Data transmission element for downhole drilling components
US6992554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2003 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Jul 7, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/533
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A robust data transmission element for transmitting information between downhole components, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The data transmission element components include a generally U-shaped annular housing, a generally U-shaped magnetically conductive, electrically insulating element such as ferrite, and an insulated conductor. Features on the magnetically conducting, electrically insulating element and the annular housing create a pocket when assembled. The data transmission element is filled with a polymer to retain the components within the annular housing by filling the pocket with the polymer. The polymer can bond with the annular housing and the insulated conductor but preferably not the magnetically conductive, electrically insulating element. A data transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.