Post on 04-Nov-2015
description
SITUATION An owner/operator was facing a major system upgrade on an oil production platform located in the North Sea. The existing compressor train system was obsolete, consisting
of three compressors driven by a single gas turbine. The controls on the system were
manually set and consisted of three anti-surge controllers. These controllers struggled
to maintain an adequate flow rate and operated dangerously close to surge. To further
complicate the situation, the controllers were no longer being supported by the
manufacturer. This presented a significant threat to production should the existing
controllers failed. Finally, the client had installed new transmitter hardware into the
control panels and wanted to incorporate them into the new control system.
SOLUTION Continuing to build upon a 15-year relationship, CCC was called in to replace the outdated systems. CCC determined that the Series 3++ anti-surge controllers would effectively update
the system and make it more reliable. The Series 3++ system calculated the proximity to
surge using multi-variable application functions that were predetermined and customized
to the clients specific needs. This system was able to tailor the response to the size of each
disturbance, preventing surge without offsetting other processes or requiring massive
energy. A Series 3++ performance controller was implemented to adjust the speed to control
suction pressure. The update was customized to integrate the client-installed hardware
into the system, interfacing with the turbine HMI to allow the operators to monitor the
compressor inputs, recycle value positions, etc.
RESULT The system was installed and fully operational on schedule. By updating the compressor control system with the Series 3++ anti-surge and performance controllers, the client
maintained a security of supply, a high level of reliability, and the added assurance of full
support on the system. The new system afforded the platform maximum machine availability.
The relationship between the client and CCC provided a synergy that allowed CCC to
customize a solution that met the clients specific issue and need. The project was so
successful that the client is looking to implement the same solution on another platform.
Throughput enhancement and reliability were achieved
with a customized solution.
COMPRESSOR CONTROLS CORPORATION
International Headquarters | 4725 121 St. | Des Moines, IA 50323 USA | Tel: +1.515.270.0857 | Fax: +1.515.270.1331 | www.cccglobal.com
Value-Added Solution Enhances Production and Reliability on Gas Turbine Compressor System