MULTIPHASE FLOW SAMPLING DEVICE Russian patent published in 2023 - IPC G01N1/10 

FIELD: oil and gas industry.

SUBSTANCE: device for sampling a multiphase flow is disclosed, in which the flow shaper includes a reducer and a diffuser, hermetically interconnected to form an annular cavity, it is additionally equipped with five rods, which are metal rods of predetermined dimensions, and a tubular metal element provided with a through side hole, the piston is additionally equipped with through holes, the flange is additionally provided with holes, the reducer has a given shape and given dimensions with the possibility of placing a sealing ring on its outer surface and with an axial flow channel, which is tapered at the inlet, and at the outlet is made with the possibility of forming a uniform distribution of gas, liquid hydrocarbons and water in a multiphase flow, the diffuser is made of a predetermined shape and dimensions with an axial flow channel, which at the inlet is configured to form a uniform distribution of gas, liquid hydrocarbons and water in multiphase flow, and at the outlet it is made expanding, provided with through holes and a through narrow hole, made with a given minimum size, ensuring the passage of a multiphase flow from the flow former through it, and located with the possibility of hydraulic communication of the axial flow channel with the annulus, with a through side hole of the tubular metal element, the thrust element is provided with through holes and is hermetically installed in the flow former, ensuring the location of the sealing ring, while three rods are fixed in the through holes of the piston located at a given distance between themselves, and in the through holes of the diffuser with the possibility of acting on the thrust element, two rods and a tubular metal element are installed in the holes of the flange and in the through holes of the thrust element and located at a predetermined distance between them, connect the flange and the thrust element, provide the piston with a reciprocating movement, while the diameter of the tubular metal element is 10-60 times greater than the diameter or thickness of the through narrow hole, the probe is hermetically installed in the through holes of the flange and diffuser with the possibility of rotation around its axis, moving together with the piston and with the possibility of placing the nozzle in a given sampling plane, the sealing ring is an elastic plastic sealing ring.

EFFECT: invention makes it possible to increase the representativeness of the sampled part of the gas-liquid flow, providing a high degree of homogenization of the gas-liquid mixture in the sampling zone.

1 cl, 4 dwg, 1 ex