Composition for compressor working fluid for applications with soluble gas or gas condensates

A method of achieving favorable viscosity for a compressor working fluid, including the step of:

• combining a dissolved gas or a condensate from a dissolved gas in a dilution amount of at least 5% by weight with a base fluid including a first base stock and a second base stock, wherein the viscosity difference between the first and second base stock is greater than 125 cSt, Kv 100° C. wherein the base fluid is chosen from the group consisting of the first base stock being a synthetic polyalphaolefin (PAO) with a viscosity less than 10 cSt and greater than 2 cSt, Kv 100° C. with the second base stock being a synthetic polyalphaolefin with a viscosity greater than 135 cSt, Kv 100° C., the first base stock being a polyglycol or polyalkylene glycol with a viscosity less than 15 cSt and greater than 2 cSt, Kv 100° C. and the second base stock being a polyglycol or polyalkylene glycol with a viscosity greater than 135 cSt, Kv 100° C., and the first and second based stocks being comprised of two polyol esters.

A method of reducing dilution from gas being compressed for a compressor working fluid, including the step of combining a dissolved gas or a condensate from a dissolved gas in a dilution amount of at least 5% by weight with a base fluid including a first base stock and a second base stock, wherein the viscosity difference between the first and second base stock is greater than 125 cSt, Kv 100° C., wherein the base fluid is chosen from the group consisting of the first base stock being a synthetic polyalphaolefin (PAO) with a viscosity less than 10 cSt and greater than 2 cSt, Kv 100° C. with the second base stock being a synthetic polyalphaolefin with a viscosity greater than 135 cSt, Kv 100° C., the first base stock being a polyglycol or polyalkylene glycol with a viscosity less than 15 cSt and greater than 2 cSt, Kv 100° C. and the second base stock being a polyglycol or polyalkylene glycol with a viscosity greater than 135 cSt, Kv 100° C., and the first and second based stocks being comprised of two polyol esters.