APPARATUS, SYSTEM AND METHOD FOR SEALING SUBMERSIBLE PUMP ASSEMBLIES

摘要

A seal section for an electric submersible pump assembly includes a rotatable shaft extending axially through a seal section, and a head tubularly encasing a top portion of the seal section and coupled to a centrifugal pump intake. The head further includes a portion defining at least one well-fluid entrance aperture proximate to a bearing set, the at least one well-fluid entrance aperture extending radially through a wall of the head, and a portion defining at least one well-fluid exit aperture proximate to a mechanical seal and extending radially through the wall of the head. The mechanical seal is sealedly coupled to the rotatable shaft within the head. The bearing set is located between the centrifugal pump intake and the mechanical seal, the bearing set including a thrust bearing fixedly coupled to the head and a thrust runner keyed to the rotatable shaft.