PIPE DEVICE OF PRELIMINARY SEPARATION Russian patent published in 2016 - IPC B01D19/00 E21B43/34 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas industry and can be used for preliminary separation of mixture into gas and liquid in systems of collection and processing of production of oil and gas wells. Device contains pipeline in which there are combined swirler and branch pipes for supplying a gas-liquid mixture and discharging of liquid and gas, centrifugal separator, made in the form of a flat spiral, closed on ends with plates with sickle-shaped reflectors, and output pipe. Pipeline is made with an angle 30° and is connected to the vertical separation chamber. Swirler and shaft are installed in the branch pipe to feed mixture. Output pipe is linked with the separation chamber and box installed above the holes, that are made along the length of the pipeline on side surface, in which there is coaxial additional pipe along the box, that is closed at the ends and has a slot with an angle from 90° to 120° length. Opposite the slot there are holes in additional tube, they are identical to holes in the pipeline, which excretory tubes are welded into. Diameter of additional pipe is less than or equal to half of the diameter of the pipeline. Side window of the box is closed by cover. In the box above outlet pipes there is a slot-type separator. In the pipeline under the box there is a hole to drain. There is a baffle at the inlet of separation chamber. There is a flat spiral coil in the knee of outlet pipe above the separation chamber, and there is an antifoaming agent in the chamber above the drain branch pipe. A ball valve can be installed on the pipe which connects box and nozzle for gas discharge.

EFFECT: increase of efficiency of separation of gas-water-oil mixture while reducing dimensions of the structure.

1 cl, 1 dwg