Gas resistant pothead system and method for electric submersible motors
US10819064B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | May 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R43/005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.