Auto layer switch is used in high water cut oil well for detecting and blocking water. A type of axial force balance 〖JP2〗switch was designed, which was independent of peripheral pressure. According to the lab test of pressure and temperature and field application, the results show that the switch has the ability to detect and block water reliably and it meets the needs of the field production.
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张俊亮,张维友,李明婕,杨光军.油井自动分层找堵水开关设计及试验[J].机床与液压,2019,47(13):94-97. . Design and Test of Automatic Layer Tool for Oil Well Water Blocking[J]. Machine Tool & Hydraulics,2019,47(13):94-97