OIL-WELL GAS PROCESSING METHOD Russian patent published in 2015 - IPC F25J3/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to an oil-well gas processing technology based on low-temperature condensation. An oil-well gas processing method involves compression of initial gas, low-temperature separation, de-ethanisation and obtainment of propane, butane and pentane fractions. Condensate obtained at low-temperature separation is used as a cooling agent, thus forming a cooling cycle; with that, some part of condensate is throttled; the obtained cold is used for cooling of a compressed gas-liquid flow; the separated gas phase is compressed and mixed with the compressed gas-liquid flow, and the liquid phase remained after evaporation is mixed by pressure rise with the other part of condensate and the low-temperature mixture is supplied for gas fractionation.

EFFECT: use of the invention will allow improving efficiency of technological processes, providing quality processing of oil-well gas under field conditions and obtaining quality target products for final use in production processes.

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