Gas resistant pothead system and method for electric submersible motors
First Claim
1. A method for implementing a gas seal around a power cable connection to a submersible motor, said method comprising:
- wrapping lead foil around a motor lead cable extending through a pothead comprising a pothead body;
continuing the lead foil wrapping around an outer diameter of a sleeve of an insulating block inside the pothead, the motor lead cable extending through the sleeve of the insulating block;
mechanically reinforcing the lead foil wrapping with an encapsulant that holds the lead foil in place around the motor lead cable inside the pothead;
gold plating at least a portion of the pothead body and the insulating block inside the pothead body; and
diffusion bonding the lead foil to the gold plating of the insulating block.
2 Assignments
0 Petitions
Accused Products
Abstract
A gas resistant pothead system and method for electric submersible motors. A gas resistant pothead system includes a lead foil wrapped motor lead cable (MLE) extending through a pothead, a sleeve of an insulator block inside the pothead, the sleeve including gold plating and lead-foil wrapping over the gold plating, and a lead-to-gold seal formed between the gold plating of the sleeve and the lead foil wrapping over the gold plating. A method of creating a seal to gas around a power cable connection to a downhole electric submersible motor includes wrapping lead foil around a MLE extending through a pothead, continuing the lead foil wrapping around a gold-plated sleeve of an insulating block inside the pothead, mechanically reinforcing the lead foil with an encapsulant, and bonding the lead foil to the gold plating of the insulating block.
15 Citations
13 Claims
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1. A method for implementing a gas seal around a power cable connection to a submersible motor, said method comprising:
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wrapping lead foil around a motor lead cable extending through a pothead comprising a pothead body; continuing the lead foil wrapping around an outer diameter of a sleeve of an insulating block inside the pothead, the motor lead cable extending through the sleeve of the insulating block; mechanically reinforcing the lead foil wrapping with an encapsulant that holds the lead foil in place around the motor lead cable inside the pothead; gold plating at least a portion of the pothead body and the insulating block inside the pothead body; and diffusion bonding the lead foil to the gold plating of the insulating block. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A gas seal apparatus comprising:
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a motor lead cable extending through a pothead comprising a pothead body; lead foil wrapped around at least a portion of the motor lead cable; a sleeve of an insulator block inside the pothead, the sleeve comprising gold plating and lead foil wrapping; and a lead-to-gold diffusion bonded seal formed between the gold plating of the sleeve and the lead foil wrapping. - View Dependent Claims (11, 12, 13)
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Specification