siemens.com/energy/subsea
Siemens at OTC 2013
The Siemens Oil & Gas newsletter
Contents
2Editorial
Siemens subsea solutions
3
Ready to work
in 4,000-meter-deep water
4
Subsea Power Grid:
Enabling large-scale subsea
­processing
6
Offshore Drilling:
Excellent reliability on board
7
Offshore Production:
Solutions for highest reliability
and availability
Subsea Power Grid:
Enabling large-scale
subsea processing
The Siemens Subsea Power Grid
Qualification Program is attracting
great ­interest from the global oil and
gas community. As a reliable partner
of the subsea industry, Siemens’ latest development, the Subsea Power
Grid, is currently undergoing the
marinizing and test phase. The Subsea Power Grid is a complete medium
voltage power distribution system
­installed on the seabed, with subsea
transformer, subsea switchgear and
subsea variable-speed drives, as well
as a comprehensive power control
and communication system. This
­creates another milestone on the
path to large-scale seabed processing
facilities that can operate for long
step-outs with the utmost reliability
and withstand extreme pressure and
temperature conditions. Siemens’
confidence in its ability to configure
complex power transmissions to multiple subsea consumers is grounded
in our experience as a technology
leader in land-based power grids with
distribution to various consumers.
» Page 4
Offshore Drilling:
Excellent reliability
on board
Innovative solution packages for
offshore drilling that secure reliable operation and availability
are in high demand. Such solutions are exactly what Siemens
has to offer – based on broad
expertise in electrical, instrumentation, and telecommunication (EIT), rotating equipment,
and water treatment solutions,
as well as years of hands-on experience in the oil and gas business and marine applications.
Siemens’ scope of supply covers
the entire lifecycle of equipment
and assets, thus ensuring longterm reliability and ideal investment protection.
» Page 6
2
The Siemens Oil & Gas newsletter | Siemens at OTC 2013
Editorial
Siemens at OTC 2013
For the next few decades, a large part of the world’s growing demand for
energy will be met by oil and gas. However, the days of easy oil and gas
are over, and more technology per barrel is required if production is to
keep pace with demand in an environmentally sound way. Therefore, oil
and gas producers around the world are focusing their attention on technically demanding onshore reservoirs, on unconventional resources, on deepsea fields, and – next – on fields in arctic regions. This is where installing
facilities is a challenge in itself.
Safety, efficiency, and technical reliability are of prime importance, because
servicing offshore and especially deep-sea facilities requires a lot of effort.
Siemens provides the answers for these challenges based on its leading technological expertise in electrical engineering, power generation, transmission
and distribution, rotating equipment, automation, and water treatment.
For all types of mobile units and jack-up rigs, Siemens delivers proven solution packages that ensure reliable operation and availability – from power
supply (including fault-tolerant systems) through drives for all applications
to automation and management systems. Floating production, storage,
and offloading vessels (FPSOs) call for an integrated design of all topside
solutions as well as highest availability and operational efficiency. We can
provide this, thanks to our comprehensive lifecycle services, our cuttingedge technologies, and our wealth of experience in furnishing offshore
drilling and production facilities.
For subsea applications, Siemens offers products and solutions for power,
distribution, control, processing, and surveillance. Siemens also combines
a high focus on R&D and broad experience with subsea power concept
studies as well as marinization expertise in deep-sea transformers, switchgear, variable-speed drives and subsea power control. All of these are part
of our subsea power grid solution. We began our marinization activities
more than 15 years ago, and subsea technologies have since become an
important business field that we are continually developing.
Siemens is now one of the leading suppliers of complete in-field subsea
distribution systems comprising hydraulics, electrical, and fiber-optic components that can be supplied individually or in complete packages as part
of umbilical termination assemblies/heads. Through acquisitions we have
also significantly increased our ability to marinize our industry-proven
technology and accelerate our delivery of tailored solutions to the subsea
oil and gas market.
Siemens
subsea solutions
Power
■■ Siemens Subsea Power Grid,
­including subsea transformer,
­subsea switchgear, and variablespeed drive (VSD)
■■ High-power AC for subsea
­processing
■■ Pressurized power electronics
■■ Switches for dual ESPs:
­pipeline-heating power and control
Distribution
■■ Full in-field distribution solutions:
electric, hydraulic, and fiber optics
■■ SUTAs (Subsea Umbilical
­Termination Assembly) and
TUTAs (Topside Umbilical
­Termination Assembly)
■■ Connectors
■■ Electrical distribution units
Control
■■ SSIV (Subsea Isolation Valve)
­control systems
■■ Connectors and measurement
­devices
■■ Siemens advanced automation
■■ Greenfield or brownfield solutions
■■ Instrumentation packages
Surveillance
■■ Environmental and reservoir
­monitoring
■■ Sensors
■■ Intelligent asset integrity with
­visualization
We are looking forward to discussing the advantages of our offshore product
and solution portfolio with you at OTC 2013.
Siemens Subsea Power Grid:
Enabling large-scale subsea processing
3
Siemens at OTC 2013 | The Siemens Oil & Gas newsletter
Ready to work in 4,000-meter-deep
water
Siemens’ Tronic DigiTRON connectors
are qualified to operate in seawater
down to 4,000 meters. All of our
DigiTRON connectors and distribution
units provide you with faster lead
times and higher flexibility.
DigiTRON
Siemens Subsea’s DigiTRON
­Evolution: Providing reliability
where you need it most – underwater
With over 110,000 connectors in service
on over 400 projects worldwide, the
DigiTRON range of connectors offers
trusted quality and redefines the subsea connector market. Backward compatibility, refined enhancements, and
increased reliability make Siemens’
DigiTRON+ and DigiTRONe the most
technically advanced low-voltage subsea connectors. DigiTRON+ is an electrical connector and DigiTRONe the
market’s first fully qualified Ethernet
connector with all the benefits of the
DigiTRON product spectrum.
DigiTRON+
Backward-compatible with existing
DigiTRON products
■■ Fully qualified to operate at
4,000 meters depth pressure at full
differential
■■ Certified to last for a 30-year lifespan
■■ PD-free (partial discharge) at
1.73 Uo and 2.50 Uo –
delivers long-term integrity
■■ 1000 mate/de-mates
(750 dry followed by 250 turbid
at 4,000 meters depth pressure)
■■ Fully machined connector body,
which eliminates the need for
­welding
■■ Paddle handle with enhanced
­versatility
■■
DigiTRONe Ethernet connector
Permits higher data rates for realtime
control, enabling fast reactions
to ­real-time subsea situations
■■ Fully qualified to operate at
4,000 meters depth pressure
at full differential
■■ In full compliance with IEEE 802.3
and the SIIS level 3 document,
­including traffic generator and cable
analyzer tests
■■ Harnesses up to 160 meters in
length (including test harness),
­capable of handling 100 Mbps full
duplex data rate at 4,000 meters
depth pressure
■■ Multiple harnesses mated together
to create a total length of up to
160 meters (including test harness),
capable of handling 100 Mbps full
duplex data rate at 4,000 meters
depth pressure
■■ Available for 12-way connectors only
■■
The SpecTRON range:
Medium and High Power Subsea Electrical Connector Systems
SpecTRON 10 connectors are commonly used for Multi-Phase Pumping
(MPP) and Single-Phase Pumping
(SPP) applications. The MPP or SPP is
situated on the seabed and is joined
to the pipeline, boosting flow from
the well to top-side. The pumps increase oil recovery and can be specified for new field developments, or
for existing fields to extend their life.
SpecTRON 10 connectors have a nominal voltage rating of 6/10 (12) kV,
in accordance with the IEC voltage
class system. This makes them suitable for 3-phase system voltages up
to 12 kV (Um).
Maximum current throughput is up
to 520 A, depending on the temperature and pressure inside the pump
motor. This means the connectors
can provide power to pump motors
rated to 9 MW (12,000 hp), or to
5 MW (6,700 hp) for systems requiring Category C operation.
SpecTRON 10 has been qualified to
450 bar test (4,500 meters) for use
in deepwater to 3,000 meters. «
Connectors and ­Sensors: reliability on the seabed
Connectors and sensors are of critical
importance for all kind of subsea
­applications. Our brands Tronic and
Matre deliver a broad spectrum of
r­ eliable products. Matre stands for
a wide range of temperature and
pressure sensors and Tronic for
­electrical connectors that enable
both power transmission and communication on subsea installations
for subsea use. «
4
The Siemens Oil & Gas newsletter | Siemens at OTC 2013
Subsea Power Grid:
Enabling large-scale subsea processing
The Siemens Subsea Power Grid Qualification Program is attracting great
­interest from the global oil and gas
community. As a reliable partner of
the subsea industry, Siemens’ latest
development, the Subsea Power Grid,
is currently undergoing the marinizing
and test phase. The Subsea Power Grid
is a complete medium voltage power
distribution system installed on the
seabed, with subsea transformer, subsea switchgear and subsea variablespeed drives, as well as a comprehensive power control and communication
system. This creates another milestone
on the path to large-scale seabed processing facilities that can operate for
long step-outs with the utmost reliability
and withstand extreme pressure and
temperature conditions. Siemens’ confidence in its ability to configure complex power transmissions to multiple
subsea consumers is grounded in our
experience as a technology leader in
land-based power grids with distribution to various consumers.
Our commitment:
High quality – high reliability
The Siemens Subsea Power Grid is based
on our proven, high-quality industrial
components: transformers, switchgear, and variable-speed drives. These
power components can be installed on
a common base frame distributed at
the seabed – and all components in
the Siemens Subsea Power Grid are
­retrievable.
Full flexibility and reliability
The power electronics and most of the
active components are installed in an
oil-filled and pressure-compensated
environment. This leads to optimal
cooling conditions with 100 % natural
cooling by convection, supporting
­reliability and reducing complexity.
Built-in redundancy provides increased
availability of the total system. Vacuum
circuit breakers with very high MTBF
values are installed in one-atmospheric
SF6-filled pressure vessels.
Monitoring for the best performance
Dedicated power-management and performance monitoring ensures cost savings, extension of the system’s service
life, and reduced maintenance costs.
To guarantee maximum availability,
an integrated condition monitoring
system will monitor the integrity of
the power grid, evaluate changes and
predict f­ ailure situations before leading to ­unexpected shut downs. Operational key data will be stored, enabling
the optimization of operations. «
Key facts about the Siemens Subsea Power Grid’s design
■■
■■
■■
■■
■■
■■
■■
■■
Scalable/flexible
Designed and qualified for
3,000-meter water depth
Oil-filled and pressurized
Natural cooling
No differential pressure on
­penetrations/connectors
Reliable: 30-year design life
Condition monitoring
Universal and redundant
control system
The Siemens Subsea Power Grid components
Subsea switchgear
■■ Modular design with vacuum
­circuit breakers
■■ Fluid-filled base module
■■ Pressure-compensated bus bar
base section
■■ Cascadable design for more
­consumers
■■ Zero differential pressure
at all penetration to seawater
■■
■■
■■
■■
3AC 50/60 Hz
36 kV
2000 A main busbar current
500 A feeder current
5
Siemens at OTC 2013 | The Siemens Oil & Gas newsletter
Variable-speed drive (VSD)
■■ Multicell topology with built-in
cell redundancy
■■ Fluid-filled and pressure-compensated power electronics
■■ 100 % natural cooling
by convection
■■ Designed for 3000 meters water
depth
■■ Condition monitoring
High-power changeover switch (HPCS)
Siemens’ HPCS is specially designed
sures that the power switch remains
for connecting two redundant subin the same position if hydraulic
sea ESPs to one common power um- pressure is lost (“fail as-is”).
bilical and power supply. The remotecontrolled unit features a simple and
rugged design that ­allows for easy
adaptation to ­diverse subsea applications. Switching can only occur
in power-off mode with no voltage
on the input cable. The hydraulic/
mechanical switching ­system en-
Step-down transformer
The design can be used on subsea
distribution transformers in a wide
power range. The trans­former’s
electrical design is based on traditional onshore distribution transformers, but with an enhanced
­insulation system with improved
­efficiency. All materials have been
tested for pressure and fluid compatibility in an extensive qualifi­
cation program. In addition, the
­design has been verified with a full
load heat run test in shallow water.
The subsea transformer has an
­integrated sensor and monitoring
system that can be seamlessly integrated in the Siemens subsea power
control system. This provides the
operator with a continuous display
of the status of transformer integrity
and the ability to optimize operations for enhanced safety.
■■
■■
■■
■■
■■
■■
■■
■■
■■
■■
■■
■■
Pressure compensated
Hybrid insulation
Robust enclosure design
with ­optimized natural cooling
properties
Biodegradable and environ­
mentally friendly Midel 7131®
fluid filling
Flexible interfaces
(dry- or wet-mate connections)
Advanced condition monitoring
Also suitable as step-down
­transformer for subsea boosting
Qualified for 3,000 meter
water depth
3 AC 50/60 Hz
Input voltage: 36 to 145 kV
Output voltage: 6 to 36 kV
Power range: 1 to 100 MVA
6
The Siemens Oil & Gas newsletter | Siemens at OTC 2013
Offshore Drilling:
Excellent reliability on board
Innovative solution packages for
­offshore drilling that secure reliable
operation and availability are in high
demand. Such solutions are exactly
what Siemens has to offer – based on
broad expertise in electrical, instrumentation, and telecommunication (EIT),
rotating equipment, and water treatment solutions, as well as years of
hands-on experience in the oil and
gas business and marine applications.
Siemens’ scope of supply covers the
entire lifecycle of equipment and assets,
thus ensuring long-term reliability and
ideal investment protection. Moreover,
thanks to long-standing business partnerships with leading shipyards, naval
architects, and drilling service operators, Siemens understands the needs
and demands of the markets – and how
to deliver exact solutions.
DP3 closed ring solution
Power management is of vital importance for dynamic positioning. Failures
in the power system components or
external faults should be identified
when they occur and be isolated from
the rest of the system. A system operating in DP3 mode in closed ring configuration does this. And in case of
malfunction of the primary safeguarding devices, a backup system will be put
in operation. Siemens has worked with
drilling majors and the classification
society to develop solutions operating
in DP3 mode with one fully integrated
power system.
Our solution will additionally result in
a reduction of fuel demand (about 5 %),
operating with only two engines online
and working on higher power utilization
to achieve 17 to 23 percent fewer operating hours on engines, resulting in
several advantages:
■■ Lower emissions
■■ Reduced contamination
of the engines
■■ Diesel engines running
at a higher load level
■■ Improved selectivity
in the main power system
■■ Improvements for the maintenance
program of the vessel
BlueDrive drilling rig power system
For drilling jack-up rigs our new topology for the electrical system connects
the generators directly to the DC bus
via rectifier. There is no need for synchronization between generators and
it allows load sharing. This new power
solution can be combined with existing
drilling and jacking drives and various
power sources. It results in advantages
in construction, operation, and maintenance, including these effects:
■■ Reduced weight
(fewer switch boards and
­transformers) and size
■■ Ultra-fast engine startup
■■ Ultra-fast blackout prevention
and reduced recovery time
■■ Lower noise for the crew
■■ Reduced fuel consumption
■■ Lower wear and tear
BlueDrive jacking drives
Siemens has developed an electrical
variable-speed drive jacking system
that can significantly speed up the
jacking process. Its unique diagnostic
systems give precise data feedback
during operation, which allows optimal
speed and torque control as well as
synchronization. This helps reduce the
possibility of mechanical overstress
and wear of the legs, and makes the
need for system-overrating a thing of
the past. The new Siemens BlueDrive
jacking drives thus make possible
­higher efficiency, time savings, costoptimization, and improved investment
protection. What is more, the new
BlueDrive jacking drives also help save
energy, as less power and less cooling
capacity are required.
BlueDrive thruster drives
Siemens has introduced an AC drive
system specially designed for propulsion applications, which ensures the
safe and reliable operation of the vessel
under all conditions. Particular effort
has been made to ensure reliable handling of both the dynamics within the
power supply system and the various
load conditions at sea. The BlueDrive
system comes with a fast-responding
blackout prevention system, and is
­capable of pre-charging. It can, therefore, be regarded as a non-heavy consumer. Its compact converters minimize
footprint, and thereby costs, and the
system’s separate transformers ensure
the utmost flexibility in the choice of
mounting locations, thus saving up to
30 percent in space and reducing power
loss in the electrical room by as much
as 50 percent. «
7
Siemens at OTC 2013 | The Siemens Oil & Gas newsletter
Offshore Production: Solutions for
highest reliability and availability
A good portion of the global oil and
gas reserves are to be found offshore.
This is the field of fixed platforms, semisubmersibles and floating production,
storage, and offloading vessels (FPSOs).
The latter are becoming increasingly
important with oil and gas production
penetrating deep-sea regions and with
the increasing economic significance
of smaller reservoirs.
Achieving maximized availability and
operating efficiency are central challenges for all units on board. Spacesaving design for all topside solutions
in suitable modules is imperative.
Siemens has extensive experience in
equipping offshore production facilities:
■■ from the complete power supply
system, via
■■ the drives, compressors, and integrated process solutions for gas and
water, through to
■■ integrated automation and control
■■ including important marine systems.
Siemens is a world technology leader in
these fields, whatever concrete application is required. With our competence,
our technologies, and our services we
provide reliable, cost-effective solutions.
Offshore production solutions from
Siemens are prepared to meet tough
challenges. We follow a clear concept
to best fulfill the specific needs of construction and operation through:
■■ reliable technology offering
­maximized performance
■■ integrated solutions and turnkey
packages predesigned, preengineered, pretested, adaptable to
the vessel’s specific challenges
The basis for all this is cutting-edge
technological competence and qualified services over the entire lifecycle.
We provide complete OEM solutions,
enable CAPEX and OPEX savings, provide reliability in project execution and
system operations. This entails:
■■ Reduced number of interfaces and
reduced execution time and cost risk
■■ Integration by Siemens as OEM
means complete system performance and troubleshooting within
OEM responsibility
■■
■■
Uptime guarantee can be considered
on project specific risk/reward basis
for complete Siemens scope
Entire scope from one OEM: uniformity across hull and topside reduces
OPEX, opportunity to reduce CAPEX
through knowledge of own equipment and design optimization
Siemens offers the broadest portfolio
for the topside, including major parts
of the marine solutions, and a specific
offshore project skill set required to
understand codes and specifications
and to successfully engineer, commission, and provide follow-up support.
Siemens’ wealth of experience makes
it possible to optimally match these
­offerings to the respective platform or
vessel design and the specific requirements. Our specialized engineering
departments design the solution packages in 3-D and configure the modules,
applying the required American, British,
Norwegian, or European code standards. The core components are produced at in-house manufacturing plants.
Siemens is an all-around partner for
offshore production plant constructors
and operators over the entire lifecycle:
■■ from feasibility studies and the
­clarification of financing issues,
via engineering,
■■ construction of the requisite
­components, and
■■ commissioning of the respective
system packages, through to
■■ comprehensive services for reliable
operation with maximized per­
formance.
As a proven technology partner for
new-build projects or the conversion
of a tanker into an FPSO, we demonstrate our capabilities in offshore applications day in and day out. Siemens
offers a complete one-stop solution
from concept to delivery of the modules. The result: turnkey modules that
can be quickly installed on the platform
or vessel, anchored in place and put
into operation.
Integrated Electrical Systems
As one of the technology leaders in
power generation, power transmission,
and power distribution as well as electrical drives, Siemens is the right partner for topside power supply. Our Main
Electrical Vendor Concept optimizes the
cost/benefit ratio of your plant’s power
supply while minimizing risk, based on
a carefully coordinated portfolio of
high-quality products and services.
As part of the concept, the customer
and Siemens as a strategic partner
­define the best possible solution including future maintenance and operational
aspects.
Power Generation
Siemens offers a broad portfolio of gas
turbines and steam turbines for challenging offshore environments, meeting the strictest safety and reliability
requirements. Our compact lightweight
industrial gas turbines, ranging from
5 to 50 MW, are perfectly suited for
­demanding topsides applications, suitable for deck mounting, in-hull installations or as multiple units in single-lift
modules. They offer high tolerance to
fuels containing hydrogen sulfide, and
can run on a wide range of gas fuels,
from rich to lean, while the SGT-500
can also run on HFO or heavy crude
oil. Dual fuel systems come as a standard option on all our gas turbines,
The Siemens Oil & Gas newsletter | Water treatment
­ llowing for operation on liquid fuel
a
at initial start-up and other occasions
when gas fuel is not available. Furthermore, all engines can be equipped with
our robust, reliable Dry Low Emissions
combustion system, with nominal
emissions below 25 ppm NOx on gas
fuel, and the ability to operate on rich,
lean and variable gas fuels. And with
long times between overhauls and core
exchange capability, high availability
and hence maximum uptime is ensured.
■■
■■
■■
■■
■■
■■
Power Distribution
With a single power source on board
a rig or vessel, power quality becomes
an essential issue for the reliability and
safety of all operations. In Siemens’
comprehensive power distribution solutions, all systems, products, and components are modularized, standardized,
and fully assembled in E-house solutions pretested onshore. This includes
MV gas- and air-insulated switchgear,
LV switchgear, power and distribution
transformers, the cable connections and
bus ducts, the motor control center, and
all protection and energy automation.
Thanks to this approach, installation
and commissioning times can be kept
to a minimum.
Siemens offers a complete range of
products, systems, and services for
produced water treatment and water
treatment for enhanced oil recovery.
For offshore production requirements,
this includes solutions for raw water,
produced water, cleaning of seawater,
and solutions for injection of seawater
for pressure support and enhanced
­recovery support in the reservoir. Our
produced water treatment/reinjection
systems and raw/seawater injection
­solutions can be supported by feasi­
bility studies, optionally combined
with testing in the laboratory or a pilot
project. Treatment options include solids separation (hydrocyclones), primary,
secondary and tertiary produced water
separation (hydrocyclones, flotation
systems, walnut shell filters), and advanced treatment using membranes.
Gas compression
Automation and control systems
© Siemens AG 2013
www.siemens.com
For more information,
please contact:
Siemens AS
Oil & Gas Solutions
Østre Aker vei 90
0596 Oslo, Norway
E-mail: post.no@siemens.com
www.siemens.com/oil-gas
Process automation
Information management
Power management
Marine systems
Safety Instrumented Systems (SIS)
incl. ESD and F&G
Telecommunications
To ensure full interoperability with the
business level and transparency for fast
decision making, Siemens automation
solutions seamlessly integrate all operations and all levels from SIMATIC PCS 7
automation at the field level to MES
and ERP. This results in well-organized
processes and real-time enterprise,
highest plant availability and safety,
and increased production at optimized
operating efficiency.
Automation and control are essential for
reliable operation. As a global leader
in these fields, Siemens can offer products and solutions to cover all main
FPSO applications, including:
Published by:
Siemens AG, Energy Sector,
Oil & Gas Division
Siemens at OTC 2013
After the gas-oil separation, associated
gas can be compressed on an FPSO for
transportation onshore. Or it can be
used to fire the gas turbines and for
­reinjection purposes. However, both
gas lift and gas reinjection require a
compressor to provide the appropriate
pressure. One example from Siemens’
broad lineup of field-proven electric and
mechanical drive compressors optimized
for FPSO requirements is the STV-SV
barrel-type compressor, especially suitable due to its small space requirements.
Like all other Siemens compressors, it
is complemented with corresponding
instrumentation and controls. «
All rights reserved.
Trademarks mentioned in this document
are the property of Siemens AG, its affiliates,
or their respective owners.
Subject to change without prior notice.
The information in this document contains general
descriptions of the technical options available, which
may not apply in all cases. The required technical
options should therefore be specified in the contract.
TH 104-130096
8