Abstract: A seal includes an outer housing and a seal bag internal to the outer housing. The outer housing can be positioned between a pump and an electric motor of an electric submersible pump. The seal bag can include an outer layer and an inner layer. The outer layer can be made from a first material to retain a structure of the outer layer in a swellable state in a wellbore. The inner layer can be made from a second material that is swellable in the wellbore in response to contact with a polar substance to seal a tear in the outer layer.

Abstract: An electric submersible pump includes a pump and an electric motor coupled to the pump. An electric submersible pump also includes a seal that is positioned between the pump and the electric motor. The seal has an outer housing and a seal bag internal to the outer housing. The seal bag has an outer layer and an inner layer. The outer layer is made from a first material to maintain the structure of the seal bag in a swellable state within the wellbore environment. The inner layer is made from a second material that can swell in response to contact with a polar substance and seal a tear in the outer layer of the seal bag.

Abstract: An electric submersible pump includes a pump, an electric motor that is coupled to the pump by a rotatable shaft, a seal section that is positioned between the pump and the electric motor. The seal section contains an additive and a motor oil for the electric motor. The additive includes one or more superabsorbent polymers or imidate salts to contact the motor oil and to react with a wellbore fluid from a wellbore to prevent premature failure of the electric submersible pump from the wellbore fluid contamination of the motor oil.

Abstract: An electric submersible pump used to pump fluids inside a borehole during operation is described. The electric submersible pump and its motor can be powered using an inductive power coupling. The electric submersible pump comprises a sealed extension that houses a pickup inductive coil assembly that is electrically coupled to a power source at a surface of the borehole. Power runs through the primary inductive coil assembly and the primary inductive coil is positioned relative to the pickup inductive coil assembly such that the electrical current flowing in the primary inductive coil assembly from the power source and through the power cable induces a voltage in the pickup inductive coil assembly.

Abstract: Included are electric submersible pump assemblies, methods of use, and systems incorporating said electric submersible pump assemblies. An example electric submersible pump assembly comprises an electric submersible pump comprising a pump intake, a storage chamber in fluid communication with the discharge side of the electric submersible pump, and a tubing configured to allow for fluid communication between the pump intake and the storage chamber such that fluid may flow from the storage chamber into the pump intake.

Abstract: Included are inductively coupled sensors for downhole electric submersible pumps and methods of use. An example inductively coupled sensor comprises an electric submersible pump sensor, at least one receiving coil coupled to the electric submersible pump sensor; wherein the receiving coil is inductively coupled to a three-phase power cable of an electric submersible pump. An example method comprises placing an inductively coupled sensor in a wellbore, conducting current in the three-phase power cable; wherein current in the three-phase power cable induces a voltage in the receiving coil sufficient to power the electric submersible pump sensor, and sensing the operating parameter of the electric submersible pump with the electric submersible pump sensor.

Abstract: An electric submersible pump includes a pump, an electric motor that is coupled to the pump by a rotatable shaft, a seal section that is positioned between the pump and the electric motor. The seal section contains an additive and a motor oil for the electric motor. The additive includes one or more superabsorbent polymers or imidate salts to contact the motor oil and to react with a wellbore fluid from a wellbore to prevent premature failure of the electric submersible pump from the wellbore fluid contamination of the motor oil.

Abstract: An electric submersible pump includes a pump and an electric motor coupled to the pump. An electric submersible pump also includes a seal that is positioned between the pump and the electric motor. The seal has an outer housing and a seal bag internal to the outer housing. The seal bag has an outer layer and an inner layer. The outer layer is made from a first material to maintain the structure of the seal bag in a swellable state within the wellbore environment. The inner layer is made from a second material that can swell in response to contact with a polar substance and seal a tear in the outer layer of the seal bag.

Abstract: An electric submersible pump includes a pump, an electric motor that is coupled to the pump by a rotatable shaft, a seal section that is positioned between the pump and the electric motor. The seal section contains a sequestration device and a motor oil for the electric motor. The sequestration device includes a superabsorbent polymer to contact the motor oil and to react with a wellbore fluid from a wellbore to prevent premature failure of the electric submersible pump from the wellbore fluid contamination of the motor oil.

Abstract: Included are inductively coupled sensors for downhole electric submersible pumps and methods of use. An example inductively coupled sensor comprises an electric submersible pump sensor, at least one receiving coil coupled to the electric submersible pump sensor; wherein the receiving coil is inductively coupled to a three-phase power cable of an electric submersible pump. An example method comprises placing an inductively coupled sensor in a wellbore, conducting current in the three-phase power cable; wherein current in the three-phase power cable induces a voltage in the receiving coil sufficient to power the electric submersible pump sensor, and sensing the operating parameter of the electric submersible pump with the electric submersible pump sensor.

Abstract: Included are electric submersible pump assemblies, methods of use, and systems incorporating said electric submersible pump assemblies. An example electric submersible pump assembly comprises an electric submersible pump comprising a pump intake, a storage chamber in fluid communication with the discharge side of the electric submersible pump, and a tubing configured to allow for fluid communication between the pump intake and the storage chamber such that fluid may flow from the storage chamber into the pump intake.

Abstract: An electric submersible pump used to pump fluids inside a borehole during operation is described. The electric submersible pump and its motor can be powered using an inductive power coupling. The electric submersible pump comprises a sealed extension that houses a pickup inductive coil assembly that is electrically coupled to a power source at a surface of the borehole. Power runs through the primary inductive coil assembly and the primary inductive coil is positioned relative to the pickup inductive coil assembly such that the electrical current flowing in the primary inductive coil assembly from the power source and through the power cable induces a voltage in the pickup inductive coil assembly.

Abstract: The present invention relates to a method and apparatus for reducing the occurrences of lateral wellbores being occluded by fines such as sand and silt. More specifically, the invention relates to discharging a portion of the output of an electrical submersible pump through nozzles that pass through the sidewalls of tubing, the tubing being located in the lateral wellbore.

Abstract: The present invention relates to a method and apparatus for reducing the occurrences of lateral wellbores being occluded by fines such as sand and silt. More specifically, the invention relates to discharging a portion of the output of an electrical submersible pump through nozzles that pass through the sidewalls of tubing, the tubing being located in the lateral wellbore.

Abstract: An electro-mechanical cable for use in cable deployed pumping systems includes a containment layer surrounding a cable core and constructed to restrain outward radial expansion of the core while permitting longitudinal expansion.