Patent ID: 8726981
Filing Date: 2014-05-20
Classification: E21B,F04C

Abstract:
1. A method for producing fluids from a well, the method comprising: (a) providing a lower pump and an upper pump, the lower pump being a progressing cavity pump driven by an electric motor mounted below the lower pump, the upper pump being a progressing cavity pump driven by a rotatable drive rod; (b) securing the lower pump and motor to a lower end of a lower section of tubing; (c) securing a lower end of the upper pump to an upper end of the lower section of tubing; (d) connecting a discharge of the upper pump to an upper section of tubing extending to a wellhead and extending the rod downward from the wellhead through the upper section of tubing to the upper pump; then (e) operating the lower pump to cause all of the fluid pumped by the lower pump to flow from the lower pump to the upper pump; and (f) rotating the drive rod to cause fluid to flow from the upper pump to the wellhead.