A transmission system in a downhole component comprises a data transmission element in both ends of the downhole component. Each data transmission element houses an electrically conducting coil in a MCEI circular trough. An electrical conductor connects both the transmission elements. The electrical...http://www.google.fr/patents/US20050285754?utm_source=gb-gplus-shareBrevet US20050285754 - Downhole transmission system
Numéro de demande: 10/878,193 Numéro de publication: US 2005/0285754 A1 Date de dépôt: 28 juin 2004 Brevet délivré: US7319410 ( Date de délivrance 15 janv. 2008)