moreover, an intense fluctuation of the level of liquid in the oil-gas separator at downstream positions of the pipeline would be caused when a longer liquid slug leaves the end of pipeline.
同时,离开管道末端的长液塞会引起下游油气处理设备液位的剧烈波动,影响正常生产。
according to this problem, casing oil stolen prevention sealing valve was developed, matching with down-hole oil-gas separator and gas lift valve lift technology.