Subsea solutions
Enabling Subsea Processing by
Connecting Innovation with Experience
Products and systems for deepwater oil and gas developments
Answers for energy.
Enhancing oil and gas
recovery in challenging
environments
The future of oil and gas recovery involves accessing increasingly complex reserves.
Most importantly, our unique subsea offering is backed by a tireless commitment and
It involves cost-efficient subsea processing developments, especially for long step-outs,
dedication to our customers and to the industry as a whole. That is reflected in the
marginal and dispersed fields frequently located in deep and ultra-deep waters. And it
quality of our subsea solutions and in the innovation, excellence and concern for safety
involves advanced supporting power supply and distribution technology.
and sustainability that has gone into their development. And it is also documented by
our track record. Case in point: our Tronic products. As the most widely sold connectors
That‘s where Siemens comes in. As the technology leader for land-based power
in the industry, their reliability speaks for itself.
generation, transmission, distribution, drives and automation, we supply complete in-field
subsea distribution systems, including the solutions experience, expertise and capabilities
Enabling subsea installations – even in the most challenging environments.
for configuring complex power transmission to multiple subsea consumers.
Subsea Products
Subsea Systems
Lifecycle Management
Enhancing subsea developments
Enabling large-scale subsea processing
Fully backing our subsea commitments
Our subsea products and systems portfolio covers a broad spectrum of applications. Going
far beyond power and distribution, it comprises everything from pioneering technologies
for subsea control and surveillance to exemplary service and support based on extensive
marinization expertise. As a result, we are able to provide answers over the entire life
of the field.
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Subsea products
Extending your
recovery scope
Siemens offers subsea products for customized solutions
with a portfolio of market-leading brands such as Tronic,
Matre and Bennex. The reliable Tronic line of DigiTRON,
SpecTRON, FoeTRON and ElecTRON products provides
electrical and fiber-optic connector systems for subsea power
and communications. Our Matre products, in particular,
the wellhead pressure sensors (WEPS), pressure temperature
(PT) sensors and differential pressure (DP) transducers,
are renowned for delivering optimum performance and
reliability. The Siemens subsea offering also includes
high-performance Bennex equipment for power solutions,
fiber-optic and seismic applications.
Recognizing the challenges facing the global oil and gas industry for
deepwater prospects, we have initiated an extensive qualification program.
We continuously review market requirements to improve our product range
and to meet new and evolving industry demands. Our aim is to keep developing
high-integrity products and solutions to aid and enhance hydrocarbon recovery.
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Products for
customized solutions
Subsea distribution:
Enhancing subsea developments
With a solutions lineup that comprises subsea
distribution units, a high-power changeover switch as
well as pressure-compensated electrical, fiber-optic and
hydraulic connectors and jumpers, Siemens has the
capabilities needed for safe and reliable subsea power
and signal distribution. Our Anguila jumpers, cable
terminations and Anguila Cobra Head – which terminates
hydraulic and electrical umbilicals to various subsea
structures – continue to set the industry standard for
subsea oil and gas activities.
Making the right connection
Our advanced and highly reliable Tronic
connector systems have been used for
subsea oil and gas applications since
1979. In 1994, we installed the world’s
first subsea electrical submersible pump
(ESP) system together with Petrobras,
complete with wet-mate connectors to
power a downhole pump. Since then,
ESPs for subsea wells have become a
widely accepted solution.
Approximately 150,000 connectors in service
in over 500 projects worldwide are testament
to the proven and trusted quality of our DigiTRON
(DigiTRON+ and DigiTRONe), SpecTRON, ElecTRON
and FoeTRON range of subsea connectors. In fact,
our Tronic connectors define subsea performance
and reliability, combining cutting-edge technology
and advanced testing results.
Monitoring your operational
conditions
Our Matre sensors and transmitters have been delivering
excellent performance with a high level of dependability
for over 20 years. In addition to our renowned wellhead
pressure and temperature sensors, available both as single
and dual units, we also offer a wide assortment of proven
and tested instruments for monitoring the conditions of
subsea operations.
Matre subsea sensors were first used in the TOGI (Troll-Oseberg
Gas Injection) project in 1988, performing superbly throughout the
23-year lifespan of the subsea installation. Our high-quality sensors
and transmitters, which also include various sensing products for
numerous applications, ensure reliable measurements throughout
the lifetime of a subsea field.
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Subsea systems
Enabling large-scale
subsea processing
Dependable power supply and distribution is vital for subsea
production facilities. Siemens has the know-how and ability
to configure complex power transmissions to multiple subsea
functions. We offer a sizeable assortment of specialized
systems for reliably supplying electricity to numerous
consumers across the seabed and downhole ESPs from an
onshore power plant or platform.
As operators are faced with ever stricter health, safety, security and
environmental (HSSE) guidelines, control and surveillance play an increasingly
important role for subsea oil and gas processing. Reliably monitoring well
performance is crucial for ensuring maximum availability and oil recovery –
as well as for cost savings, maintenance reduction and system life extension.
Siemens has a variety of subsea systems and solutions for condition, performance
and environmental monitoring as well as operation control and communication,
including direct electric heating (DEH) power systems designed to prevent hydrate
formation in pipelines.
With our long-standing expertise in power, distribution and control technology,
we are able to provide customers with smart systems specifically tailored to their
subsea applications and demands. We can assist you with everything from the
studies, design, procurement and assembly to the testing and installation.
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Powering installations
on the seabed –
down to 3,000 meters and more
With the Siemens Subsea Power Grid, a supply and distribution system, we are combining
Subsea switchgear
our high R&D focus and broad subsea power concept experience with our extensive
The subsea switchgear has a modular design. Its main bus
bars, wet-mate connectors and measuring transformers
are housed in the fluid-filled and pressurized base module.
marinization expertise. Currently undergoing the detail design and test phase, it
incorporates proven high-quality Siemens industrial components, including subsea
transformers, switchgear and variable-speed drives. All power components can be installed
on a common structure located on the seabed. As such, the Siemens Subsea Power Grid
marks another milestone in powering large-scale seabed processing facilities.
Subsea transformers
The step-down transformer is the main interface
between the subsea transmission line and the power
distribution. As a hermetically sealed, fluid-filled and
pressure-compensated unit transformer for variablespeed drive of pump motors, it enables step down
to a wide range of consumers as well as longer
step-outs. Its natural convection cooling
reduces maintenance requirements.
Variable-speed drives
The variable-speed drive (VSD) features a fault-tolerant
multi-cell topology with built-in component redundancy.
Designed specifically for sea floor operation, its fluid-filled
enclosure and all power electronics can be exposed to full
pressure, thereby reducing maintenance requirements.
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Electrical heating
for flowline control
and installation monitoring
Surveillance
and control
Our broad subsea surveillance and controls
portfolio covers everything from well
performance and gas leak detection to
reservoir, integrated environmental and
condition monitoring – including seabed
seismic and oceanology applications.
Operators face several challenges – the need to enhance recovery, follow strict regulations
as well as comply with health, safety, security and environmental (HSSE) requirements.
There is an ever greater demand for control and surveillance of assets and the environment
to ensure that subsea oil and gas operations are successful. With our extensive subsea
monitoring experience, our topside process control as well as industrial IT and database
systems, we can offer superb assistance in this area.
Direct electric heating
(DEH) power systems
Deepwater reservoirs induce hydrate
and wax formation, which can cause
flow assurance challenges such as
reduced capacity or even flowline
and pipeline blockage.
Our direct electric heating (DEH)
power systems are designed to
prevent wax and hydrate formation
and secure flow assurance. They allow
for OPEX savings through reduced
chemical injection and dumping into
the sea, in addition to low CAPEX and
maintenance costs while also avoiding
depressurization during shutdown.
What’s more, they can be retrofitted
onto operating pipes. Combined with
our customized power design and
components, they help to further increase system reliability and lifetime
performance.
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Permanent reservoir monitoring (PRM)
PRM is a key technology for improving reservoir
imaging. Siemens designs, builds and delivers PRM
systems that can be easily connected to existing subsea
installations and expanded. Our state-of-the-art digital
sensing technology and associated systems ensure
reliable monitoring of operations and enable increased
oil recovery while preventing harm to the environment.
Subsea hydraulic power unit (SHPU)
Combining our electrical and hydraulic system expertise,
we deliver hydraulic power units for permanent subsea
installation. As an alternative to umbilical replacement,
the SHPU can be operated in several ways – for example,
as a repair unit for subsea hydraulic supply failures
such as leakage or blockage that may result in a well
production stop. Or as a building block in green field
hydraulic infrastructure developments – a particularly
viable alternative for long step-outs. With its low peak
power consumption, the SHPU helps to maximize the
utilization of the subsea electrical infrastructure and
standard interfaces for universal application.
Subsea control unit (SCU)
Large-scale subsea oil and gas processing requires
sophisticated instrumentation that ensures failsafe
communication with operational equipment. Our
subsea control units allow you to add a wide variety
of instruments to your fields that you can influence
and adjust. They can be connected to cameras, sand
detectors, multiphase meters, hydrocarbon leak
detectors, pressure and temperature sensors, electrical
actuators and directional control valves.
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Lifecycle management
Fully backing our
subsea commitments
Subsea oil and gas recovery comes with many challenges.
In order to adequately meet steadily growing customer
demands, to optimize operational efficiency, extend field life
and increase output, Siemens fully backs its commitments
with a variety of service support offers – at every phase of
the development.
Lifecycle management from Siemens comprises a range of
post-sales support services. Our dedicated team of trained and
qualified field service experts around the world fully back our
products and systems – with world-class support, both onshore
and offshore, rapid response and strategic life of field solutions.
In addition to installation, inspection, maintenance, spare parts, refurbishment,
modification, technical and repair services, the comprehensive Siemens subsea
service offerings include a variety of agreements that can be individually tailored
to specific customer requirements. We also provide onsite trainings as well
as partial and complete project management. In addition, we possess a large
equipment pool for offshore exploration and ROV/diving.
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Published by and copyright © 2014:
Siemens AG
Energy Sector
Freyeslebenstr. 1
91058 Erlangen, Germany
Siemens AG
Energy Sector
Power Generation Division
Oil & Gas Solutions
Wolfgang-Reuter-Platz
47053 Duisburg, Germany
siemens.com/energy/subsea
For more information, please contact:
Siemens AS
Østre Aker vei 88
0596 Oslo, Norway
Phone: +47 22 63 30 00
subsea.energy@siemens.com
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Power Generation Division
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Printed in Germany
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Subject to change without prior notice. The information
in this document contains general descriptions of the
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be specified in the contract.
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property of Siemens AG, its affiliates, or their
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