%0 Journal Article
%T Field test of the drill-bit vibration signal detection using portable seismometers<br>流动地震仪检测钻头振动信号的现场试验
%A YANG Wei
%A GE Hong-kui
%A NING Jing
%A LIN Jian-min
%A <br>杨微
%A 葛洪魁
%A 宁靖
%A 林建民
%J 地球物理学进展
%D 2007
%I 
%X It is a important way to explore the undrilled formations by recording the drill-bit vibration signal while drilling,namely SWD.SWD is helpful to eliminate the geological uncertainty and potential hazard.By analyzing the signal characteristic of the drill-bit vibration and performance difference of traditional multi-channel geophones instrument and the portable digital seismometers,we proposed a new way to detect the seismic signal while drilling.In it the advanced portable seismometers are used as transducers in a array.Seismometers with high sensitivity will record the vibration signal continuously while drilling.The preliminary field experiment shows this SWD scenario is feasible.The signal to noise ratio(S/N) obtained by seismometers is higher than geophones.This new approach can be operated easily by drilling engineers and opens a new way to the SWD technique.
%K seismic while drilling
%K seismometer
%K drill-bit vibration
%K signal detection<br>随钻地震
%K 地震仪
%K 井下振动
%K 信号检测
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=1E44AE713D8A6DE0&jid=65CE641AB2DEAAF8B2D39ECB6B6B6C80&aid=C93C7C41FA1789B4&yid=A732AF04DDA03BB3&vid=BC12EA701C895178&iid=0B39A22176CE99FB&sid=6837BC93241057EF&eid=3EABEBD973E45554&journal_id=1004-2903&journal_name=地球物理学进展&referenced_num=0&reference_num=26