OIL WELL SEPARATED GAGING DEVICE BY OIL, GAS AND WATER Russian patent published in 2017 - IPC E21B47/10 

FIELD: oil and gas industry.

SUBSTANCE: device includes a separator in the form of a horizontal cylindrical vessel with a preliminary cyclone, gun barrel and outlet sections separated with partitions. A cyclone is installed at the inlet to the cyclone section. Measuring lines of gas and liquid with pressure and temperature sensors and piping housed in them, instrumentation unit. The partition between the cyclone and gun barrel sections is made in the form of a set of tubes, the partition between the gun barrel and outlet sections is made in the form of an overflow wall. The measuring line of the liquid is made in the form of a measuring line of water, oil and gas, combined at the outlet to the outlet pipeline of the oil and gas mixture. The device is configured to operate in a continuous mode at the same pressure in the separator as in the wellhead. The device is placed on an automobile platform and is provided at the inlet to the device with an inlet for supplying a demulsifier and a multiphase pump providing a continuous supply of oil-gas-oil mixture to the separator and at the inlet to the separator - with a remote hydrocyclone with one input. Internal cyclone with a tray for draining the liquid after the cyclone, made in the form of an inclined shelf and located inside the cyclone section of the separator. In the gun barrel section there is a phase-to-phase level gage and an upper limit level indicator, the partition between the preparatory and gun barrel sections is supplemented by a bank of vertical tubes. Pumps with frequency drive are installed on measuring lines of water and oil. A gas separator is installed on the measuring line of oil. The gas measuring line is equipped with a slot-type knockout drum.

EFFECT: increased oil, water and gas mixture separation value into three phases - gas, oil and water, eliminated impact of plant operation on the change in well capacity, expanded functionality, and ensured mobility of the installation.

5 cl, 1 dwg