MOBILE STANDARD OF THE 2ND DISCHARGE FOR VERIFICATION OF WELL MEASUREMENT UNITS Russian patent published in 2021 - IPC E21B47/10 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measuring equipment, namely to devices used to measure the parameters of a multiphase flow and transfer the unit of mass flow rate of well production to working measuring instruments. The standard contains a line for supplying an oil-gas-water mixture, a horizontally oriented separation and measuring tank, a vertically oriented oil analyzer, a liquid measurement line, a gas measurement line, and an automated control system. Moreover, the separation-measuring tank consists of two communicating vessels, a lower tank for receiving liquid and an upper tank for receiving gas, equipped with a hydrocyclone with a gas swirler. The hydrocyclone is connected to the oil-gas-water mixture supply line and is partially submerged in the container for receiving the liquid. Antifoam, a drop catcher, a level meter, and a pressure transducer are installed in the separation-measuring tank. A liquid measurement line is connected to the container for receiving liquid, and a gas measurement line is connected to the container for receiving gas. The gas measurement line contains a system for measuring the content of dropping liquid in the associated petroleum gas flow. The liquid measurement line contains a moisture transducer installed at the liquid outlet from the separation and measurement tank, three parallel sections, into which liquid mass flow meters are connected, and a multiphase flow meter. A differential pressure transducer and an oil-gas-water mixture sampler connected to the oil-gas-water mixture supply line to the oil analyzer are connected to the oil-gas-water mixture supply line. The oil analyzer contains a rotary housing mounted on a support with the ability to fix the vertical position. The analyzer housing contains a level gauge with an interface level meter, pressure and temperature transducers and a hydrostatic pressure sensor, the sensing elements of the level gauge and auxiliary structures are located inside the analyzer case. The automated control system includes a control cabinet with a controller complete with a display. These structural elements are located in a block-container type box, located on the base, divided by a sealed explosion-proof partition into two rooms, a technological unit and a control unit.

EFFECT: invention ensures possibility of measuring the parameters of the multiphase flow of the well product (oil and gas-water mixture) and transferring the mass flow rate unit of the well product to the working means for measuring the mass flow rate and the amount of crude oil, gas in operation, for checking and determining with increased accuracy the flow rates of oil wells for oil and gas, with the purpose of ensuring the uniformity of measurements of mass flow.

1 cl, 8 dwg