DEVICE FOR SPRAYING WITH LIQUID AT WELL INFLOW COMPRESSION Russian patent published in 2014 - IPC E21B43/34 

FIELD: oil and gas industry.

SUBSTANCE: invention is related to method and device for inflow liquid separation from gas at well inflow compression. The method for inflow liquid separation from gas at well inflow compression using a gas separator equipped with inlet tube for well inflow and liquid outlet tube lies in entry of the well inflow to the liquid separator by means of one inlet tube ended inside the liquid separator; delivery of separated liquid from the gas separator through liquid outlet tube to gas from gas outlet tube at the mixing point located downstream the gas separator and upstream the compressor; and retention of separated liquid in the separator within the whole detention period in case of large quantity of liquid such as tides and plugs, in the well inflow to the liquid separator in order to exclude large content of liquid in the gas supplied to the compressor; spraying of the separated liquid upstream the compressor inlet or at the compressor inlet. The device for liquid separation from gas in the well inflow at its compression comprises the liquid separator equipped with well inflow inlet pipe, gas outlet tube and liquid outlet tube, the mixing point, which is located downstream the gas separator and upstream the compressor and supplies separated liquid from outlet tube for the liquid separator to gas from the gas outlet tube, and at least one nozzle for liquid spraying that is located upstream the compressor. At that location of the nozzle is selected in the following way: The liquid spraying nozzle is placed at the liquid outlet tube upstream the mixing point; the first nozzle is placed in the liquid outlet tube upstream the mixing point and the second nozzle is placed in the gas outlet tube upstream the mixing point; the nozzle is placed in the compressor inlet tube downstream the mixing point; the first nozzle is placed at the gas outlet tube upstream the mixing point and the second nozzle is placed in the compressor inlet tube downstream the mixing point; the first nozzle is placed in the liquid outlet tube upstream the mixing point, the second nozzle is placed in the gas outlet tube upstream the mixing point and the third nozzle is placed in the compressor inlet tube downstream the mixing point.

EFFECT: preventing entry of liquid to the compressor in too large concentrations and having too big size of drops.

37 cl, 11 dwg, 4 tbl