Gas Conditioning Skid

Gas Conditioning Skids reduce the BTU of the gas stream for compression fuel gas requirements or to flare.

Exterran’s Gas Conditioning Skid is a compact, integrated, skid-mounted system designed for hydrocarbon dewpoint control and increased recovery of valuable natural gas liquids (NGL) in the wellstream following upstream dehydration.

Ideally suited for quick installation and short-term operating environments, our Gas Conditioning Skid saves you startup time and space, recovering valuable NGL and reducing hydrocarbon dew point to pipeline specifications. The package also reduces BTU content of fuel gas proportional to inlet BTU.

Key Benefits

Maximize Production

  • Startup fast and save space with our compact, integrated design and quick delivery
  • Recover valuable natural gas liquids from the gas stream

Lower Costs

  • Lower BTU heating value for compressor fuel gas
  • Obtain fast, professional service, support and spare parts from local technicians in every major oil & gas producing area

Manage Risks

  • Safeguard your investment with our extensive warranty on our manufactured products that runs12 months from startup or 18 months from delivery, whichever comes first
  • Optimize safety with the latest ASME standards code stamped on each unit and ensuring consist design and construction

How it Works

The assembly consists of a gas/gas exchanger with hot gas bypass, JT valve, cold separator, methanol injection system and control system. Following gas/liquid separation and gas dehydration, high-pressure gas enters the assembly through the gas/gas exchanger and inlet NGL/gas exchanger for pre-cooling. Methanol is injected to prevent formation of hydrates, and the raw natural gas passes through a JT valve. The resulting pressure drop causes expansion of the gas and a significant temperature reduction due to the Joule-Thompson effect.

The cooled gas is routed to the cold separator to remove the condensed NGL. The outlet gas from the cold separator is routed through the gas/gas exchanger for inlet cooling. The NGL from the cold separator is routed through the inlet NGL/gas exchanger and then to a separate optional pressurized NGL storage tank.

Standard Features & Options

Standard Features

  • JT valve with pressure pilot controller
  • ASME code
  • NGL/gas exchanger
  • ASME code gas/gas exchanger
  • ASME code -100 °F cold separator
  • Temperature controller
  • Instrument gas/air manifold
  • Sight glass assembly
  • Methanol pump and delivery system
  • Cold thermal insulation
  • Hot gas bypass system for startup
  • Relief valves
  • Heavy-duty steel skid with lifting lugs
  • 1300 psig MAWP upstream of JT valve outlet
  • 500 psig MAWP downstream of JT valve outlet


  • Upstream dehydration
  • Additional methanol injection pump
  • NGL bullet tank