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1. 发明申请

WO2006007017A1 ACOUSTIC TELEMETRY WELLBORE SYSTEM EMPLOYING ONE OR MORE LOW-FREQUENCY ACOUSTIC ATTENUATORS 审中-公开
标题翻译：使用一个或多个低频声音衰减器的声学电视井筒系统
公开(公告)号：WO2006007017A1
公开(公告)日：2006-01-19
申请号：PCT/US2005/014525
申请日：2005-04-27
申请人： HALLIBURTON ENERGY SERVICES, INC. , SHAH, Vimal, V. , LINYAEV, Eugene, R. , KYLE, Donald, G. , GARDNER, Wallace, R. , RODNEY, Paul, F.
发明人： SHAH, Vimal, V. , LINYAEV, Eugene, R. , KYLE, Donald, G. , GARDNER, Wallace, R. , RODNEY, Paul, F.
IPC分类号： G01V3/00
CPC分类号： E21B47/16 , G01V11/002
摘要： A drill pipe (134) forms an acoustic transmission channel for data to be transmitted from a downhole transceiver (136) to a surface transceiver (132). By positioning a first low frequency acoustic attenuator (154) between a drill bit (156) and the downhole transceiver (136), acoustic noise generated by the drill bit is attenuated. Similarly, by positioning the surface transceiver (132) between the top of the drill pipe (134) and a second low frequency acoustic attenuator (130), acoustic noise generated by surface equipment is attenuated. In this manner, the first and second low frequency acoustic attenuators (130, 154) serve as terminators for the acoustic transmission channel. Finally, by combining a third low frequency acoustic attenuator (138) positioned between first and second sections of the drill pipe with first and second acoustic transceivers (136, 140) acoustically isolated from one another by the third low frequency acoustic attenuator (138) and non-acoustically coupled to one another for bi-directional exchanges of signals, an acoustic repeater is provided for the transmission channel.
摘要翻译：钻杆（134）形成用于从井下收发器（136）传输到地面收发器（132）的数据的声传输通道。通过将钻头（156）和井下收发器（136）之间的第一低频声衰减器（154）定位，钻头产生的声学噪声被衰减。类似地，通过将表面收发器（132）定位在钻杆（134）的顶部和第二低频声衰减器（130）之间，由表面设备产生的声学噪声被衰减。以这种方式，第一和第二低频声衰减器（130,154）用作声传输通道的终端器。最后，通过将位于钻杆的第一和第二部分之间的第三低频声衰减器（138）与由第三低频声衰减器（138）彼此声隔离的第一和第二声收发器（136,140）组合，以及非声学地彼此耦合用于信号的双向交换，为传输信道提供声中继器。

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