ELECTRICAL SUBMERSIBLE PUMP SYSTEM HAVING HIGH TEMPERATURE INSULATION MATERIALS

• Main Authors: FREY, JEFFREY, REYNOLDS, JACKSON E, LIVINGSTON, DAVID W, EVENSON, JIM F, KORTE, DAVID G, RUMBAUGH, MICHAEL
• Format: Patent
• Language: English; French
• Published: 22.03.2012
• Subjects: BLASTING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MINING; NON-POSITIVE DISPLACEMENT PUMPS; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

Electric submersible well pumping systems operable in well temperatures of above about 180°C (356°F) utilize high temperature electrical insulation. The electrical insulation includes E-base polyimide films or perfluoropolymer TE films on various components. The insulation films are employed around magnet wires that are threaded through slots in the stator. Slot insulation of E-base polyimide or perfluoropolymer TE film surrounds the magnet wires in the stator slots. Sheets of E-base polyimide or perfluoropolymer TE film extend around and between phase loops of the magnet wire at the lower end of the stator. The motor contains a PAO oil having additives to dissipate acid generated by epoxy used in the motor.