ALGL Series Polyalkylene Glycol Natural Gas Compressor Oils

The oil problems generally encountered with the compression of natural gas are related to the reaction of the gas stream with the oil. These include:

• Solubility of gas in the oil causes reduced oil viscosity resulting in cylinder scoring and high wear rates.
  Compensating for this with a higher viscosity oil can
  cause handling problems at lower temperatures.
• Absorption of oil into the gas stream results in high
  oil usage rates and a depletion of protective oil film in the cylinder.
• Condensed hydrocarbon liquids in the cylinder area can
  "wash" the lubricant from the cylinder walls causing severe
  mechanical damage.
• The carryover from increased oil feed rates or use of
  heavily compounded oils to compensate for hydrocarbon
  dilution and wash-out can damage the well formation.
• Gases such as CO2 and H2S may be corrosive to compressor
  components. ALGL protects against the corrosive effect of these gases to compressor components while maintaining lubricating properties.

ALGL Series polyalkylene glycol compressor oils were formulated to combat these problems associated with high pressure reciprocating compressors pumping natural gas, carbon dioxide, or process gases. ALGL Series compressor oil are extremely resistant to hydrocarbon dilution and absorption of the gas stream components. Any lubricant carryover will not impair the well formation as it is compatible with well-bore treatment fluids and soluble in water. The result is a lubricant maintaining the proper viscosity for wear protection, resisting wash-out and carryover, and posing no threat of damage to the well formation.

The extremely high viscosity index of the ALGL Series compressor oils allows
protection over a broad temperature range. The low pour point provides all season ease of handling even in very cold climates.

ALGL Series compressor oils can offer these same advantages when compressing a number of other difficult gases including hydrogen, helium and nitrogen. Please contact your Simmons Synthetics representative with your specific gas application.

Physical Properties