Brochure

4 | Offshore Solutions
MAXIMIZE PRODUCTION
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.
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)