Abstract: A hanger system for a well includes a pipe spool and a tubing hanger removably coupled to the pipe spool. The pipe spool includes a spool housing defining a cylindrical spool bore extending longitudinally through the spool housing, an electrical port in the spool housing with an electrical port opening in an inner surface of the spool housing, a communication port in the spool housing with a communication port opening in the inner surface of the spool housing, and a control port in the spool housing having a control port opening in the inner surface of the spool housing. The communication port connects to a communication module, the control port connects to a control fluid supply, and the electrical port connects to a power supply. The tubing hanger includes a hanger housing, and an electrical conduit, communication conduit, and control conduit extending through the hanger housing.

Abstract: An integrated system is disclosed to handle production of multiphase fluid consisting of oil, gas and water. The production stream is first separated into two streams: a liquid dominated stream (GVF <5% for example) and a gas dominated stream (GVF >95% for example). The separation can be done through shrouds, cylindrical cyclonic, gravity, in-line or the like separation techniques. The two streams are then routed separately to pumps which pump dissimilar fluids, such as a liquid pump and a gas compressor, and subsequently recombined. Both pumps are driven by a single motor shaft which includes an internal passageway associated with one of the pumps for reception of the fluid from the other pump, thereby providing better cooling and greater overall efficiency of all systems associated therewith. A method for providing artificial lift or pressure boosting of multiphase fluid is also disclosed.

Abstract: A fluid rotor and a fluid stator. The fluid stator surrounds the fluid rotor. The fluid stator has an intake end and a discharge end. The fluid stator is shaped to be inserted into a wellbore. A shaft passes through a rotational axis of the fluid rotor. The shaft is attached to the fluid rotor to rotate in union with the fluid rotor. The shaft defines a central fluid passage that extends from the intake end of the fluid rotor to the discharge end of the fluid rotor. A balance piston surrounds the shaft. The balance piston extends from an outer surface of the shaft to an inner surface of the fluid stator. The balance piston is positioned at the intake end.

Abstract: A first fluid rotor that has a first fluid intake end and a first fluid discharge end. The first fluid rotor includes a shaft and an impeller. A second fluid rotor that has a second fluid intake end and a second fluid discharge end. The second fluid rotor is rotatably coupled to the first fluid rotor to rotate in unison with the first fluid rotor along a shared rotational axis. The first fluid intake end and the second fluid intake end are facing opposite directions. The second fluid rotor includes a second shaft and a second impeller. A first fluid stator surrounds the first fluid rotor. The first fluid stator is aligned along the rotational axis. The first fluid rotor and the first fluid stator form a first fluid stage. A second fluid stator surrounds the second fluid rotor. The second fluid stator is aligned along the rotational axis. The second fluid stator and the second fluid rotor form a second fluid stage. A flow crossover sub is positioned between the first fluid stage and the second fluid stage.

Abstract: A downhole production assembly includes a downhole pump that can be positioned at a downhole location in a wellbore, and a cavitation chamber located upstream of an inlet of the downhole pump in the wellbore. The cavitation chamber can induce cavitation in a wellbore fluid pumped in the uphole direction by the downhole pump to prevent scaling on the downhole pump.

Abstract: A well tool assembly, system, and method for handling well debris is described. The assembly includes an electric submersible pump (ESP) configured to be positioned within a wellbore and a well debris cutting tool configured to be positioned downhole relative to the ESP within the wellbore. The ESP is configured to rotate in a first direction to pump well fluid in an uphole direction. The well debris cutting tool is configured to rotate in a second direction opposite the first direction and to grind debris carried by the well fluid in the uphole direction.

Abstract: A motor includes a stator, a rotor shaft assembly carried within and supported to rotate by the stator and a closed-loop cooling system. The rotor shaft assembly includes a rotor separated from the stator by a radial gap. The rotor shaft assembly includes an elongate, hollow shaft about which the rotor is configured to rotate. The shaft includes an opening to flow fluid through a hollow portion of the shaft. The closed-loop cooling system includes multiple helical members positioned within the stator. The multiple helical members are configured to flow cooling liquid in a closed flow pathway defined by the radial gap, the opening and the hollow portion of the shaft during rotor rotation within the stator.

Abstract: An integrated system is disclosed to handle production of multiphase fluid consisting of oil, gas and water. The production stream is first separated into two streams: a liquid dominated stream (GVF<5% for example) and a gas dominated stream (GVF>95% for example). The separation can be done through shrouds, cylindrical cyclonic, gravity, in-line or the like separation techniques. The two streams are then routed separately to pumps which pump dissimilar fluids, such as a liquid pump and a gas compressor, and subsequently recombined. Both pumps are driven by a single motor shaft which includes an internal passageway associated with one of the pumps for reception of the fluid from the other pump, thereby providing better cooling and greater overall efficiency of all systems associated therewith. A method for providing artificial lift or pressure boosting of multiphase fluid is also disclosed.

Abstract: One example of a gerotor pump includes an inner rotor comprising multiple teeth, the inner rotor configured to rotate about a first longitudinal gerotor pump axis. The gerotor pump also includes a hollow outer rotor including an outer surface and an inner surface having substantially identical contours, the inner surface configured to engage with the multiple teeth and to rotate about a second longitudinal gerotor pump axis. The pump includes a pump housing within which the inner rotor and the outer rotor are disposed, wherein the outer surface of the outer rotor defines gaps between the pump housing and the outer rotor.

Abstract: Systems and methods for producing hydrocarbons from a subterranean well include a first electrical submersible pump section having an outer motor body, and a motor stator. A central bore extends through the motor body and is sized to accommodate a motor rotor assembly. A second electrical submersible pump section has the motor rotor assembly, a seal section, and a pump section. The first electrical submersible pump section has a downhole ring shaped to secure the first electrical submersible pump section to a downhole production tubing, and has an uphole ring shaped to secure the first electrical submersible pump section to an uphole production tubing. The second electrical submersible pump section has a deployment connector operable to connect to an installation line for rig-less installation and removal of the second electrical submersible pump section.

Abstract: One example of a gerotor pump includes an inner rotor comprising multiple teeth, the inner rotor configured to rotate about a first longitudinal gerotor pump axis. The gerotor pump also includes a hollow outer rotor including an outer surface and an inner surface having substantially identical contours, the inner surface configured to engage with the multiple teeth and to rotate about a second longitudinal gerotor pump axis. The pump includes a pump housing within which the inner rotor and the outer rotor are disposed, wherein the outer surface of the outer rotor defines gaps between the pump housing and the outer rotor.

Abstract: Systems and methods for decreasing a size of debris entering an electrical submersible pump assembly in a subterranean well with a debris handling assembly include a handler housing with an inner bore and a housing cutting profile located on an inner surface of the inner bore. A cutting blade is secured to a rotating shaft within the inner bore of the handler housing, the cutting blade being aligned with a first portion of the housing cutting profile. A mill is secured to the rotating shaft, the mill aligned with a second portion of the housing cutting profile. An annular mill space is defined by an outer surface of the mill and the inner surface of the inner bore, the annular mill space decreasing in a radial dimension in a downstream direction.

Abstract: A motorized pump including a motor and a pump around the motor. The pump rotor is integrated with the motor rotor, wherein the pump rotor has vanes. The motorized pump may be employed as an electrical submersible pump (ESP) in a wellbore.

Abstract: A motorized pump to pump fluid. The motorized pump includes a shaft disposed in a center portion of the motorized pump, a motor having a motor stator, and a pump having an internal diffuser and an external impeller, wherein the motor stator radially surrounds the pump. A housing radially encloses the motor stator, the internal diffuser, and the external impeller. The motor stator is disposed adjacent the housing.

Abstract: A chemical injection pump is installed below an electric submersible pump. In general, the chemical injection pump is either driven by an electric motor that draws power from the electric submersible pump motor or from energized fluid leaving the electric submersible pump output port. The electric submersible pump provides electric or hydraulic power to run the chemical injection pump.

Abstract: Systems and methods for providing artificial lift to wellbore fluids include a pump located within a wellbore. A motor is located uphole of the pump and a protector assembly is located between the pump and the motor. A downhole packer is located within the wellbore downhole of the pump. A sand diverter is located downhole of the pump and has a flow port assembly located uphole of the downhole packer, the sand diverter having a diverter inner bore in fluid communication with the wellbore downhole of the downhole packer. The flow port assembly has an inner sleeve that is moveable between an open position where an inner sleeve port assembly is aligned with an outer sleeve port assembly of an outer sleeve, and a closed position where the inner sleeve port assembly is unaligned with the outer sleeve port assembly.

Abstract: A system to enhance well control in slim completions in an oil well includes an electrical submersible pump (“ESP”) positioned within a casing and having at least a portion thereof extending outwardly from a production tubing positioned within the casing. The production tubing terminates adjacent a distal end portion of a pump discharge to thereby provide greater interstitial space between outer surfaces of the portion of the pump disposed to extend outwardly from the production tubing and inner walls of the casing. This increased interstitial space, for example, can assist in cost savings by reducing the rate of erosion damage to the ESP. Embodiments of the present invention can further include a valve connected to inner walls of the casing and positioned distal from the ESP to control the flow of hydrocarbons.

Abstract: One example of a gerotor pump includes an inner rotor comprising multiple teeth, the inner rotor configured to rotate about a first longitudinal gerotor pump axis. The gerotor pump also includes a hollow outer rotor including an outer surface and an inner surface having substantially identical contours, the inner surface configured to engage with the multiple teeth and to rotate about a second longitudinal gerotor pump axis. The pump includes a pump housing within which the inner rotor and the outer rotor are disposed, wherein the outer surface of the outer rotor defines gaps between the pump housing and the outer rotor.

Abstract: A system for providing artificial lift to wellbore fluids has a pump located within a wellbore and a motor located within the wellbore uphole of the pump. A seal assembly has a first side connected to the motor and a second side connected to the pump. The pump, motor, and seal assembly together form a submersible pump string. An uphole packer circumscribes the production tubular uphole of the motor. A downhole packer is located downhole of the pump. An uphole y-tool has an uphole y-tool first end in fluid communication with the production tubular and an uphole y-tool second end with a first uphole y-tool branch that is mechanically connected to the submersible pump string and a second uphole y-tool branch in fluid communication with a bypass tubular. The bypass tubular is positioned adjacent to the submersible pump string and extends between the uphole y-tool and the downhole packer.

Abstract: An apparatus for metering fluid in a subterranean well includes an electric submersible pump having a motor, a seal section and a pump assembly and a metering assembly. The metering assembly includes an upper pipe section with an outer diameter, the upper pipe section having an upper pressure sensing means, and a lower pipe section with an outer diameter smaller than the outer diameter of the upper pipe section, the lower pipe section having a lower pressure sensing means. A power cable is in electronic communication with the electric submersible pump and with the metering assembly.