Downhole wireless telemetry system using discrete multi-tone...

Details Downhole wireless telemetry system using discrete multi-tone... Downhole wireless telemetry system using discrete multi-tone...

E - Fixed Constructions

21

B

E21B 47/12 (2006.01) G01V 3/00 (2006.01) H04B 7/24 (2006.01) H04L 27/26 (2006.01) H04H 9/00 (2006.01)

Patent

CA 2514860

A communication system usable in a borehole in which a downhole modem (220) wirelessly communicates with a surface modem (230) using discrete multi-tone (~DMT~) modulation. The communication may be one-way (i.e., from downhole modem (220) to surface modem (230), or vice versa) or two-way between the two modems.

Cette invention concerne un système de communication pouvant être utilisé dans un puits de forage. Selon ce système, un modem de fond établit une communication sans fil avec un modem de surface à l'aide d'une modulation multitonalité discrète (DMT). La communication peut être unidirectionnelle (autrement dit envoyée du modem de fond au modem de surface ou inversement) ou bidirectionnelle entre les deux modems.

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