pressure responsive downhole tool, and method for using a pressure responsive downhole tool

摘要

1/1 summary “Pressure-responsive Potion Bottom Tool, and Method to Use a Pressure-Responsive Potion Bottom Tool” A Pressure-Responsive Potion Bottom Tool comprises a power piston pressure relief valve that is selectively activated and deactivated to allow pressure related operations to be conducted. the pressure relief valve will not open until the power piston is activated, which also requires the operating element (the ball valve, for example) to be opened, thus avoiding situations where the ball valve is inadvertently placed in the open lock position.