DUAL TRANSDUCER COMMUNICATIONS NODE INCLUDING PIEZO PRETENSIONING FOR ACOUSTIC WIRELESS NETWORKS AND METHOD EMPLOYING SAME

摘要

An apparatus and method for securing a piezoelectric element in anelectroacousticcommunications node used in a downhole wireless telemetry system. An end massis secured tothe piezoelectric element. At least one fastener attaches a pre-tensioningsupport plate to ahousing of the node. The pre-tensioning support plate and the at least onefastener impart atensioning force to the end mass and/or the piezoelectric element when the pre-tensioning supportplate and the end mass and/or the piezoelectric element are secured to thehousing.