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Projects

Below is a list of a few of the projects that SIS has worked on:

  • Cherokee LNG – AGL Resources
    Upgraded the facility controls to a Honeywell DCS system. Project included software replacement for existing DCS controls, incorporating standalone PID control loops, HMI graphics, startup and commissioning.

 

  • Pivotal Propane – AGL Resources
    Fully automated new peak shaving propane plant. Automation included functional specification, system controls, startup, commissioning and training.

 

  • Sumerset Compressor Station – Duke Energy
    Implemented reciprocating unit torque controls for seven units. Automation included engineering calculations, torque control, alarm monitoring and notification, unit shutdown logic, startup and commissioning.

 

  • Destin Pipeline – Destin Pipeline
    Meter station RTU communications upgrade project for all meter station RTUs on the Destin Pipeline. Project included replacing all meter station RTUs with new Ethernet processors, program modifications, communications panel fabrications, startup and commissioning.

 

  • Automation Training – Southern Natural Gas, Co.
    Developed and implemented training that supported SNG’s automation systems. Training included system overview, troubleshooting and calibrating end devices, testing safety systems, using troubleshooting software tools, maintaining and troubleshooting valve operators, HMI user and configuration, and maintaining and troubleshooting remote terminal units (RTUs).

 

  • Bear Creek Dehydration Facility – Bear Creek Storage, Co.
    Automated the Bear Creek dehydration facility, which included four dehydration units with four towers each. Automation included tower sequencing, gas flow calculation, regeneration flow control and gas cooler control.  Automated five water bath process gas heaters at the Bear Creek dehydration facility. Automation included online and off-line sequencing, fuel control, mode switching and safety protection.

 

  • Elba Island LNG Facility (Recommissioning)- Southern LNG.
    The Elba Island LNG facility was re-commissioned after twenty years of being idle. SIS provided software, human machine interface (HMI), I/O and panel testing, commissioning support and training for the following systems:
    + LNG tanker unloading
    + LNG tank level, temperature and pressure control
    + Vaporizer monitoring and interface
    + Primary and Secondary Pump control
    + Boil-Off vapor and compression control
    + Safety systems for dock and plant areas
    + Chromatograph data interface
    + Standby Generator monitoring

 

  • Elba Island LNG Facility (Expansion) – Southern LNG.
    The Elba Island LNG facility was expanded in 2005. As a contractor for Chicago Bridge & Iron (Pittsburgh) SIS provided software, human machine interface (HMI), I/O and panel testing, commissioning support and training for the following systems:
    + LNG tanker unloading
    + LNG tank level, temperature and pressure control
    + Vaporizer monitoring and interface
    + Secondary Pump control
    + Boil-Off vapor and compression control
    + Additional safety system monitoring
    + Chromatograph data interface
    + Standby Generator monitoring

 

  • Enterprise Compressor Station – Southern Natural Gas, Co.
    o Fully automated the Enterprise Compressor Station including six low-speed and 2 high-speed reciprocating units. Automation included station yard valve sequencing, station set point control, engine start and stop sequences, load step control, governor control, air-to-fuel ratio control, timing control and various efficiency calculations.

 

  • Horsepower Addition – Southern Natural Gas, Co.
    o Modified existing automation system to add additional horsepower at various Southern Natural Gas locations:
    + Bell Mills Compressor Station – Solar Saturn
    + Franklinton Compressor Station– Caterpillar high speed
    + Gwinville Compressor Station– Solar Saturn
    + Gwinville Compressor Station– Solar Centaur
    + McConnells Compressor Station– two Solar Saturns
    + Pell City Compressor Station– Solar Saturn
    + Providence Compressor Station– Solar Centaur
    + Thomaston Compressor Station– 2 Caterpillar high speed
    + Wrens Compressor Station– 2 Caterpillar high speed

 

  • Erath Compressor Station – Sea Robin Pipeline.
    Fully automated the Erath Compressor Station including two low speed reciprocating units. Automation included station yard valve sequencing, station set point control, air compressor control, hydraulic oil pressure control, gas cooling control, engine start and stop sequences, load step control, governor control, air-to-fuel ratio control, timing control, and efficiency calculations.

 

  • Hardware Replacements – Southern Natural Gas, Co.
    Full RTU replacements have been performed at 14 locations along the SNG pipeline totaling 108 RTUs. These replacements included panel layout design and fabrications, hardware replacement and end device testing.

 

  • Levelization Project – Southern Natural Gas, Co.
    The levelization project included upgrading all of Southern Natural Gas’s automation systems to a standard level. Levelization project included upgrades for station set point control, reliability data, oil consumption reports, reciprocating engine unload logic, engine add and drop logic, differential override backup block valve system, restoration logic, and various additional upgrades.

 

  •  Main Pass 260 – Shell Oil Company.
    Fully automated the Main Pass 260 offshore liquid handing facility. Automation included gas and liquid run switching and flow control, slug catcher liquid control, emergency shutdown protection, air compressor control and flare gas system control.

 

  • Olga Compressor Station – Southern Natural Gas, Co.
    Automated the liquid re-injection system at the Olga Compressor Station. Automation included holding vessel liquid control, liquid pump control and unit valve sequencing.

 

  • Pascagoula Slug Catcher – Shell Oil Company.
    Fully automated the Pascagoula slug catcher facility. Automation included slug catcher liquid control, scrubber vessel level control, emergency shutdown protection and particulate vessel level control.

 

  • Pascagoula Compressor Station – Destin Pipeline, LLC.
    Fully automated the Pascagoula compressor station. Automation included yard valve sequences, emergency shutdown monitoring and control, station set point control and gas cooling control.

 

  • Providence Compressor Station – Southern Natural Gas, Co.
    Fully automated the Providence compressor station. Automation included yard valve sequences, emergency shutdown monitoring and control, and station set point control.

 

  • Rome Compressor Station – Southern Natural Gas, Co.
    Fully automated the Rome compressor station. Automation included yard valve sequences, emergency shutdown monitoring and control, station set point control and gas cooling control.

 

  • Sand Hill Compressor Station – Destin Pipeline, LLC.
    Fully automated the Sand Hill compressor station. Automation included yard valve sequences, emergency shutdown monitoring and control and station set point control.

 

  • Toca Compressor Station – Southern Natural Gas, Co.
    Fully automated the Toca compressor station after Hurricane Katrina. Automation included 8 reciprocating engines and two turbine units, emergency shutdown monitoring and control, and station set point control.

 

  • Toca Dehydration & Liquids Facility – Southern Natural Gas, Co.
    + Fully automated the Toca dehydration facility, which included four dehydration units with three to four towers each. Automation included tower sequencing, wet gas flow control, regeneration gas flow control, gas cooler control and station bypass flow control.
    + Automated two regeneration gas heaters at the Toca dehydration facility. Automation included online and off-line sequencing, fuel control and safety protection.
    + Automated the flare system associated with the dehydration facility. Automation included in-service and out of service sequences, liquid control, air to fuel ratio control and emergency shutdown monitoring.