NO336237B1
Ruggedized multi-layer printed circuit board based downhole antenna
Abstract
"Antenna, method and hole bottom tool". The disclosure discloses a ferrite core antenna based on printed circuit board. The carcasses 54,58 of the plates 50,52 form the windings for the antenna, and several layers 62a, 62b, 62c of the printed circuit board support a ferrite core 74 for the on-site windings. The disclosure also discloses the use of such printed circuit board-based ferrite core antennas in electromagnetic wave resistivity tools at the bottom of the hole, so that azimuthally sensitive resistivity readings may be made, and imaging of the well not Coated can be performed, even on oil-based drilling fluids.
Term
No projected expiry on record.
- Priority
- Filed
- Granted
- Today
44 members in 8 offices
Priority claims6
| Document | Office | Kind | Date |
|---|---|---|---|
| 25418402 | United States of America | A | |
| 0329791 | United States of America | W | |
| 254184 | – | – | – |
| PCTUS200329791 | – | – | – |
| US20020254184 | – | – | – |
| WO2003US29791 | – | – | – |
Members44
| Document | Office | Kind | |
|---|---|---|---|
| US796953A | United States of America | A | |
| US2004056816A1 | United States of America | A1 | |
| CA2499832A1 | Canada | A1 | |
| CA2693270A1 | Canada | A1 | |
| CA2861674A1 | Canada | A1 | |
| WO2004030149A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU2003275099A1 | Australia | A1 | |
| NO20051150D0 | Norway | D0 | |
| NO20051150L | Norway | L | |
| NO20141286L | Norway | L | |
| NO20150155L | Norway | L | |
| NO20171070A1 | Norway | A1 | |
| EP1550179A1 | European Patent Office (EPO) | A1 | |
| BR0314581A | Brazil | A | |
| US2006022887A1 | United States of America | A1 | |
| US2006157277A1 | United States of America | A1 | |
| US7098858B2 | United States of America | B2 | |
| EP1550179A4 | European Patent Office (EPO) | A4 | |
| AU2003275099B2 | Australia | B2 | |
| AU2003275099C1 | Australia | C1 | |
| AU2007227158A1 | Australia | A1 | |
| CA2644948A1 | Canada | A1 | |
| WO2007109405A2 | World Intellectual Property Organization (WIPO) | A2 | |
| US7345487B2 | United States of America | B2 | |
| GB0816505D0 | United Kingdom | D0 | |
| NO20084354L | Norway | L | |
| GB2450266A | United Kingdom | A | |
| WO2007109405A3 | World Intellectual Property Organization (WIPO) | A3 | |
| AU2007227158B2 | Australia | B2 | |
| CA2499832C | Canada | C | |
| GB2450266B | United Kingdom | B | |
| US7839346B2 | United States of America | B2 | |
| CA2644948C | Canada | C | |
| BRPI0709650A2 | Brazil | A2 | |
| CA2693270C | Canada | C | |
| NO336237B1This record | Norway | B1 | |
| NO337511B1 | Norway | B1 | |
| CA2861674C | Canada | C | |
| EP1550179B1 | European Patent Office (EPO) | B1 | |
| BRPI0314581B1 | Brazil | B1 | |
| NO342375B1 | Norway | B1 | |
| BRPI0709650B1 | Brazil | B1 | |
| NO343127B1 | Norway | B1 | |
| NO344462B1 | Norway | B1 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Lapsed by not paying the annual feesLapsedMM1K | MM1K |
Numbers
- Publication
- 336237
- Publication, DOCDB
- 336237
- Publication, EPODOC
- NO336237B
- Application
- 1150
- Application, DOCDB
- 20051150
- Application, EPODOC
- NO20050001150
Titles2
- English
- Multilayer PCB-based ferrite core antenna for downhole electromagnetic resistivity tools
- Norwegian
- Flerlags kretskort-basert ferrittkjerneantenne for nedihulls elektromagnetiske resistivitetsverktøy
Classification
- CPC, 4
- H01Q7/08
- G01V3/30
- H01Q1/04
- H01Q1/38
- IPC, 4
- G01V3 30
- H01Q1 04
- H01Q1 38
- H01Q7 08