As of December 25, the first "Fengfeng Firewood storage" microgrid of the second Oil production plant of Changqing Oilfield has been put into operation for 1 month in the Mu 165 well site of Fanjiachuan operating area, and all indicators are normal.
01 Why is the two-seat valve easy to oscillate when working with small opening?
For a single core, when the medium is flow open, the valve stability is good; When the medium is flow closed type, the stability of the valve is poor.