Thanks for the reply
For sure there is no check valve downstream of ESP and at the wellhead beside the choke valve.there is no actuated or non-actuated isolation valve except wing valves on wellhead tree.
Hi
I am working in oil production company , which have some wells ESP pumps with no check valve(removed) at the discharge line .
This happen because of ease of work over operations ,and difficulty of emptying the tubing line for some scale problems. ESP backspin is taking place at shutdown with...