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1. (WO2018044469) DUAL TRANSDUCER COMMUNICATIONS NODE FOR DOWNHOLE ACOUSTIC WIRELESS NETWORKS AND METHOD EMPLOYING SAME

Pub. No.:    WO/2018/044469    International Application No.:    PCT/US2017/044931
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Aug 02 01:59:59 CEST 2017
IPC: E21B 47/16
Applicants: EXXONMOBIL UPSTREAM RESEARCH COMPANY
SONG, Limin
ZHANG, Yibing
WALKER, Katie, M.
WOLF, Henry, Alan
Inventors: SONG, Limin
ZHANG, Yibing
WALKER, Katie, M.
WOLF, Henry, Alan
Title: DUAL TRANSDUCER COMMUNICATIONS NODE FOR DOWNHOLE ACOUSTIC WIRELESS NETWORKS AND METHOD EMPLOYING SAME
Abstract:
An electro-acoustic communications node system and method for downhole wireless telemetry, the system including a housing (386) for mounting to or with a tubular body (310); a receiver transducer (388) positioned within the housing, the receiver transducer structured and arranged to receive acoustic waves that propagate through the tubular member; a transmitter transducer (336) and a processor, positioned within the housing and arranged to retransmit the acoustic waves to another acoustic receiver in a different housing, using the tubular member for the acoustic telemetry. In some embodiments, the transducers may be piezoelectric transducers and/or magnetostrictive transducers. Included in the housing is also a power source (390) comprising one or more batteries. A downhole wireless telemetry system and a method of monitoring a hydrocarbon well are also provided.