Application of UF-Ⅱ Bi-rotor Flowmeter and Technical Improvement of Prover

The oil metering and regular calibration of flowmeter are important work for petroleum transportation and petrochemical enterprises. This paper describes the application of UF-Ⅱ bi rotor flowmeter and technical improvement of LJG-22 prover. The advantages and disadvantages of Roots flowmeter, blade flowmeter and bi-rotor flowmer are examined and analyzed. Combined with the field application and proving/data comparison of flowmeter, the UF-Ⅱ bi-rotor flowmeter is taken as a major metering apparatus for oil transportation in the 1st Oil Production Plant of Jiangsu Oilfield. The technical improvement on the prover is made. A new type motor-driven cross valve and automatic control system for LJG-22 prover is developed, which is helpful to the proving efficiency and quality of flowmeter calibration.