Downhole automatic connection device and method for oil pipe internal communication cable used for intelligent layered water injection
US10550647B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Nov 29, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/6315
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a downhole automatic connection device for an oil pipe internal communication cable for intelligent layered water injection. The connection device comprises a water injection pipe string in which a cable lowering mechanism is arranged. The cable lowering mechanism comprises a cable, a cable female connector, a motor and load-bearing blades. The cable female connector comprises a female connector shell, a jack insulating plate and an electromagnet. A cable male connector is also fixedly arranged in the water injection pipe string. The cable male connector comprises a male connector shell, a pin insulating plate and an NdFeB magnet. A pin wire welding point is electrically connected with a sensor on an intelligent water distributor. A lead arranged in the pin insulating plate is connected between a pin and the pin wire welding point. The present invention also discloses a connection method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.