ASSOCIATED OIL GAS COMPRESSION PLANT Russian patent published in 2017 - IPC F25J3/00 

FIELD: oil and gas industry.

SUBSTANCE: presented plant includes a compressor, a fractionator with dephlegmator and stripping sections, and is connected to oil preparation plant. In the course of plant operation, associated oil gas from oil preparation plant is compressed in the compressor and fed between the sections to the fractionator. A first part of prepared oil as absorbent is fed to the upper part of the dephlegmator, and a second part is supplied as coolant to the block of heat-mass-exchange elements of the dephlegmator section and after heating it is returned to the oil preparation plant. Compressed gas is discharged from the top of the fractionator, and condensate is discharged from its bottom to the oil preparation plant. Crude oil is supplied to the oil preparation plant, and water and prepared oil are taken out. In the distillation section, a part of the compressed gas is supplied as a heat carrier after the compressor.

EFFECT: reduction of losses of heavy components with compressed gas and increase in oil yield.

3 cl, 1 dwg