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Emerson Deepwater Offshore Solutions
Proven Fisher® technology to mitigate risks and meet production targets
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2 | Offshore Solutions
HIGH PRESSURE COMPRESSION SYSTEM
LOW PRESSURE COMPRESSION SYSTEM
“Unplanned maintenance or shutdowns put my
personnel and process at risk. High operating costs
and declining production prevent me from reaching
the target return on our production assets.”
As offshore exploration activities continue to increase and drilling deepens, the risks to your assets
compound. If your equipment isn’t running at its best in remote and extreme environments, you put
your personnel at risk. Common process upsets caused by inefficient control valves can negatively
impact your production uptime, increasing operational costs and the chances of a safety incident.
What if you could...
+ MAXIMIZE PRODUCTION with proven technology, durable equipment, and application expertise? pages 4-7
+ REDUCE OPERATIONAL COSTS and risks to your personnel with proven-reliable technology? pages 8-10
+ INCREASE UPTIME by having access to reliable control valve service and support? page 11
Mitigate risks and meet production targets with proven Fisher® technology for your critical valve applications:
GAS/WATER
INJECTION
TO WELL
FROM WELL
GAS SCRUBBERS
AND COMPRESSION
WELL
HEAD
TEST
SEPARATOR
SLUG
CATCHER
2
1
HIGH PRESSURE
SEPARATOR
1
1
1
GAS TO
FLARE
LOW PRESSURE
SEPARATOR
2
GAS TO
FLARE
LOW PRESSURE
SEPARATION
SYSTEM
OVERBOARD
OR INJECTION
6/7
1
5
MAIN
PUMP
WATER INJECTION SYSTEM
FLOATATION
CELL
FREE
WATER
KNOCKOUT
HIGH PRESSURE
SEPARATION SYSTEM
PIPELINE
1
BULK
TREATER
MAIN
PUMP
3
DRY OIL
TANK
OIL TREATMENT SYSTEM
4
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1 2 3 4 5
Offshore Solutions | 3
Level Control Valve
► more on pages 6 & 7
Gas to Flare Valve
► more on page 4
Oil Pump
Recirculation Valve
Oil Pump Discharge Valve Water Injection Pump
6 7 8 9 10
Water Injection Valve
► more on page 5
HIGH PRESSURE COMPRESSION SYSTEM
Water Overboard
Valve
Compressor Antisurge Valve
► more on page 9
Gas Injection Valve
► more on page 6
8 8 8 8
Recirculation Valve
► more on page 5
Glycol Contactor Level
Control Valve
► more on page 6
LOW PRESSURE COMPRESSION SYSTEM
8
INPUT FROM
LOW PRESSURE
DISCHARGE
SUCTION SCRUBBER
9
FUEL GAS SYSTEM
8
FUEL
GAS
SYSTEM
COMPRESSION
DISCHARGE
SCRUBBER
GAS DEHYDRATION
SYSTEM
10
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4 | Offshore Solutions
MAXIMIZE PRODUCTION
A lot goes into the sizing and selection of a control valve.
A procedure based on sound engineering principles,
coupled with real-world knowledge of your process,
helps determine the valve selections that are most
appropriate for your production requirements. Total
comprehension of this procedure, your process, and
the engineered specifications of your applications are
critical to helping you reach your production targets.
By partnering with Emerson, you can work alongside
a team of application experts who are dedicated
to solving your toughest offshore challenges. Our
engineers carry out the sizing and selection of your
control valve equipment with precision for detail.
This helps you reach your production targets and gain
confidence in your process.
Fisher HP control valve with Whisper trim™
(often used in gas-to-flare applications)
Reduce Noise and Improve Output
Gas-to-flare systems are an integral part of many
deepwater offshore assets. They safeguard against the
overpressure of critical equipment and are vital to the
start-up, shut-down, and short-duration upsets of your
offshore production platform.
Like any critical application, the gas-to-flare application
comes with its challenges. Significant pressure drops
and high flow rates across the valve are the primary
concerns. If these issues are not taken into account
during the valve sizing and selection process, excessive
noise levels and even damaging vibration can occur,
resulting in production interruptions, safety incidents,
or environmental fines.
Emerson engineers use aerodynamic noise modeling
and prediction technology to account for independent
trim and valve body noise, leaving you with a
customized valve solution that best fits your large
pressure drop applications. This comprehensive
approach incorporates field-proven, noise-attenuating
valve trims, like Fisher Whisper III trim, to reduce noise
and prevent damaging vibration. When you’re able
to control noise effectively, you can keep production
running smoothly and safely.
Laser shadowgraphs show jet independence from three
properly spaced holes (left). The same three holes spaced too
closely (right) show jet interaction, which leads to additional
noise. Being able to predict and control jet interaction can
reduce the noise produced by up to 40 dBA.
A top-down look at flow through Fisher WhisperFlo™ trim (left) using
computational fluid dynamics illustrates the independence of fluid
jets as they exit the cage. In contrast, the exit jets of some tortuous
path trims (right) impinge upon one another in pairs, creating an
additional noise source.
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Combat Corrosion, Mitigate Erosion, and Increase Recovery
Offshore Solutions | 5
Water injection systems can be one of the most difficult applications on your
offshore asset. Because they serve to significantly increase extraction, these
systems are essential to meeting production targets. High-pressure water
is injected into the well to dispose of water recovered from processing or
to help facilitate product flow by maintaining reservoir pressure. While sea
water is often the most convenient source for this system, it also presents its
own unique set of challenges unlike those that exist onshore.
The pressures at the bottom of the ocean and down the wellbore are much
greater than those on the surface. However, the inherently corrosive nature
of seawater could be the most difficult characteristic to combat. Its alkalinity,
or pH, can cause a chemical reaction that quickly degrades your control valve
equipment. Sand, microorganisms, and other particulates, combined with
the high pressure drops can shorten control valve life by plugging the cage
and causing material erosion or corrosion of the plug, cage, and seat. Damage
to the control valve body may also occur. These issues compromise your
production efforts and may shutdown your process.
With a variety of valve materials suited for corrosion resistance, Emerson
engineers can help you select a valve construction that will endure even
the harshest conditions. Designed specifically for dirty service applications,
Fisher dirty service trim technologies allow particulate to pass, while
resisting or eliminating cavitation or process particulate damage. The
use of corrosion-resistant alloys, such as super duplex steel in trim
components, can help reduce chloride pitting and stress corrosion cracking
to promote longer service life and tighter shutoff.
MATERIALS
MATTER.
We’ve got you
covered:
Tungsten Carbide
Super Duplex
Duplex
Ceramic
Ferrallium
Inconel
Aluminum Bronze
Monel
254 SMO
Superaustenitic
WCC
316sst
440C
Scan this QR code to learn
more about solutions for
cavitation control.
PROVEN RESULTS
APPLICATION: The water injection system of an offshore platform in the Gulf of Mexico
CHALLENGE : Subjected to pressure drops as high as 10,000 psi (689.5 bar) and abrasive sea water,
valves in this application are prone to clogging, severe cavitation damage, and corrosion.
Valve failures were costing the facility 3000 barrels in lost production per day.
SOLUTION: Using Fisher HP valves fitted with Cavitrol
opposed to containment—the platform was able to increase runtime of the waterflood
system by nearly 80%. With Fisher Lifecycle Services’ Quick Ship delivery, the application was
restarted 15 weeks sooner than planned, saving the platform more than $300,000 USD per day.
™
trim—designed to eliminate cavitation, as
Titanium
Fisher forged-block
HP control valve with
Cavitrol IV trim
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6 | Offshore Solutions
MAXIMIZE PRODUCTION
Full Range Equipment for Variable Pressures
Like water injection, gas lift and gas injection are methods used
to increase production as the well ages. In this application, gas
injection may also be used as a way to dispose of unwanted
gas production. In either case, the valves are subjected to
high pressures and large pressure drops and must be able to
maintain sufficient uptime. With little opportunity to change
out the valve—not to mention the high cost of doing so—proper
engineering and configuration up front is critical.
Emerson engineers understand that the success of the gas lift
and gas injection methods are directly tied to the initial design of
the control valve. When you require thorough engineering and
high quality standard design, Fisher high pressure control valves
(HP series) provide a thicker valve body wall for extra protection
against erosion and corrosion.
Fisher valves are factory-tested beyond
standard requirements for tight shutoff
and endurance to extend service life and
ensure you achieve optimum production.
Scan the QR code to learn more about
Fisher solutions for noise abatement.
Identifying application challenges during the engineering
of a valve is crucial to ensuring valve reliability and more
importantly, ensuring the safety of your personnel.
Optimized Level Control
Carefully managing the levels of oil, water, and
glycol is critical to ensuring you get the highest
quality product. Level control valves and
controllers are integral in separating water, gas,
and other constituents from the oil before it is
shipped from the offshore production asset.
The erosive qualities associated with deep
water extraction, like sand and salt particulates,
put these valves under a lot of stress. Flashing,
erosion, and high vibration only add to what is
already a critical application.
With these issues in mind, Emerson has a
variety of Fisher valves, trims, and materials
to handle the challenging level control
applications found on your offshore asset.
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Dependable Performance Across the Board
Emerson uses innovative engineering practices to give you highperforming, reliable solutions specifically for precise level control.
™
The rugged Fisher easy-e
extensive flow testing and evaluation, yielding a robust control
valve that is the industry standard for dependability and longevity.
And, with interchangeable trim parts, the easy-e valve allows you
to minimize your valve investment while maximizing your control
options. You’ll quickly understand why over a million units have been
installed globally in a broad range of applications.
Also available, the Fisher Vee-Ball
V-notch ball provides positive shearing action and a nearly equal
percentage flow characteristic. It is essential to the accuracy and
controllability of your system and provides non-clogging, high
capacity flow control of your gas, steam, and clean or dirty fluids.
Extensive flow loop testing has demonstrated the Vee-Ball valve’s low
friction performance advantage in controlling process variability.
Both the easy-e valve and the Vee-Ball valve can be coupled with a
full range of Fisher actuators and FIELDVUE
to yield compact, easy-to-handle control valve assemblies. All
components are engineered to work together to deliver dynamic
performance and reliability.
sliding-stem control valve has undergone
™
rotary control valve with its
™
digital valve controllers
Offshore Solutions | 7
EXCEEDING EXPECTATIONS
Every Fisher control valve design
received Lloyd’s Register’s Marine Type
Approval for process applications within
the offshore oil and gas production
industry, including those high integrity
control valve applications that could
potentially affect the safe operation of
the offshore installation. In fact, all Fisher
products have been thoroughly tested
per Lloyd’s Register requirements to
confirm compliance with marine industry
standards. All product designs have been
certified to meet rigorous offshore codes
and standards.
Fisher control valve assemblies are subjected to
in-line dynamic performance testing to evaluate
their ability to reduce process variability.
In addition to Marine Type Approval,
Emerson facilities in all world areas have
been approved to manufacture products
certified to Lloyd’s Register Marine rules.
And one more thing—no other control valve
supplier in the world can say the same.
Scan the code to learn more about what
the Lloyd’s approval could mean for
maximizing your production efforts.
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8 |Offshore Solutions
REDUCE OPERATIONAL COSTS
For years, reactive and routine maintenance has been the
standard approach to valve and instrument care in the oil &
gas industry. “Run-to-fail” often seemed like the most costeffective option. A traditional alternative to the run-to-fail
strategy is schedule-based maintenance where inspections and
refurbishments are performed to a schedule—whether they are
necessary or not. As offshore production grows and technology
expectations increase, it’s evident that reactive and schedulebased maintenance is not a sustainable strategy.
By implementing field-proven control valves and instruments
from the very start of your planning and designing process,
you can optimize your maintenance program, streamline your
process, improve your performance, and protect your personnel.
Using a valve signature series test, you can easily track
the operating health of your control valve without
removing it from the line.
The Control Valve You Choose Matters
When you buy Fisher control valves, you get the application expertise that comes from
more than a century of oil & gas production experience. Plus you benefit from millions of
dollars of research invested in reliability-centric testing of Fisher control valve technologies.
Fisher product specifications are, in many cases, more stringent than the industry accepted
standards set by regulatory agencies. Our attention to and evaluation of product quality is
necessary to bring you Fisher technologies of the highest reliability and performance. Fisher
technology development capabilities extend worldwide with engineers and labs in North
America, Europe, and Asia.
Using Fisher technology can help you achieve efficient, productive, and reliable plant
operation. Want to see for yourself? Visit the Emerson Innovation Center for Fisher
Technology in Marshalltown, Iowa, USA. To schedule a visit, please contact your local
Emerson sales office.
Scan the code to watch how
Fisher products are rigorously
tested to meet safety and
performance standards.
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By moving the compressor’s
operating point closer to
the surge limit line, you can
operate more efficiently.
Offshore Solutions | 9
Safely Operate Closer to Compressor Limits
Compressors can be the most critical and expensive
components on your offshore asset. To minimize unplanned
downtime, equipment damage, and risks to personnel
safety, it’s critical to have a system and valve that recognize
an impending surge condition and take immediate action to
prevent it.
Typical methods for maintaining surge control include either
a blow-off to atmosphere or recirculation from the outlet to
the inlet of the compressor. The anti-surge control strategy is
tightly integrated with the compressor load control strategy.
The control strategy requires not only a fast-acting controller,
but a fast-acting valve with properly selected noise-attenuating
and vibration-reducing trim to release or recirculate the flow.
Fisher optimized digital valves (ODV) and the predictive
diagnostic capability of the FIELDVUE digital valve controller
make it easier for operators to protect the compressor and
ensure valves are working properly. Using the FIELDVUE
digital valve controller, you can remotely check for valve
packing friction, air leaks, stuck valves, and even analyze valve
health while in-service or offline. With an antisurge valve that
moves with greater speed, precision, and control, you can
push the compressor’s operating point closer to the surge
limit—increasing efficiency, while avoiding process upsets
and compressor failure. Fisher control valves and instruments
exhibit industry-leading dynamic performance.
The FIELDVUE digital valve controller offers
antisurge-specific tuning capability that is an
integral part of the Fisher ODV package.
Scan the code to learn more about the
FIELDVUE DVC6200 digital valve controller
with stainless steel housing to handle
abrasive offshore environments.
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10 | Offshore Solutions
REDUCE OPERATIONAL COSTS
Flow Stability Means Improved Uptime
Extreme water depths mean extreme conditions, like frigid
temperatures, high pressures, and corrosion. Such severe
temperatures, pressures, and pressure drops can result in the
formation of ice-like structures, called hydrates. Hydrates
can cause large plugs that block piping and other equipment,
causing them to become inoperable. High pressure and low flow
rates can also cause erosion, often requiring increased valve
maintenance or costly downtime.
Mono-ethylene glycol (MEG) is used as a freeze-protectant to
help inhibit the formation of hydrates. MEG injection control
valves regulate the flow of MEG and are critical to providing
precise and continuous MEG dosage, as even the smallest
percentage loss of MEG dosage can lead to hydrate formation.
Fisher HP control valve with Cavitrol III micro-flat trim
(often used in MEG injection applications)
Tested to the highest requirements, including seat leakage,
packing emission, cavitation, and erosion, Fisher control valves
and instruments used in MEG injection applications are designed
to prevent erosion damage to the seat and plug to maintain
integrity for tight shutoff and precise, continuous flow control.
The valve plug and seat ring are uniquely matched to regulate
flow during very low flow and high pressures. A valve with
built-in reliability means preventing hydrates from the start,
so you can meet the flow requirement and attain the highest
performance from your process.
Fisher control valves shown in an offshore environment.
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Offshore Solutions | 11
INCREASE UPTIME
Improved Availability and Dependable Support
The way you manage key production assets like control valves directly affects your plant’s
efficiency, reliability, and profitability. Emerson Process Management’s Fisher Services provides
trusted expertise for control valve maintenance and repair.
Whether you’re starting or commissioning a process, scheduling diagnostics and repair, or
planning a turnaround with upgrades to optimize and extend your plant’s lifecycle, our network of
owned and authorized service centers around the world provide effective maintenance through a
network of experienced, highly skilled technicians when and where you need them.
To help you maintain your plant’s efficiency and reliability, Fisher Services uses only certified OEM
parts and assemblies sourced through local inventories, regional parts distribution centers, and
Quick Ship facilities to deliver unmatched response to customer needs.
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To learn more, visit Fisher.com/OilandGas or contact
your local Emerson sales office. Take advantage of
the many benefits of Fisher solutions today.
http://www.Facebook.com/FisherValves
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Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
D352312X012 / MAA17 / Nov14
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© 2014 Fisher Controls International LLC. All rights reserved.
Fisher, Whisper Trim, WhisperFlo, Cavitrol, easy-e, Vee-Ball, and FIELDVUE are marks owned by one of the
companies in the Emerson Process Management business unit of Emerson Electric Co. Emerson Process
Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All
other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has
been made to ensure their accuracy, nothing herein is to be construed as a warranty or guarantee, express
or implied, regarding the products or services described herein or their use, performance, merchantability
or tness for a particular purpose. Individual results may vary. All sales are governed by our terms and
conditions, which are available upon request. We reserve the right to modify or improve the designs or
specications of our products at any time without notice. Responsibility for proper selection, use and
maintenance of any product or service remains solely with the purchaser and end user.
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