Providing electrical isolation for a downhole device
US7007756B2 · kind B2 · utility
53Cited by
12References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2003 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Mar 10, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An isolation apparatus is provided between an electrical conductor and an electrically-activated well tool. The isolation apparatus has a blocking element to enable a signal having a first electrical polarity to pass through the element. The blocking element blocks a signal having a second electrical polarity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.