The process for extracting hydrocarbons from high-pressure gas at low temperatures is not new. As early as 1936 experimental work was done in cycling plants to increase hydrocarbon recovery by low-temperature separation at elevated pressures which resulted in increased revenue from the sale of liquid fractions and reduced the horsepower requirement for injecting the gas back to formation. Low-temperature separation is now finding wide application in small compact-type low-temperature units for individual gas-distillate wells in order to increase stock-tank liquid for a rapid payout investment, and at the same time reduce the water content of the gas to meet pipe-line specifications. Performance tests, calculated studies, and a description of this last-mentioned low-temperature unit are presented to show the advantages of more efficient equipment for high-pressure gas-distillate production.

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