Downhole well pump

Details Downhole well pump Downhole well pump

E - Fixed Constructions

21

B

E21B 43/12 (2006.01) E21B 33/10 (2006.01) E21B 34/06 (2006.01)

Patent

CA 2642188

The invention relates to an apparatus for use with production tubing to pump fluid from a well to the surface comprising a tubular conduit having upper and lower portions, where the lower portion has an inner or outer diameter greater than the diameter of the upper portion to form a first internal or external shoulder where the lower and upper portions are engaged; sealing means disposed on the conduit for sealing between the conduit and a well casing; and one or more valve sections having a valve adapted to open during downwards motion through fluid and to close during upwards motion through fluid.

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