DEVICE FOR MEASUREMENT OF OIL AND GAS WELL FLOW RATE Russian patent published in 2015 - IPC E21B47/10 

FIELD: measurement equipment.

SUBSTANCE: invention relates to the field of oil production and to instrumentation and can be used for measurements of oil and gas well flow rate. The device contains an input pipeline, a separator with a float, a gas pipeline with a gas meter and on-off air operated valve fitted with position locks of and the bellow chamber. The liquid pipeline is fitted with a liquid meter and the same valve. Above-bellow (minus) cavities of chambers of both valves are pneumatically connected a gas spool. To the top cavity of the separator the input channel of the switching device with three output channels is connected pneumatically. One output channel of this device is pneumatically connected to the above-bellow cavity of the valve chamber on the gas pipeline. The second output channel is connected pneumatically to the above-bellow cavity of the valve chamber on the liquid pipeline. The third output channel is connected pneumatically to the gas spool on the output pipeline.

EFFECT: design simplification, possibility of measurement of extremely small flow rates of not only liquid, but also gas.

1 dwg