Synthetic Natural Gas Compressor Oil
The lubricant problems generally encountered with the compression of natural gas are related to the reaction of the gas stream with the lubricant. These include:
• Solubility of gas in the lubricant causes reduced lubricant
viscosity resulting in cylinder scoring and high wear rates.
Compensating for this with a higher viscosity lubricant can
cause handling problems at lower temperatures.
• Absorption of lubricant into the gas stream results in high
lubricant usage rates and a depletion of protective lubricant
film in the cylinder.
• Condensed hydrocarbon liquids in the cylinder area can
"wash" the lubricant from the cylinder walls causing severe
• The carryover from increased lubricant 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. NGL protects against the corrosive effect of these gases to
compressor components while maintaining lubricating properties.
Summit NGL Series polyalkylene glycol lubricants were formulated to combat these problems associated with high pressure reciprocating compressors pumping natural gas, carbon dioxide, or process gases. NGL Series
lubricants 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 NGL Series lubricants allows protection over a broad temperature range. The low pour point provides allseason ease of handling even in very cold climates.
Summit NGL Series can offer these same advantages when compressing a number of other difficult gases including hydrogen, helium and nitrogen. Please contact your Summit representative with your specific
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