategy

Based on well proven technology, • Ethernet from 1970s and • ProfiBus from end of 1980s.• Modbus and other protocols also possible, mainly for

point-to-point.Fibre optic cable give great savings.ProfiSafe protocol SIL3 certified for remote i/o.Sticking to internationally accepted standards.


Power management functions

• Generator Logic Control, Synchronising• Generator Load and Frequency Control• Network Control, underfrequency• Power Reservation, Load Limitation, Load

Shedding Load Demand (power request from heavy consumers)

• Black-Out Prevention, Restart after black out• Network monitoring (black-out, under-

frequency, etc.)• Fault diagnosis


For robust environments

Remote i/o:• Certified to Hazardous

area zone 1• Enclosure IP degree to fit

with environment• Minimum power

consumption• Fiber optical bus

communication• Service and maintenance

during operation • Hot swap of all modules• Door can be opened and

no purging needed• Light and compact


Certified to international standards

Safety systemsHazardous areasEMS, CE …Configuration languageQuality ManagementHalon free …..


Project studies

A short look at some relevant projects:• White Rose, Husky Oil/Samsung, in operation• DSS-20, Maersk Contractors/Keppel FELS, in

operation• P-50, Petrobras, last phase of commissioning• SSP 300, Sevan Marine/Yantai Raffles Shipyard,

under construction


White Rose, FPSO (1)

• In operation East of Newfoundland

• Operated by Husky Oil• Production facility with

wells bundled by subseamanifolds

• Anchored turret, but can move or drop risers if iceberg on collision course.

• 3 contracts for integrated control system:– Hull, SHI, Korea– Turret, SBM, Monaco – Topside, Aker, Canada


White Rose, FPSO (2)


DSS-20, Maersk Contractors, Caspian Sea

• Moored drilling rig• Semi submersible

hull• Simple control

system, but still 2400 signals from marine control system.


P-50, converted tanker to FPSO for


SSP 300, Sevan Marine/Yantai Raffles Shipyard

• Round shape eliminates turret.

• Anchor positioned• Generic multi purpose

concept


SSP 300, Round hull FPSO


Typical topology for marine systems for DP class III


Example, DP class III, ORS Pioneer, Yantai RS


Typical SLD for DP class III rig, (drilling/no processing)

Author line xIxx11-03

Contact:Siemens ASOil & Gas DivisionAttn. Mr. Odd Arne GrandumPostbox 1, N-0518 [email protected]+47 2263 2421

Thank you very much for your attention.


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SISOG DEAP

DEAPShort form

Our Portefolio

Subsea transformers

LV Switchboard

MV Circuit Breaker

Power & Control

Safety controllers

Communication

Drives

Well Control Unit

Distribution for Downhole pumps


Our Portfolio

Our Subsea Portfolio includes:

Fuel cell power systemsElectrical power distribution systems and drivesElectronic control systems and instrumentationCommunication systemsAssociated engineering and operational services

The subsea systems integrate seamlessly with our topsideand shore based technologies and solutions.

NEW: Co-operation with FMC to develop sub sea gas compressor announced recently

2 AUG-04

<< overview


Fuel cells basics

The electrochemical principle of fuel cellsFuel cells work with the movement of ions across their electrolyte when air and fuel are supplied to the cell. Using SOFC technology as an example, air is ionized at the cathode and sets up a flow of oxygen ions through the electrolyte. When the ions reach the fuel at the anode they oxidize the hydrogen to H2O and the CO to CO2. In doing so they release electrons, and if the anode and cathode are connected to an external circuit, this flow of electrons becomes dc current. This process continues as long as fuel and air are supplied to the cell. To supply the air and fuel an air blower and fuel compressor are usually needed. Other equipment, such as a heat exchanger, start-up and shutdown systems, instrumentation and controls, as ell as safety equipment are also needed for a safe and reliable power system.


3|17

Power and Control Systems

Design and engineering of Electrical Subsea Power and Control Systems

Systems for electrical power distribution, control, communication and integration with topside systems.

Siemens systems are based on highly reliable industrial equipment modified as needed for use in a subsea environment, and also special developed highly reliable components.

Variable speed drivesHV Breaker modules ACHV Breaker modules DCTransformersLV SwitchgearsElectronic control systemsPower line communication equipmentFuse-less motor feeders, and soft starters

<< overview


Power and Control Systems

Remote controlled Single-phase feeders

Communication on Power equipment

VSDs and Soft-starters

Oil-immersed SubseaTransformers

SubseaWell Control Unit

Control Systems

4AUG-04

<< overview


Subsea Transformers

Siemens pressure compensated oil-immersed SubseaTransformers

Designed for operation up to 2000 m water depth

In service since 1998

Special design for operation with VSD and pump motors

Technical dataPower range 50 kVA to 10 MVA

Primary Voltage up to 36 kV

Secondary 400 V to 12 kV

5AUG-04

<< overview


Subsea Transformers

6|17

Tailored to project needs

<< overview


Well Control Unit

A flexible way to enhance control and monitoring of producing wells

7|17

Upgrading of well instrumentation can be

accomplished without retrieval and remedial work

on the original installed control system.

The systems ease of installation is achieved by a

unique high-speed communication on power unit

that enables data communication through the

existing umbilical without interfering with the

original production control system.

<< overview


Well Control Unit

A central controller unit in the SEM controls the subsea field bus network for the new

instruments and executes the various monitoring and control tasks. It also provides

data buffering when fast scans are executed

Robust versus noise, cross talk and attenuation

Can interface to virtually any sensor system

Proven redundant solutions with PROFIBUS

Controller program can be downloaded via power line

8|17

Technical data:Material in canister Duplex or TitaniumCanister atmosphere Nitrogen 1 barPenetrators Glass to metalMaximum baud rate 100 kbpsPower line voltage < 500 V AC, or 1 kV

DC

The modem and interfaces to additional instrumentation is housedin a one bar canister that can be installed virtually anywhere

<< overview


Siemens MV Switchgear module is designed for nonstop operation over the lifetime of an oil field

The switch modules are based upon proven SF6 insulated and vacuum switching technology.

Designed for operation up to 2000 m water depth.

Handles up to 50 MVA powerFlexible configuration of switchesDesigned for more than 25 year of operationConnectors or pigtailsControlled from topside by power line modem or fiber optic line

MV Circuit Breaker Module

10AUG-04

<< overview


MV Circuit Breaker Module

Technical dataCircuit breaker type VacuumSwitch module SF6 filled hermetically sealedRated voltage 24 kVRated bus bar current 1250 ARated feeder current 1250 AShort circuit breaking current, 3 16 / 25 kAShort circuit making current, 40 / 63 kAOperating mechanism Mechanical with spring loading for safe

and reliable operationNo of operations 100.000

200 bar unitWeight Duplex 21 tonOutside diameter 1340 mmLength 4500 mm

11AUG-04

<< overview


Communication on Power

State of the art long distance RF-modem for subsea application

Installs on existing and new power cables

High data rate

High current rate

Applicable for field bus communication

Easy integration to control systems

Robust design MTBF > 20 years

Multi-drop version

Protocol independent

CE compliant

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<< overview


Communication on PowerTechnical data

Voltage < 600 VAC, 1 kVDCCurrent 7.5 A RMS, 40 A peakSupply 15 VDC 300 mAPhysical layer RS 485Data rate 1 00 kbpsDynamic range 120 dBSensitivity - 80 dBmOperating temperature - 10 - +55ºC

13AUG-04

<< overview


Safety Controllers

SIMATIC 400F:TüV certified SIL 1-3 configurations Safety communication (PROFISAFE) Safety - and standard applications might run on same unit, with SIL requirement maintained

Options:Fault tolerant Safety Controller topside, Safety integrated with subsea I/OAutonomous Safety Controller SubseaCommunication by power line or fiber optic lineCan be totally integrated in an Integrated Control and Safety SystemCanister design for operation up to 2000 m water depthSingle or Redundant unitsSIMATIC S7 400F, S7 400HF, S7 300F

13|17

<< overview


Safety Controllers

Subsea HIPPS with Autonomous Safety Controller

Subsea HIPPS with Topside Fault Tolerant Safety Controller

15AUG-04

<< overview


Speed DriveLong Step-outs with Simovert Drives

Single drives with frequency converters topside

Systems for up to 50 miles cable are possible

Even torque with low switching frequency harmonic current at motor

Design confirmation with NETOMAC time domain simulations

Subsea transformer is favorable for long distance

15|17

<< overview


Low -Voltage Switchboard

One atmosphere standard tubular vessel for subsea use of industrial type low voltage control- and switchgears

Designed for operation up to 2000 m water depth

Power levels up to 6300 A

Passive cooling

Industrial type switchgear and control gears

16|17

Standard modules:Control system

Fuse-less motor feeders, and soft starters

Small VSD

DC power supplies

Single phase feeders

Small transformers

Connectors or pigtails

Power supplies

Soft starters

Remote controlled 5 x 10A single phase feeders

Control systems

Small size VSDs<< overview


Low -Voltage Switchboard

Technical data

Material Duplex

Inner pressure 1 atm. Nitrogen

Working pressure, bar 200

Test pressure, bar 400

Inside diameter, mm 800 / 600

Maximum power throughput MW 2 / 1.5

Integrated control system SIMATIC

Tailored to project needs

18AUG-04

Duplex

<< overview

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