دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a device that prevents the entry of fluids into the tubing string while it is being lowered into the well. At the desired packer setting depth, a surface pump is started to elevate the tubing pressure and open the pump-out slug. With the plug open, formation fluids can enter the tubing. pump plunger n: see sucker rod pump.