Abstract: A downhole pumping system includes a downhole pump that is coupled to a downhole motor. The downhole motor includes a motor protector that utilizes one or more retractable and extensible bellows, instead of an elastomeric bag, to accommodate motor oil contraction and expansion.

Abstract: A modular plug system facilitates engagement and disengagement of the power cable with a submergible pumping system. The modular plug includes a first plug portion connected to the power cable and mounted within an upper assembly of the connector. The plug also includes a second plug portion connected by a plurality of conductors with the submergible motor. The second plug portion is mounted within a lower assembly of the connector and is configured for mating engagement with the first plug portion. The upper assembly and lower assembly of the connector also are designed for relatively easy engagement and disengagement coincident with the engagement and disengagement of the plug.

Abstract: A method for deploying a progressing cavity pump in a deviated well. The method allows a wireline deployment system to be used in moving a progressing cavity pump through a deviated well. The wireline is connected to a pump-down tool which is lowered into the production tubing. The pump-down tool allows a seal to be formed between an interior surface of the production tubing and the pump-down tool. This allows pressure, such as hydraulic pressure, to push the progressing cavity pump through well deviations to a desired location.

Abstract: A packer assembly simplifies the location and relocation of a bottom intake electric submergible pumping system within a wellbore. The packer assembly includes a packer mandrel on which a packer is received and held in place. The packer mandrel includes a housing that forms an internal passage through which wellbore fluids are pumped. The housing also includes an outer surface that forms a recess in which a packer is received and held. The packer may be a conventional type hydraulically set or mechanically set packer. Thus, the packer may be set independently of actuation of the pump at any location within the wellbore casing. When the submergible pumping system must be moved or serviced, the packer assembly and the remainder of the submergible pumping system are moved as a single unit.

Abstract: A centrifugal pump adapted to be positioned in a wellbore in an inverted position to pump fluids downhole includes a pump housing, a rotatable shaft positioned within the pump housing, at least one pump stage positioned within the pump housing, with each pump stage comprising an impeller connected to and fixed relative to the shaft, and a stationary diffuser, and an upthrust bearing assembly positioned within the pump housing and comprising a rotatable thrust plate connected to the shaft and cooperating with a stationary thrust plate supported to the pump housing. The upthrust bearing assembly eliminates the need for a separate costly bearing assembly, such as would be included within an additional motor protector, when a centrifugal pump is positioned in a wellbore in an inverted position to pump fluids downhole.