Bottom discharge electric submersible pump system and method

摘要

A bottom discharge ESP is disposed within a pod casing. The pod casing is adapted to connect to and support the weight of downstream tailpipe tubing sections so the ESP does not have to support the same. The ESP may be suspended within the pod interior space by a supporting tube disposed above the ESP and extending into the pod interior space. The ESP includes a discharge tube with a seal assembly that engages a seal bore formed in the bottom end of the pod and cooperating with an interior surface of the tailpipe tubing to convey pumped injection fluid downward to the tailpipe tubing. Part of the pod casing may be perforated to allow injection fluid to flow into the pod interior space. Alternatively, perforated tubing joints or sliding sleeves may be provided on an upper tube to permit flow of injection fluid to the interior of the pod.